Bump version: 0.12.0-beta.0 → 0.12.0

This exposes the `LANCEDB_LOG` environment variable in node, so that
users can now turn on logging.

In addition, fixes a bug where only the top-level error from Rust was
being shown. This PR makes sure the full error chain is included in the
error message. In the future, will improve this so the error chain is
set on the [cause](https://nodejs.org/api/errors.html#errorcause)
property of JS errors https://github.com/lancedb/lancedb/issues/1779

Fixes #1774

.bumpversion.toml

@@ -1,5 +1,5 @@
 [tool.bumpversion]
-current_version = "0.10.0-beta.1"
+current_version = "0.12.0"
 parse = """(?x)
     (?P<major>0|[1-9]\\d*)\\.
     (?P<minor>0|[1-9]\\d*)\\.
@@ -24,34 +24,87 @@ commit = true
 message = "Bump version: {current_version} → {new_version}"
 commit_args = ""
 
+# Java maven files
+pre_commit_hooks = [
+  """
+    NEW_VERSION="${BVHOOK_NEW_MAJOR}.${BVHOOK_NEW_MINOR}.${BVHOOK_NEW_PATCH}"
+    if [ ! -z "$BVHOOK_NEW_PRE_L" ] && [ ! -z "$BVHOOK_NEW_PRE_N" ]; then
+        NEW_VERSION="${NEW_VERSION}-${BVHOOK_NEW_PRE_L}.${BVHOOK_NEW_PRE_N}"
+    fi
+    echo "Constructed new version: $NEW_VERSION"
+    cd java && mvn versions:set -DnewVersion=$NEW_VERSION && mvn versions:commit
+
+    # Check for any modified but unstaged pom.xml files
+    MODIFIED_POMS=$(git ls-files -m | grep pom.xml)
+    if [ ! -z "$MODIFIED_POMS" ]; then
+        echo "The following pom.xml files were modified but not staged. Adding them now:"
+        echo "$MODIFIED_POMS" | while read -r file; do
+            git add "$file"
+            echo "Added: $file"
+        done
+    fi
+    """,
+]
+
 [tool.bumpversion.parts.pre_l]
-values = ["beta", "final"]
 optional_value = "final"
+values = ["beta", "final"]
 
 [[tool.bumpversion.files]]
 filename = "node/package.json"
-search = "\"version\": \"{current_version}\","
 replace = "\"version\": \"{new_version}\","
+search = "\"version\": \"{current_version}\","
 
 [[tool.bumpversion.files]]
 filename = "nodejs/package.json"
-search = "\"version\": \"{current_version}\","
 replace = "\"version\": \"{new_version}\","
+search = "\"version\": \"{current_version}\","
 
 # nodejs binary packages
 [[tool.bumpversion.files]]
 glob = "nodejs/npm/*/package.json"
-search = "\"version\": \"{current_version}\","
 replace = "\"version\": \"{new_version}\","
+search = "\"version\": \"{current_version}\","
+
+# vectodb node binary packages
+[[tool.bumpversion.files]]
+glob = "node/package.json"
+replace = "\"@lancedb/vectordb-darwin-arm64\": \"{new_version}\""
+search = "\"@lancedb/vectordb-darwin-arm64\": \"{current_version}\""
+
+[[tool.bumpversion.files]]
+glob = "node/package.json"
+replace = "\"@lancedb/vectordb-darwin-x64\": \"{new_version}\""
+search = "\"@lancedb/vectordb-darwin-x64\": \"{current_version}\""
+
+[[tool.bumpversion.files]]
+glob = "node/package.json"
+replace = "\"@lancedb/vectordb-linux-arm64-gnu\": \"{new_version}\""
+search = "\"@lancedb/vectordb-linux-arm64-gnu\": \"{current_version}\""
+
+[[tool.bumpversion.files]]
+glob = "node/package.json"
+replace = "\"@lancedb/vectordb-linux-x64-gnu\": \"{new_version}\""
+search = "\"@lancedb/vectordb-linux-x64-gnu\": \"{current_version}\""
+
+[[tool.bumpversion.files]]
+glob = "node/package.json"
+replace = "\"@lancedb/vectordb-win32-x64-msvc\": \"{new_version}\""
+search = "\"@lancedb/vectordb-win32-x64-msvc\": \"{current_version}\""
 
 # Cargo files
 # ------------
 [[tool.bumpversion.files]]
 filename = "rust/ffi/node/Cargo.toml"
-search = "\nversion = \"{current_version}\""
 replace = "\nversion = \"{new_version}\""
+search = "\nversion = \"{current_version}\""
 
 [[tool.bumpversion.files]]
 filename = "rust/lancedb/Cargo.toml"
-search = "\nversion = \"{current_version}\""
 replace = "\nversion = \"{new_version}\""
+search = "\nversion = \"{current_version}\""
+
+[[tool.bumpversion.files]]
+filename = "nodejs/Cargo.toml"
+replace = "\nversion = \"{new_version}\""
+search = "\nversion = \"{current_version}\""

.github/workflows/docs_test.yml

@@ -24,7 +24,7 @@ env:
 jobs:
   test-python:
     name: Test doc python code
-    runs-on: "warp-ubuntu-latest-x64-4x"
+    runs-on: ubuntu-24.04
     steps:
     - name: Checkout
       uses: actions/checkout@v4
@@ -60,7 +60,7 @@ jobs:
         for d in *; do cd "$d"; echo "$d".py; python "$d".py; cd ..; done
   test-node:
     name: Test doc nodejs code
-    runs-on: "warp-ubuntu-latest-x64-4x"
+    runs-on: ubuntu-24.04
     timeout-minutes: 60
     strategy:
       fail-fast: false

.github/workflows/java-publish.yml

@@ -94,11 +94,16 @@ jobs:
           mkdir -p ./core/target/classes/nativelib/darwin-aarch64 ./core/target/classes/nativelib/linux-aarch64
           cp ../liblancedb_jni_darwin_aarch64.zip/liblancedb_jni.dylib ./core/target/classes/nativelib/darwin-aarch64/liblancedb_jni.dylib
           cp ../liblancedb_jni_linux_aarch64.zip/liblancedb_jni.so ./core/target/classes/nativelib/linux-aarch64/liblancedb_jni.so
+      - name: Dry run
+        if: github.event_name == 'pull_request'
+        run: |
+          mvn --batch-mode -DskipTests package
       - name: Set github
         run: |
           git config --global user.email "LanceDB Github Runner"
           git config --global user.name "dev+gha@lancedb.com"
       - name: Publish with Java 8
+        if: github.event_name == 'release'
         run: |
           echo "use-agent" >> ~/.gnupg/gpg.conf
           echo "pinentry-mode loopback" >> ~/.gnupg/gpg.conf

.github/workflows/make-release-commit.yml

@@ -30,7 +30,7 @@ on:
         default: true
         type: boolean
       other:
-        description: 'Make a Node/Rust release'
+        description: 'Make a Node/Rust/Java release'
         required: true
         default: true
         type: boolean

.github/workflows/rust.yml

@@ -26,15 +26,14 @@ env:
 jobs:
   lint:
     timeout-minutes: 30
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     defaults:
       run:
         shell: bash
-        working-directory: rust
     env:
       # Need up-to-date compilers for kernels
-      CC: gcc-12
-      CXX: g++-12
+      CC: clang-18
+      CXX: clang++-18
     steps:
     - uses: actions/checkout@v4
       with:
@@ -50,21 +49,21 @@ jobs:
     - name: Run format
       run: cargo fmt --all -- --check
     - name: Run clippy
-      run: cargo clippy --all --all-features -- -D warnings
+      run: cargo clippy --workspace --tests --all-features -- -D warnings
   linux:
     timeout-minutes: 30
     # To build all features, we need more disk space than is available
-    # on the GitHub-provided runner. This is mostly due to the the
+    # on the free OSS github runner. This is mostly due to the the
     # sentence-transformers feature.
-    runs-on: warp-ubuntu-latest-x64-4x
+    runs-on: ubuntu-2404-4x-x64
     defaults:
       run:
         shell: bash
         working-directory: rust
     env:
       # Need up-to-date compilers for kernels
-      CC: gcc-12
-      CXX: g++-12
+      CC: clang-18
+      CXX: clang++-18
     steps:
     - uses: actions/checkout@v4
       with:
@@ -77,6 +76,12 @@ jobs:
       run: |
           sudo apt update
           sudo apt install -y protobuf-compiler libssl-dev
+    - name: Make Swap
+      run: |
+        sudo fallocate -l 16G /swapfile
+        sudo chmod 600 /swapfile
+        sudo mkswap /swapfile
+        sudo swapon /swapfile
     - name: Start S3 integration test environment
       working-directory: .
       run: docker compose up --detach --wait

Cargo.toml

@@ -18,15 +18,16 @@ repository = "https://github.com/lancedb/lancedb"
 description = "Serverless, low-latency vector database for AI applications"
 keywords = ["lancedb", "lance", "database", "vector", "search"]
 categories = ["database-implementations"]
+rust-version = "1.80.0" # TODO: lower this once we upgrade Lance again.
 
 [workspace.dependencies]
-lance = { "version" = "=0.17.0", "features" = ["dynamodb"] }
-lance-index = { "version" = "=0.17.0" }
-lance-linalg = { "version" = "=0.17.0" }
-lance-table = { "version" = "=0.17.0" }
-lance-testing = { "version" = "=0.17.0" }
-lance-datafusion = { "version" = "=0.17.0" }
-lance-encoding = { "version" = "=0.17.0" }
+lance = { "version" = "=0.19.1", "features" = ["dynamodb"] }
+lance-index = { "version" = "=0.19.1" }
+lance-linalg = { "version" = "=0.19.1" }
+lance-table = { "version" = "=0.19.1" }
+lance-testing = { "version" = "=0.19.1" }
+lance-datafusion = { "version" = "=0.19.1" }
+lance-encoding = { "version" = "=0.19.1" }
 # Note that this one does not include pyarrow
 arrow = { version = "52.2", optional = false }
 arrow-array = "52.2"
@@ -38,16 +39,20 @@ arrow-arith = "52.2"
 arrow-cast = "52.2"
 async-trait = "0"
 chrono = "0.4.35"
-datafusion-physical-plan = "40.0"
+datafusion-common = "41.0"
+datafusion-physical-plan = "41.0"
+env_logger = "0.10"
 half = { "version" = "=2.4.1", default-features = false, features = [
     "num-traits",
 ] }
 futures = "0"
 log = "0.4"
+moka = { version = "0.11", features = ["future"] }
 object_store = "0.10.2"
 pin-project = "1.0.7"
 snafu = "0.7.4"
 url = "2"
 num-traits = "0.2"
+rand = "0.8"
 regex = "1.10"
 lazy_static = "1"

README.md

@@ -82,4 +82,4 @@ result = table.search([100, 100]).limit(2).to_pandas()
 
 ## Blogs, Tutorials & Videos
 * 📈 <a href="https://blog.lancedb.com/benchmarking-random-access-in-lance/">2000x better performance with Lance over Parquet</a>
-* 🤖 <a href="https://github.com/lancedb/lancedb/blob/main/docs/src/notebooks/youtube_transcript_search.ipynb">Build a question and answer bot with LanceDB</a>
+* 🤖 <a href="https://github.com/lancedb/vectordb-recipes/tree/main/examples/Youtube-Search-QA-Bot">Build a question and answer bot with LanceDB</a>

docs/mkdocs.yml

@@ -34,6 +34,7 @@ theme:
     - navigation.footer
     - navigation.tracking
     - navigation.instant
+    - content.footnote.tooltips
   icon:
     repo: fontawesome/brands/github
     annotation: material/arrow-right-circle
@@ -65,6 +66,11 @@ plugins:
 markdown_extensions:
   - admonition
   - footnotes
+  - pymdownx.critic
+  - pymdownx.caret
+  - pymdownx.keys
+  - pymdownx.mark
+  - pymdownx.tilde
   - pymdownx.details
   - pymdownx.highlight:
       anchor_linenums: true
@@ -84,6 +90,9 @@ markdown_extensions:
   - pymdownx.emoji:
       emoji_index: !!python/name:material.extensions.emoji.twemoji
       emoji_generator: !!python/name:material.extensions.emoji.to_svg
+  - markdown.extensions.toc:
+      baselevel: 1
+      permalink: ""
 
 nav:
   - Home:
@@ -91,7 +100,7 @@ nav:
       - 🏃🏼‍♂️ Quick start: basic.md
       - 📚 Concepts:
           - Vector search: concepts/vector_search.md
-          - Indexing: 
+          - Indexing:
             - IVFPQ: concepts/index_ivfpq.md
             - HNSW: concepts/index_hnsw.md
           - Storage: concepts/storage.md
@@ -100,12 +109,25 @@ nav:
           - Working with tables: guides/tables.md
           - Building a vector index: ann_indexes.md
           - Vector Search: search.md
-          - Full-text search: fts.md
+          - Full-text search (native): fts.md
+          - Full-text search (tantivy-based): fts_tantivy.md
           - Building a scalar index: guides/scalar_index.md
           - Hybrid search:
               - Overview: hybrid_search/hybrid_search.md
               - Comparing Rerankers: hybrid_search/eval.md
               - Airbnb financial data example: notebooks/hybrid_search.ipynb
+          - RAG:
+              - Vanilla RAG: rag/vanilla_rag.md
+              - Multi-head RAG: rag/multi_head_rag.md
+              - Corrective RAG: rag/corrective_rag.md
+              - Agentic RAG: rag/agentic_rag.md
+              - Graph RAG: rag/graph_rag.md
+              - Self RAG: rag/self_rag.md
+              - Adaptive RAG: rag/adaptive_rag.md
+              - SFR RAG: rag/sfr_rag.md
+              - Advanced Techniques:
+                - HyDE: rag/advanced_techniques/hyde.md
+                - FLARE: rag/advanced_techniques/flare.md
           - Reranking:
               - Quickstart: reranking/index.md
               - Cohere Reranker: reranking/cohere.md
@@ -127,9 +149,10 @@ nav:
               - Reranking: guides/tuning_retrievers/2_reranking.md
               - Embedding fine-tuning: guides/tuning_retrievers/3_embed_tuning.md
       - 🧬 Managing embeddings:
-          - Overview: embeddings/index.md
+          - Understand Embeddings: embeddings/understanding_embeddings.md
+          - Get Started: embeddings/index.md
           - Embedding functions: embeddings/embedding_functions.md
-          - Available models: 
+          - Available models:
               - Overview: embeddings/default_embedding_functions.md
               - Text Embedding Functions:
                   - Sentence Transformers: embeddings/available_embedding_models/text_embedding_functions/sentence_transformers.md
@@ -165,6 +188,7 @@ nav:
           - Voxel51: integrations/voxel51.md
           - PromptTools: integrations/prompttools.md
           - dlt: integrations/dlt.md
+          - phidata: integrations/phidata.md
       - 🎯 Examples:
           - Overview: examples/index.md
           - 🐍 Python:
@@ -177,7 +201,7 @@ nav:
               - Evaluation: examples/python_examples/evaluations.md
               - AI Agent: examples/python_examples/aiagent.md
               - Recommender System: examples/python_examples/recommendersystem.md
-              - Miscellaneous: 
+              - Miscellaneous:
                   - Serverless QA Bot with S3 and Lambda: examples/serverless_lancedb_with_s3_and_lambda.md
                   - Serverless QA Bot with Modal: examples/serverless_qa_bot_with_modal_and_langchain.md
           - 👾 JavaScript:
@@ -187,9 +211,10 @@ nav:
               - TransformersJS Embedding Search: examples/transformerjs_embedding_search_nodejs.md
           - 🦀 Rust:
               - Overview: examples/examples_rust.md
-      - Studies:
+      - 📓 Studies:
           - ↗Improve retrievers with hybrid search and reranking: https://blog.lancedb.com/hybrid-search-and-reranking-report/
       - 💭 FAQs: faq.md
+      - 🔍 Troubleshooting: troubleshooting.md
       - ⚙️ API reference:
           - 🐍 Python: python/python.md
           - 👾 JavaScript (vectordb): javascript/modules.md
@@ -205,7 +230,7 @@ nav:
   - Quick start: basic.md
   - Concepts:
       - Vector search: concepts/vector_search.md
-      - Indexing: 
+      - Indexing:
         - IVFPQ: concepts/index_ivfpq.md
         - HNSW: concepts/index_hnsw.md
       - Storage: concepts/storage.md
@@ -214,12 +239,25 @@ nav:
       - Working with tables: guides/tables.md
       - Building an ANN index: ann_indexes.md
       - Vector Search: search.md
-      - Full-text search: fts.md
+      - Full-text search (native): fts.md
+      - Full-text search (tantivy-based): fts_tantivy.md
       - Building a scalar index: guides/scalar_index.md
       - Hybrid search:
           - Overview: hybrid_search/hybrid_search.md
           - Comparing Rerankers: hybrid_search/eval.md
           - Airbnb financial data example: notebooks/hybrid_search.ipynb
+      - RAG:
+          - Vanilla RAG: rag/vanilla_rag.md
+          - Multi-head RAG: rag/multi_head_rag.md
+          - Corrective RAG: rag/corrective_rag.md
+          - Agentic RAG: rag/agentic_rag.md
+          - Graph RAG: rag/graph_rag.md
+          - Self RAG: rag/self_rag.md
+          - Adaptive RAG: rag/adaptive_rag.md
+          - SFR RAG: rag/sfr_rag.md
+          - Advanced Techniques:
+            - HyDE: rag/advanced_techniques/hyde.md
+            - FLARE: rag/advanced_techniques/flare.md
       - Reranking:
           - Quickstart: reranking/index.md
           - Cohere Reranker: reranking/cohere.md
@@ -241,9 +279,10 @@ nav:
           - Reranking: guides/tuning_retrievers/2_reranking.md
           - Embedding fine-tuning: guides/tuning_retrievers/3_embed_tuning.md
   - Managing Embeddings:
-      - Overview: embeddings/index.md
+      - Understand Embeddings: embeddings/understanding_embeddings.md
+      - Get Started: embeddings/index.md
       - Embedding functions: embeddings/embedding_functions.md
-      - Available models: 
+      - Available models:
           - Overview: embeddings/default_embedding_functions.md
           - Text Embedding Functions:
               - Sentence Transformers: embeddings/available_embedding_models/text_embedding_functions/sentence_transformers.md
@@ -275,6 +314,7 @@ nav:
       - Voxel51: integrations/voxel51.md
       - PromptTools: integrations/prompttools.md
       - dlt: integrations/dlt.md
+      - phidata: integrations/phidata.md
   - Examples:
       - examples/index.md
       - 🐍 Python:
@@ -287,7 +327,7 @@ nav:
           - Evaluation: examples/python_examples/evaluations.md
           - AI Agent: examples/python_examples/aiagent.md
           - Recommender System: examples/python_examples/recommendersystem.md
-          - Miscellaneous: 
+          - Miscellaneous:
               - Serverless QA Bot with S3 and Lambda: examples/serverless_lancedb_with_s3_and_lambda.md
               - Serverless QA Bot with Modal: examples/serverless_qa_bot_with_modal_and_langchain.md
       - 👾 JavaScript:

docs/src/embeddings/available_embedding_models/text_embedding_functions/huggingface_embedding.md

@@ -1,5 +1,5 @@
 # Huggingface embedding models
-We offer support for all huggingface models (which can be loaded via [transformers](https://huggingface.co/docs/transformers/en/index) library). The default model is `colbert-ir/colbertv2.0` which also has its own special callout - `registry.get("colbert")` 
+We offer support for all Hugging Face models (which can be loaded via [transformers](https://huggingface.co/docs/transformers/en/index) library). The default model is `colbert-ir/colbertv2.0` which also has its own special callout - `registry.get("colbert")`. Some Hugging Face models might require custom models defined on the HuggingFace Hub in their own modeling files. You may enable this by setting `trust_remote_code=True`. This option should only be set to True for repositories you trust and in which you have read the code, as it will execute code present on the Hub on your local machine. 
 
 Example usage - 
 ```python

docs/src/embeddings/understanding_embeddings.md

@@ -0,0 +1,133 @@
+# Understand Embeddings
+
+The term **dimension** is a synonym for the number of elements in a feature vector. Each feature can be thought of as a different axis in a geometric space. 
+
+High-dimensional data means there are many features(or attributes) in the data.
+
+!!! example
+     1. An image is a data point and it might have thousands of dimensions because each pixel could be considered as a feature. 
+
+     2. Text data, when represented by each word or character, can also lead to high dimensions, especially when considering all possible words in a language.
+
+Embedding captures **meaning and relationships** within data by mapping high-dimensional data into a lower-dimensional space. It captures it by placing inputs that are more **similar in meaning** closer together in the **embedding space**. 
+
+## What are Vector Embeddings?
+
+Vector embeddings is a way to convert complex data, like text, images, or audio into numerical coordinates (called vectors) that can be plotted in an n-dimensional space(embedding space). 
+
+The closer these data points are related in the real world, the closer their corresponding numerical coordinates (vectors) will be to each other in the embedding space. This proximity in the embedding space reflects their semantic similarities, allowing machines to intuitively understand and process the data in a way that mirrors human perception of relationships and meaning.
+
+In a way, it captures the most important aspects of the data while ignoring the less important ones. As a result, tasks like searching for related content or identifying patterns become more efficient and accurate, as the embeddings make it possible to quantify how **closely related** different **data points** are and **reduce** the **computational complexity**.
+
+??? question "Are vectors and embeddings the same thing?"
+
+    When we say “vectors” we mean - **list of numbers** that **represents the data**. 
+    When we say “embeddings” we mean - **list of numbers** that **capture important details and relationships**.
+
+    Although the terms are often used interchangeably, “embeddings” highlight how the data is represented with meaning and structure, while “vector” simply refers to the numerical form of that representation.
+
+## Embedding vs Indexing
+
+We already saw that creating **embeddings** on data is a method of creating **vectors** for a **n-dimensional embedding space** that captures the meaning and relationships inherent in the data.
+
+Once we have these **vectors**, indexing comes into play. Indexing is a method of organizing these vector embeddings, that allows us to quickly and efficiently locate and retrieve them from the entire dataset of vector embeddings.
+
+## What types of data/objects can be embedded?
+
+The following are common types of data that can be embedded:
+
+1. **Text**: Text data includes sentences, paragraphs, documents, or any written content.
+2. **Images**:  Image data encompasses photographs, illustrations, or any visual content.
+3. **Audio**: Audio data includes sounds, music, speech, or any auditory content.
+4. **Video**:  Video data consists of moving images and sound, which can convey complex information.
+
+Large datasets of multi-modal data (text, audio, images, etc.) can be converted into embeddings with the appropriate model.
+
+!!! tip "LanceDB vs Other traditional Vector DBs"
+    While many vector databases primarily focus on the storage and retrieval of vector embeddings, **LanceDB** uses **Lance file format** (operates on a disk-based architecture), which allows for the storage and management of not just embeddings but also **raw file data (bytes)**. This capability means that users can integrate various types of data, including images and text, alongside their vector embeddings in a unified system.
+
+    With the ability to store both vectors and associated file data, LanceDB enhances the querying process. Users can perform semantic searches that not only retrieve similar embeddings but also access related files and metadata, thus streamlining the workflow.
+
+## How does embedding works?
+
+As mentioned, after creating embedding, each data point is represented as a vector in a n-dimensional space (embedding space). The dimensionality of this space can vary depending on the complexity of the data and the specific embedding technique used.
+
+Points that are close to each other in vector space are considered similar (or appear in similar contexts), and points that are far away are considered dissimilar. To quantify this closeness, we use distance as a metric which can be measured in the  following way - 
+
+1. **Euclidean Distance (L2)**: It calculates the straight-line distance between two points (vectors) in a multidimensional space.
+2. **Cosine Similarity**: It measures the cosine of the angle between two vectors, providing a normalized measure of similarity based on their direction.
+3. **Dot product**: It is calculated as the sum of the products of their corresponding components. To measure relatedness it considers both the magnitude and direction of the vectors.
+
+## How do you create and store vector embeddings for your data?
+
+1. **Creating embeddings**: Choose an embedding model, it can be a pre-trained model (open-source or commercial) or you can train a custom embedding model for your scenario. Then feed your preprocessed data into the chosen model to obtain embeddings.
+
+??? question "Popular choices for embedding models"
+    For text data, popular choices are OpenAI’s text-embedding models, Google Gemini text-embedding models, Cohere’s Embed models, and SentenceTransformers, etc.
+
+    For image data, popular choices are CLIP (Contrastive Language–Image Pretraining), Imagebind embeddings by meta (supports audio, video, and image), and Jina multi-modal embeddings, etc.
+
+2. **Storing vector embeddings**: This effectively requires **specialized databases** that can handle the complexity of vector data, as traditional databases often struggle with this task. Vector databases are designed specifically for storing and querying vector embeddings. They optimize for efficient nearest-neighbor searches and provide built-in indexing mechanisms.
+
+!!! tip "Why LanceDB"
+    LanceDB **automates** the entire process of creating and storing embeddings for your data. LanceDB allows you to define and use **embedding functions**, which can be **pre-trained models** or **custom models**. 
+    
+    This enables you to **generate** embeddings tailored to the nature of your data (e.g., text, images) and **store** both the **original data** and **embeddings** in a **structured schema** thus providing efficient querying capabilities for similarity searches.
+
+Let's quickly [get started](./index.md) and learn how to manage embeddings in LanceDB. 
+
+## Bonus: As a developer, what you can create using embeddings?
+
+As a developer, you can create a variety of innovative applications using vector embeddings. Check out the following - 
+
+<div class="grid cards" markdown>
+
+-   __Chatbots__
+
+    ---
+
+    Develop chatbots that utilize embeddings to retrieve relevant context and generate coherent, contextually aware responses to user queries.
+
+    [:octicons-arrow-right-24: Check out examples](../examples/python_examples/chatbot.md)
+
+-   __Recommendation Systems__
+
+    ---
+
+    Develop systems that recommend content (such as articles, movies, or products) based on the similarity of keywords and descriptions, enhancing user experience.
+
+    [:octicons-arrow-right-24: Check out examples](../examples/python_examples/recommendersystem.md)
+
+-   __Vector Search__
+
+    ---
+
+    Build powerful applications that harness the full potential of semantic search, enabling them to retrieve relevant data quickly and effectively. 
+
+    [:octicons-arrow-right-24: Check out examples](../examples/python_examples/vector_search.md)
+
+-   __RAG Applications__
+
+    ---
+
+    Combine the strengths of large language models (LLMs) with retrieval-based approaches to create more useful applications.
+
+    [:octicons-arrow-right-24: Check out examples](../examples/python_examples/rag.md)
+
+-   __Many more examples__
+
+    ---
+
+    Explore applied examples available as Colab notebooks or Python scripts to integrate into your applications.
+
+    [:octicons-arrow-right-24: More](../examples/examples_python.md)
+
+</div>
+
+
+
+
+
+
+
+

docs/src/examples/index.md

@@ -8,9 +8,15 @@ LanceDB provides language APIs, allowing you to embed a database in your languag
 * 👾 [JavaScript](examples_js.md) examples
 * 🦀 Rust examples (coming soon)
 
-## Applications powered by LanceDB
+## Python Applications powered by LanceDB
 
 | Project Name | Description |
 | --- | --- |
 | **Ultralytics Explorer 🚀**<br>[![Ultralytics](https://img.shields.io/badge/Ultralytics-Docs-green?labelColor=0f3bc4&style=flat-square&logo=https://cdn.prod.website-files.com/646dd1f1a3703e451ba81ecc/64994922cf2a6385a4bf4489_UltralyticsYOLO_mark_blue.svg&link=https://docs.ultralytics.com/datasets/explorer/)](https://docs.ultralytics.com/datasets/explorer/)<br>[![Open In Collab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/ultralytics/ultralytics/blob/main/docs/en/datasets/explorer/explorer.ipynb) |  - 🔍 **Explore CV Datasets**: Semantic search, SQL queries, vector similarity, natural language.<br>- 🖥️ **GUI & Python API**: Seamless dataset interaction.<br>- ⚡ **Efficient & Scalable**: Leverages LanceDB for large datasets.<br>- 📊 **Detailed Analysis**: Easily analyze data patterns.<br>- 🌐 **Browser GUI Demo**: Create embeddings, search images, run queries. |
 | **Website Chatbot🤖**<br>[![GitHub](https://img.shields.io/badge/github-%23121011.svg?style=for-the-badge&logo=github&logoColor=white)](https://github.com/lancedb/lancedb-vercel-chatbot)<br>[![Deploy with Vercel](https://vercel.com/button)](https://vercel.com/new/clone?repository-url=https%3A%2F%2Fgithub.com%2Flancedb%2Flancedb-vercel-chatbot&amp;env=OPENAI_API_KEY&amp;envDescription=OpenAI%20API%20Key%20for%20chat%20completion.&amp;project-name=lancedb-vercel-chatbot&amp;repository-name=lancedb-vercel-chatbot&amp;demo-title=LanceDB%20Chatbot%20Demo&amp;demo-description=Demo%20website%20chatbot%20with%20LanceDB.&amp;demo-url=https%3A%2F%2Flancedb.vercel.app&amp;demo-image=https%3A%2F%2Fi.imgur.com%2FazVJtvr.png) | - 🌐 **Chatbot from Sitemap/Docs**: Create a chatbot using site or document context.<br>- 🚀 **Embed LanceDB in Next.js**: Lightweight, on-prem storage.<br>- 🧠 **AI-Powered Context Retrieval**: Efficiently access relevant data.<br>- 🔧 **Serverless & Native JS**: Seamless integration with Next.js.<br>- ⚡ **One-Click Deploy on Vercel**: Quick and easy setup.. |
+
+## Nodejs Applications powered by LanceDB
+
+| Project Name | Description |
+| --- | --- |
+| **Langchain Writing Assistant✍️ **<br>[![Github](../assets/github.svg)](https://github.com/lancedb/vectordb-recipes/tree/main/applications/node/lanchain_writing_assistant) |  - **📂 Data Source Integration**:  Use your own data by specifying data source file, and the app instantly processes it to provide insights. <br>- **🧠 Intelligent Suggestions**:  Powered by LangChain.js and LanceDB, it improves writing productivity and accuracy.  <br>- **💡 Enhanced Writing Experience**: It delivers real-time contextual insights and factual suggestions while the user writes. |

docs/src/examples/python_examples/chatbot.md

@@ -36,6 +36,6 @@
 [aware_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/tutorials/chatbot_using_Llama2_&_lanceDB/main.ipynb
 [aware_ghost]: https://blog.lancedb.com/context-aware-chatbot-using-llama-2-lancedb-as-vector-database-4d771d95c755
 
-[csv_github]: https://github.com/lancedb/vectordb-recipes/blob/main/tutorials/Chat_with_csv_file
-[csv_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/tutorials/Chat_with_csv_file/main.ipynb
+[csv_github]: https://github.com/lancedb/vectordb-recipes/tree/main/examples/archived_examples/Chat_with_csv_file
+[csv_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/archived_examples/Chat_with_csv_file/main.ipynb
 [csv_ghost]: https://blog.lancedb.com/p/d8c71df4-e55f-479a-819e-cde13354a6a3/

docs/src/examples/python_examples/multimodal.md

@@ -12,7 +12,7 @@ LanceDB supports multimodal search by indexing and querying vector representatio
 |:----------------|:-----------------|:-----------|
 | **Multimodal CLIP: DiffusionDB 🌐💥**    | Multi-Modal Search with **CLIP** and **LanceDB** Using **DiffusionDB** Data for Combined Text and Image Understanding ! 🔓 | [![GitHub](../../assets/github.svg)][Clip_diffusionDB_github] <br>[![Open In Collab](../../assets/colab.svg)][Clip_diffusionDB_colab] <br>[![Python](../../assets/python.svg)][Clip_diffusionDB_python] <br>[![Ghost](../../assets/ghost.svg)][Clip_diffusionDB_ghost] |
 | **Multimodal CLIP: Youtube Videos 📹👀** | Search **Youtube videos** using Multimodal CLIP, finding relevant content with ease and accuracy! 🎯                                                                                                                                                                | [![Github](../../assets/github.svg)][Clip_youtube_github]                                                                                                    <br>[![Open In Collab](../../assets/colab.svg)][Clip_youtube_colab]                                                                                           <br> [![Python](../../assets/python.svg)][Clip_youtube_python]         <br>[![Ghost](../../assets/ghost.svg)][Clip_youtube_python] |
-| **Multimodal Image + Text Search 📸🔍**               | Find **relevant documents** and **images** with a single query using **LanceDB's** multimodal search capabilities, to seamlessly integrate text and visuals ! 🌉 | [![GitHub](../../assets/github.svg)](https://github.com/lancedb/vectordb-recipes/blob/main/examples/multimodal_search) <br>[![Open In Collab](../../assets/colab.svg)](https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/multimodal_search/main.ipynb) <br> [![Python](../../assets/python.svg)](https://github.com/lancedb/vectordb-recipes/blob/main/examples/multimodal_search/main.py)<br> [![Ghost](../../assets/ghost.svg)](https://blog.lancedb.com/multi-modal-ai-made-easy-with-lancedb-clip-5aaf8801c939/) |
+| **Multimodal Image + Text Search 📸🔍**               | Find **relevant documents** and **images** with a single query using **LanceDB's** multimodal search capabilities, to seamlessly integrate text and visuals ! 🌉 | [![GitHub](../../assets/github.svg)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/archived_examples/multimodal_search) <br>[![Open In Collab](../../assets/colab.svg)](https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/archived_examples/multimodal_search/main.ipynb) <br> [![Python](../../assets/python.svg)](https://github.com/lancedb/vectordb-recipes/blob/main/examples/multimodal_search/main.py)<br> [![Ghost](../../assets/ghost.svg)](https://blog.lancedb.com/multi-modal-ai-made-easy-with-lancedb-clip-5aaf8801c939/) |
 | **Cambrian-1: Vision-Centric Image Exploration 🔍👀** | Learn how **Cambrian-1** works, using an example of **Vision-Centric** exploration on images found through vector search ! Work on **Flickr-8k** dataset 🔎                        | [![Kaggle](https://img.shields.io/badge/Kaggle-035a7d?style=for-the-badge&logo=kaggle&logoColor=white)](https://www.kaggle.com/code/prasantdixit/cambrian-1-vision-centric-exploration-of-images/)<br> [![Ghost](../../assets/ghost.svg)](https://blog.lancedb.com/cambrian-1-vision-centric-exploration/)                                                                                                                                                                                                                   |
 
 

docs/src/examples/python_examples/rag.md

@@ -70,12 +70,12 @@ Build RAG (Retrieval-Augmented Generation) with  LanceDB, a powerful solution fo
 [flare_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/better-rag-FLAIR/main.ipynb
 [flare_ghost]: https://blog.lancedb.com/better-rag-with-active-retrieval-augmented-generation-flare-3b66646e2a9f/
 
-[query_github]: https://github.com/lancedb/vectordb-recipes/blob/main/examples/QueryExpansion&Reranker
-[query_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/QueryExpansion&Reranker/main.ipynb
+[query_github]: https://github.com/lancedb/vectordb-recipes/tree/main/examples/archived_examples/QueryExpansion%26Reranker
+[query_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/archived_examples/QueryExpansion&Reranker/main.ipynb
 
 
-[fusion_github]: https://github.com/lancedb/vectordb-recipes/blob/main/examples/RAG_Fusion
-[fusion_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/RAG_Fusion/main.ipynb
+[fusion_github]: https://github.com/lancedb/vectordb-recipes/tree/main/examples/archived_examples/RAG_Fusion
+[fusion_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/archived_examples/RAG_Fusion/main.ipynb
 
 [agentic_github]: https://github.com/lancedb/vectordb-recipes/blob/main/tutorials/Agentic_RAG
 [agentic_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/tutorials/Agentic_RAG/main.ipynb

docs/src/examples/python_examples/recommendersystem.md

@@ -19,8 +19,8 @@ Deliver personalized experiences with Recommender Systems. 🎁
 [movie_python]: https://github.com/lancedb/vectordb-recipes/blob/main/examples/movie-recommender/main.py
 
 
-[genre_github]: https://github.com/lancedb/vectordb-recipes/blob/main/examples/movie-recommendation-with-genres
-[genre_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/movie-recommendation-with-genres/movie_recommendation_with_doc2vec_and_lancedb.ipynb
+[genre_github]: https://github.com/lancedb/vectordb-recipes/tree/main/examples/archived_examples/movie-recommendation-with-genres
+[genre_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/archived_examples/movie-recommendation-with-genres/movie_recommendation_with_doc2vec_and_lancedb.ipynb
 [genre_ghost]: https://blog.lancedb.com/movie-recommendation-system-using-lancedb-and-doc2vec/
 
 [product_github]: https://github.com/lancedb/vectordb-recipes/blob/main/examples/product-recommender
@@ -33,5 +33,5 @@ Deliver personalized experiences with Recommender Systems. 🎁
 [arxiv_python]: https://github.com/lancedb/vectordb-recipes/blob/main/examples/arxiv-recommender/main.py
  
 
-[food_github]: https://github.com/lancedb/vectordb-recipes/blob/main/examples/Food_recommendation
-[food_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/Food_recommendation/main.ipynb
+[food_github]: https://github.com/lancedb/vectordb-recipes/tree/main/examples/archived_examples/Food_recommendation
+[food_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/archived_examples/Food_recommendation/main.ipynb

docs/src/examples/python_examples/vector_search.md

@@ -37,16 +37,16 @@ LanceDB implements vector search algorithms for efficient document retrieval and
 [NER_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/tutorials/NER-powered-Semantic-Search/NER_powered_Semantic_Search_with_LanceDB.ipynb
 [NER_ghost]: https://blog.lancedb.com/ner-powered-semantic-search-using-lancedb-51051dc3e493
 
-[audio_search_github]: https://github.com/lancedb/vectordb-recipes/blob/main/examples/audio_search
-[audio_search_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/audio_search/main.ipynb
-[audio_search_python]: https://github.com/lancedb/vectordb-recipes/blob/main/examples/audio_search/main.py
+[audio_search_github]: https://github.com/lancedb/vectordb-recipes/tree/main/examples/archived_examples/audio_search
+[audio_search_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/archived_examples/audio_search/main.ipynb
+[audio_search_python]: https://github.com/lancedb/vectordb-recipes/blob/main/examples/archived_examples/audio_search/main.py
 
-[mls_github]: https://github.com/lancedb/vectordb-recipes/blob/main/examples/multi-lingual-wiki-qa
-[mls_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/multi-lingual-wiki-qa/main.ipynb
-[mls_python]: https://github.com/lancedb/vectordb-recipes/blob/main/examples/multi-lingual-wiki-qa/main.py
+[mls_github]: https://github.com/lancedb/vectordb-recipes/tree/main/examples/archived_examples/multi-lingual-wiki-qa
+[mls_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/archived_examples/multi-lingual-wiki-qa/main.ipynb
+[mls_python]: https://github.com/lancedb/vectordb-recipes/blob/main/examples/archived_examples/multi-lingual-wiki-qa/main.py
 
-[fr_github]: https://github.com/lancedb/vectordb-recipes/blob/main/examples/facial_recognition
-[fr_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/facial_recognition/main.ipynb
+[fr_github]: https://github.com/lancedb/vectordb-recipes/tree/main/examples/archived_examples/facial_recognition
+[fr_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/archived_examples/facial_recognition/main.ipynb
 
 [sentiment_analysis_github]: https://github.com/lancedb/vectordb-recipes/blob/main/examples/Sentiment-Analysis-Analyse-Hotel-Reviews
 [sentiment_analysis_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/Sentiment-Analysis-Analyse-Hotel-Reviews/Sentiment_Analysis_using_LanceDB.ipynb
@@ -70,8 +70,8 @@ LanceDB implements vector search algorithms for efficient document retrieval and
 [openvino_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/Accelerate-Vector-Search-Applications-Using-OpenVINO/clip_text_image_search.ipynb
 [openvino_ghost]: https://blog.lancedb.com/accelerate-vector-search-applications-using-openvino-lancedb/
 
-[zsic_github]: https://github.com/lancedb/vectordb-recipes/blob/main/examples/zero-shot-image-classification
-[zsic_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/zero-shot-image-classification/main.ipynb
+[zsic_github]: https://github.com/lancedb/vectordb-recipes/tree/main/examples/archived_examples/zero-shot-image-classification
+[zsic_colab]: https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/archived_examples/zero-shot-image-classification/main.ipynb
 [zsic_ghost]: https://blog.lancedb.com/zero-shot-image-classification-with-vector-search/
 
 

docs/src/fts.md

@@ -1,21 +1,9 @@
-# Full-text search
+# Full-text search (Native FTS)
 
-LanceDB provides support for full-text search via Lance (before via [Tantivy](https://github.com/quickwit-oss/tantivy) (Python only)), allowing you to incorporate keyword-based search (based on BM25) in your retrieval solutions.
-
-Currently, the Lance full text search is missing some features that are in the Tantivy full text search. This includes phrase queries, re-ranking, and customizing the tokenizer. Thus, in Python, Tantivy is still the default way to do full text search and many of the instructions below apply just to Tantivy-based indices.
-
-
-## Installation (Only for Tantivy-based FTS)
+LanceDB provides support for full-text search via Lance, allowing you to incorporate keyword-based search (based on BM25) in your retrieval solutions.
 
 !!! note
-    No need to install the tantivy dependency if using native FTS
-
-To use full-text search, install the dependency [`tantivy-py`](https://github.com/quickwit-oss/tantivy-py):
-
-```sh
-# Say you want to use tantivy==0.20.1
-pip install tantivy==0.20.1
-```
+    The Python SDK uses tantivy-based FTS by default, need to pass `use_tantivy=False` to use native FTS.
 
 ## Example
 
@@ -39,7 +27,7 @@ Consider that we have a LanceDB table named `my_table`, whose string column `tex
 
     # passing `use_tantivy=False` to use lance FTS index
     # `use_tantivy=True` by default
-    table.create_fts_index("text")
+    table.create_fts_index("text", use_tantivy=False)
     table.search("puppy").limit(10).select(["text"]).to_list()
     # [{'text': 'Frodo was a happy puppy', '_score': 0.6931471824645996}]
     # ...
@@ -93,51 +81,40 @@ Consider that we have a LanceDB table named `my_table`, whose string column `tex
     ```
 
 It would search on all indexed columns by default, so it's useful when there are multiple indexed columns.
-For now, this is supported in tantivy way only.
 
-Passing `fts_columns="text"` if you want to specify the columns to search, but it's not available for Tantivy-based full text search.
+Passing `fts_columns="text"` if you want to specify the columns to search.
 
 !!! note
     LanceDB automatically searches on the existing FTS index if the input to the search is of type `str`. If you provide a vector as input, LanceDB will search the ANN index instead.
 
 ## Tokenization
-By default the text is tokenized by splitting on punctuation and whitespaces and then removing tokens that are longer than 40 chars. For more language specific tokenization then provide the argument tokenizer_name with the 2 letter language code followed by "_stem". So for english it would be "en_stem".
+By default the text is tokenized by splitting on punctuation and whitespaces, and would filter out words that are with length greater than 40, and lowercase all words.
 
-For now, only the Tantivy-based FTS index supports to specify the tokenizer, so it's only available in Python with `use_tantivy=True`.
+Stemming is useful for improving search results by reducing words to their root form, e.g. "running" to "run". LanceDB supports stemming for multiple languages, you can specify the tokenizer name to enable stemming by the pattern `tokenizer_name="{language_code}_stem"`, e.g. `en_stem` for English.
 
-=== "use_tantivy=True"
-
-    ```python
-    table.create_fts_index("text", use_tantivy=True, tokenizer_name="en_stem")
-    ```
-
-=== "use_tantivy=False"
-
-    [**Not supported yet**](https://github.com/lancedb/lance/issues/1195)
+For example, to enable stemming for English:
+```python
+table.create_fts_index("text", use_tantivy=True, tokenizer_name="en_stem")
+```
 
 the following [languages](https://docs.rs/tantivy/latest/tantivy/tokenizer/enum.Language.html) are currently supported.
 
-## Index multiple columns
+The tokenizer is customizable, you can specify how the tokenizer splits the text, and how it filters out words, etc.
 
-If you have multiple string columns to index, there's no need to combine them manually -- simply pass them all as a list to `create_fts_index`:
-
-=== "use_tantivy=True"
-
-    ```python
-    table.create_fts_index(["text1", "text2"])
-    ```
-
-=== "use_tantivy=False"
-
-    [**Not supported yet**](https://github.com/lancedb/lance/issues/1195)
-
-Note that the search API call does not change - you can search over all indexed columns at once.
+For example, for language with accents, you can specify the tokenizer to use `ascii_folding` to remove accents, e.g. 'é' to 'e':
+```python
+table.create_fts_index("text",
+                        use_tantivy=False,
+                        language="French",
+                        stem=True,
+                        ascii_folding=True)
+```
 
 ## Filtering
 
-Currently the LanceDB full text search feature supports *post-filtering*, meaning filters are
-applied on top of the full text search results. This can be invoked via the familiar
-`where` syntax:
+LanceDB full text search supports to filter the search results by a condition, both pre-filtering and post-filtering are supported.
+
+This can be invoked via the familiar `where` syntax:
 
 === "Python"
 
@@ -169,98 +146,17 @@ applied on top of the full text search results. This can be invoked via the fami
         .await?;
     ```
 
-## Sorting
-
-!!! warning "Warn"
-    Sorting is available for only Tantivy-based FTS
-
-You can pre-sort the documents by specifying `ordering_field_names` when
-creating the full-text search index. Once pre-sorted, you can then specify
-`ordering_field_name` while searching to return results sorted by the given
-field. For example,
-
-```python
-table.create_fts_index(["text_field"], use_tantivy=True, ordering_field_names=["sort_by_field"])
-
-(table.search("terms", ordering_field_name="sort_by_field")
- .limit(20)
- .to_list())
-```
-
-!!! note
-    If you wish to specify an ordering field at query time, you must also
-    have specified it during indexing time. Otherwise at query time, an
-    error will be raised that looks like `ValueError: The field does not exist: xxx`
-
-!!! note
-    The fields to sort on must be of typed unsigned integer, or else you will see
-    an error during indexing that looks like
-    `TypeError: argument 'value': 'float' object cannot be interpreted as an integer`.
-
-!!! note
-    You can specify multiple fields for ordering at indexing time.
-    But at query time only one ordering field is supported.
-
-
 ## Phrase queries vs. terms queries
 
 !!! warning "Warn"
-    Lance-based FTS doesn't support queries combining by boolean operators `OR`, `AND`.
+    Lance-based FTS doesn't support queries using boolean operators `OR`, `AND`.
 
 For full-text search you can specify either a **phrase** query like `"the old man and the sea"`,
-or a **terms** search query like `"(Old AND Man) AND Sea"`. For more details on the terms
+or a **terms** search query like `old man sea`. For more details on the terms
 query syntax, see Tantivy's [query parser rules](https://docs.rs/tantivy/latest/tantivy/query/struct.QueryParser.html).
 
-!!! tip "Note"
-    The query parser will raise an exception on queries that are ambiguous. For example, in the query `they could have been dogs OR cats`, `OR` is capitalized so it's considered a keyword query operator. But it's ambiguous how the left part should be treated. So if you submit this search query as is, you'll get `Syntax Error: they could have been dogs OR cats`.
-
-    ```py
-    # This raises a syntax error
-    table.search("they could have been dogs OR cats")
-    ```
-
-    On the other hand, lowercasing `OR` to `or` will work, because there are no capitalized logical operators and
-    the query is treated as a phrase query.
-
-    ```py
-    # This works!
-    table.search("they could have been dogs or cats")
-    ```
-
-It can be cumbersome to have to remember what will cause a syntax error depending on the type of
-query you want to perform. To make this simpler, when you want to perform a phrase query, you can
-enforce it in one of two ways:
-
-1. Place the double-quoted query inside single quotes. For example, `table.search('"they could have been dogs OR cats"')` is treated as
-a phrase query.
-1. Explicitly declare the `phrase_query()` method. This is useful when you have a phrase query that
-itself contains double quotes. For example, `table.search('the cats OR dogs were not really "pets" at all').phrase_query()`
-is treated as a phrase query.
-
-In general, a query that's declared as a phrase query will be wrapped in double quotes during parsing, with nested
-double quotes replaced by single quotes.
-
-
-## Configurations (Only for Tantivy-based FTS)
-
-By default, LanceDB configures a 1GB heap size limit for creating the index. You can
-reduce this if running on a smaller node, or increase this for faster performance while
-indexing a larger corpus.
-
+To search for a phrase, the index must be created with `with_position=True`:
 ```python
-# configure a 512MB heap size
-heap = 1024 * 1024 * 512
-table.create_fts_index(["text1", "text2"], writer_heap_size=heap, replace=True)
+table.create_fts_index("text", use_tantivy=False, with_position=True)
 ```
-
-## Current limitations
-
-For that Tantivy-based FTS:
-
-1. Currently we do not yet support incremental writes.
-   If you add data after FTS index creation, it won't be reflected
-   in search results until you do a full reindex.
-
-2. We currently only support local filesystem paths for the FTS index.
-   This is a tantivy limitation. We've implemented an object store plugin
-   but there's no way in tantivy-py to specify to use it.
+This will allow you to search for phrases, but it will also significantly increase the index size and indexing time.

docs/src/fts_tantivy.md

@@ -0,0 +1,162 @@
+# Full-text search (Tantivy-based FTS)
+
+LanceDB also provides support for full-text search via [Tantivy](https://github.com/quickwit-oss/tantivy), allowing you to incorporate keyword-based search (based on BM25) in your retrieval solutions.
+
+The tantivy-based FTS is only available in Python and does not support building indexes on object storage or incremental indexing. If you need these features, try native FTS [native FTS](fts.md).
+
+## Installation
+
+To use full-text search, install the dependency [`tantivy-py`](https://github.com/quickwit-oss/tantivy-py):
+
+```sh
+# Say you want to use tantivy==0.20.1
+pip install tantivy==0.20.1
+```
+
+## Example
+
+Consider that we have a LanceDB table named `my_table`, whose string column `content` we want to index and query via keyword search, the FTS index must be created before you can search via keywords.
+
+```python
+import lancedb
+
+uri = "data/sample-lancedb"
+db = lancedb.connect(uri)
+
+table = db.create_table(
+    "my_table",
+    data=[
+        {"id": 1, "vector": [3.1, 4.1], "title": "happy puppy", "content": "Frodo was a happy puppy", "meta": "foo"},
+        {"id": 2, "vector": [5.9, 26.5], "title": "playing kittens", "content": "There are several kittens playing around the puppy", "meta": "bar"},
+    ],
+)
+
+# passing `use_tantivy=False` to use lance FTS index
+# `use_tantivy=True` by default
+table.create_fts_index("content", use_tantivy=True)
+table.search("puppy").limit(10).select(["content"]).to_list()
+# [{'text': 'Frodo was a happy puppy', '_score': 0.6931471824645996}]
+# ...
+```
+
+It would search on all indexed columns by default, so it's useful when there are multiple indexed columns.
+
+!!! note
+    LanceDB automatically searches on the existing FTS index if the input to the search is of type `str`. If you provide a vector as input, LanceDB will search the ANN index instead.
+
+## Tokenization
+By default the text is tokenized by splitting on punctuation and whitespaces and then removing tokens that are longer than 40 chars. For more language specific tokenization then provide the argument tokenizer_name with the 2 letter language code followed by "_stem". So for english it would be "en_stem".
+
+```python
+table.create_fts_index("content", use_tantivy=True, tokenizer_name="en_stem", replace=True)
+```
+
+the following [languages](https://docs.rs/tantivy/latest/tantivy/tokenizer/enum.Language.html) are currently supported.
+
+## Index multiple columns
+
+If you have multiple string columns to index, there's no need to combine them manually -- simply pass them all as a list to `create_fts_index`:
+
+```python
+table.create_fts_index(["title", "content"], use_tantivy=True, replace=True)
+```
+
+Note that the search API call does not change - you can search over all indexed columns at once.
+
+## Filtering
+
+Currently the LanceDB full text search feature supports *post-filtering*, meaning filters are
+applied on top of the full text search results (see [native FTS](fts.md) if you need pre-filtering). This can be invoked via the familiar
+`where` syntax:
+
+```python
+table.search("puppy").limit(10).where("meta='foo'").to_list()
+```
+
+## Sorting
+
+You can pre-sort the documents by specifying `ordering_field_names` when
+creating the full-text search index. Once pre-sorted, you can then specify
+`ordering_field_name` while searching to return results sorted by the given
+field. For example,
+
+```python
+table.create_fts_index(["content"], use_tantivy=True, ordering_field_names=["id"], replace=True)
+
+(table.search("puppy", ordering_field_name="id")
+ .limit(20)
+ .to_list())
+```
+
+!!! note
+    If you wish to specify an ordering field at query time, you must also
+    have specified it during indexing time. Otherwise at query time, an
+    error will be raised that looks like `ValueError: The field does not exist: xxx`
+
+!!! note
+    The fields to sort on must be of typed unsigned integer, or else you will see
+    an error during indexing that looks like
+    `TypeError: argument 'value': 'float' object cannot be interpreted as an integer`.
+
+!!! note
+    You can specify multiple fields for ordering at indexing time.
+    But at query time only one ordering field is supported.
+
+
+## Phrase queries vs. terms queries
+
+For full-text search you can specify either a **phrase** query like `"the old man and the sea"`,
+or a **terms** search query like `"(Old AND Man) AND Sea"`. For more details on the terms
+query syntax, see Tantivy's [query parser rules](https://docs.rs/tantivy/latest/tantivy/query/struct.QueryParser.html).
+
+!!! tip "Note"
+    The query parser will raise an exception on queries that are ambiguous. For example, in the query `they could have been dogs OR cats`, `OR` is capitalized so it's considered a keyword query operator. But it's ambiguous how the left part should be treated. So if you submit this search query as is, you'll get `Syntax Error: they could have been dogs OR cats`.
+
+    ```py
+    # This raises a syntax error
+    table.search("they could have been dogs OR cats")
+    ```
+
+    On the other hand, lowercasing `OR` to `or` will work, because there are no capitalized logical operators and
+    the query is treated as a phrase query.
+
+    ```py
+    # This works!
+    table.search("they could have been dogs or cats")
+    ```
+
+It can be cumbersome to have to remember what will cause a syntax error depending on the type of
+query you want to perform. To make this simpler, when you want to perform a phrase query, you can
+enforce it in one of two ways:
+
+1. Place the double-quoted query inside single quotes. For example, `table.search('"they could have been dogs OR cats"')` is treated as
+a phrase query.
+1. Explicitly declare the `phrase_query()` method. This is useful when you have a phrase query that
+itself contains double quotes. For example, `table.search('the cats OR dogs were not really "pets" at all').phrase_query()`
+is treated as a phrase query.
+
+In general, a query that's declared as a phrase query will be wrapped in double quotes during parsing, with nested
+double quotes replaced by single quotes.
+
+
+## Configurations
+
+By default, LanceDB configures a 1GB heap size limit for creating the index. You can
+reduce this if running on a smaller node, or increase this for faster performance while
+indexing a larger corpus.
+
+```python
+# configure a 512MB heap size
+heap = 1024 * 1024 * 512
+table.create_fts_index(["title", "content"], use_tantivy=True, writer_heap_size=heap, replace=True)
+```
+
+## Current limitations
+
+1. Currently we do not yet support incremental writes.
+   If you add data after FTS index creation, it won't be reflected
+   in search results until you do a full reindex.
+
+2. We currently only support local filesystem paths for the FTS index.
+   This is a tantivy limitation. We've implemented an object store plugin
+   but there's no way in tantivy-py to specify to use it.

docs/src/guides/storage.md

@@ -498,7 +498,7 @@ This can also be done with the ``AWS_ENDPOINT`` and ``AWS_DEFAULT_REGION`` envir
 
 #### S3 Express
 
-LanceDB supports [S3 Express One Zone](https://aws.amazon.com/s3/storage-classes/express-one-zone/) endpoints, but requires additional configuration. Also, S3 Express endpoints only support connecting from an EC2 instance within the same region.
+LanceDB supports [S3 Express One Zone](https://aws.amazon.com/s3/storage-classes/express-one-zone/) endpoints, but requires additional infrastructure configuration for the compute service, such as EC2 or Lambda. Please refer to [Networking requirements for S3 Express One Zone](https://docs.aws.amazon.com/AmazonS3/latest/userguide/s3-express-networking.html).
 
 To configure LanceDB to use an S3 Express endpoint, you must set the storage option `s3_express`. The bucket name in your table URI should **include the suffix**.
 

docs/src/index.md

@@ -49,7 +49,8 @@ The following pages go deeper into the internal of LanceDB and how to use it.
 * [Working with tables](guides/tables.md): Learn how to work with tables and their associated functions
 * [Indexing](ann_indexes.md): Understand how to create indexes
 * [Vector search](search.md): Learn how to perform vector similarity search
-* [Full-text search](fts.md): Learn how to perform full-text search
+* [Full-text search (native)](fts.md): Learn how to perform full-text search
+* [Full-text search (tantivy-based)](fts_tantivy.md): Learn how to perform full-text search using Tantivy
 * [Managing embeddings](embeddings/index.md): Managing embeddings and the embedding functions API in LanceDB
 * [Ecosystem Integrations](integrations/index.md): Integrate LanceDB with other tools in the data ecosystem
 * [Python API Reference](python/python.md): Python OSS and Cloud API references

docs/src/integrations/langchain.md

@@ -1,5 +1,10 @@
-# Langchain
-![Illustration](../assets/langchain.png)
+**LangChain** is a framework designed for building applications with large language models (LLMs) by chaining together various components. It supports a range of functionalities including memory, agents, and chat models, enabling developers to create context-aware applications.
+
+![Illustration](https://raw.githubusercontent.com/lancedb/assets/refs/heads/main/docs/assets/integration/langchain_rag.png)
+
+LangChain streamlines these stages (in figure above) by providing pre-built components and tools for integration, memory management, and deployment, allowing developers to focus on application logic rather than underlying complexities.
+
+Integration of **Langchain** with **LanceDB** enables applications to retrieve the most relevant data by comparing query vectors against stored vectors, facilitating effective information retrieval. It results in better and context aware replies and actions by the LLMs.
 
 ## Quick Start
 You can load your document data using langchain's loaders, for this example we are using `TextLoader` and `OpenAIEmbeddings` as the embedding model. Checkout Complete example here - [LangChain demo](../notebooks/langchain_example.ipynb)
@@ -26,20 +31,28 @@ print(docs[0].page_content)
 
 ## Documentation
 In the above example `LanceDB` vector store class object is created using `from_documents()` method  which is a `classmethod` and returns the initialized class object. 
+
 You can also use `LanceDB.from_texts(texts: List[str],embedding: Embeddings)` class method.  
 
-The exhaustive list of parameters for `LanceDB` vector store are :  
-- `connection`: (Optional) `lancedb.db.LanceDBConnection` connection object to use.  If not provided, a new connection will be created.  
-- `embedding`: Langchain embedding model.  
-- `vector_key`: (Optional) Column name to use for vector's in the table. Defaults to `'vector'`.   
-- `id_key`: (Optional) Column name to use for id's in the table. Defaults to `'id'`.  
-- `text_key`: (Optional) Column name to use for text in the table. Defaults to `'text'`.  
-- `table_name`: (Optional) Name of your table in the database. Defaults to `'vectorstore'`.  
-- `api_key`: (Optional) API key to use for LanceDB cloud database. Defaults to `None`.  
-- `region`: (Optional) Region to use for LanceDB cloud database. Only for LanceDB Cloud, defaults to `None`.  
-- `mode`: (Optional) Mode to use for adding data to the table. Defaults to `'overwrite'`.  
-- `reranker`: (Optional) The reranker to use for LanceDB.
-- `relevance_score_fn`: (Optional[Callable[[float], float]]) Langchain relevance score function to be used. Defaults to `None`. 
+The exhaustive list of parameters for `LanceDB` vector store are : 
+
+|Name|type|Purpose|default|
+|:----|:----|:----|:----|
+|`connection`| (Optional) `Any` |`lancedb.db.LanceDBConnection` connection object to use.  If not provided, a new connection will be created.|`None`|
+|`embedding`| (Optional) `Embeddings` | Langchain embedding model.|Provided by user.|
+|`uri`| (Optional) `str` |It specifies the directory location of **LanceDB database** and establishes a connection that can be used to interact with the database. |`/tmp/lancedb`|
+|`vector_key` |(Optional) `str`| Column name to use for vector's in the table.|`'vector'`|
+|`id_key` |(Optional) `str`| Column name to use for id's in the table.|`'id'`|
+|`text_key` |(Optional) `str` |Column name to use for text in the table.|`'text'`|
+|`table_name` |(Optional) `str`| Name of your table in the database.|`'vectorstore'`|
+|`api_key` |(Optional `str`) |API key to use for LanceDB cloud database.|`None`|
+|`region` |(Optional) `str`| Region to use for LanceDB cloud database.|Only for LanceDB Cloud : `None`.|
+|`mode` |(Optional) `str` |Mode to use for adding data to the table. Valid values are "append" and "overwrite".|`'overwrite'`|
+|`table`| (Optional) `Any`|You can connect to an existing table of LanceDB, created outside of langchain, and utilize it.|`None`|
+|`distance`|(Optional) `str`|The choice of distance metric used to calculate the similarity between vectors.|`'l2'`|
+|`reranker` |(Optional) `Any`|The reranker to use for LanceDB.|`None`|
+|`relevance_score_fn` |(Optional) `Callable[[float], float]` | Langchain relevance score function to be used.|`None`|
+|`limit`|`int`|Set the maximum number of results to return.|`DEFAULT_K` (it is 4)|
 
 ```python
 db_url = "db://lang_test" # url of db you created
@@ -51,19 +64,24 @@ vector_store = LanceDB(
     api_key=api_key, #(dont include for local API)
     region=region, #(dont include for local API)
     embedding=embeddings,
-    table_name='langchain_test' #Optional
+    table_name='langchain_test' # Optional
     )
 ```
 
 ### Methods 
 
 ##### add_texts()
-- `texts`: `Iterable` of strings to add to the vectorstore.
-- `metadatas`: Optional `list[dict()]` of metadatas associated with the texts.
-- `ids`: Optional `list` of ids to associate with the texts. 
-- `kwargs`: `Any`
 
-This method adds texts and stores respective embeddings automatically.
+This method turn texts into embedding and add it to the database.
+
+|Name|Purpose|defaults|
+|:---|:---|:---|
+|`texts`|`Iterable` of strings to add to the vectorstore.|Provided by user|
+|`metadatas`|Optional `list[dict()]` of metadatas associated with the texts.|`None`|
+|`ids`|Optional `list` of ids to associate with the texts.|`None`|
+|`kwargs`| Other keyworded arguments provided by the user. |-|
+
+It returns list of ids of the added texts.
 
 ```python
 vector_store.add_texts(texts = ['test_123'], metadatas =[{'source' :'wiki'}]) 
@@ -78,14 +96,25 @@ pd_df.to_csv("docsearch.csv", index=False)
 # you can also create a new vector store object using an older connection object:
 vector_store = LanceDB(connection=tbl, embedding=embeddings)
 ```
-##### create_index() 
-- `col_name`: `Optional[str] = None`
-- `vector_col`: `Optional[str] = None`
-- `num_partitions`: `Optional[int] = 256`
-- `num_sub_vectors`: `Optional[int] = 96`
-- `index_cache_size`: `Optional[int] = None`
 
-This method creates an index for the vector store. For index creation make sure your table has enough data in it. An ANN index is ususally not needed for datasets ~100K vectors. For large-scale (>1M) or higher dimension vectors, it is beneficial to create an ANN index.
+------
+
+
+##### create_index() 
+
+This method creates a scalar(for non-vector cols) or a vector index on a table.
+
+|Name|type|Purpose|defaults|
+|:---|:---|:---|:---|
+|`vector_col`|`Optional[str]`| Provide if you want to create index on a vector column. |`None`|
+|`col_name`|`Optional[str]`| Provide if you want to create index on a non-vector column. |`None`|
+|`metric`|`Optional[str]` |Provide the metric to use for vector index. choice of metrics: 'L2', 'dot', 'cosine'. |`L2`|
+|`num_partitions`|`Optional[int]`|Number of partitions to use for the index.|`256`|
+|`num_sub_vectors`|`Optional[int]` |Number of sub-vectors to use for the index.|`96`|
+|`index_cache_size`|`Optional[int]` |Size of the index cache.|`None`|
+|`name`|`Optional[str]` |Name of the table to create index on.|`None`|
+
+For index creation make sure your table has enough data in it. An ANN index is ususally not needed for datasets ~100K vectors. For large-scale (>1M) or higher dimension vectors, it is beneficial to create an ANN index.
 
 ```python
 # for creating vector index
@@ -96,42 +125,63 @@ vector_store.create_index(col_name='text')
 
 ```
 
-##### similarity_search()
-- `query`: `str`
-- `k`: `Optional[int] = None`
-- `filter`: `Optional[Dict[str, str]] = None`
-- `fts`: `Optional[bool] = False`
-- `name`: `Optional[str] = None`
-- `kwargs`: `Any`
+------
 
-Return documents most similar to the query without relevance scores
+##### similarity_search()
+
+This method performs similarity search based on **text query**.
+
+| Name    | Type                 | Purpose | Default |
+|---------|----------------------|---------|---------|
+| `query` | `str`                |  A `str` representing the text query that you want to search for in the vector store.         | N/A     |
+| `k`         | `Optional[int]`           | It specifies the number of documents to return.        | `None`    |
+| `filter`    | `Optional[Dict[str, str]]`| It is used to filter the search results by specific metadata criteria.        | `None`    |
+| `fts`   | `Optional[bool]`     |   It indicates whether to perform a full-text search (FTS).      | `False`   |
+| `name`      | `Optional[str]`           | It is used for specifying the name of the table to query. If not provided, it uses the default table set during the initialization of the LanceDB instance.        | `None`    |
+| `kwargs`    | `Any`                     | Other keyworded arguments provided by the user.        | N/A     |
+
+Return documents most similar to the query **without relevance scores**.
 
 ```python
 docs = docsearch.similarity_search(query)
 print(docs[0].page_content)
 ```
 
-##### similarity_search_by_vector()
-- `embedding`: `List[float]`
-- `k`: `Optional[int] = None`
-- `filter`: `Optional[Dict[str, str]] = None`
-- `name`: `Optional[str] = None`
-- `kwargs`: `Any`
+------
 
-Returns documents most similar to the query vector.
+##### similarity_search_by_vector()
+
+The method returns documents that are most similar to the specified **embedding (query) vector**. 
+
+| Name        | Type                      | Purpose | Default |
+|-------------|---------------------------|---------|---------|
+| `embedding` | `List[float]`             | The embedding vector you want to use to search for similar documents in the vector store.         | N/A     |
+| `k`         | `Optional[int]`           | It specifies the number of documents to return.        | `None`    |
+| `filter`    | `Optional[Dict[str, str]]`| It is used to filter the search results by specific metadata criteria.        | `None`    |
+| `name`      | `Optional[str]`           | It is used for specifying the name of the table to query. If not provided, it uses the default table set during the initialization of the LanceDB instance.        | `None`    |
+| `kwargs`    | `Any`                     | Other keyworded arguments provided by the user.        | N/A     |
+
+**It does not provide relevance scores.**
 
 ```python
 docs = docsearch.similarity_search_by_vector(query)
 print(docs[0].page_content)
 ```
 
-##### similarity_search_with_score()
-- `query`: `str`
-- `k`: `Optional[int] = None`
-- `filter`: `Optional[Dict[str, str]] = None`
-- `kwargs`: `Any`
+------
 
-Returns documents most similar to the query string with relevance scores, gets called by base class's `similarity_search_with_relevance_scores` which selects relevance score based on our `_select_relevance_score_fn`.
+##### similarity_search_with_score()
+
+Returns documents most similar to the **query string** along with their relevance scores.
+
+| Name     | Type                      | Purpose | Default |
+|----------|---------------------------|---------|---------|
+| `query`  | `str`                     |A `str` representing the text query you want to search for in the vector store. This query will be converted into an embedding using the specified embedding function.         | N/A     |
+| `k`      | `Optional[int]`           | It specifies the number of documents to return.  | `None`    |
+| `filter` | `Optional[Dict[str, str]]`|  It is used to filter the search results by specific metadata criteria. This allows you to narrow down the search results based on certain metadata attributes associated with the documents.       | `None`    |
+| `kwargs` | `Any`                     |  Other keyworded arguments provided by the user.       | N/A     |
+
+It gets called by base class's `similarity_search_with_relevance_scores` which selects relevance score based on our `_select_relevance_score_fn`.
 
 ```python
 docs = docsearch.similarity_search_with_relevance_scores(query)
@@ -139,15 +189,21 @@ print("relevance score - ", docs[0][1])
 print("text- ", docs[0][0].page_content[:1000])
 ```
 
-##### similarity_search_by_vector_with_relevance_scores()
-- `embedding`: `List[float]`
-- `k`: `Optional[int] = None`
-- `filter`: `Optional[Dict[str, str]] = None`
-- `name`: `Optional[str] = None`
-- `kwargs`: `Any`
+------
 
-Return documents most similar to the query vector with relevance scores.
-Relevance score 
+##### similarity_search_by_vector_with_relevance_scores()
+
+Similarity search using **query vector**.
+
+| Name        | Type                      | Purpose | Default |
+|-------------|---------------------------|---------|---------|
+| `embedding` | `List[float]`             | The embedding vector you want to use to search for similar documents in the vector store.        | N/A     |
+| `k`         | `Optional[int]`           |   It specifies the number of documents to return.       | `None`    |
+| `filter`    | `Optional[Dict[str, str]]`|  It is used to filter the search results by specific metadata criteria.       | `None`    |
+| `name`      | `Optional[str]`           |   It is used for specifying the name of the table to query.       | `None`    |
+| `kwargs`    | `Any`                     |   Other keyworded arguments provided by the user.      | N/A     |
+
+The method returns documents most similar to the specified embedding (query) vector, along with their relevance scores.
 
 ```python
 docs = docsearch.similarity_search_by_vector_with_relevance_scores(query_embedding)
@@ -155,20 +211,22 @@ print("relevance score - ", docs[0][1])
 print("text- ", docs[0][0].page_content[:1000])
 ```
 
-##### max_marginal_relevance_search()
-- `query`: `str`
-- `k`: `Optional[int] = None`
-- `fetch_k` : Number of Documents to fetch to pass to MMR algorithm, `Optional[int] = None`
-- `lambda_mult`: Number between 0 and 1 that determines the degree
-                        of diversity among the results with 0 corresponding
-                        to maximum diversity and 1 to minimum diversity.
-                        Defaults to 0.5. `float = 0.5`
-- `filter`: `Optional[Dict[str, str]] = None`
-- `kwargs`: `Any`
+------
 
-Returns docs selected using the maximal marginal relevance(MMR).
+##### max_marginal_relevance_search()
+
+This method returns docs selected using the maximal marginal relevance(MMR).
 Maximal marginal relevance optimizes for similarity to query AND diversity among selected documents.
 
+| Name | Type | Purpose | Default |
+|---------------|-----------------|-----------|---------|
+| `query`       | `str` | Text to look up documents similar to. | N/A     |
+| `k`   | `Optional[int]` | Number of Documents to return.| `4`       |
+| `fetch_k`| `Optional[int]`| Number of Documents to fetch to pass to MMR algorithm.| `None`    |
+| `lambda_mult` | `float`                   | Number between 0 and 1 that determines the degree of diversity among the results with 0 corresponding to maximum diversity and 1 to minimum diversity. | `0.5`     |
+| `filter`| `Optional[Dict[str, str]]`| Filter by metadata. | `None`    |
+|`kwargs`| Other keyworded arguments provided by the user. |-|
+
 Similarly, `max_marginal_relevance_search_by_vector()` function returns docs most similar to the embedding passed to the function using MMR. instead of a string query you need to pass the embedding to be searched for. 
 
 ```python
@@ -186,12 +244,19 @@ result_texts = [doc.page_content for doc in result]
 print(result_texts)
 ```
 
-##### add_images()
-- `uris` : File path to the image. `List[str]`.
-- `metadatas` : Optional list of metadatas. `(Optional[List[dict]], optional)`
-- `ids` : Optional list of IDs. `(Optional[List[str]], optional)`
+------
 
-Adds images by automatically creating their embeddings and adds them to the vectorstore.
+##### add_images()
+
+This method ddds images by automatically creating their embeddings and adds them to the vectorstore.
+
+| Name       | Type                          | Purpose                        | Default |
+|------------|-------------------------------|--------------------------------|---------|
+| `uris`     | `List[str]`                   | File path to the image         | N/A     |
+| `metadatas`| `Optional[List[dict]]`        | Optional list of metadatas     | `None`    |
+| `ids`      | `Optional[List[str]]`         | Optional list of IDs           | `None`    |
+
+It returns list of IDs of the added images.
 
 ```python
 vec_store.add_images(uris=image_uris) 

docs/src/integrations/phidata.md

@@ -0,0 +1,383 @@
+**phidata** is a framework for building **AI Assistants** with long-term memory, contextual knowledge, and the ability to take actions using function calling. It helps turn general-purpose LLMs into specialized assistants tailored to your use case by extending its capabilities using **memory**, **knowledge**, and **tools**. 
+
+- **Memory**: Stores chat history in a **database** and enables LLMs to have long-term conversations.
+- **Knowledge**: Stores information in a **vector database** and provides LLMs with business context. (Here we will use LanceDB)
+- **Tools**: Enable LLMs to take actions like pulling data from an **API**, **sending emails** or **querying a database**, etc.
+
+![example](https://raw.githubusercontent.com/lancedb/assets/refs/heads/main/docs/assets/integration/phidata_assistant.png)
+
+Memory & knowledge make LLMs smarter while tools make them autonomous.
+
+LanceDB is a vector database and its integration into phidata makes it easy for us to provide a **knowledge base** to LLMs. It enables us to store information as [embeddings](../embeddings/understanding_embeddings.md) and search for the **results** similar to ours using **query**. 
+
+??? Question "What is Knowledge Base?"
+    Knowledge Base is a database of information that the Assistant can search to improve its responses. This information is stored in a vector database and provides LLMs with business context, which makes them respond in a context-aware manner.
+
+    While any type of storage can act as a knowledge base, vector databases offer the best solution for retrieving relevant results from dense information quickly.
+
+Let's see how using LanceDB inside phidata helps in making LLM more useful:
+
+## Prerequisites: install and import necessary dependencies
+
+**Create a virtual environment**
+
+1. install virtualenv package
+    ```python
+    pip install virtualenv
+    ```
+2. Create a directory for your project and go to the directory and create a virtual environment inside it.
+    ```python
+    mkdir phi
+    ```
+    ```python
+    cd phi
+    ```
+    ```python
+    python -m venv phidata_
+    ```
+
+**Activating virtual environment**
+
+1. from inside the project directory, run the following command to activate the virtual environment.
+    ```python
+    phidata_/Scripts/activate
+    ```
+
+**Install the following packages in the virtual environment**
+```python
+pip install lancedb phidata youtube_transcript_api openai ollama numpy pandas
+```
+
+**Create python files and import necessary libraries**
+
+You need to create two files - `transcript.py` and `ollama_assistant.py` or `openai_assistant.py`
+
+=== "openai_assistant.py"
+
+    ```python
+    import os, openai
+    from rich.prompt import Prompt
+    from phi.assistant import Assistant
+    from phi.knowledge.text import TextKnowledgeBase
+    from phi.vectordb.lancedb import LanceDb
+    from phi.llm.openai import OpenAIChat
+    from phi.embedder.openai import OpenAIEmbedder
+    from transcript import extract_transcript
+
+    if "OPENAI_API_KEY" not in os.environ:
+    # OR set the key here as a variable
+        openai.api_key = "sk-..."
+
+    # The code below creates a file "transcript.txt" in the directory, the txt file will be used below
+    youtube_url = "https://www.youtube.com/watch?v=Xs33-Gzl8Mo" 
+    segment_duration = 20
+    transcript_text,dict_transcript = extract_transcript(youtube_url,segment_duration)
+    ```
+
+=== "ollama_assistant.py"
+
+    ```python
+    from rich.prompt import Prompt
+    from phi.assistant import Assistant
+    from phi.knowledge.text import TextKnowledgeBase
+    from phi.vectordb.lancedb import LanceDb
+    from phi.llm.ollama import Ollama
+    from phi.embedder.ollama import OllamaEmbedder
+    from transcript import extract_transcript
+
+    # The code below creates a file "transcript.txt" in the directory, the txt file will be used below
+    youtube_url = "https://www.youtube.com/watch?v=Xs33-Gzl8Mo"
+    segment_duration = 20
+    transcript_text,dict_transcript = extract_transcript(youtube_url,segment_duration)
+    ```
+
+=== "transcript.py"
+
+    ``` python
+    from youtube_transcript_api import YouTubeTranscriptApi
+    import re
+
+    def smodify(seconds):
+        hours, remainder = divmod(seconds, 3600)
+        minutes, seconds = divmod(remainder, 60)
+        return f"{int(hours):02}:{int(minutes):02}:{int(seconds):02}"
+        
+    def extract_transcript(youtube_url,segment_duration):
+        # Extract video ID from the URL
+        video_id = re.search(r'(?<=v=)[\w-]+', youtube_url)
+        if not video_id:
+            video_id = re.search(r'(?<=be/)[\w-]+', youtube_url)
+        if not video_id:
+            return None
+
+        video_id = video_id.group(0)
+
+        # Attempt to fetch the transcript
+        try:
+            # Try to get the official transcript
+            transcript = YouTubeTranscriptApi.get_transcript(video_id, languages=['en'])
+        except Exception:
+            # If no official transcript is found, try to get auto-generated transcript
+            try:
+                transcript_list = YouTubeTranscriptApi.list_transcripts(video_id)
+                for transcript in transcript_list:
+                    transcript = transcript.translate('en').fetch()
+            except Exception:
+                return None
+
+        # Format the transcript into 120s chunks
+        transcript_text,dict_transcript = format_transcript(transcript,segment_duration)
+        # Open the file in write mode, which creates it if it doesn't exist
+        with open("transcript.txt", "w",encoding="utf-8") as file:
+            file.write(transcript_text)
+        return transcript_text,dict_transcript
+
+    def format_transcript(transcript,segment_duration):
+        chunked_transcript = []
+        chunk_dict = []
+        current_chunk = []
+        current_time = 0
+        # 2 minutes in seconds
+        start_time_chunk = 0  # To track the start time of the current chunk
+
+        for segment in transcript:
+            start_time = segment['start']
+            end_time_x = start_time + segment['duration']
+            text = segment['text']
+            
+            # Add text to the current chunk
+            current_chunk.append(text)
+            
+            # Update the current time with the duration of the current segment
+            # The duration of the current segment is given by segment['start'] - start_time_chunk
+            if current_chunk:
+                current_time = start_time - start_time_chunk
+            
+            # If current chunk duration reaches or exceeds 2 minutes, save the chunk
+            if current_time >= segment_duration:
+                # Use the start time of the first segment in the current chunk as the timestamp
+                chunked_transcript.append(f"[{smodify(start_time_chunk)} to {smodify(end_time_x)}] " + " ".join(current_chunk))
+                current_chunk = re.sub(r'[\xa0\n]', lambda x: '' if x.group() == '\xa0' else ' ', "\n".join(current_chunk))
+                chunk_dict.append({"timestamp":f"[{smodify(start_time_chunk)} to {smodify(end_time_x)}]", "text": "".join(current_chunk)})
+                current_chunk = []  # Reset the chunk
+                start_time_chunk = start_time + segment['duration'] # Update the start time for the next chunk
+                current_time = 0  # Reset current time
+
+        # Add any remaining text in the last chunk
+        if current_chunk:
+            chunked_transcript.append(f"[{smodify(start_time_chunk)} to {smodify(end_time_x)}] " + " ".join(current_chunk))
+            current_chunk = re.sub(r'[\xa0\n]', lambda x: '' if x.group() == '\xa0' else ' ', "\n".join(current_chunk))
+            chunk_dict.append({"timestamp":f"[{smodify(start_time_chunk)} to {smodify(end_time_x)}]", "text": "".join(current_chunk)})
+
+        return "\n\n".join(chunked_transcript), chunk_dict
+    ```
+
+!!! warning
+    If creating Ollama assistant, download and install Ollama [from here](https://ollama.com/) and then run the Ollama instance in the background. Also, download the required models using `ollama pull <model-name>`. Check out the models [here](https://ollama.com/library) 
+
+
+**Run the following command to deactivate the virtual environment if needed**
+```python
+deactivate
+```
+
+## **Step 1** - Create a Knowledge Base for AI Assistant using LanceDB
+
+=== "openai_assistant.py"
+
+    ```python
+    # Create knowledge Base with OpenAIEmbedder in LanceDB
+    knowledge_base = TextKnowledgeBase(
+        path="transcript.txt",
+        vector_db=LanceDb(
+            embedder=OpenAIEmbedder(api_key = openai.api_key),
+            table_name="transcript_documents",
+            uri="./t3mp/.lancedb",
+        ),
+        num_documents = 10
+    )
+    ```
+
+=== "ollama_assistant.py"
+
+    ```python
+    # Create knowledge Base with OllamaEmbedder in LanceDB
+    knowledge_base = TextKnowledgeBase(
+        path="transcript.txt",
+        vector_db=LanceDb(
+            embedder=OllamaEmbedder(model="nomic-embed-text",dimensions=768),
+            table_name="transcript_documents",
+            uri="./t2mp/.lancedb",
+        ),
+        num_documents = 10
+    )
+    ```
+Check out the list of **embedders** supported by **phidata** and their usage [here](https://docs.phidata.com/embedder/introduction).
+
+Here we have used `TextKnowledgeBase`, which loads text/docx files to the knowledge base.
+
+Let's see all the parameters that `TextKnowledgeBase` takes -
+
+| Name| Type | Purpose | Default |
+|:----|:-----|:--------|:--------|
+|`path`|`Union[str, Path]`| Path to text file(s). It can point to a single text file or a directory of text files.| provided by user |
+|`formats`|`List[str]`| File formats accepted by this knowledge base. |`[".txt"]`|
+|`vector_db`|`VectorDb`| Vector Database for the Knowledge Base. phidata provides a wrapper around many vector DBs, you can import it like this - `from phi.vectordb.lancedb import LanceDb` | provided by user |
+|`num_documents`|`int`| Number of results (documents/vectors) that vector search should return. |`5`|
+|`reader`|`TextReader`| phidata provides many types of reader objects which read data, clean it and create chunks of data, encapsulate each chunk inside an object of the `Document` class, and return **`List[Document]`**.  | `TextReader()` |
+|`optimize_on`|`int`| It is used to specify the number of documents on which to optimize the vector database. Supposed to create an index. |`1000`|
+
+??? Tip "Wonder! What is `Document` class?"
+    We know that, before storing the data in vectorDB, we need to split the data into smaller chunks upon which embeddings will be created and these embeddings along with the chunks will be stored in vectorDB. When the user queries over the vectorDB, some of these embeddings will be returned as the result based on the semantic similarity with the query.
+    
+    When the user queries over vectorDB, the queries are converted into embeddings, and a nearest neighbor search is performed over these query embeddings which returns the embeddings that correspond to most semantically similar chunks(parts of our data) present in vectorDB. 
+
+    Here, a “Document” is a class in phidata. Since there is an option to let phidata create and manage embeddings, it splits our data into smaller chunks(as expected). It does not directly create embeddings on it. Instead, it takes each chunk and encapsulates it inside the object of the `Document` class along with various other metadata related to the chunk. Then embeddings are created on these `Document` objects and stored in vectorDB.
+
+    ```python
+    class Document(BaseModel):
+        """Model for managing a document"""
+
+        content: str # <--- here data of chunk is stored 
+        id: Optional[str] = None
+        name: Optional[str] = None
+        meta_data: Dict[str, Any] = {}
+        embedder: Optional[Embedder] = None
+        embedding: Optional[List[float]] = None
+        usage: Optional[Dict[str, Any]] = None
+    ```
+
+However, using phidata you can load many other types of data in the knowledge base(other than text). Check out [phidata Knowledge Base](https://docs.phidata.com/knowledge/introduction) for more information.
+
+Let's dig deeper into the `vector_db` parameter and see what parameters `LanceDb` takes -
+
+| Name| Type | Purpose | Default |
+|:----|:-----|:--------|:--------|
+|`embedder`|`Embedder`| phidata provides many Embedders that abstract the interaction with embedding APIs and utilize it to generate embeddings. Check out other embedders [here](https://docs.phidata.com/embedder/introduction) | `OpenAIEmbedder` |
+|`distance`|`List[str]`| The choice of distance metric used to calculate the similarity between vectors, which directly impacts search results and performance in vector databases. |`Distance.cosine`|
+|`connection`|`lancedb.db.LanceTable`| LanceTable can be accessed through `.connection`. You can connect to an existing table of LanceDB, created outside of phidata, and utilize it. If not provided, it creates a new table using `table_name` parameter and adds it to `connection`. |`None`|
+|`uri`|`str`| It specifies the directory location of **LanceDB database** and establishes a connection that can be used to interact with the database. | `"/tmp/lancedb"` |
+|`table_name`|`str`|  If `connection` is not provided, it initializes and connects to a new **LanceDB table** with a specified(or default) name in the database present at `uri`. |`"phi"`|
+|`nprobes`|`int`| It refers to the number of partitions that the search algorithm examines to find the nearest neighbors of a given query vector. Higher values will yield better recall (more likely to find vectors if they exist) at the expense of latency. |`20`|
+
+
+!!! note
+    Since we just initialized the KnowledgeBase. The VectorDB table that corresponds to this Knowledge Base is not yet populated with our data. It will be populated in **Step 3**, once we perform the `load` operation. 
+    
+    You can check the state of the LanceDB table using - `knowledge_base.vector_db.connection.to_pandas()`
+
+Now that the Knowledge Base is initialized, , we can go to **step 2**.
+
+## **Step 2** -  Create an assistant with our choice of LLM and reference to the knowledge base.
+
+
+=== "openai_assistant.py"
+
+    ```python
+    # define an assistant with gpt-4o-mini llm and reference to the knowledge base created above
+    assistant = Assistant(
+        llm=OpenAIChat(model="gpt-4o-mini", max_tokens=1000, temperature=0.3,api_key = openai.api_key),
+        description="""You are an Expert in explaining youtube video transcripts. You are a bot that takes transcript of a video and answer the question based on it.
+        
+        This is transcript for the above timestamp: {relevant_document}
+        The user input is: {user_input}
+        generate highlights only when asked.
+        When asked to generate highlights from the video, understand the context for each timestamp and create key highlight points, answer in following way - 
+        [timestamp] - highlight 1
+        [timestamp] - highlight 2
+        ... so on
+        
+        Your task is to understand the user question, and provide an answer using the provided contexts. Your answers are correct, high-quality, and written by an domain expert. If the provided context does not contain the answer, simply state,'The provided context does not have the answer.'""",
+        knowledge_base=knowledge_base,
+        add_references_to_prompt=True,
+    )
+    ```
+
+=== "ollama_assistant.py"
+
+    ```python
+    # define an assistant with llama3.1 llm and reference to the knowledge base created above
+    assistant = Assistant(
+        llm=Ollama(model="llama3.1"),
+        description="""You are an Expert in explaining youtube video transcripts. You are a bot that takes transcript of a video and answer the question based on it.
+
+        This is transcript for the above timestamp: {relevant_document}
+        The user input is: {user_input}
+        generate highlights only when asked.
+        When asked to generate highlights from the video, understand the context for each timestamp and create key highlight points, answer in following way - 
+        [timestamp] - highlight 1
+        [timestamp] - highlight 2
+        ... so on
+
+        Your task is to understand the user question, and provide an answer using the provided contexts. Your answers are correct, high-quality, and written by an domain expert. If the provided context does not contain the answer, simply state,'The provided context does not have the answer.'""",
+        knowledge_base=knowledge_base,
+        add_references_to_prompt=True,
+    )
+    ```
+
+Assistants add **memory**, **knowledge**, and **tools** to LLMs. Here we will add only **knowledge** in this example. 
+
+Whenever we will give a query to LLM, the assistant will retrieve relevant information from our **Knowledge Base**(table in LanceDB) and pass it to LLM along with the user query in a structured way. 
+
+- The `add_references_to_prompt=True` always adds information from the knowledge base to the prompt, regardless of whether it is relevant to the question.
+
+To know more about an creating assistant in phidata, check out [phidata docs](https://docs.phidata.com/assistants/introduction) here.
+
+## **Step 3** - Load data to Knowledge Base.
+
+```python
+# load out data into the knowledge_base (populating the LanceTable)
+assistant.knowledge_base.load(recreate=False)
+```
+The above code loads the data to the Knowledge Base(LanceDB Table) and now it is ready to be used by the assistant. 
+
+| Name| Type | Purpose | Default |
+|:----|:-----|:--------|:--------|
+|`recreate`|`bool`| If True, it drops the existing table and recreates the table in the vectorDB. |`False`|
+|`upsert`|`bool`| If True and the vectorDB supports upsert, it will upsert documents to the vector db. | `False` |
+|`skip_existing`|`bool`| If True, skips documents that already exist in the vectorDB when inserting. |`True`|
+
+??? tip "What is upsert?"
+    Upsert is a database operation that combines "update" and "insert". It updates existing records if a document with the same identifier does exist, or inserts new records if no matching record exists. This is useful for maintaining the most current information without manually checking for existence.
+
+During the Load operation, phidata directly interacts with the LanceDB library and performs the loading of the table with our data in the following steps -     
+
+1. **Creates** and **initializes** the table if it does not exist.
+
+2. Then it **splits** our data into smaller **chunks**.
+
+    ??? question "How do they create chunks?"
+        **phidata** provides many types of **Knowledge Bases** based on the type of data. Most of them :material-information-outline:{ title="except LlamaIndexKnowledgeBase and LangChainKnowledgeBase"} has a property method called `document_lists` of type `Iterator[List[Document]]`. During the load operation, this property method is invoked. It traverses on the data provided by us (in this case, a text file(s)) using `reader`. Then it **reads**, **creates chunks**, and **encapsulates** each chunk inside a `Document` object and yields **lists of `Document` objects** that contain our data.
+
+3. Then **embeddings** are created on these chunks are **inserted** into the LanceDB Table 
+
+    ??? question "How do they insert your data as different rows in LanceDB Table?"
+        The chunks of your data are in the form - **lists of `Document` objects**. It was yielded in the step above.
+
+        for each `Document` in `List[Document]`, it does the following operations:
+        
+        - Creates embedding on `Document`.
+        - Cleans the **content attribute**(chunks of our data is here) of `Document`.
+        - Prepares data by creating `id` and loading `payload` with the metadata related to this chunk. (1)
+            { .annotate }
+
+            1.  Three columns will be added to the table - `"id"`, `"vector"`, and `"payload"` (payload contains various metadata including **`content`**)
+                
+        - Then add this data to LanceTable. 
+
+4. Now the internal state of `knowledge_base` is changed (embeddings are created and loaded in the table ) and it **ready to be used by assistant**.
+
+## **Step 4** - Start a cli chatbot with access to the Knowledge base  
+
+```python
+# start cli chatbot with knowledge base
+assistant.print_response("Ask me about something from the knowledge base")
+while True:
+    message = Prompt.ask(f"[bold] :sunglasses: User [/bold]")
+    if message in ("exit", "bye"):
+        break
+    assistant.print_response(message, markdown=True)
+```  
+
+
+For more information and amazing cookbooks of phidata, read the [phidata documentation](https://docs.phidata.com/introduction) and also visit [LanceDB x phidata docmentation](https://docs.phidata.com/vectordb/lancedb).

docs/src/integrations/voxel51.md

@@ -1,13 +1,73 @@
 # FiftyOne
 
-FiftyOne is an open source toolkit for building high-quality datasets and computer vision models. It provides an API to create LanceDB tables and run similarity queries, both programmatically in Python and via point-and-click in the App.
+FiftyOne is an open source toolkit that enables users to curate better data and build better models. It includes tools for data exploration, visualization, and management, as well as features for collaboration and sharing. 
+
+Any developers, data scientists, and researchers who work with computer vision and machine learning can use FiftyOne to improve the quality of their datasets and deliver insights about their models.
+
 
 ![example](../assets/voxel.gif)
 
-## Basic recipe
+**FiftyOne** provides an API to create LanceDB tables and run similarity queries, both **programmatically in Python** and via **point-and-click in the App**.
 
-The basic workflow shown below uses LanceDB to create a similarity index on your FiftyOne
-datasets:
+Let's get started and see how to use **LanceDB** to create a **similarity index** on your FiftyOne datasets.
+
+## Overview 
+
+**[Embeddings](../embeddings/understanding_embeddings.md)** are foundational to all of the **vector search** features. In FiftyOne, embeddings are managed by the [**FiftyOne Brain**](https://docs.voxel51.com/user_guide/brain.html) that provides powerful machine learning techniques designed to transform how you curate your data from an art into a measurable science. 
+
+!!!question "Have you ever wanted to find the images most similar to an image in your dataset?"
+    The **FiftyOne Brain** makes computing **visual similarity** really easy. You can compute the similarity of samples in your dataset using an embedding model and store the results in the **brain key**. 
+
+    You can then sort your samples by similarity or use this information to find potential duplicate images.
+
+Here we will be doing the following : 
+
+1. **Create Index** - In order to run similarity queries against our media, we need to **index** the data. We can do this via the `compute_similarity()` function. 
+
+    -  In the function, specify the **model** you want to use to generate the embedding vectors, and what **vector search engine** you want to use on the **backend** (here LanceDB). 
+    
+    !!!tip
+        You can also give the similarity index a name(`brain_key`), which is useful if you want to run vector searches against multiple indexes.
+
+2. **Query** - Once you have generated your similarity index, you can query your dataset with `sort_by_similarity()`. The query can be any of the following:
+
+    - An ID (sample or patch)
+    - A query vector of same dimension as the index
+    - A list of IDs (samples or patches)
+    - A text prompt (search semantically)
+
+## Prerequisites: install necessary dependencies
+
+1. **Create and activate a virtual environment**
+
+    Install virtualenv package and run the following command in your project directory.
+    ```python
+    python -m venv fiftyone_
+    ```
+    From inside the project directory run the following to activate the virtual environment.
+    === "Windows"
+
+        ```python
+        fiftyone_/Scripts/activate
+        ```
+
+    === "macOS/Linux"
+
+        ```python
+        source fiftyone_/Scripts/activate
+        ```
+
+2. **Install the following packages in the virtual environment**
+
+    To install FiftyOne, ensure you have activated any virtual environment that you are using, then run
+    ```python
+    pip install fiftyone
+    ```
+
+
+## Understand basic workflow
+
+The basic workflow shown below uses LanceDB to create a similarity index on your FiftyOne datasets:
 
 1. Load a dataset into FiftyOne.
 
@@ -19,14 +79,10 @@ datasets:
 
 5. If desired, delete the table.
 
-The example below demonstrates this workflow.
+## Quick Example
 
-!!! Note
+Let's jump on a quick example that demonstrates this workflow.
 
-    Install the LanceDB Python client to run the code shown below.
-    ```
-    pip install lancedb
-    ```
 
 ```python
 
@@ -36,7 +92,10 @@ import fiftyone.zoo as foz
 
 # Step 1: Load your data into FiftyOne
 dataset = foz.load_zoo_dataset("quickstart")
+```
+Make sure you install torch ([guide here](https://pytorch.org/get-started/locally/)) before proceeding. 
 
+```python
 # Steps 2 and 3: Compute embeddings and create a similarity index
 lancedb_index = fob.compute_similarity(
     dataset, 
@@ -45,8 +104,11 @@ lancedb_index = fob.compute_similarity(
     backend="lancedb",
 )
 ```
-Once the similarity index has been generated, we can query our data in FiftyOne
-by specifying the `brain_key`:
+
+!!! note
+    Running the code above will download the clip model (2.6Gb)
+
+Once the similarity index has been generated, we can query our data in FiftyOne by specifying the `brain_key`:
 
 ```python
 # Step 4: Query your data
@@ -56,7 +118,22 @@ view = dataset.sort_by_similarity(
     brain_key="lancedb_index",
     k=10,  # limit to 10 most similar samples
 )
+```
+The returned result are of type - `DatasetView`.
 
+!!! note
+    `DatasetView` does not hold its contents in-memory. Views simply store the rule(s) that are applied to extract the content of interest from the underlying Dataset when the view is iterated/aggregated on.
+
+    This means, for example, that the contents of a `DatasetView` may change as the underlying Dataset is modified.
+
+??? question "Can you query a view instead of dataset?"
+    Yes, you can also query a view.
+
+    Performing a similarity search on a `DatasetView` will only return results from the view; if the view contains samples that were not included in the index, they will never be included in the result.
+
+    This means that you can index an entire Dataset once and then perform searches on subsets of the dataset by constructing views that contain the images of interest.
+
+```python
 # Step 5 (optional): Cleanup
 
 # Delete the LanceDB table
@@ -66,4 +143,90 @@ lancedb_index.cleanup()
 dataset.delete_brain_run("lancedb_index")
 ```
 
+
+## Using LanceDB backend
+By default, calling `compute_similarity()` or `sort_by_similarity()` will use an sklearn backend.
+
+To use the LanceDB backend, simply set the optional `backend` parameter of `compute_similarity()` to `"lancedb"`:
+
+```python
+import fiftyone.brain as fob
+#... rest of the code
+fob.compute_similarity(..., backend="lancedb", ...)
+```
+
+Alternatively, you can configure FiftyOne to use the LanceDB backend by setting the following environment variable.
+
+In your terminal, set the environment variable using:
+=== "Windows"
+
+    ```python
+    $Env:FIFTYONE_BRAIN_DEFAULT_SIMILARITY_BACKEND="lancedb" //powershell
+
+    set FIFTYONE_BRAIN_DEFAULT_SIMILARITY_BACKEND=lancedb //cmd
+    ```
+
+=== "macOS/Linux"
+
+    ```python
+    export FIFTYONE_BRAIN_DEFAULT_SIMILARITY_BACKEND=lancedb
+    ```
+
+!!! note
+    This will only run during the terminal session. Once terminal is closed, environment variable is deleted.
+
+Alternatively, you can **permanently** configure FiftyOne to use the LanceDB backend creating a `brain_config.json` at `~/.fiftyone/brain_config.json`. The JSON file may contain any desired subset of config fields that you wish to customize.
+
+```json
+{
+    "default_similarity_backend": "lancedb"
+}
+```
+This will override the default `brain_config` and will set it according to your customization. You can check the configuration by running the following code : 
+
+```python
+import fiftyone.brain as fob
+# Print your current brain config
+print(fob.brain_config)
+```
+
+## LanceDB config parameters
+
+The LanceDB backend supports query parameters that can be used to customize your similarity queries. These parameters include:
+
+| Name| Purpose | Default |
+|:----|:--------|:--------|
+|**table_name**|The name of the LanceDB table to use. If none is provided, a new table will be created|`None`|
+|**metric**|The embedding distance metric to use when creating a new table. The supported values are ("cosine", "euclidean")|`"cosine"`|
+|**uri**| The database URI to use. In this Database URI, tables will be created. |`"/tmp/lancedb"`|
+
+There are two ways to specify/customize the parameters:
+
+1. **Using `brain_config.json` file** 
+
+    ```json
+    {
+        "similarity_backends": {
+            "lancedb": {
+                "table_name": "your-table",
+                "metric": "euclidean",
+                "uri": "/tmp/lancedb"
+            }
+        }
+    }
+    ```
+
+2. **Directly passing to `compute_similarity()` to configure a specific new index** : 
+
+    ```python
+    lancedb_index = fob.compute_similarity(
+        ...
+        backend="lancedb",
+        brain_key="lancedb_index",
+        table_name="your-table",
+        metric="euclidean",
+        uri="/tmp/lancedb",
+    )
+    ```
+
 For a much more in depth walkthrough of the integration, visit the LanceDB x Voxel51 [docs page](https://docs.voxel51.com/integrations/lancedb.html).

docs/src/javascript/README.md

@@ -41,7 +41,6 @@ To build everything fresh:
 
 ```bash
 npm install
-npm run tsc
 npm run build
 ```
 
@@ -51,18 +50,6 @@ Then you should be able to run the tests with:
 npm test
 ```
 
-### Rebuilding Rust library
-
-```bash
-npm run build
-```
-
-### Rebuilding Typescript
-
-```bash
-npm run tsc
-```
-
 ### Fix lints
 
 To run the linter and have it automatically fix all errors

docs/src/javascript/classes/DefaultWriteOptions.md

@@ -38,4 +38,4 @@ A [WriteMode](../enums/WriteMode.md) to use on this operation
 
 #### Defined in
 
-[index.ts:1019](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L1019)
+[index.ts:1359](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1359)

docs/src/javascript/classes/LocalConnection.md

@@ -30,6 +30,7 @@ A connection to a LanceDB database.
 - [dropTable](LocalConnection.md#droptable)
 - [openTable](LocalConnection.md#opentable)
 - [tableNames](LocalConnection.md#tablenames)
+- [withMiddleware](LocalConnection.md#withmiddleware)
 
 ## Constructors
 
@@ -46,7 +47,7 @@ A connection to a LanceDB database.
 
 #### Defined in
 
-[index.ts:489](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L489)
+[index.ts:739](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L739)
 
 ## Properties
 
@@ -56,7 +57,7 @@ A connection to a LanceDB database.
 
 #### Defined in
 
-[index.ts:487](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L487)
+[index.ts:737](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L737)
 
 ___
 
@@ -74,7 +75,7 @@ ___
 
 #### Defined in
 
-[index.ts:486](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L486)
+[index.ts:736](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L736)
 
 ## Accessors
 
@@ -92,7 +93,7 @@ ___
 
 #### Defined in
 
-[index.ts:494](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L494)
+[index.ts:744](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L744)
 
 ## Methods
 
@@ -113,7 +114,7 @@ Creates a new Table, optionally initializing it with new data.
 | Name | Type |
 | :------ | :------ |
 | `name` | `string` \| [`CreateTableOptions`](../interfaces/CreateTableOptions.md)\<`T`\> |
-| `data?` | `Record`\<`string`, `unknown`\>[] |
+| `data?` | `Table`\<`any`\> \| `Record`\<`string`, `unknown`\>[] |
 | `optsOrEmbedding?` | [`WriteOptions`](../interfaces/WriteOptions.md) \| [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)\<`T`\> |
 | `opt?` | [`WriteOptions`](../interfaces/WriteOptions.md) |
 
@@ -127,7 +128,7 @@ Creates a new Table, optionally initializing it with new data.
 
 #### Defined in
 
-[index.ts:542](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L542)
+[index.ts:788](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L788)
 
 ___
 
@@ -158,7 +159,7 @@ ___
 
 #### Defined in
 
-[index.ts:576](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L576)
+[index.ts:822](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L822)
 
 ___
 
@@ -184,7 +185,7 @@ Drop an existing table.
 
 #### Defined in
 
-[index.ts:630](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L630)
+[index.ts:876](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L876)
 
 ___
 
@@ -210,7 +211,7 @@ Open a table in the database.
 
 #### Defined in
 
-[index.ts:510](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L510)
+[index.ts:760](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L760)
 
 ▸ **openTable**\<`T`\>(`name`, `embeddings`): `Promise`\<[`Table`](../interfaces/Table.md)\<`T`\>\>
 
@@ -239,7 +240,7 @@ Connection.openTable
 
 #### Defined in
 
-[index.ts:518](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L518)
+[index.ts:768](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L768)
 
 ▸ **openTable**\<`T`\>(`name`, `embeddings?`): `Promise`\<[`Table`](../interfaces/Table.md)\<`T`\>\>
 
@@ -266,7 +267,7 @@ Connection.openTable
 
 #### Defined in
 
-[index.ts:522](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L522)
+[index.ts:772](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L772)
 
 ___
 
@@ -286,4 +287,36 @@ Get the names of all tables in the database.
 
 #### Defined in
 
-[index.ts:501](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L501)
+[index.ts:751](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L751)
+
+___
+
+### withMiddleware
+
+▸ **withMiddleware**(`middleware`): [`Connection`](../interfaces/Connection.md)
+
+Instrument the behavior of this Connection with middleware.
+
+The middleware will be called in the order they are added.
+
+Currently this functionality is only supported for remote Connections.
+
+#### Parameters
+
+| Name | Type |
+| :------ | :------ |
+| `middleware` | `HttpMiddleware` |
+
+#### Returns
+
+[`Connection`](../interfaces/Connection.md)
+
+- this Connection instrumented by the passed middleware
+
+#### Implementation of
+
+[Connection](../interfaces/Connection.md).[withMiddleware](../interfaces/Connection.md#withmiddleware)
+
+#### Defined in
+
+[index.ts:880](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L880)

docs/src/javascript/classes/LocalTable.md

@@ -37,6 +37,8 @@ A LanceDB Table is the collection of Records. Each Record has one or more vector
 ### Methods
 
 - [add](LocalTable.md#add)
+- [addColumns](LocalTable.md#addcolumns)
+- [alterColumns](LocalTable.md#altercolumns)
 - [checkElectron](LocalTable.md#checkelectron)
 - [cleanupOldVersions](LocalTable.md#cleanupoldversions)
 - [compactFiles](LocalTable.md#compactfiles)
@@ -44,13 +46,16 @@ A LanceDB Table is the collection of Records. Each Record has one or more vector
 - [createIndex](LocalTable.md#createindex)
 - [createScalarIndex](LocalTable.md#createscalarindex)
 - [delete](LocalTable.md#delete)
+- [dropColumns](LocalTable.md#dropcolumns)
 - [filter](LocalTable.md#filter)
 - [getSchema](LocalTable.md#getschema)
 - [indexStats](LocalTable.md#indexstats)
 - [listIndices](LocalTable.md#listindices)
+- [mergeInsert](LocalTable.md#mergeinsert)
 - [overwrite](LocalTable.md#overwrite)
 - [search](LocalTable.md#search)
 - [update](LocalTable.md#update)
+- [withMiddleware](LocalTable.md#withmiddleware)
 
 ## Constructors
 
@@ -74,7 +79,7 @@ A LanceDB Table is the collection of Records. Each Record has one or more vector
 
 #### Defined in
 
-[index.ts:642](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L642)
+[index.ts:892](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L892)
 
 • **new LocalTable**\<`T`\>(`tbl`, `name`, `options`, `embeddings`)
 
@@ -95,7 +100,7 @@ A LanceDB Table is the collection of Records. Each Record has one or more vector
 
 #### Defined in
 
-[index.ts:649](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L649)
+[index.ts:899](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L899)
 
 ## Properties
 
@@ -105,7 +110,7 @@ A LanceDB Table is the collection of Records. Each Record has one or more vector
 
 #### Defined in
 
-[index.ts:639](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L639)
+[index.ts:889](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L889)
 
 ___
 
@@ -115,7 +120,7 @@ ___
 
 #### Defined in
 
-[index.ts:638](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L638)
+[index.ts:888](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L888)
 
 ___
 
@@ -125,7 +130,7 @@ ___
 
 #### Defined in
 
-[index.ts:637](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L637)
+[index.ts:887](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L887)
 
 ___
 
@@ -143,7 +148,7 @@ ___
 
 #### Defined in
 
-[index.ts:640](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L640)
+[index.ts:890](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L890)
 
 ___
 
@@ -153,7 +158,7 @@ ___
 
 #### Defined in
 
-[index.ts:636](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L636)
+[index.ts:886](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L886)
 
 ___
 
@@ -179,7 +184,7 @@ Creates a filter query to find all rows matching the specified criteria
 
 #### Defined in
 
-[index.ts:688](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L688)
+[index.ts:938](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L938)
 
 ## Accessors
 
@@ -197,7 +202,7 @@ Creates a filter query to find all rows matching the specified criteria
 
 #### Defined in
 
-[index.ts:668](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L668)
+[index.ts:918](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L918)
 
 ___
 
@@ -215,7 +220,7 @@ ___
 
 #### Defined in
 
-[index.ts:849](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L849)
+[index.ts:1171](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1171)
 
 ## Methods
 
@@ -229,7 +234,7 @@ Insert records into this Table.
 
 | Name | Type | Description |
 | :------ | :------ | :------ |
-| `data` | `Record`\<`string`, `unknown`\>[] | Records to be inserted into the Table |
+| `data` | `Table`\<`any`\> \| `Record`\<`string`, `unknown`\>[] | Records to be inserted into the Table |
 
 #### Returns
 
@@ -243,7 +248,59 @@ The number of rows added to the table
 
 #### Defined in
 
-[index.ts:696](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L696)
+[index.ts:946](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L946)
+
+___
+
+### addColumns
+
+▸ **addColumns**(`newColumnTransforms`): `Promise`\<`void`\>
+
+Add new columns with defined values.
+
+#### Parameters
+
+| Name | Type | Description |
+| :------ | :------ | :------ |
+| `newColumnTransforms` | \{ `name`: `string` ; `valueSql`: `string`  }[] | pairs of column names and the SQL expression to use to calculate the value of the new column. These expressions will be evaluated for each row in the table, and can reference existing columns in the table. |
+
+#### Returns
+
+`Promise`\<`void`\>
+
+#### Implementation of
+
+[Table](../interfaces/Table.md).[addColumns](../interfaces/Table.md#addcolumns)
+
+#### Defined in
+
+[index.ts:1195](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1195)
+
+___
+
+### alterColumns
+
+▸ **alterColumns**(`columnAlterations`): `Promise`\<`void`\>
+
+Alter the name or nullability of columns.
+
+#### Parameters
+
+| Name | Type | Description |
+| :------ | :------ | :------ |
+| `columnAlterations` | [`ColumnAlteration`](../interfaces/ColumnAlteration.md)[] | One or more alterations to apply to columns. |
+
+#### Returns
+
+`Promise`\<`void`\>
+
+#### Implementation of
+
+[Table](../interfaces/Table.md).[alterColumns](../interfaces/Table.md#altercolumns)
+
+#### Defined in
+
+[index.ts:1201](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1201)
 
 ___
 
@@ -257,7 +314,7 @@ ___
 
 #### Defined in
 
-[index.ts:861](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L861)
+[index.ts:1183](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1183)
 
 ___
 
@@ -280,7 +337,7 @@ Clean up old versions of the table, freeing disk space.
 
 #### Defined in
 
-[index.ts:808](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L808)
+[index.ts:1130](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1130)
 
 ___
 
@@ -307,16 +364,22 @@ Metrics about the compaction operation.
 
 #### Defined in
 
-[index.ts:831](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L831)
+[index.ts:1153](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1153)
 
 ___
 
 ### countRows
 
-▸ **countRows**(): `Promise`\<`number`\>
+▸ **countRows**(`filter?`): `Promise`\<`number`\>
 
 Returns the number of rows in this table.
 
+#### Parameters
+
+| Name | Type |
+| :------ | :------ |
+| `filter?` | `string` |
+
 #### Returns
 
 `Promise`\<`number`\>
@@ -327,7 +390,7 @@ Returns the number of rows in this table.
 
 #### Defined in
 
-[index.ts:749](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L749)
+[index.ts:1021](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1021)
 
 ___
 
@@ -357,13 +420,13 @@ VectorIndexParams.
 
 #### Defined in
 
-[index.ts:734](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L734)
+[index.ts:1003](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1003)
 
 ___
 
 ### createScalarIndex
 
-▸ **createScalarIndex**(`column`, `replace`): `Promise`\<`void`\>
+▸ **createScalarIndex**(`column`, `replace?`): `Promise`\<`void`\>
 
 Create a scalar index on this Table for the given column
 
@@ -372,7 +435,7 @@ Create a scalar index on this Table for the given column
 | Name | Type | Description |
 | :------ | :------ | :------ |
 | `column` | `string` | The column to index |
-| `replace` | `boolean` | If false, fail if an index already exists on the column Scalar indices, like vector indices, can be used to speed up scans. A scalar index can speed up scans that contain filter expressions on the indexed column. For example, the following scan will be faster if the column `my_col` has a scalar index: ```ts const con = await lancedb.connect('./.lancedb'); const table = await con.openTable('images'); const results = await table.where('my_col = 7').execute(); ``` Scalar indices can also speed up scans containing a vector search and a prefilter: ```ts const con = await lancedb.connect('././lancedb'); const table = await con.openTable('images'); const results = await table.search([1.0, 2.0]).where('my_col != 7').prefilter(true); ``` Scalar indices can only speed up scans for basic filters using equality, comparison, range (e.g. `my_col BETWEEN 0 AND 100`), and set membership (e.g. `my_col IN (0, 1, 2)`) Scalar indices can be used if the filter contains multiple indexed columns and the filter criteria are AND'd or OR'd together (e.g. `my_col < 0 AND other_col> 100`) Scalar indices may be used if the filter contains non-indexed columns but, depending on the structure of the filter, they may not be usable. For example, if the column `not_indexed` does not have a scalar index then the filter `my_col = 0 OR not_indexed = 1` will not be able to use any scalar index on `my_col`. |
+| `replace?` | `boolean` | If false, fail if an index already exists on the column it is always set to true for remote connections Scalar indices, like vector indices, can be used to speed up scans. A scalar index can speed up scans that contain filter expressions on the indexed column. For example, the following scan will be faster if the column `my_col` has a scalar index: ```ts const con = await lancedb.connect('./.lancedb'); const table = await con.openTable('images'); const results = await table.where('my_col = 7').execute(); ``` Scalar indices can also speed up scans containing a vector search and a prefilter: ```ts const con = await lancedb.connect('././lancedb'); const table = await con.openTable('images'); const results = await table.search([1.0, 2.0]).where('my_col != 7').prefilter(true); ``` Scalar indices can only speed up scans for basic filters using equality, comparison, range (e.g. `my_col BETWEEN 0 AND 100`), and set membership (e.g. `my_col IN (0, 1, 2)`) Scalar indices can be used if the filter contains multiple indexed columns and the filter criteria are AND'd or OR'd together (e.g. `my_col < 0 AND other_col> 100`) Scalar indices may be used if the filter contains non-indexed columns but, depending on the structure of the filter, they may not be usable. For example, if the column `not_indexed` does not have a scalar index then the filter `my_col = 0 OR not_indexed = 1` will not be able to use any scalar index on `my_col`. |
 
 #### Returns
 
@@ -392,7 +455,7 @@ await table.createScalarIndex('my_col')
 
 #### Defined in
 
-[index.ts:742](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L742)
+[index.ts:1011](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1011)
 
 ___
 
@@ -418,7 +481,38 @@ Delete rows from this table.
 
 #### Defined in
 
-[index.ts:758](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L758)
+[index.ts:1030](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1030)
+
+___
+
+### dropColumns
+
+▸ **dropColumns**(`columnNames`): `Promise`\<`void`\>
+
+Drop one or more columns from the dataset
+
+This is a metadata-only operation and does not remove the data from the
+underlying storage. In order to remove the data, you must subsequently
+call ``compact_files`` to rewrite the data without the removed columns and
+then call ``cleanup_files`` to remove the old files.
+
+#### Parameters
+
+| Name | Type | Description |
+| :------ | :------ | :------ |
+| `columnNames` | `string`[] | The names of the columns to drop. These can be nested column references (e.g. "a.b.c") or top-level column names (e.g. "a"). |
+
+#### Returns
+
+`Promise`\<`void`\>
+
+#### Implementation of
+
+[Table](../interfaces/Table.md).[dropColumns](../interfaces/Table.md#dropcolumns)
+
+#### Defined in
+
+[index.ts:1205](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1205)
 
 ___
 
@@ -438,9 +532,13 @@ Creates a filter query to find all rows matching the specified criteria
 
 [`Query`](Query.md)\<`T`\>
 
+#### Implementation of
+
+[Table](../interfaces/Table.md).[filter](../interfaces/Table.md#filter)
+
 #### Defined in
 
-[index.ts:684](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L684)
+[index.ts:934](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L934)
 
 ___
 
@@ -454,13 +552,13 @@ ___
 
 #### Defined in
 
-[index.ts:854](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L854)
+[index.ts:1176](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1176)
 
 ___
 
 ### indexStats
 
-▸ **indexStats**(`indexUuid`): `Promise`\<[`IndexStats`](../interfaces/IndexStats.md)\>
+▸ **indexStats**(`indexName`): `Promise`\<[`IndexStats`](../interfaces/IndexStats.md)\>
 
 Get statistics about an index.
 
@@ -468,7 +566,7 @@ Get statistics about an index.
 
 | Name | Type |
 | :------ | :------ |
-| `indexUuid` | `string` |
+| `indexName` | `string` |
 
 #### Returns
 
@@ -480,7 +578,7 @@ Get statistics about an index.
 
 #### Defined in
 
-[index.ts:845](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L845)
+[index.ts:1167](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1167)
 
 ___
 
@@ -500,7 +598,57 @@ List the indicies on this table.
 
 #### Defined in
 
-[index.ts:841](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L841)
+[index.ts:1163](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1163)
+
+___
+
+### mergeInsert
+
+▸ **mergeInsert**(`on`, `data`, `args`): `Promise`\<`void`\>
+
+Runs a "merge insert" operation on the table
+
+This operation can add rows, update rows, and remove rows all in a single
+transaction. It is a very generic tool that can be used to create
+behaviors like "insert if not exists", "update or insert (i.e. upsert)",
+or even replace a portion of existing data with new data (e.g. replace
+all data where month="january")
+
+The merge insert operation works by combining new data from a
+**source table** with existing data in a **target table** by using a
+join.  There are three categories of records.
+
+"Matched" records are records that exist in both the source table and
+the target table. "Not matched" records exist only in the source table
+(e.g. these are new data) "Not matched by source" records exist only
+in the target table (this is old data)
+
+The MergeInsertArgs can be used to customize what should happen for
+each category of data.
+
+Please note that the data may appear to be reordered as part of this
+operation.  This is because updated rows will be deleted from the
+dataset and then reinserted at the end with the new values.
+
+#### Parameters
+
+| Name | Type | Description |
+| :------ | :------ | :------ |
+| `on` | `string` | a column to join on. This is how records from the source table and target table are matched. |
+| `data` | `Table`\<`any`\> \| `Record`\<`string`, `unknown`\>[] | the new data to insert |
+| `args` | [`MergeInsertArgs`](../interfaces/MergeInsertArgs.md) | parameters controlling how the operation should behave |
+
+#### Returns
+
+`Promise`\<`void`\>
+
+#### Implementation of
+
+[Table](../interfaces/Table.md).[mergeInsert](../interfaces/Table.md#mergeinsert)
+
+#### Defined in
+
+[index.ts:1065](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1065)
 
 ___
 
@@ -514,7 +662,7 @@ Insert records into this Table, replacing its contents.
 
 | Name | Type | Description |
 | :------ | :------ | :------ |
-| `data` | `Record`\<`string`, `unknown`\>[] | Records to be inserted into the Table |
+| `data` | `Table`\<`any`\> \| `Record`\<`string`, `unknown`\>[] | Records to be inserted into the Table |
 
 #### Returns
 
@@ -528,7 +676,7 @@ The number of rows added to the table
 
 #### Defined in
 
-[index.ts:716](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L716)
+[index.ts:977](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L977)
 
 ___
 
@@ -554,7 +702,7 @@ Creates a search query to find the nearest neighbors of the given search term
 
 #### Defined in
 
-[index.ts:676](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L676)
+[index.ts:926](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L926)
 
 ___
 
@@ -580,4 +728,36 @@ Update rows in this table.
 
 #### Defined in
 
-[index.ts:771](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L771)
+[index.ts:1043](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1043)
+
+___
+
+### withMiddleware
+
+▸ **withMiddleware**(`middleware`): [`Table`](../interfaces/Table.md)\<`T`\>
+
+Instrument the behavior of this Table with middleware.
+
+The middleware will be called in the order they are added.
+
+Currently this functionality is only supported for remote tables.
+
+#### Parameters
+
+| Name | Type |
+| :------ | :------ |
+| `middleware` | `HttpMiddleware` |
+
+#### Returns
+
+[`Table`](../interfaces/Table.md)\<`T`\>
+
+- this Table instrumented by the passed middleware
+
+#### Implementation of
+
+[Table](../interfaces/Table.md).[withMiddleware](../interfaces/Table.md#withmiddleware)
+
+#### Defined in
+
+[index.ts:1209](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1209)

docs/src/javascript/classes/MakeArrowTableOptions.md

@@ -0,0 +1,82 @@
+[vectordb](../README.md) / [Exports](../modules.md) / MakeArrowTableOptions
+
+# Class: MakeArrowTableOptions
+
+Options to control the makeArrowTable call.
+
+## Table of contents
+
+### Constructors
+
+- [constructor](MakeArrowTableOptions.md#constructor)
+
+### Properties
+
+- [dictionaryEncodeStrings](MakeArrowTableOptions.md#dictionaryencodestrings)
+- [embeddings](MakeArrowTableOptions.md#embeddings)
+- [schema](MakeArrowTableOptions.md#schema)
+- [vectorColumns](MakeArrowTableOptions.md#vectorcolumns)
+
+## Constructors
+
+### constructor
+
+• **new MakeArrowTableOptions**(`values?`)
+
+#### Parameters
+
+| Name | Type |
+| :------ | :------ |
+| `values?` | `Partial`\<[`MakeArrowTableOptions`](MakeArrowTableOptions.md)\> |
+
+#### Defined in
+
+[arrow.ts:98](https://github.com/lancedb/lancedb/blob/92179835/node/src/arrow.ts#L98)
+
+## Properties
+
+### dictionaryEncodeStrings
+
+• **dictionaryEncodeStrings**: `boolean` = `false`
+
+If true then string columns will be encoded with dictionary encoding
+
+Set this to true if your string columns tend to repeat the same values
+often.  For more precise control use the `schema` property to specify the
+data type for individual columns.
+
+If `schema` is provided then this property is ignored.
+
+#### Defined in
+
+[arrow.ts:96](https://github.com/lancedb/lancedb/blob/92179835/node/src/arrow.ts#L96)
+
+___
+
+### embeddings
+
+• `Optional` **embeddings**: [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)\<`any`\>
+
+#### Defined in
+
+[arrow.ts:85](https://github.com/lancedb/lancedb/blob/92179835/node/src/arrow.ts#L85)
+
+___
+
+### schema
+
+• `Optional` **schema**: `Schema`\<`any`\>
+
+#### Defined in
+
+[arrow.ts:63](https://github.com/lancedb/lancedb/blob/92179835/node/src/arrow.ts#L63)
+
+___
+
+### vectorColumns
+
+• **vectorColumns**: `Record`\<`string`, `VectorColumnOptions`\>
+
+#### Defined in
+
+[arrow.ts:81](https://github.com/lancedb/lancedb/blob/92179835/node/src/arrow.ts#L81)

docs/src/javascript/classes/OpenAIEmbeddingFunction.md

@@ -40,7 +40,7 @@ An embedding function that automatically creates vector representation for a giv
 
 #### Defined in
 
-[embedding/openai.ts:21](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/embedding/openai.ts#L21)
+[embedding/openai.ts:22](https://github.com/lancedb/lancedb/blob/92179835/node/src/embedding/openai.ts#L22)
 
 ## Properties
 
@@ -50,17 +50,17 @@ An embedding function that automatically creates vector representation for a giv
 
 #### Defined in
 
-[embedding/openai.ts:19](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/embedding/openai.ts#L19)
+[embedding/openai.ts:20](https://github.com/lancedb/lancedb/blob/92179835/node/src/embedding/openai.ts#L20)
 
 ___
 
 ### \_openai
 
-• `Private` `Readonly` **\_openai**: `any`
+• `Private` `Readonly` **\_openai**: `OpenAI`
 
 #### Defined in
 
-[embedding/openai.ts:18](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/embedding/openai.ts#L18)
+[embedding/openai.ts:19](https://github.com/lancedb/lancedb/blob/92179835/node/src/embedding/openai.ts#L19)
 
 ___
 
@@ -76,7 +76,7 @@ The name of the column that will be used as input for the Embedding Function.
 
 #### Defined in
 
-[embedding/openai.ts:50](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/embedding/openai.ts#L50)
+[embedding/openai.ts:56](https://github.com/lancedb/lancedb/blob/92179835/node/src/embedding/openai.ts#L56)
 
 ## Methods
 
@@ -102,4 +102,4 @@ Creates a vector representation for the given values.
 
 #### Defined in
 
-[embedding/openai.ts:38](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/embedding/openai.ts#L38)
+[embedding/openai.ts:43](https://github.com/lancedb/lancedb/blob/92179835/node/src/embedding/openai.ts#L43)

docs/src/javascript/classes/Query.md

@@ -19,6 +19,7 @@ A builder for nearest neighbor queries for LanceDB.
 ### Properties
 
 - [\_embeddings](Query.md#_embeddings)
+- [\_fastSearch](Query.md#_fastsearch)
 - [\_filter](Query.md#_filter)
 - [\_limit](Query.md#_limit)
 - [\_metricType](Query.md#_metrictype)
@@ -34,6 +35,7 @@ A builder for nearest neighbor queries for LanceDB.
 ### Methods
 
 - [execute](Query.md#execute)
+- [fastSearch](Query.md#fastsearch)
 - [filter](Query.md#filter)
 - [isElectron](Query.md#iselectron)
 - [limit](Query.md#limit)
@@ -65,7 +67,7 @@ A builder for nearest neighbor queries for LanceDB.
 
 #### Defined in
 
-[query.ts:38](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L38)
+[query.ts:39](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L39)
 
 ## Properties
 
@@ -75,7 +77,17 @@ A builder for nearest neighbor queries for LanceDB.
 
 #### Defined in
 
-[query.ts:36](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L36)
+[query.ts:37](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L37)
+
+___
+
+### \_fastSearch
+
+• `Private` **\_fastSearch**: `boolean`
+
+#### Defined in
+
+[query.ts:36](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L36)
 
 ___
 
@@ -85,7 +97,7 @@ ___
 
 #### Defined in
 
-[query.ts:33](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L33)
+[query.ts:33](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L33)
 
 ___
 
@@ -95,7 +107,7 @@ ___
 
 #### Defined in
 
-[query.ts:29](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L29)
+[query.ts:29](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L29)
 
 ___
 
@@ -105,7 +117,7 @@ ___
 
 #### Defined in
 
-[query.ts:34](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L34)
+[query.ts:34](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L34)
 
 ___
 
@@ -115,7 +127,7 @@ ___
 
 #### Defined in
 
-[query.ts:31](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L31)
+[query.ts:31](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L31)
 
 ___
 
@@ -125,7 +137,7 @@ ___
 
 #### Defined in
 
-[query.ts:35](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L35)
+[query.ts:35](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L35)
 
 ___
 
@@ -135,7 +147,7 @@ ___
 
 #### Defined in
 
-[query.ts:26](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L26)
+[query.ts:26](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L26)
 
 ___
 
@@ -145,7 +157,7 @@ ___
 
 #### Defined in
 
-[query.ts:28](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L28)
+[query.ts:28](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L28)
 
 ___
 
@@ -155,7 +167,7 @@ ___
 
 #### Defined in
 
-[query.ts:30](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L30)
+[query.ts:30](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L30)
 
 ___
 
@@ -165,7 +177,7 @@ ___
 
 #### Defined in
 
-[query.ts:32](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L32)
+[query.ts:32](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L32)
 
 ___
 
@@ -175,7 +187,7 @@ ___
 
 #### Defined in
 
-[query.ts:27](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L27)
+[query.ts:27](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L27)
 
 ___
 
@@ -201,7 +213,7 @@ A filter statement to be applied to this query.
 
 #### Defined in
 
-[query.ts:87](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L87)
+[query.ts:90](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L90)
 
 ## Methods
 
@@ -223,7 +235,30 @@ Execute the query and return the results as an Array of Objects
 
 #### Defined in
 
-[query.ts:115](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L115)
+[query.ts:127](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L127)
+
+___
+
+### fastSearch
+
+▸ **fastSearch**(`value`): [`Query`](Query.md)\<`T`\>
+
+Skip searching un-indexed data. This can make search faster, but will miss
+any data that is not yet indexed.
+
+#### Parameters
+
+| Name | Type |
+| :------ | :------ |
+| `value` | `boolean` |
+
+#### Returns
+
+[`Query`](Query.md)\<`T`\>
+
+#### Defined in
+
+[query.ts:119](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L119)
 
 ___
 
@@ -245,7 +280,7 @@ A filter statement to be applied to this query.
 
 #### Defined in
 
-[query.ts:82](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L82)
+[query.ts:85](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L85)
 
 ___
 
@@ -259,7 +294,7 @@ ___
 
 #### Defined in
 
-[query.ts:142](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L142)
+[query.ts:155](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L155)
 
 ___
 
@@ -268,6 +303,7 @@ ___
 ▸ **limit**(`value`): [`Query`](Query.md)\<`T`\>
 
 Sets the number of results that will be returned
+default value is 10
 
 #### Parameters
 
@@ -281,7 +317,7 @@ Sets the number of results that will be returned
 
 #### Defined in
 
-[query.ts:55](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L55)
+[query.ts:58](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L58)
 
 ___
 
@@ -307,7 +343,7 @@ MetricType for the different options
 
 #### Defined in
 
-[query.ts:102](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L102)
+[query.ts:105](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L105)
 
 ___
 
@@ -329,7 +365,7 @@ The number of probes used. A higher number makes search more accurate but also s
 
 #### Defined in
 
-[query.ts:73](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L73)
+[query.ts:76](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L76)
 
 ___
 
@@ -349,7 +385,7 @@ ___
 
 #### Defined in
 
-[query.ts:107](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L107)
+[query.ts:110](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L110)
 
 ___
 
@@ -371,7 +407,7 @@ Refine the results by reading extra elements and re-ranking them in memory.
 
 #### Defined in
 
-[query.ts:64](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L64)
+[query.ts:67](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L67)
 
 ___
 
@@ -393,4 +429,4 @@ Return only the specified columns.
 
 #### Defined in
 
-[query.ts:93](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/query.ts#L93)
+[query.ts:96](https://github.com/lancedb/lancedb/blob/92179835/node/src/query.ts#L96)

docs/src/javascript/enums/IndexStatus.md

@@ -0,0 +1,52 @@
+[vectordb](../README.md) / [Exports](../modules.md) / IndexStatus
+
+# Enumeration: IndexStatus
+
+## Table of contents
+
+### Enumeration Members
+
+- [Done](IndexStatus.md#done)
+- [Failed](IndexStatus.md#failed)
+- [Indexing](IndexStatus.md#indexing)
+- [Pending](IndexStatus.md#pending)
+
+## Enumeration Members
+
+### Done
+
+• **Done** = ``"done"``
+
+#### Defined in
+
+[index.ts:713](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L713)
+
+___
+
+### Failed
+
+• **Failed** = ``"failed"``
+
+#### Defined in
+
+[index.ts:714](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L714)
+
+___
+
+### Indexing
+
+• **Indexing** = ``"indexing"``
+
+#### Defined in
+
+[index.ts:712](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L712)
+
+___
+
+### Pending
+
+• **Pending** = ``"pending"``
+
+#### Defined in
+
+[index.ts:711](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L711)

docs/src/javascript/enums/MetricType.md

@@ -22,7 +22,7 @@ Cosine distance
 
 #### Defined in
 
-[index.ts:1041](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L1041)
+[index.ts:1381](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1381)
 
 ___
 
@@ -34,7 +34,7 @@ Dot product
 
 #### Defined in
 
-[index.ts:1046](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L1046)
+[index.ts:1386](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1386)
 
 ___
 
@@ -46,4 +46,4 @@ Euclidean distance
 
 #### Defined in
 
-[index.ts:1036](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L1036)
+[index.ts:1376](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1376)

docs/src/javascript/enums/WriteMode.md

@@ -22,7 +22,7 @@ Append new data to the table.
 
 #### Defined in
 
-[index.ts:1007](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L1007)
+[index.ts:1347](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1347)
 
 ___
 
@@ -34,7 +34,7 @@ Create a new [Table](../interfaces/Table.md).
 
 #### Defined in
 
-[index.ts:1003](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L1003)
+[index.ts:1343](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1343)
 
 ___
 
@@ -46,4 +46,4 @@ Overwrite the existing [Table](../interfaces/Table.md) if presented.
 
 #### Defined in
 
-[index.ts:1005](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L1005)
+[index.ts:1345](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1345)

docs/src/javascript/interfaces/AwsCredentials.md

@@ -18,7 +18,7 @@
 
 #### Defined in
 
-[index.ts:54](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L54)
+[index.ts:68](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L68)
 
 ___
 
@@ -28,7 +28,7 @@ ___
 
 #### Defined in
 
-[index.ts:56](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L56)
+[index.ts:70](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L70)
 
 ___
 
@@ -38,4 +38,4 @@ ___
 
 #### Defined in
 
-[index.ts:58](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L58)
+[index.ts:72](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L72)

docs/src/javascript/interfaces/CleanupStats.md

@@ -19,7 +19,7 @@ The number of bytes removed from disk.
 
 #### Defined in
 
-[index.ts:878](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L878)
+[index.ts:1218](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1218)
 
 ___
 
@@ -31,4 +31,4 @@ The number of old table versions removed.
 
 #### Defined in
 
-[index.ts:882](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L882)
+[index.ts:1222](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1222)

docs/src/javascript/interfaces/ColumnAlteration.md

@@ -0,0 +1,53 @@
+[vectordb](../README.md) / [Exports](../modules.md) / ColumnAlteration
+
+# Interface: ColumnAlteration
+
+A definition of a column alteration. The alteration changes the column at
+`path` to have the new name `name`, to be nullable if `nullable` is true,
+and to have the data type `data_type`. At least one of `rename` or `nullable`
+must be provided.
+
+## Table of contents
+
+### Properties
+
+- [nullable](ColumnAlteration.md#nullable)
+- [path](ColumnAlteration.md#path)
+- [rename](ColumnAlteration.md#rename)
+
+## Properties
+
+### nullable
+
+• `Optional` **nullable**: `boolean`
+
+Set the new nullability. Note that a nullable column cannot be made non-nullable.
+
+#### Defined in
+
+[index.ts:638](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L638)
+
+___
+
+### path
+
+• **path**: `string`
+
+The path to the column to alter. This is a dot-separated path to the column.
+If it is a top-level column then it is just the name of the column. If it is
+a nested column then it is the path to the column, e.g. "a.b.c" for a column
+`c` nested inside a column `b` nested inside a column `a`.
+
+#### Defined in
+
+[index.ts:633](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L633)
+
+___
+
+### rename
+
+• `Optional` **rename**: `string`
+
+#### Defined in
+
+[index.ts:634](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L634)

docs/src/javascript/interfaces/CompactionMetrics.md

@@ -22,7 +22,7 @@ fragments added.
 
 #### Defined in
 
-[index.ts:933](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L933)
+[index.ts:1273](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1273)
 
 ___
 
@@ -35,7 +35,7 @@ file.
 
 #### Defined in
 
-[index.ts:928](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L928)
+[index.ts:1268](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1268)
 
 ___
 
@@ -47,7 +47,7 @@ The number of new fragments that were created.
 
 #### Defined in
 
-[index.ts:923](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L923)
+[index.ts:1263](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1263)
 
 ___
 
@@ -59,4 +59,4 @@ The number of fragments that were removed.
 
 #### Defined in
 
-[index.ts:919](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L919)
+[index.ts:1259](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1259)

docs/src/javascript/interfaces/CompactionOptions.md

@@ -24,7 +24,7 @@ Default is true.
 
 #### Defined in
 
-[index.ts:901](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L901)
+[index.ts:1241](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1241)
 
 ___
 
@@ -38,7 +38,7 @@ the deleted rows. Default is 10%.
 
 #### Defined in
 
-[index.ts:907](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L907)
+[index.ts:1247](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1247)
 
 ___
 
@@ -46,11 +46,11 @@ ___
 
 • `Optional` **maxRowsPerGroup**: `number`
 
-The maximum number of rows per group. Defaults to 1024.
+The maximum number of T per group. Defaults to 1024.
 
 #### Defined in
 
-[index.ts:895](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L895)
+[index.ts:1235](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1235)
 
 ___
 
@@ -63,7 +63,7 @@ the number of cores on the machine.
 
 #### Defined in
 
-[index.ts:912](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L912)
+[index.ts:1252](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1252)
 
 ___
 
@@ -77,4 +77,4 @@ Defaults to 1024 * 1024.
 
 #### Defined in
 
-[index.ts:891](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L891)
+[index.ts:1231](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1231)

docs/src/javascript/interfaces/Connection.md

@@ -22,6 +22,7 @@ Connection could be local against filesystem or remote against a server.
 - [dropTable](Connection.md#droptable)
 - [openTable](Connection.md#opentable)
 - [tableNames](Connection.md#tablenames)
+- [withMiddleware](Connection.md#withmiddleware)
 
 ## Properties
 
@@ -31,7 +32,7 @@ Connection could be local against filesystem or remote against a server.
 
 #### Defined in
 
-[index.ts:183](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L183)
+[index.ts:261](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L261)
 
 ## Methods
 
@@ -59,7 +60,7 @@ Creates a new Table, optionally initializing it with new data.
 
 #### Defined in
 
-[index.ts:207](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L207)
+[index.ts:285](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L285)
 
 ▸ **createTable**(`name`, `data`): `Promise`\<[`Table`](Table.md)\<`number`[]\>\>
 
@@ -70,7 +71,7 @@ Creates a new Table and initialize it with new data.
 | Name | Type | Description |
 | :------ | :------ | :------ |
 | `name` | `string` | The name of the table. |
-| `data` | `Record`\<`string`, `unknown`\>[] | Non-empty Array of Records to be inserted into the table |
+| `data` | `Table`\<`any`\> \| `Record`\<`string`, `unknown`\>[] | Non-empty Array of Records to be inserted into the table |
 
 #### Returns
 
@@ -78,7 +79,7 @@ Creates a new Table and initialize it with new data.
 
 #### Defined in
 
-[index.ts:221](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L221)
+[index.ts:299](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L299)
 
 ▸ **createTable**(`name`, `data`, `options`): `Promise`\<[`Table`](Table.md)\<`number`[]\>\>
 
@@ -89,7 +90,7 @@ Creates a new Table and initialize it with new data.
 | Name | Type | Description |
 | :------ | :------ | :------ |
 | `name` | `string` | The name of the table. |
-| `data` | `Record`\<`string`, `unknown`\>[] | Non-empty Array of Records to be inserted into the table |
+| `data` | `Table`\<`any`\> \| `Record`\<`string`, `unknown`\>[] | Non-empty Array of Records to be inserted into the table |
 | `options` | [`WriteOptions`](WriteOptions.md) | The write options to use when creating the table. |
 
 #### Returns
@@ -98,7 +99,7 @@ Creates a new Table and initialize it with new data.
 
 #### Defined in
 
-[index.ts:233](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L233)
+[index.ts:311](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L311)
 
 ▸ **createTable**\<`T`\>(`name`, `data`, `embeddings`): `Promise`\<[`Table`](Table.md)\<`T`\>\>
 
@@ -115,7 +116,7 @@ Creates a new Table and initialize it with new data.
 | Name | Type | Description |
 | :------ | :------ | :------ |
 | `name` | `string` | The name of the table. |
-| `data` | `Record`\<`string`, `unknown`\>[] | Non-empty Array of Records to be inserted into the table |
+| `data` | `Table`\<`any`\> \| `Record`\<`string`, `unknown`\>[] | Non-empty Array of Records to be inserted into the table |
 | `embeddings` | [`EmbeddingFunction`](EmbeddingFunction.md)\<`T`\> | An embedding function to use on this table |
 
 #### Returns
@@ -124,7 +125,7 @@ Creates a new Table and initialize it with new data.
 
 #### Defined in
 
-[index.ts:246](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L246)
+[index.ts:324](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L324)
 
 ▸ **createTable**\<`T`\>(`name`, `data`, `embeddings`, `options`): `Promise`\<[`Table`](Table.md)\<`T`\>\>
 
@@ -141,7 +142,7 @@ Creates a new Table and initialize it with new data.
 | Name | Type | Description |
 | :------ | :------ | :------ |
 | `name` | `string` | The name of the table. |
-| `data` | `Record`\<`string`, `unknown`\>[] | Non-empty Array of Records to be inserted into the table |
+| `data` | `Table`\<`any`\> \| `Record`\<`string`, `unknown`\>[] | Non-empty Array of Records to be inserted into the table |
 | `embeddings` | [`EmbeddingFunction`](EmbeddingFunction.md)\<`T`\> | An embedding function to use on this table |
 | `options` | [`WriteOptions`](WriteOptions.md) | The write options to use when creating the table. |
 
@@ -151,7 +152,7 @@ Creates a new Table and initialize it with new data.
 
 #### Defined in
 
-[index.ts:259](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L259)
+[index.ts:337](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L337)
 
 ___
 
@@ -173,7 +174,7 @@ Drop an existing table.
 
 #### Defined in
 
-[index.ts:270](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L270)
+[index.ts:348](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L348)
 
 ___
 
@@ -202,7 +203,7 @@ Open a table in the database.
 
 #### Defined in
 
-[index.ts:193](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L193)
+[index.ts:271](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L271)
 
 ___
 
@@ -216,4 +217,32 @@ ___
 
 #### Defined in
 
-[index.ts:185](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L185)
+[index.ts:263](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L263)
+
+___
+
+### withMiddleware
+
+▸ **withMiddleware**(`middleware`): [`Connection`](Connection.md)
+
+Instrument the behavior of this Connection with middleware.
+
+The middleware will be called in the order they are added.
+
+Currently this functionality is only supported for remote Connections.
+
+#### Parameters
+
+| Name | Type |
+| :------ | :------ |
+| `middleware` | `HttpMiddleware` |
+
+#### Returns
+
+[`Connection`](Connection.md)
+
+- this Connection instrumented by the passed middleware
+
+#### Defined in
+
+[index.ts:360](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L360)

docs/src/javascript/interfaces/ConnectionOptions.md

@@ -10,7 +10,10 @@
 - [awsCredentials](ConnectionOptions.md#awscredentials)
 - [awsRegion](ConnectionOptions.md#awsregion)
 - [hostOverride](ConnectionOptions.md#hostoverride)
+- [readConsistencyInterval](ConnectionOptions.md#readconsistencyinterval)
 - [region](ConnectionOptions.md#region)
+- [storageOptions](ConnectionOptions.md#storageoptions)
+- [timeout](ConnectionOptions.md#timeout)
 - [uri](ConnectionOptions.md#uri)
 
 ## Properties
@@ -19,9 +22,13 @@
 
 • `Optional` **apiKey**: `string`
 
+API key for the remote connections
+
+Can also be passed by setting environment variable `LANCEDB_API_KEY`
+
 #### Defined in
 
-[index.ts:81](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L81)
+[index.ts:112](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L112)
 
 ___
 
@@ -33,9 +40,14 @@ User provided AWS crednetials.
 
 If not provided, LanceDB will use the default credentials provider chain.
 
+**`Deprecated`**
+
+Pass `aws_access_key_id`, `aws_secret_access_key`, and `aws_session_token`
+through `storageOptions` instead.
+
 #### Defined in
 
-[index.ts:75](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L75)
+[index.ts:92](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L92)
 
 ___
 
@@ -43,11 +55,15 @@ ___
 
 • `Optional` **awsRegion**: `string`
 
-AWS region to connect to. Default is defaultAwsRegion.
+AWS region to connect to. Default is defaultAwsRegion
+
+**`Deprecated`**
+
+Pass `region` through `storageOptions` instead.
 
 #### Defined in
 
-[index.ts:78](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L78)
+[index.ts:98](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L98)
 
 ___
 
@@ -55,13 +71,33 @@ ___
 
 • `Optional` **hostOverride**: `string`
 
-Override the host URL for the remote connections.
+Override the host URL for the remote connection.
 
 This is useful for local testing.
 
 #### Defined in
 
-[index.ts:91](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L91)
+[index.ts:122](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L122)
+
+___
+
+### readConsistencyInterval
+
+• `Optional` **readConsistencyInterval**: `number`
+
+(For LanceDB OSS only): The interval, in seconds, at which to check for
+updates to the table from other processes. If None, then consistency is not
+checked. For performance reasons, this is the default. For strong
+consistency, set this to zero seconds. Then every read will check for
+updates from other processes. As a compromise, you can set this to a
+non-zero value for eventual consistency. If more than that interval
+has passed since the last check, then the table will be checked for updates.
+Note: this consistency only applies to read operations. Write operations are
+always consistent.
+
+#### Defined in
+
+[index.ts:140](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L140)
 
 ___
 
@@ -69,11 +105,37 @@ ___
 
 • `Optional` **region**: `string`
 
-Region to connect
+Region to connect. Default is 'us-east-1'
 
 #### Defined in
 
-[index.ts:84](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L84)
+[index.ts:115](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L115)
+
+___
+
+### storageOptions
+
+• `Optional` **storageOptions**: `Record`\<`string`, `string`\>
+
+User provided options for object storage. For example, S3 credentials or request timeouts.
+
+The various options are described at https://lancedb.github.io/lancedb/guides/storage/
+
+#### Defined in
+
+[index.ts:105](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L105)
+
+___
+
+### timeout
+
+• `Optional` **timeout**: `number`
+
+Duration in milliseconds for request timeout. Default = 10,000 (10 seconds)
+
+#### Defined in
+
+[index.ts:127](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L127)
 
 ___
 
@@ -85,8 +147,8 @@ LanceDB database URI.
 
 - `/path/to/database` - local database
 - `s3://bucket/path/to/database` or `gs://bucket/path/to/database` - database on cloud storage
-- `db://host:port` - remote database (SaaS)
+- `db://host:port` - remote database (LanceDB cloud)
 
 #### Defined in
 
-[index.ts:69](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L69)
+[index.ts:83](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L83)

docs/src/javascript/interfaces/CreateTableOptions.md

@@ -26,7 +26,7 @@
 
 #### Defined in
 
-[index.ts:116](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L116)
+[index.ts:163](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L163)
 
 ___
 
@@ -36,7 +36,7 @@ ___
 
 #### Defined in
 
-[index.ts:122](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L122)
+[index.ts:169](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L169)
 
 ___
 
@@ -46,7 +46,7 @@ ___
 
 #### Defined in
 
-[index.ts:113](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L113)
+[index.ts:160](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L160)
 
 ___
 
@@ -56,7 +56,7 @@ ___
 
 #### Defined in
 
-[index.ts:119](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L119)
+[index.ts:166](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L166)
 
 ___
 
@@ -66,4 +66,4 @@ ___
 
 #### Defined in
 
-[index.ts:125](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L125)
+[index.ts:172](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L172)

docs/src/javascript/interfaces/EmbeddingFunction.md

@@ -18,11 +18,29 @@ An embedding function that automatically creates vector representation for a giv
 
 ### Properties
 
+- [destColumn](EmbeddingFunction.md#destcolumn)
 - [embed](EmbeddingFunction.md#embed)
+- [embeddingDataType](EmbeddingFunction.md#embeddingdatatype)
+- [embeddingDimension](EmbeddingFunction.md#embeddingdimension)
+- [excludeSource](EmbeddingFunction.md#excludesource)
 - [sourceColumn](EmbeddingFunction.md#sourcecolumn)
 
 ## Properties
 
+### destColumn
+
+• `Optional` **destColumn**: `string`
+
+The name of the column that will contain the embedding
+
+By default this is "vector"
+
+#### Defined in
+
+[embedding/embedding_function.ts:49](https://github.com/lancedb/lancedb/blob/92179835/node/src/embedding/embedding_function.ts#L49)
+
+___
+
 ### embed
 
 • **embed**: (`data`: `T`[]) => `Promise`\<`number`[][]\>
@@ -45,7 +63,54 @@ Creates a vector representation for the given values.
 
 #### Defined in
 
-[embedding/embedding_function.ts:27](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/embedding/embedding_function.ts#L27)
+[embedding/embedding_function.ts:62](https://github.com/lancedb/lancedb/blob/92179835/node/src/embedding/embedding_function.ts#L62)
+
+___
+
+### embeddingDataType
+
+• `Optional` **embeddingDataType**: `Float`\<`Floats`\>
+
+The data type of the embedding
+
+The embedding function should return `number`.  This will be converted into
+an Arrow float array.  By default this will be Float32 but this property can
+be used to control the conversion.
+
+#### Defined in
+
+[embedding/embedding_function.ts:33](https://github.com/lancedb/lancedb/blob/92179835/node/src/embedding/embedding_function.ts#L33)
+
+___
+
+### embeddingDimension
+
+• `Optional` **embeddingDimension**: `number`
+
+The dimension of the embedding
+
+This is optional, normally this can be determined by looking at the results of
+`embed`.  If this is not specified, and there is an attempt to apply the embedding
+to an empty table, then that process will fail.
+
+#### Defined in
+
+[embedding/embedding_function.ts:42](https://github.com/lancedb/lancedb/blob/92179835/node/src/embedding/embedding_function.ts#L42)
+
+___
+
+### excludeSource
+
+• `Optional` **excludeSource**: `boolean`
+
+Should the source column be excluded from the resulting table
+
+By default the source column is included.  Set this to true and
+only the embedding will be stored.
+
+#### Defined in
+
+[embedding/embedding_function.ts:57](https://github.com/lancedb/lancedb/blob/92179835/node/src/embedding/embedding_function.ts#L57)
 
 ___
 
@@ -57,4 +122,4 @@ The name of the column that will be used as input for the Embedding Function.
 
 #### Defined in
 
-[embedding/embedding_function.ts:22](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/embedding/embedding_function.ts#L22)
+[embedding/embedding_function.ts:24](https://github.com/lancedb/lancedb/blob/92179835/node/src/embedding/embedding_function.ts#L24)

docs/src/javascript/interfaces/IndexStats.md

@@ -6,18 +6,51 @@
 
 ### Properties
 
+- [distanceType](IndexStats.md#distancetype)
+- [indexType](IndexStats.md#indextype)
 - [numIndexedRows](IndexStats.md#numindexedrows)
+- [numIndices](IndexStats.md#numindices)
 - [numUnindexedRows](IndexStats.md#numunindexedrows)
 
 ## Properties
 
+### distanceType
+
+• `Optional` **distanceType**: `string`
+
+#### Defined in
+
+[index.ts:728](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L728)
+
+___
+
+### indexType
+
+• **indexType**: `string`
+
+#### Defined in
+
+[index.ts:727](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L727)
+
+___
+
 ### numIndexedRows
 
 • **numIndexedRows**: ``null`` \| `number`
 
 #### Defined in
 
-[index.ts:478](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L478)
+[index.ts:725](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L725)
+
+___
+
+### numIndices
+
+• `Optional` **numIndices**: `number`
+
+#### Defined in
+
+[index.ts:729](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L729)
 
 ___
 
@@ -27,4 +60,4 @@ ___
 
 #### Defined in
 
-[index.ts:479](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L479)
+[index.ts:726](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L726)

docs/src/javascript/interfaces/IvfPQIndexConfig.md

@@ -29,7 +29,7 @@ The column to be indexed
 
 #### Defined in
 
-[index.ts:942](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L942)
+[index.ts:1282](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1282)
 
 ___
 
@@ -41,7 +41,7 @@ Cache size of the index
 
 #### Defined in
 
-[index.ts:991](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L991)
+[index.ts:1331](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1331)
 
 ___
 
@@ -53,7 +53,7 @@ A unique name for the index
 
 #### Defined in
 
-[index.ts:947](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L947)
+[index.ts:1287](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1287)
 
 ___
 
@@ -65,7 +65,7 @@ The max number of iterations for kmeans training.
 
 #### Defined in
 
-[index.ts:962](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L962)
+[index.ts:1302](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1302)
 
 ___
 
@@ -77,7 +77,7 @@ Max number of iterations to train OPQ, if `use_opq` is true.
 
 #### Defined in
 
-[index.ts:981](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L981)
+[index.ts:1321](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1321)
 
 ___
 
@@ -89,7 +89,7 @@ Metric type, L2 or Cosine
 
 #### Defined in
 
-[index.ts:952](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L952)
+[index.ts:1292](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1292)
 
 ___
 
@@ -101,7 +101,7 @@ The number of bits to present one PQ centroid.
 
 #### Defined in
 
-[index.ts:976](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L976)
+[index.ts:1316](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1316)
 
 ___
 
@@ -113,7 +113,7 @@ The number of partitions this index
 
 #### Defined in
 
-[index.ts:957](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L957)
+[index.ts:1297](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1297)
 
 ___
 
@@ -125,7 +125,7 @@ Number of subvectors to build PQ code
 
 #### Defined in
 
-[index.ts:972](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L972)
+[index.ts:1312](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1312)
 
 ___
 
@@ -137,7 +137,7 @@ Replace an existing index with the same name if it exists.
 
 #### Defined in
 
-[index.ts:986](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L986)
+[index.ts:1326](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1326)
 
 ___
 
@@ -147,7 +147,7 @@ ___
 
 #### Defined in
 
-[index.ts:993](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L993)
+[index.ts:1333](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1333)
 
 ___
 
@@ -159,4 +159,4 @@ Train as optimized product quantization.
 
 #### Defined in
 
-[index.ts:967](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L967)
+[index.ts:1307](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1307)

docs/src/javascript/interfaces/MergeInsertArgs.md

@@ -0,0 +1,73 @@
+[vectordb](../README.md) / [Exports](../modules.md) / MergeInsertArgs
+
+# Interface: MergeInsertArgs
+
+## Table of contents
+
+### Properties
+
+- [whenMatchedUpdateAll](MergeInsertArgs.md#whenmatchedupdateall)
+- [whenNotMatchedBySourceDelete](MergeInsertArgs.md#whennotmatchedbysourcedelete)
+- [whenNotMatchedInsertAll](MergeInsertArgs.md#whennotmatchedinsertall)
+
+## Properties
+
+### whenMatchedUpdateAll
+
+• `Optional` **whenMatchedUpdateAll**: `string` \| `boolean`
+
+If true then rows that exist in both the source table (new data) and
+the target table (old data) will be updated, replacing the old row
+with the corresponding matching row.
+
+If there are multiple matches then the behavior is undefined.
+Currently this causes multiple copies of the row to be created
+but that behavior is subject to change.
+
+Optionally, a filter can be specified.  This should be an SQL
+filter where fields with the prefix "target." refer to fields
+in the target table (old data) and fields with the prefix
+"source." refer to fields in the source table (new data).  For
+example, the filter "target.lastUpdated < source.lastUpdated" will
+only update matched rows when the incoming `lastUpdated` value is
+newer.
+
+Rows that do not match the filter will not be updated.  Rows that
+do not match the filter do become "not matched" rows.
+
+#### Defined in
+
+[index.ts:690](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L690)
+
+___
+
+### whenNotMatchedBySourceDelete
+
+• `Optional` **whenNotMatchedBySourceDelete**: `string` \| `boolean`
+
+If true then rows that exist only in the target table (old data)
+will be deleted.
+
+If this is a string then it will be treated as an SQL filter and
+only rows that both do not match any row in the source table and
+match the given filter will be deleted.
+
+This can be used to replace a selection of existing data with
+new data.
+
+#### Defined in
+
+[index.ts:707](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L707)
+
+___
+
+### whenNotMatchedInsertAll
+
+• `Optional` **whenNotMatchedInsertAll**: `boolean`
+
+If true then rows that exist only in the source table (new data)
+will be inserted into the target table.
+
+#### Defined in
+
+[index.ts:695](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L695)

docs/src/javascript/interfaces/Table.md

@@ -25,17 +25,26 @@ A LanceDB Table is the collection of Records. Each Record has one or more vector
 - [delete](Table.md#delete)
 - [indexStats](Table.md#indexstats)
 - [listIndices](Table.md#listindices)
+- [mergeInsert](Table.md#mergeinsert)
 - [name](Table.md#name)
 - [overwrite](Table.md#overwrite)
 - [schema](Table.md#schema)
 - [search](Table.md#search)
 - [update](Table.md#update)
 
+### Methods
+
+- [addColumns](Table.md#addcolumns)
+- [alterColumns](Table.md#altercolumns)
+- [dropColumns](Table.md#dropcolumns)
+- [filter](Table.md#filter)
+- [withMiddleware](Table.md#withmiddleware)
+
 ## Properties
 
 ### add
 
-• **add**: (`data`: `Record`\<`string`, `unknown`\>[]) => `Promise`\<`number`\>
+• **add**: (`data`: `Table`\<`any`\> \| `Record`\<`string`, `unknown`\>[]) => `Promise`\<`number`\>
 
 #### Type declaration
 
@@ -47,7 +56,7 @@ Insert records into this Table.
 
 | Name | Type | Description |
 | :------ | :------ | :------ |
-| `data` | `Record`\<`string`, `unknown`\>[] | Records to be inserted into the Table |
+| `data` | `Table`\<`any`\> \| `Record`\<`string`, `unknown`\>[] | Records to be inserted into the Table |
 
 ##### Returns
 
@@ -57,27 +66,33 @@ The number of rows added to the table
 
 #### Defined in
 
-[index.ts:291](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L291)
+[index.ts:381](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L381)
 
 ___
 
 ### countRows
 
-• **countRows**: () => `Promise`\<`number`\>
+• **countRows**: (`filter?`: `string`) => `Promise`\<`number`\>
 
 #### Type declaration
 
-▸ (): `Promise`\<`number`\>
+▸ (`filter?`): `Promise`\<`number`\>
 
 Returns the number of rows in this table.
 
+##### Parameters
+
+| Name | Type |
+| :------ | :------ |
+| `filter?` | `string` |
+
 ##### Returns
 
 `Promise`\<`number`\>
 
 #### Defined in
 
-[index.ts:361](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L361)
+[index.ts:454](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L454)
 
 ___
 
@@ -107,17 +122,17 @@ VectorIndexParams.
 
 #### Defined in
 
-[index.ts:306](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L306)
+[index.ts:398](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L398)
 
 ___
 
 ### createScalarIndex
 
-• **createScalarIndex**: (`column`: `string`, `replace`: `boolean`) => `Promise`\<`void`\>
+• **createScalarIndex**: (`column`: `string`, `replace?`: `boolean`) => `Promise`\<`void`\>
 
 #### Type declaration
 
-▸ (`column`, `replace`): `Promise`\<`void`\>
+▸ (`column`, `replace?`): `Promise`\<`void`\>
 
 Create a scalar index on this Table for the given column
 
@@ -126,7 +141,7 @@ Create a scalar index on this Table for the given column
 | Name | Type | Description |
 | :------ | :------ | :------ |
 | `column` | `string` | The column to index |
-| `replace` | `boolean` | If false, fail if an index already exists on the column Scalar indices, like vector indices, can be used to speed up scans. A scalar index can speed up scans that contain filter expressions on the indexed column. For example, the following scan will be faster if the column `my_col` has a scalar index: ```ts const con = await lancedb.connect('./.lancedb'); const table = await con.openTable('images'); const results = await table.where('my_col = 7').execute(); ``` Scalar indices can also speed up scans containing a vector search and a prefilter: ```ts const con = await lancedb.connect('././lancedb'); const table = await con.openTable('images'); const results = await table.search([1.0, 2.0]).where('my_col != 7').prefilter(true); ``` Scalar indices can only speed up scans for basic filters using equality, comparison, range (e.g. `my_col BETWEEN 0 AND 100`), and set membership (e.g. `my_col IN (0, 1, 2)`) Scalar indices can be used if the filter contains multiple indexed columns and the filter criteria are AND'd or OR'd together (e.g. `my_col < 0 AND other_col> 100`) Scalar indices may be used if the filter contains non-indexed columns but, depending on the structure of the filter, they may not be usable. For example, if the column `not_indexed` does not have a scalar index then the filter `my_col = 0 OR not_indexed = 1` will not be able to use any scalar index on `my_col`. |
+| `replace?` | `boolean` | If false, fail if an index already exists on the column it is always set to true for remote connections Scalar indices, like vector indices, can be used to speed up scans. A scalar index can speed up scans that contain filter expressions on the indexed column. For example, the following scan will be faster if the column `my_col` has a scalar index: ```ts const con = await lancedb.connect('./.lancedb'); const table = await con.openTable('images'); const results = await table.where('my_col = 7').execute(); ``` Scalar indices can also speed up scans containing a vector search and a prefilter: ```ts const con = await lancedb.connect('././lancedb'); const table = await con.openTable('images'); const results = await table.search([1.0, 2.0]).where('my_col != 7').prefilter(true); ``` Scalar indices can only speed up scans for basic filters using equality, comparison, range (e.g. `my_col BETWEEN 0 AND 100`), and set membership (e.g. `my_col IN (0, 1, 2)`) Scalar indices can be used if the filter contains multiple indexed columns and the filter criteria are AND'd or OR'd together (e.g. `my_col < 0 AND other_col> 100`) Scalar indices may be used if the filter contains non-indexed columns but, depending on the structure of the filter, they may not be usable. For example, if the column `not_indexed` does not have a scalar index then the filter `my_col = 0 OR not_indexed = 1` will not be able to use any scalar index on `my_col`. |
 
 ##### Returns
 
@@ -142,7 +157,7 @@ await table.createScalarIndex('my_col')
 
 #### Defined in
 
-[index.ts:356](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L356)
+[index.ts:449](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L449)
 
 ___
 
@@ -194,17 +209,17 @@ await tbl.countRows() // Returns 1
 
 #### Defined in
 
-[index.ts:395](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L395)
+[index.ts:488](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L488)
 
 ___
 
 ### indexStats
 
-• **indexStats**: (`indexUuid`: `string`) => `Promise`\<[`IndexStats`](IndexStats.md)\>
+• **indexStats**: (`indexName`: `string`) => `Promise`\<[`IndexStats`](IndexStats.md)\>
 
 #### Type declaration
 
-▸ (`indexUuid`): `Promise`\<[`IndexStats`](IndexStats.md)\>
+▸ (`indexName`): `Promise`\<[`IndexStats`](IndexStats.md)\>
 
 Get statistics about an index.
 
@@ -212,7 +227,7 @@ Get statistics about an index.
 
 | Name | Type |
 | :------ | :------ |
-| `indexUuid` | `string` |
+| `indexName` | `string` |
 
 ##### Returns
 
@@ -220,7 +235,7 @@ Get statistics about an index.
 
 #### Defined in
 
-[index.ts:438](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L438)
+[index.ts:567](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L567)
 
 ___
 
@@ -240,7 +255,57 @@ List the indicies on this table.
 
 #### Defined in
 
-[index.ts:433](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L433)
+[index.ts:562](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L562)
+
+___
+
+### mergeInsert
+
+• **mergeInsert**: (`on`: `string`, `data`: `Table`\<`any`\> \| `Record`\<`string`, `unknown`\>[], `args`: [`MergeInsertArgs`](MergeInsertArgs.md)) => `Promise`\<`void`\>
+
+#### Type declaration
+
+▸ (`on`, `data`, `args`): `Promise`\<`void`\>
+
+Runs a "merge insert" operation on the table
+
+This operation can add rows, update rows, and remove rows all in a single
+transaction. It is a very generic tool that can be used to create
+behaviors like "insert if not exists", "update or insert (i.e. upsert)",
+or even replace a portion of existing data with new data (e.g. replace
+all data where month="january")
+
+The merge insert operation works by combining new data from a
+**source table** with existing data in a **target table** by using a
+join.  There are three categories of records.
+
+"Matched" records are records that exist in both the source table and
+the target table. "Not matched" records exist only in the source table
+(e.g. these are new data) "Not matched by source" records exist only
+in the target table (this is old data)
+
+The MergeInsertArgs can be used to customize what should happen for
+each category of data.
+
+Please note that the data may appear to be reordered as part of this
+operation.  This is because updated rows will be deleted from the
+dataset and then reinserted at the end with the new values.
+
+##### Parameters
+
+| Name | Type | Description |
+| :------ | :------ | :------ |
+| `on` | `string` | a column to join on. This is how records from the source table and target table are matched. |
+| `data` | `Table`\<`any`\> \| `Record`\<`string`, `unknown`\>[] | the new data to insert |
+| `args` | [`MergeInsertArgs`](MergeInsertArgs.md) | parameters controlling how the operation should behave |
+
+##### Returns
+
+`Promise`\<`void`\>
+
+#### Defined in
+
+[index.ts:553](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L553)
 
 ___
 
@@ -250,13 +315,13 @@ ___
 
 #### Defined in
 
-[index.ts:277](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L277)
+[index.ts:367](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L367)
 
 ___
 
 ### overwrite
 
-• **overwrite**: (`data`: `Record`\<`string`, `unknown`\>[]) => `Promise`\<`number`\>
+• **overwrite**: (`data`: `Table`\<`any`\> \| `Record`\<`string`, `unknown`\>[]) => `Promise`\<`number`\>
 
 #### Type declaration
 
@@ -268,7 +333,7 @@ Insert records into this Table, replacing its contents.
 
 | Name | Type | Description |
 | :------ | :------ | :------ |
-| `data` | `Record`\<`string`, `unknown`\>[] | Records to be inserted into the Table |
+| `data` | `Table`\<`any`\> \| `Record`\<`string`, `unknown`\>[] | Records to be inserted into the Table |
 
 ##### Returns
 
@@ -278,7 +343,7 @@ The number of rows added to the table
 
 #### Defined in
 
-[index.ts:299](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L299)
+[index.ts:389](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L389)
 
 ___
 
@@ -288,7 +353,7 @@ ___
 
 #### Defined in
 
-[index.ts:440](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L440)
+[index.ts:571](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L571)
 
 ___
 
@@ -314,7 +379,7 @@ Creates a search query to find the nearest neighbors of the given search term
 
 #### Defined in
 
-[index.ts:283](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L283)
+[index.ts:373](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L373)
 
 ___
 
@@ -365,4 +430,123 @@ let results = await tbl.search([1, 1]).execute();
 
 #### Defined in
 
-[index.ts:428](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L428)
+[index.ts:521](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L521)
+
+## Methods
+
+### addColumns
+
+▸ **addColumns**(`newColumnTransforms`): `Promise`\<`void`\>
+
+Add new columns with defined values.
+
+#### Parameters
+
+| Name | Type | Description |
+| :------ | :------ | :------ |
+| `newColumnTransforms` | \{ `name`: `string` ; `valueSql`: `string`  }[] | pairs of column names and the SQL expression to use to calculate the value of the new column. These expressions will be evaluated for each row in the table, and can reference existing columns in the table. |
+
+#### Returns
+
+`Promise`\<`void`\>
+
+#### Defined in
+
+[index.ts:582](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L582)
+
+___
+
+### alterColumns
+
+▸ **alterColumns**(`columnAlterations`): `Promise`\<`void`\>
+
+Alter the name or nullability of columns.
+
+#### Parameters
+
+| Name | Type | Description |
+| :------ | :------ | :------ |
+| `columnAlterations` | [`ColumnAlteration`](ColumnAlteration.md)[] | One or more alterations to apply to columns. |
+
+#### Returns
+
+`Promise`\<`void`\>
+
+#### Defined in
+
+[index.ts:591](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L591)
+
+___
+
+### dropColumns
+
+▸ **dropColumns**(`columnNames`): `Promise`\<`void`\>
+
+Drop one or more columns from the dataset
+
+This is a metadata-only operation and does not remove the data from the
+underlying storage. In order to remove the data, you must subsequently
+call ``compact_files`` to rewrite the data without the removed columns and
+then call ``cleanup_files`` to remove the old files.
+
+#### Parameters
+
+| Name | Type | Description |
+| :------ | :------ | :------ |
+| `columnNames` | `string`[] | The names of the columns to drop. These can be nested column references (e.g. "a.b.c") or top-level column names (e.g. "a"). |
+
+#### Returns
+
+`Promise`\<`void`\>
+
+#### Defined in
+
+[index.ts:605](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L605)
+
+___
+
+### filter
+
+▸ **filter**(`value`): [`Query`](../classes/Query.md)\<`T`\>
+
+#### Parameters
+
+| Name | Type |
+| :------ | :------ |
+| `value` | `string` |
+
+#### Returns
+
+[`Query`](../classes/Query.md)\<`T`\>
+
+#### Defined in
+
+[index.ts:569](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L569)
+
+___
+
+### withMiddleware
+
+▸ **withMiddleware**(`middleware`): [`Table`](Table.md)\<`T`\>
+
+Instrument the behavior of this Table with middleware.
+
+The middleware will be called in the order they are added.
+
+Currently this functionality is only supported for remote tables.
+
+#### Parameters
+
+| Name | Type |
+| :------ | :------ |
+| `middleware` | `HttpMiddleware` |
+
+#### Returns
+
+[`Table`](Table.md)\<`T`\>
+
+- this Table instrumented by the passed middleware
+
+#### Defined in
+
+[index.ts:617](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L617)

docs/src/javascript/interfaces/UpdateArgs.md

@@ -20,7 +20,7 @@ new values to set
 
 #### Defined in
 
-[index.ts:454](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L454)
+[index.ts:652](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L652)
 
 ___
 
@@ -33,4 +33,4 @@ in which case all rows will be updated.
 
 #### Defined in
 
-[index.ts:448](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L448)
+[index.ts:646](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L646)

docs/src/javascript/interfaces/UpdateSqlArgs.md

@@ -20,7 +20,7 @@ new values to set as SQL expressions.
 
 #### Defined in
 
-[index.ts:468](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L468)
+[index.ts:666](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L666)
 
 ___
 
@@ -33,4 +33,4 @@ in which case all rows will be updated.
 
 #### Defined in
 
-[index.ts:462](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L462)
+[index.ts:660](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L660)

docs/src/javascript/interfaces/VectorIndex.md

@@ -8,6 +8,7 @@
 
 - [columns](VectorIndex.md#columns)
 - [name](VectorIndex.md#name)
+- [status](VectorIndex.md#status)
 - [uuid](VectorIndex.md#uuid)
 
 ## Properties
@@ -18,7 +19,7 @@
 
 #### Defined in
 
-[index.ts:472](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L472)
+[index.ts:718](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L718)
 
 ___
 
@@ -28,7 +29,17 @@ ___
 
 #### Defined in
 
-[index.ts:473](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L473)
+[index.ts:719](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L719)
+
+___
+
+### status
+
+• **status**: [`IndexStatus`](../enums/IndexStatus.md)
+
+#### Defined in
+
+[index.ts:721](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L721)
 
 ___
 
@@ -38,4 +49,4 @@ ___
 
 #### Defined in
 
-[index.ts:474](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L474)
+[index.ts:720](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L720)

docs/src/javascript/interfaces/WriteOptions.md

@@ -24,4 +24,4 @@ A [WriteMode](../enums/WriteMode.md) to use on this operation
 
 #### Defined in
 
-[index.ts:1015](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L1015)
+[index.ts:1355](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1355)

docs/src/javascript/modules.md

@@ -6,6 +6,7 @@
 
 ### Enumerations
 
+- [IndexStatus](enums/IndexStatus.md)
 - [MetricType](enums/MetricType.md)
 - [WriteMode](enums/WriteMode.md)
 
@@ -14,6 +15,7 @@
 - [DefaultWriteOptions](classes/DefaultWriteOptions.md)
 - [LocalConnection](classes/LocalConnection.md)
 - [LocalTable](classes/LocalTable.md)
+- [MakeArrowTableOptions](classes/MakeArrowTableOptions.md)
 - [OpenAIEmbeddingFunction](classes/OpenAIEmbeddingFunction.md)
 - [Query](classes/Query.md)
 
@@ -21,6 +23,7 @@
 
 - [AwsCredentials](interfaces/AwsCredentials.md)
 - [CleanupStats](interfaces/CleanupStats.md)
+- [ColumnAlteration](interfaces/ColumnAlteration.md)
 - [CompactionMetrics](interfaces/CompactionMetrics.md)
 - [CompactionOptions](interfaces/CompactionOptions.md)
 - [Connection](interfaces/Connection.md)
@@ -29,6 +32,7 @@
 - [EmbeddingFunction](interfaces/EmbeddingFunction.md)
 - [IndexStats](interfaces/IndexStats.md)
 - [IvfPQIndexConfig](interfaces/IvfPQIndexConfig.md)
+- [MergeInsertArgs](interfaces/MergeInsertArgs.md)
 - [Table](interfaces/Table.md)
 - [UpdateArgs](interfaces/UpdateArgs.md)
 - [UpdateSqlArgs](interfaces/UpdateSqlArgs.md)
@@ -42,7 +46,9 @@
 ### Functions
 
 - [connect](modules.md#connect)
+- [convertToTable](modules.md#converttotable)
 - [isWriteOptions](modules.md#iswriteoptions)
+- [makeArrowTable](modules.md#makearrowtable)
 
 ## Type Aliases
 
@@ -52,7 +58,7 @@
 
 #### Defined in
 
-[index.ts:996](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L996)
+[index.ts:1336](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1336)
 
 ## Functions
 
@@ -62,11 +68,11 @@
 
 Connect to a LanceDB instance at the given URI.
 
-Accpeted formats:
+Accepted formats:
 
 - `/path/to/database` - local database
 - `s3://bucket/path/to/database` or `gs://bucket/path/to/database` - database on cloud storage
-- `db://host:port` - remote database (SaaS)
+- `db://host:port` - remote database (LanceDB cloud)
 
 #### Parameters
 
@@ -84,7 +90,7 @@ Accpeted formats:
 
 #### Defined in
 
-[index.ts:141](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L141)
+[index.ts:188](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L188)
 
 ▸ **connect**(`opts`): `Promise`\<[`Connection`](interfaces/Connection.md)\>
 
@@ -102,7 +108,35 @@ Connect to a LanceDB instance with connection options.
 
 #### Defined in
 
-[index.ts:147](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L147)
+[index.ts:194](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L194)
+
+___
+
+### convertToTable
+
+▸ **convertToTable**\<`T`\>(`data`, `embeddings?`, `makeTableOptions?`): `Promise`\<`ArrowTable`\>
+
+#### Type parameters
+
+| Name |
+| :------ |
+| `T` |
+
+#### Parameters
+
+| Name | Type |
+| :------ | :------ |
+| `data` | `Record`\<`string`, `unknown`\>[] |
+| `embeddings?` | [`EmbeddingFunction`](interfaces/EmbeddingFunction.md)\<`T`\> |
+| `makeTableOptions?` | `Partial`\<[`MakeArrowTableOptions`](classes/MakeArrowTableOptions.md)\> |
+
+#### Returns
+
+`Promise`\<`ArrowTable`\>
+
+#### Defined in
+
+[arrow.ts:465](https://github.com/lancedb/lancedb/blob/92179835/node/src/arrow.ts#L465)
 
 ___
 
@@ -122,4 +156,116 @@ value is WriteOptions
 
 #### Defined in
 
-[index.ts:1022](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L1022)
+[index.ts:1362](https://github.com/lancedb/lancedb/blob/92179835/node/src/index.ts#L1362)
+
+___
+
+### makeArrowTable
+
+▸ **makeArrowTable**(`data`, `options?`): `ArrowTable`
+
+An enhanced version of the makeTable function from Apache Arrow
+that supports nested fields and embeddings columns.
+
+This function converts an array of Record<String, any> (row-major JS objects)
+to an Arrow Table (a columnar structure)
+
+Note that it currently does not support nulls.
+
+If a schema is provided then it will be used to determine the resulting array
+types.  Fields will also be reordered to fit the order defined by the schema.
+
+If a schema is not provided then the types will be inferred and the field order
+will be controlled by the order of properties in the first record.
+
+If the input is empty then a schema must be provided to create an empty table.
+
+When a schema is not specified then data types will be inferred.  The inference
+rules are as follows:
+
+ - boolean => Bool
+ - number => Float64
+ - String => Utf8
+ - Buffer => Binary
+ - Record<String, any> => Struct
+ - Array<any> => List
+
+#### Parameters
+
+| Name | Type | Description |
+| :------ | :------ | :------ |
+| `data` | `Record`\<`string`, `any`\>[] | input data |
+| `options?` | `Partial`\<[`MakeArrowTableOptions`](classes/MakeArrowTableOptions.md)\> | options to control the makeArrowTable call. |
+
+#### Returns
+
+`ArrowTable`
+
+**`Example`**
+
+```ts
+
+import { fromTableToBuffer, makeArrowTable } from "../arrow";
+import { Field, FixedSizeList, Float16, Float32, Int32, Schema } from "apache-arrow";
+
+const schema = new Schema([
+  new Field("a", new Int32()),
+  new Field("b", new Float32()),
+  new Field("c", new FixedSizeList(3, new Field("item", new Float16()))),
+ ]);
+ const table = makeArrowTable([
+   { a: 1, b: 2, c: [1, 2, 3] },
+   { a: 4, b: 5, c: [4, 5, 6] },
+   { a: 7, b: 8, c: [7, 8, 9] },
+ ], { schema });
+```
+
+By default it assumes that the column named `vector` is a vector column
+and it will be converted into a fixed size list array of type float32.
+The `vectorColumns` option can be used to support other vector column
+names and data types.
+
+```ts
+
+const schema = new Schema([
+   new Field("a", new Float64()),
+   new Field("b", new Float64()),
+   new Field(
+     "vector",
+     new FixedSizeList(3, new Field("item", new Float32()))
+   ),
+ ]);
+ const table = makeArrowTable([
+   { a: 1, b: 2, vector: [1, 2, 3] },
+   { a: 4, b: 5, vector: [4, 5, 6] },
+   { a: 7, b: 8, vector: [7, 8, 9] },
+ ]);
+ assert.deepEqual(table.schema, schema);
+```
+
+You can specify the vector column types and names using the options as well
+
+```typescript
+
+const schema = new Schema([
+   new Field('a', new Float64()),
+   new Field('b', new Float64()),
+   new Field('vec1', new FixedSizeList(3, new Field('item', new Float16()))),
+   new Field('vec2', new FixedSizeList(3, new Field('item', new Float16())))
+ ]);
+const table = makeArrowTable([
+   { a: 1, b: 2, vec1: [1, 2, 3], vec2: [2, 4, 6] },
+   { a: 4, b: 5, vec1: [4, 5, 6], vec2: [8, 10, 12] },
+   { a: 7, b: 8, vec1: [7, 8, 9], vec2: [14, 16, 18] }
+ ], {
+   vectorColumns: {
+     vec1: { type: new Float16() },
+     vec2: { type: new Float16() }
+   }
+ }
+assert.deepEqual(table.schema, schema)
+```
+
+#### Defined in
+
+[arrow.ts:198](https://github.com/lancedb/lancedb/blob/92179835/node/src/arrow.ts#L198)

docs/src/js/classes/Index.md

@@ -68,3 +68,25 @@ currently is also a memory intensive operation.
 #### Returns
 
 [`Index`](Index.md)
+
+### fts()
+
+> `static` **fts**(`options`?): [`Index`](Index.md)
+
+Create a full text search index
+
+This index is used to search for text data.  The index is created by tokenizing the text
+into words and then storing occurrences of these words in a data structure called inverted index
+that allows for fast search.
+
+During a search the query is tokenized and the inverted index is used to find the rows that
+contain the query words.  The rows are then scored based on BM25 and the top scoring rows are
+sorted and returned.
+
+#### Parameters
+
+• **options?**: `Partial`<[`FtsOptions`](../interfaces/FtsOptions.md)>
+
+#### Returns
+
+[`Index`](Index.md)

docs/src/js/classes/Table.md

@@ -501,16 +501,28 @@ Get the schema of the table.
 
 #### search(query)
 
-> `abstract` **search**(`query`): [`VectorQuery`](VectorQuery.md)
+> `abstract` **search**(`query`, `queryType`, `ftsColumns`): [`VectorQuery`](VectorQuery.md)
 
 Create a search query to find the nearest neighbors
-of the given query vector
+of the given query vector, or the documents
+with the highest relevance to the query string.
 
 ##### Parameters
 
 • **query**: `string`
 
-the query. This will be converted to a vector using the table's provided embedding function
+the query. This will be converted to a vector using the table's provided embedding function,
+or the query string for full-text search if `queryType` is "fts".
+
+• **queryType**: `string` =  `"auto"` \| `"fts"`
+
+the type of query to run. If "auto", the query type will be determined based on the query.
+
+• **ftsColumns**: `string[] | str` =  undefined
+
+the columns to search in. If not provided, all indexed columns will be searched.
+
+For now, this can support to search only one column.
 
 ##### Returns
 

docs/src/js/globals.md

@@ -37,6 +37,7 @@
 - [IndexOptions](interfaces/IndexOptions.md)
 - [IndexStatistics](interfaces/IndexStatistics.md)
 - [IvfPqOptions](interfaces/IvfPqOptions.md)
+- [FtsOptions](interfaces/FtsOptions.md)
 - [TableNamesOptions](interfaces/TableNamesOptions.md)
 - [UpdateOptions](interfaces/UpdateOptions.md)
 - [WriteOptions](interfaces/WriteOptions.md)

docs/src/js/interfaces/FtsOptions.md

@@ -0,0 +1,25 @@
+[**@lancedb/lancedb**](../README.md) • **Docs**
+
+***
+
+[@lancedb/lancedb](../globals.md) / FtsOptions
+
+# Interface: FtsOptions
+
+Options to create an `FTS` index
+
+## Properties
+
+### withPosition?
+
+> `optional` **withPosition**: `boolean`
+
+Whether to store the positions of the term in the document.
+
+If this is true then the index will store the positions of the term in the document.
+This allows phrase queries to be run. But it also increases the size of the index,
+and the time to build the index.
+
+The default value is true.
+
+***

docs/src/rag/adaptive_rag.md

@@ -0,0 +1,51 @@
+**Adaptive RAG 🤹‍♂️**
+====================================================================
+Adaptive RAG introduces a RAG technique that combines query analysis with self-corrective RAG. 
+
+For Query Analysis, it uses a small classifier(LLM), to decide the query’s complexity. Query Analysis helps routing smoothly to adjust between different retrieval strategies No retrieval, Single-shot RAG or Iterative RAG.
+
+**[Official Paper](https://arxiv.org/pdf/2403.14403)**
+
+<figure markdown="span">
+  ![agent-based-rag](https://raw.githubusercontent.com/lancedb/assets/main/docs/assets/rag/adaptive_rag.png)
+  <figcaption>Adaptive-RAG: <a href="https://github.com/starsuzi/Adaptive-RAG">Source</a>
+  </figcaption>
+</figure>
+
+**[Offical Implementation](https://github.com/starsuzi/Adaptive-RAG)**
+
+Here’s a code snippet for query analysis
+
+```python
+from langchain_core.prompts import ChatPromptTemplate
+from langchain_core.pydantic_v1 import BaseModel, Field
+from langchain_openai import ChatOpenAI
+
+class RouteQuery(BaseModel):
+    """Route a user query to the most relevant datasource."""
+
+    datasource: Literal["vectorstore", "web_search"] = Field(
+        ...,
+        description="Given a user question choose to route it to web search or a vectorstore.",
+    )
+
+
+# LLM with function call
+llm = ChatOpenAI(model="gpt-3.5-turbo-0125", temperature=0)
+structured_llm_router = llm.with_structured_output(RouteQuery)
+```
+
+For defining and querying retriever
+
+```python
+# add documents in LanceDB
+vectorstore = LanceDB.from_documents(
+    documents=doc_splits,
+    embedding=OpenAIEmbeddings(),
+)
+retriever = vectorstore.as_retriever()
+
+# query using defined retriever
+question = "How adaptive RAG works"
+docs = retriever.get_relevant_documents(question)
+```

docs/src/rag/advanced_techniques/flare.md

@@ -0,0 +1,38 @@
+**FLARE 💥**
+====================================================================
+FLARE, stands for Forward-Looking Active REtrieval augmented generation is a generic retrieval-augmented generation method that actively decides when and what to retrieve using a prediction of the upcoming sentence to anticipate future content and utilize it as the query to retrieve relevant documents if it contains low-confidence tokens.
+
+**[Official Paper](https://arxiv.org/abs/2305.06983)**
+
+<figure markdown="span">
+  ![flare](https://raw.githubusercontent.com/lancedb/assets/main/docs/assets/rag/flare.gif)
+  <figcaption>FLARE: <a href="https://github.com/jzbjyb/FLARE">Source</a></figcaption>
+</figure>
+
+[![Open In Colab](../../assets/colab.svg)](https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/better-rag-FLAIR/main.ipynb)
+
+Here’s a code snippet for using FLARE with Langchain
+
+```python
+from langchain.vectorstores import LanceDB
+from langchain.document_loaders import ArxivLoader
+from langchain.chains import FlareChain
+from langchain.prompts import PromptTemplate
+from langchain.chains import LLMChain
+from langchain.llms import OpenAI
+
+llm = OpenAI()
+
+# load dataset
+
+# LanceDB retriever
+vector_store = LanceDB.from_documents(doc_chunks, embeddings, connection=table)
+retriever = vector_store.as_retriever()
+
+# define flare chain
+flare = FlareChain.from_llm(llm=llm,retriever=vector_store_retriever,max_generation_len=300,min_prob=0.45)
+
+result = flare.run(input_text)
+```
+
+[![Open In Colab](../../assets/colab.svg)](https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/better-rag-FLAIR/main.ipynb)

docs/src/rag/advanced_techniques/hyde.md

@@ -0,0 +1,55 @@
+**HyDE: Hypothetical Document Embeddings 🤹‍♂️**
+====================================================================
+HyDE, stands for Hypothetical Document Embeddings is an approach used for precise zero-shot dense retrieval without relevance labels. It focuses on augmenting and improving similarity searches, often intertwined with vector stores in information retrieval. The method generates a hypothetical document for an incoming query, which is then embedded and used to look up real documents that are similar to the hypothetical document.
+
+**[Official Paper](https://arxiv.org/pdf/2212.10496)**
+
+<figure markdown="span">
+  ![hyde](https://raw.githubusercontent.com/lancedb/assets/main/docs/assets/rag/hyde.png)
+  <figcaption>HyDE: <a href="https://arxiv.org/pdf/2212.10496">Source</a></figcaption>
+</figure>
+
+[![Open In Colab](../../assets/colab.svg)](https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/Advance-RAG-with-HyDE/main.ipynb)
+
+Here’s a code snippet for using HyDE with Langchain
+
+```python
+from langchain.llms import OpenAI
+from langchain.embeddings import OpenAIEmbeddings
+from langchain.prompts import PromptTemplate
+from langchain.chains import LLMChain, HypotheticalDocumentEmbedder
+from langchain.vectorstores import LanceDB
+
+# set OPENAI_API_KEY as env variable before this step
+# initialize LLM and embedding function
+llm = OpenAI()
+emebeddings = OpenAIEmbeddings()
+
+# HyDE embedding
+embeddings = HypotheticalDocumentEmbedder(llm_chain=llm_chain,base_embeddings=embeddings)
+
+# load dataset
+
+# LanceDB retriever
+retriever = LanceDB.from_documents(documents, embeddings, connection=table)
+
+# prompt template
+prompt_template = """
+As a knowledgeable and helpful research assistant, your task is to provide informative answers based on the given context. Use your extensive knowledge base to offer clear, concise, and accurate responses to the user's inquiries.
+if quetion is not related to documents simply say you dont know
+Question: {question}
+
+Answer:
+"""
+
+prompt = PromptTemplate(input_variables=["question"], template=prompt_template)
+
+# LLM Chain
+llm_chain = LLMChain(llm=llm, prompt=prompt)
+
+# vector search
+retriever.similarity_search(query)
+llm_chain.run(query)
+```
+
+[![Open In Colab](../../assets/colab.svg)](https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/Advance-RAG-with-HyDE/main.ipynb)

docs/src/rag/agentic_rag.md

@@ -0,0 +1,101 @@
+**Agentic RAG 🤖**
+====================================================================
+Agentic RAG is Agent-based RAG introduces an advanced framework for answering questions by using intelligent agents instead of just relying on large language models. These agents act like expert researchers, handling complex tasks such as detailed planning, multi-step reasoning, and using external tools. They navigate multiple documents, compare information, and generate accurate answers. This system is easily scalable, with each new document set managed by a sub-agent, making it a powerful tool for tackling a wide range of information needs.
+
+<figure markdown="span">
+  ![agent-based-rag](https://raw.githubusercontent.com/lancedb/assets/main/docs/assets/rag/agentic_rag.png)
+  <figcaption>Agent-based RAG</figcaption>
+</figure>
+
+[![Open In Colab](../assets/colab.svg)](https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/tutorials/Agentic_RAG/main.ipynb)
+
+Here’s a code snippet for defining retriever using Langchain
+
+```python
+from langchain.text_splitter import RecursiveCharacterTextSplitter
+from langchain_community.document_loaders import WebBaseLoader
+from langchain_community.vectorstores import LanceDB
+from langchain_openai import OpenAIEmbeddings
+
+urls = [
+    "https://content.dgft.gov.in/Website/CIEP.pdf",
+    "https://content.dgft.gov.in/Website/GAE.pdf",
+    "https://content.dgft.gov.in/Website/HTE.pdf",
+]
+
+
+docs = [WebBaseLoader(url).load() for url in urls]
+docs_list = [item for sublist in docs for item in sublist]
+
+text_splitter = RecursiveCharacterTextSplitter.from_tiktoken_encoder(
+    chunk_size=100, chunk_overlap=50
+)
+doc_splits = text_splitter.split_documents(docs_list)
+
+# add documents in LanceDB
+vectorstore = LanceDB.from_documents(
+    documents=doc_splits,
+    embedding=OpenAIEmbeddings(),
+)
+retriever = vectorstore.as_retriever()
+
+```
+
+Agent that formulates an improved query for better retrieval results and then grades the retrieved documents
+
+```python
+def grade_documents(state) -> Literal["generate", "rewrite"]:
+    class grade(BaseModel):
+        binary_score: str = Field(description="Relevance score 'yes' or 'no'")
+
+    model = ChatOpenAI(temperature=0, model="gpt-4-0125-preview", streaming=True)
+    llm_with_tool = model.with_structured_output(grade)
+    prompt = PromptTemplate(
+        template="""You are a grader assessing relevance of a retrieved document to a user question. \n
+        Here is the retrieved document: \n\n {context} \n\n
+        Here is the user question: {question} \n
+        If the document contains keyword(s) or semantic meaning related to the user question, grade it as relevant. \n
+        Give a binary score 'yes' or 'no' score to indicate whether the document is relevant to the question.""",
+        input_variables=["context", "question"],
+    )
+    chain = prompt | llm_with_tool
+
+    messages = state["messages"]
+    last_message = messages[-1]
+    question = messages[0].content
+    docs = last_message.content
+
+    scored_result = chain.invoke({"question": question, "context": docs})
+    score = scored_result.binary_score
+
+    return "generate" if score == "yes" else "rewrite"
+
+
+def agent(state):
+    messages = state["messages"]
+    model = ChatOpenAI(temperature=0, streaming=True, model="gpt-4-turbo")
+    model = model.bind_tools(tools)
+    response = model.invoke(messages)
+    return {"messages": [response]}
+
+
+def rewrite(state):
+    messages = state["messages"]
+    question = messages[0].content
+    msg = [
+        HumanMessage(
+            content=f""" \n
+            Look at the input and try to reason about the underlying semantic intent / meaning. \n
+            Here is the initial question:
+            \n ------- \n
+            {question}
+            \n ------- \n
+            Formulate an improved question: """,
+        )
+    ]
+    model = ChatOpenAI(temperature=0, model="gpt-4-0125-preview", streaming=True)
+    response = model.invoke(msg)
+    return {"messages": [response]}
+```
+
+[![Open In Colab](../assets/colab.svg)](https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/tutorials/Agentic_RAG/main.ipynb)

docs/src/rag/corrective_rag.md

@@ -0,0 +1,120 @@
+**Corrective RAG ✅**
+====================================================================
+
+Corrective-RAG (CRAG) is a strategy for Retrieval-Augmented Generation (RAG) that includes self-reflection and self-grading of retrieved documents. Here’s a simplified breakdown of the steps involved:
+
+1. **Relevance Check**: If at least one document meets the relevance threshold, the process moves forward to the generation phase.
+2. **Knowledge Refinement**: Before generating an answer, the process refines the knowledge by dividing the document into smaller segments called "knowledge strips."
+3. **Grading and Filtering**: Each "knowledge strip" is graded, and irrelevant ones are filtered out.
+4. **Additional Data Source**: If all documents are below the relevance threshold, or if the system is unsure about their relevance, it will seek additional information by performing a web search to supplement the retrieved data.
+
+Above steps are mentioned in 
+**[Official Paper](https://arxiv.org/abs/2401.15884)**
+
+<figure markdown="span">
+  ![agent-based-rag](https://raw.githubusercontent.com/lancedb/assets/main/docs/assets/rag/crag_paper.png)
+  <figcaption>Corrective RAG: <a href="https://github.com/HuskyInSalt/CRAG">Source</a>
+  </figcaption>
+</figure>
+
+Corrective Retrieval-Augmented Generation (CRAG) is a method that works like a **built-in fact-checker**.
+
+**[Offical Implementation](https://github.com/HuskyInSalt/CRAG)**
+
+[![Open In Colab](../assets/colab.svg)](https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/tutorials/Corrective-RAG-with_Langgraph/CRAG_with_Langgraph.ipynb)
+
+Here’s a code snippet for defining a table with the [Embedding API](https://lancedb.github.io/lancedb/embeddings/embedding_functions/), and retrieves the relevant documents.
+
+```python
+import pandas as pd
+import lancedb
+from lancedb.pydantic import LanceModel, Vector
+from lancedb.embeddings import get_registry
+
+db = lancedb.connect("/tmp/db")
+model = get_registry().get("sentence-transformers").create(name="BAAI/bge-small-en-v1.5", device="cpu")
+
+class Docs(LanceModel):
+    text: str = model.SourceField()
+    vector: Vector(model.ndims()) = model.VectorField()
+
+table = db.create_table("docs", schema=Docs)
+
+# considering chunks are in list format
+df = pd.DataFrame({'text':chunks})
+table.add(data=df)
+
+# as per document feeded
+query = "How Transformers work?" 
+actual = table.search(query).limit(1).to_list()[0]
+print(actual.text)
+```
+
+Code snippet for grading retrieved documents, filtering out irrelevant ones, and performing a web search if necessary:
+
+```python
+def grade_documents(state):
+    """
+        Determines whether the retrieved documents are relevant to the question
+
+        Args:
+            state (dict): The current graph state
+
+        Returns:
+            state (dict): Updates documents key with relevant documents
+        """
+
+    state_dict = state["keys"]
+    question = state_dict["question"]
+    documents = state_dict["documents"]
+
+    class grade(BaseModel):
+        """
+            Binary score for relevance check
+        """
+
+        binary_score: str = Field(description="Relevance score 'yes' or 'no'")
+
+    model = ChatOpenAI(temperature=0, model="gpt-4-0125-preview", streaming=True)
+    # grading using openai
+    grade_tool_oai = convert_to_openai_tool(grade)
+    llm_with_tool = model.bind(
+        tools=[convert_to_openai_tool(grade_tool_oai)],
+        tool_choice={"type": "function", "function": {"name": "grade"}},
+    )
+
+    parser_tool = PydanticToolsParser(tools=[grade])
+    prompt = PromptTemplate(
+        template="""You are a grader assessing relevance of a retrieved document to a user question. \n
+        Here is the retrieved document: \n\n {context} \n\n
+        Here is the user question: {question} \n
+        If the document contains keyword(s) or semantic meaning related to the user question, grade it as relevant. \n
+        Give a binary score 'yes' or 'no' score to indicate whether the document is relevant to the question.""",
+        input_variables=["context", "question"],
+    )
+
+    chain = prompt | llm_with_tool | parser_tool
+
+    filtered_docs = []
+    search = "No" 
+    for d in documents:
+        score = chain.invoke({"question": question, "context": d.page_content})
+        grade = score[0].binary_score
+        if grade == "yes":
+            filtered_docs.append(d)
+        else:
+            search = "Yes" 
+            continue
+
+    return {
+        "keys": {
+            "documents": filtered_docs,
+            "question": question,
+            "run_web_search": search,
+        }
+    }
+```
+
+Check Colab for the Implementation of CRAG with Langgraph 
+
+[![Open In Colab](../assets/colab.svg)](https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/tutorials/Corrective-RAG-with_Langgraph/CRAG_with_Langgraph.ipynb)

docs/src/rag/graph_rag.md

@@ -0,0 +1,54 @@
+**Graph RAG 📊**
+====================================================================
+Graph RAG uses knowledge graphs together with large language models (LLMs) to improve how information is retrieved and generated. It overcomes the limits of traditional search methods by using knowledge graphs, which organize data as connected entities and relationships.
+
+One of the main benefits of Graph RAG is its ability to capture and represent complex relationships between entities, something that traditional text-based retrieval systems struggle with. By using this structured knowledge, LLMs can better grasp the context and details of a query, resulting in more accurate and insightful answers.
+
+**[Official Paper](https://arxiv.org/pdf/2404.16130)**
+
+**[Offical Implementation](https://github.com/microsoft/graphrag)**
+
+[Microsoft Research Blog](https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/)
+
+!!! note "Default VectorDB"
+
+    Graph RAG uses LanceDB as the default vector database for performing vector search to retrieve relevant entities.
+
+Working with Graph RAG is quite straightforward
+
+- **Installation and API KEY as env variable**
+
+Set `OPENAI_API_KEY` as `GRAPHRAG_API_KEY`
+
+```bash
+pip install graphrag
+export GRAPHRAG_API_KEY="sk-..."
+```
+
+- **Initial structure for indexing dataset**
+
+```bash
+python3 -m graphrag.index --init --root dataset-dir
+```
+
+- **Index Dataset**
+
+```bash
+python3 -m graphrag.index --root dataset-dir
+```
+
+- **Execute Query**
+
+Global Query Execution gives a broad overview of dataset
+
+```bash
+python3 -m graphrag.query --root dataset-dir --method global "query-question"
+```
+
+Local Query Execution gives a detailed and specific answers based on the context of the entities
+
+```bash
+python3 -m graphrag.query --root  dataset-dir --method local "query-question"
+```
+
+[![Open In Colab](../assets/colab.svg)](https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/Graphrag/main.ipynb)

docs/src/rag/multi_head_rag.md

@@ -0,0 +1,49 @@
+**Multi-Head RAG 📃**
+====================================================================
+
+Multi-head RAG (MRAG) is designed to handle queries that need multiple documents with diverse content. These queries are tough because the documents’ embeddings can be far apart, making retrieval difficult. MRAG simplifies this by using the activations from a Transformer's multi-head attention layer, rather than the decoder layer, to fetch these varied documents. Different attention heads capture different aspects of the data, so using these activations helps create embeddings that better represent various data facets and improves retrieval accuracy for complex queries.
+
+**[Official Paper](https://arxiv.org/pdf/2406.05085)**
+
+<figure markdown="span">
+  ![agent-based-rag](https://raw.githubusercontent.com/lancedb/assets/main/docs/assets/rag/mrag-paper.png)
+  <figcaption>Multi-Head RAG: <a href="https://github.com/spcl/MRAG">Source</a>
+  </figcaption>
+</figure>
+
+MRAG is cost-effective and energy-efficient because it avoids extra LLM queries, multiple model instances, increased storage, and additional inference passes.
+
+**[Official Implementation](https://github.com/spcl/MRAG)**
+
+Here’s a code snippet for defining different embedding spaces with the [Embedding API](https://lancedb.github.io/lancedb/embeddings/embedding_functions/)
+
+```python
+import lancedb
+from lancedb.pydantic import LanceModel, Vector
+from lancedb.embeddings import get_registry
+
+# model definition using LanceDB Embedding API
+model1 = get_registry().get("openai").create()
+model2 = get_registry().get("ollama").create(name="llama3")
+model3 = get_registry().get("ollama").create(name="mistral")
+
+
+# define schema for creating embedding spaces with Embedding API
+class Space1(LanceModel):
+    text: str = model1.SourceField()
+    vector: Vector(model1.ndims()) = model1.VectorField()
+
+
+class Space2(LanceModel):
+    text: str = model2.SourceField()
+    vector: Vector(model2.ndims()) = model2.VectorField()
+
+
+class Space3(LanceModel):
+    text: str = model3.SourceField()
+    vector: Vector(model3.ndims()) = model3.VectorField()
+```
+
+Create different tables using defined embedding spaces, then make queries to each embedding space. Use the resulted closest documents from each embedding space to generate answers.
+
+

docs/src/rag/self_rag.md

@@ -0,0 +1,96 @@
+**Self RAG 🤳**
+====================================================================
+Self-RAG is a strategy for Retrieval-Augmented Generation (RAG) to get better retrieved information, generated text, and  checking their own work, all without losing their flexibility. Unlike the traditional Retrieval-Augmented Generation (RAG) method, Self-RAG retrieves information as needed, can skip retrieval if not needed, and evaluates its own output while generating text. It also uses a process to pick the best output based on different preferences.
+
+**[Official Paper](https://arxiv.org/pdf/2310.11511)**
+
+<figure markdown="span">
+  ![agent-based-rag](https://raw.githubusercontent.com/lancedb/assets/main/docs/assets/rag/self_rag.png)
+  <figcaption>Self RAG: <a href="https://github.com/AkariAsai/self-rag">Source</a>
+  </figcaption>
+</figure>
+
+**[Offical Implementation](https://github.com/AkariAsai/self-rag)**
+
+Self-RAG starts by generating a response without retrieving extra info if it's not needed. For questions that need more details, it retrieves to get the necessary information.
+
+Here’s a code snippet for defining retriever using Langchain
+
+```python
+from langchain.text_splitter import RecursiveCharacterTextSplitter
+from langchain_community.document_loaders import WebBaseLoader
+from langchain_community.vectorstores import LanceDB
+from langchain_openai import OpenAIEmbeddings
+
+urls = [
+    "https://lilianweng.github.io/posts/2023-06-23-agent/",
+    "https://lilianweng.github.io/posts/2023-03-15-prompt-engineering/",
+    "https://lilianweng.github.io/posts/2023-10-25-adv-attack-llm/",
+]
+
+
+docs = [WebBaseLoader(url).load() for url in urls]
+docs_list = [item for sublist in docs for item in sublist]
+
+text_splitter = RecursiveCharacterTextSplitter.from_tiktoken_encoder(
+    chunk_size=100, chunk_overlap=50
+)
+doc_splits = text_splitter.split_documents(docs_list)
+
+# add documents in LanceDB
+vectorstore = LanceDB.from_documents(
+    documents=doc_splits,
+    embedding=OpenAIEmbeddings(),
+)
+retriever = vectorstore.as_retriever()
+
+```
+
+Functions that grades the retrieved documents and if required formulates an improved query for better retrieval results  
+
+```python
+def grade_documents(state) -> Literal["generate", "rewrite"]:
+    class grade(BaseModel):
+        binary_score: str = Field(description="Relevance score 'yes' or 'no'")
+
+    model = ChatOpenAI(temperature=0, model="gpt-4-0125-preview", streaming=True)
+    llm_with_tool = model.with_structured_output(grade)
+    prompt = PromptTemplate(
+        template="""You are a grader assessing relevance of a retrieved document to a user question. \n
+        Here is the retrieved document: \n\n {context} \n\n
+        Here is the user question: {question} \n
+        If the document contains keyword(s) or semantic meaning related to the user question, grade it as relevant. \n
+        Give a binary score 'yes' or 'no' score to indicate whether the document is relevant to the question.""",
+        input_variables=["context", "question"],
+    )
+    chain = prompt | llm_with_tool
+
+    messages = state["messages"]
+    last_message = messages[-1]
+    question = messages[0].content
+    docs = last_message.content
+
+    scored_result = chain.invoke({"question": question, "context": docs})
+    score = scored_result.binary_score
+
+    return "generate" if score == "yes" else "rewrite"
+
+
+def rewrite(state):
+    messages = state["messages"]
+    question = messages[0].content
+    msg = [
+        HumanMessage(
+            content=f""" \n
+            Look at the input and try to reason about the underlying semantic intent / meaning. \n
+            Here is the initial question:
+            \n ------- \n
+            {question}
+            \n ------- \n
+            Formulate an improved question: """,
+        )
+    ]
+    model = ChatOpenAI(temperature=0, model="gpt-4-0125-preview", streaming=True)
+    response = model.invoke(msg)
+    return {"messages": [response]}
+```

docs/src/rag/sfr_rag.md

@@ -0,0 +1,17 @@
+**SFR RAG 📑**
+====================================================================
+Salesforce AI Research introduces SFR-RAG, a 9-billion-parameter language model trained with a significant emphasis on reliable, precise, and faithful contextual generation abilities specific to real-world RAG use cases and relevant agentic tasks. They include precise factual knowledge extraction, distinguishing relevant against distracting contexts, citing appropriate sources along with answers, producing complex and multi-hop reasoning over multiple contexts, consistent format following, as well as refraining from hallucination over unanswerable queries.
+
+**[Offical Implementation](https://github.com/SalesforceAIResearch/SFR-RAG)**
+
+<figure markdown="span">
+  ![agent-based-rag](https://raw.githubusercontent.com/lancedb/assets/main/docs/assets/rag/salesforce_contextbench.png)
+  <figcaption>Average Scores in ContextualBench: <a href="https://blog.salesforceairesearch.com/sfr-rag/">Source</a>
+  </figcaption>
+</figure>
+
+To reliably evaluate LLMs in contextual question-answering for RAG, Saleforce introduced [ContextualBench](https://huggingface.co/datasets/Salesforce/ContextualBench?ref=blog.salesforceairesearch.com), featuring 7 benchmarks like [HotpotQA](https://arxiv.org/abs/1809.09600?ref=blog.salesforceairesearch.com) and [2WikiHopQA](https://www.aclweb.org/anthology/2020.coling-main.580/?ref=blog.salesforceairesearch.com) with consistent setups. 
+
+SFR-RAG outperforms GPT-4o, achieving state-of-the-art results in 3 out of 7 benchmarks, and significantly surpasses Command-R+ while using 10 times fewer parameters. It also excels at handling context, even when facts are altered or conflicting.
+
+[Saleforce AI Research Blog](https://blog.salesforceairesearch.com/sfr-rag/)

docs/src/rag/vanilla_rag.md

@@ -0,0 +1,54 @@
+**Vanilla RAG 🌱**
+====================================================================
+
+RAG(Retrieval-Augmented Generation) works by finding documents related to the user's question, combining them with a prompt for a large language model (LLM), and then using the LLM to create more accurate and relevant answers.
+
+Here’s a simple guide to building a RAG pipeline from scratch:
+
+1. **Data Loading**: Gather and load the documents you want to use for answering questions.
+
+2. **Chunking and Embedding**: Split the documents into smaller chunks and convert them into numerical vectors (embeddings) that capture their meaning.
+
+3. **Vector Store**: Create a LanceDB table to store and manage these vectors for quick access during retrieval.
+
+4. **Retrieval & Prompt Preparation**: When a question is asked, find the most relevant document chunks from the table and prepare a prompt combining these chunks with the question.
+
+5. **Answer Generation**: Send the prepared prompt to a LLM to generate a detailed and accurate answer.
+
+<figure markdown="span">
+  ![agent-based-rag](https://raw.githubusercontent.com/lancedb/assets/main/docs/assets/rag/rag_from_scratch.png)
+  <figcaption>Vanilla RAG
+  </figcaption>
+</figure>
+
+[![Open In Colab](../assets/colab.svg)](https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/tutorials/RAG-from-Scratch/RAG_from_Scratch.ipynb)
+
+Here’s a code snippet for defining a table with the [Embedding API](https://lancedb.github.io/lancedb/embeddings/embedding_functions/), which simplifies the process by handling embedding extraction and querying in one step.
+
+```python
+import pandas as pd
+import lancedb
+from lancedb.pydantic import LanceModel, Vector
+from lancedb.embeddings import get_registry
+
+db = lancedb.connect("/tmp/db")
+model = get_registry().get("sentence-transformers").create(name="BAAI/bge-small-en-v1.5", device="cpu")
+
+class Docs(LanceModel):
+    text: str = model.SourceField()
+    vector: Vector(model.ndims()) = model.VectorField()
+
+table = db.create_table("docs", schema=Docs)
+
+# considering chunks are in list format
+df = pd.DataFrame({'text':chunks})
+table.add(data=df)
+
+query = "What is issue date of lease?"
+actual = table.search(query).limit(1).to_list()[0]
+print(actual.text)
+```
+
+Check Colab for the complete code
+
+[![Open In Colab](../assets/colab.svg)](https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/tutorials/RAG-from-Scratch/RAG_from_Scratch.ipynb)

docs/src/reranking/linear_combination.md

@@ -1,6 +1,9 @@
 # Linear Combination Reranker
 
-This is the default re-ranker used by LanceDB hybrid search. It combines the results of semantic and full-text search using a linear combination of the scores. The weights for the linear combination can be specified. It defaults to 0.7, i.e, 70% weight for semantic search and 30% weight for full-text search.
+!!! note
+    This is depricated. It is recommended to use the `RRFReranker` instead, if you want to use a score based reranker.
+
+It combines the results of semantic and full-text search using a linear combination of the scores. The weights for the linear combination can be specified. It defaults to 0.7, i.e, 70% weight for semantic search and 30% weight for full-text search.
 
 !!! note
     Supported Query Types: Hybrid

docs/src/reranking/rrf.md

@@ -1,6 +1,6 @@
 # Reciprocal Rank Fusion Reranker
 
-Reciprocal Rank Fusion (RRF) is an algorithm that evaluates the search scores by leveraging the positions/rank of the documents. The implementation follows this [paper](https://plg.uwaterloo.ca/~gvcormac/cormacksigir09-rrf.pdf).
+This is the default re-ranker used by LanceDB hybrid search. Reciprocal Rank Fusion (RRF) is an algorithm that evaluates the search scores by leveraging the positions/rank of the documents. The implementation follows this [paper](https://plg.uwaterloo.ca/~gvcormac/cormacksigir09-rrf.pdf).
 
 
 !!! note

docs/src/styles/extra.css

@@ -39,4 +39,46 @@
       height: 1.2rem;
       margin-top: -.1rem;
     }
-  }
+  }
+
+/* remove pilcrow as permanent link and add chain icon similar to github https://github.com/squidfunk/mkdocs-material/discussions/3535 */
+
+.headerlink {
+	--permalink-size: 16px; /* for font-relative sizes, 0.6em is a good choice */
+	--permalink-spacing: 4px;
+
+	width: calc(var(--permalink-size) + var(--permalink-spacing));
+	height: var(--permalink-size);
+	vertical-align: middle;
+	background-color: var(--md-default-fg-color--lighter);
+	background-size: var(--permalink-size);
+	mask-size: var(--permalink-size);
+	-webkit-mask-size: var(--permalink-size);
+	mask-repeat: no-repeat;
+	-webkit-mask-repeat: no-repeat;
+	visibility: visible;
+	mask-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z"></path></svg>');
+	-webkit-mask-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="16" height="16" aria-hidden="true"><path fill-rule="evenodd" d="M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z"></path></svg>');
+}
+
+[id]:target .headerlink {
+	background-color: var(--md-typeset-a-color);
+}
+
+.headerlink:hover {
+	background-color: var(--md-accent-fg-color) !important;
+}
+
+@media screen and (min-width: 76.25em) {
+	h1, h2, h3, h4, h5, h6 {
+		display: flex;
+		align-items: center;
+		flex-direction: row;
+		column-gap: 0.2em; /* fixes spaces in titles */
+	}
+
+	.headerlink {
+		order: -1;
+		margin-left: calc(var(--permalink-size) * -1 - var(--permalink-spacing)) !important;
+	}
+}

docs/src/troubleshooting.md

@@ -0,0 +1,33 @@
+## Getting help
+
+The following sections provide various diagnostics and troubleshooting tips for LanceDB.
+These can help you provide additional information when asking questions or making
+error reports.
+
+For trouble shooting, the best place to ask is in our Discord, under the relevant
+language channel. By asking in the language-specific channel, it makes it more
+likely that someone who knows the answer will see your question.
+
+## Enabling logging
+
+To provide more information, especially for LanceDB Cloud related issues, enable
+debug logging. You can set the `LANCEDB_LOG` environment variable:
+
+```shell
+export LANCEDB_LOG=debug
+```
+
+You can turn off colors and formatting in the logs by setting
+
+```shell
+export LANCEDB_LOG_STYLE=never
+```
+
+## Explaining query plans
+
+If you have slow queries or unexpected query results, it can be helpful to
+print the resolved query plan. You can use the `explain_plan` method to do this:
+
+* Python Sync: [LanceQueryBuilder.explain_plan][lancedb.query.LanceQueryBuilder.explain_plan]
+* Python Async: [AsyncQueryBase.explain_plan][lancedb.query.AsyncQueryBase.explain_plan]
+* Node @lancedb/lancedb: [LanceQueryBuilder.explainPlan](/lancedb/js/classes/QueryBase/#explainplan)

docs/test/md_testing.py

@@ -20,7 +20,11 @@ excluded_globs = [
     "../src/reranking/*.md",
     "../src/guides/tuning_retrievers/*.md",
     "../src/embeddings/available_embedding_models/text_embedding_functions/*.md",
-    "../src/embeddings/available_embedding_models/multimodal_embedding_functions/*.md"
+    "../src/embeddings/available_embedding_models/multimodal_embedding_functions/*.md",
+    "../src/rag/*.md",
+    "../src/rag/advanced_techniques/*.md"
+
+
 ]
 
 python_prefix = "py"

docs/test/requirements.txt

@@ -3,7 +3,7 @@ numpy
 pandas
 pylance
 duckdb
+tantivy==0.20.1
 --extra-index-url https://download.pytorch.org/whl/cpu
 torch
 polars>=0.19, <=1.3.0
-

java/core/lancedb-jni/Cargo.toml

@@ -2,7 +2,7 @@
 name = "lancedb-jni"
 description = "JNI bindings for LanceDB"
 # TODO modify lancedb/Cargo.toml for version and dependencies
-version = "0.4.18"
+version = "0.10.0"
 edition.workspace = true
 repository.workspace = true
 readme.workspace = true

java/core/pom.xml

@@ -8,7 +8,7 @@
     <parent>
         <groupId>com.lancedb</groupId>
         <artifactId>lancedb-parent</artifactId>
-        <version>0.0.3</version>
+        <version>0.12.0-final.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
@@ -44,7 +44,7 @@
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter</artifactId>
-             <scope>test</scope>
+            <scope>test</scope>
         </dependency>
     </dependencies>
 

java/pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>com.lancedb</groupId>
     <artifactId>lancedb-parent</artifactId>
-    <version>0.0.3</version>
+    <version>0.12.0-final.0</version>
     <packaging>pom</packaging>
 
     <name>LanceDB Parent</name>
@@ -92,7 +92,7 @@
         </repository>
     </distributionManagement>
 
-     <build>
+    <build>
         <plugins>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
@@ -167,7 +167,8 @@
                     <version>3.2.5</version>
                     <configuration>
                         <argLine>--add-opens=java.base/java.nio=ALL-UNNAMED</argLine>
-                        <forkNode implementation="org.apache.maven.plugin.surefire.extensions.SurefireForkNodeFactory"/>
+                        <forkNode
+                            implementation="org.apache.maven.plugin.surefire.extensions.SurefireForkNodeFactory" />
                         <useSystemClassLoader>false</useSystemClassLoader>
                     </configuration>
                 </plugin>
@@ -183,7 +184,7 @@
         </pluginManagement>
     </build>
 
-   <profiles>
+    <profiles>
         <profile>
             <id>jdk8</id>
             <activation>
@@ -210,7 +211,8 @@
                         <version>3.2.5</version>
                         <configuration>
                             <argLine>--add-opens=java.base/java.nio=ALL-UNNAMED</argLine>
-                            <forkNode implementation="org.apache.maven.plugin.surefire.extensions.SurefireForkNodeFactory" />
+                            <forkNode
+                                implementation="org.apache.maven.plugin.surefire.extensions.SurefireForkNodeFactory" />
                             <useSystemClassLoader>false</useSystemClassLoader>
                         </configuration>
                     </plugin>

node/package.json

@@ -1,6 +1,6 @@
 {
   "name": "vectordb",
-  "version": "0.10.0-beta.1",
+  "version": "0.12.0",
   "description": " Serverless, low-latency vector database for AI applications",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
@@ -58,7 +58,7 @@
     "ts-node-dev": "^2.0.0",
     "typedoc": "^0.24.7",
     "typedoc-plugin-markdown": "^3.15.3",
-    "typescript": "*",
+    "typescript": "^5.1.0",
     "uuid": "^9.0.0"
   },
   "dependencies": {
@@ -88,10 +88,10 @@
     }
   },
   "optionalDependencies": {
-    "@lancedb/vectordb-darwin-arm64": "0.4.20",
-    "@lancedb/vectordb-darwin-x64": "0.4.20",
-    "@lancedb/vectordb-linux-arm64-gnu": "0.4.20",
-    "@lancedb/vectordb-linux-x64-gnu": "0.4.20",
-    "@lancedb/vectordb-win32-x64-msvc": "0.4.20"
+    "@lancedb/vectordb-darwin-arm64": "0.12.0",
+    "@lancedb/vectordb-darwin-x64": "0.12.0",
+    "@lancedb/vectordb-linux-arm64-gnu": "0.12.0",
+    "@lancedb/vectordb-linux-x64-gnu": "0.12.0",
+    "@lancedb/vectordb-win32-x64-msvc": "0.12.0"
   }
 }

node/src/index.ts

@@ -60,7 +60,7 @@ export {
   type MakeArrowTableOptions
 } from "./arrow";
 
-const defaultAwsRegion = "us-west-2";
+const defaultAwsRegion = "us-east-1";
 
 const defaultRequestTimeout = 10_000
 
@@ -111,7 +111,7 @@ export interface ConnectionOptions {
    */
   apiKey?: string
 
-  /** Region to connect */
+  /** Region to connect. Default is 'us-east-1' */
   region?: string
 
   /**
@@ -197,28 +197,32 @@ export async function connect(
 export async function connect(
   arg: string | Partial<ConnectionOptions>
 ): Promise<Connection> {
-  let opts: ConnectionOptions;
+  let partOpts: Partial<ConnectionOptions>;
   if (typeof arg === "string") {
-    opts = { uri: arg };
+    partOpts = { uri: arg };
   } else {
     const keys = Object.keys(arg);
     if (keys.length === 1 && keys[0] === "uri" && typeof arg.uri === "string") {
-      opts = { uri: arg.uri };
+      partOpts = { uri: arg.uri };
     } else {
-      opts = Object.assign(
-        {
-          uri: "",
-          awsCredentials: undefined,
-          awsRegion: defaultAwsRegion,
-          apiKey: undefined,
-          region: defaultAwsRegion,
-          timeout: defaultRequestTimeout 
-        },
-        arg
-      );
+      partOpts = arg;
     }
   }
 
+  let defaultRegion = process.env.AWS_REGION ?? process.env.AWS_DEFAULT_REGION;
+  defaultRegion = (defaultRegion ?? "").trim() !== "" ? defaultRegion : defaultAwsRegion;
+
+  const opts: ConnectionOptions = {
+    uri: partOpts.uri ?? "",
+    awsCredentials: partOpts.awsCredentials ?? undefined,
+    awsRegion: partOpts.awsRegion ?? defaultRegion,
+    apiKey: partOpts.apiKey ?? undefined,
+    region: partOpts.region ?? defaultRegion,
+    timeout: partOpts.timeout ?? defaultRequestTimeout,
+    readConsistencyInterval: partOpts.readConsistencyInterval ?? undefined,
+    storageOptions: partOpts.storageOptions ?? undefined,
+    hostOverride: partOpts.hostOverride ?? undefined
+  }
   if (opts.uri.startsWith("db://")) {
     // Remote connection
     return new RemoteConnection(opts);
@@ -560,7 +564,7 @@ export interface Table<T = number[]> {
   /**
    * Get statistics about an index.
    */
-  indexStats: (indexUuid: string) => Promise<IndexStats>
+  indexStats: (indexName: string) => Promise<IndexStats>
 
   filter(value: string): Query<T>
 
@@ -720,9 +724,9 @@ export interface VectorIndex {
 export interface IndexStats {
   numIndexedRows: number | null
   numUnindexedRows: number | null
-  indexType: string | null
-  distanceType: string | null
-  completedAt: string | null
+  indexType: string
+  distanceType?: string
+  numIndices?: number
 }
 
 /**
@@ -1160,8 +1164,8 @@ export class LocalTable<T = number[]> implements Table<T> {
     return tableListIndices.call(this._tbl);
   }
 
-  async indexStats(indexUuid: string): Promise<IndexStats> {
-    return tableIndexStats.call(this._tbl, indexUuid);
+  async indexStats(indexName: string): Promise<IndexStats> {
+    return tableIndexStats.call(this._tbl, indexName);
   }
 
   get schema(): Promise<Schema> {

node/src/integration_test/test.ts

@@ -14,6 +14,7 @@
 
 import { describe } from 'mocha'
 import * as chai from 'chai'
+import { assert } from 'chai'
 import * as chaiAsPromised from 'chai-as-promised'
 import { v4 as uuidv4 } from 'uuid'
 
@@ -22,7 +23,6 @@ import { tmpdir } from 'os'
 import * as fs from 'fs'
 import * as path from 'path'
 
-const assert = chai.assert
 chai.use(chaiAsPromised)
 
 describe('LanceDB AWS Integration test', function () {

node/src/query.ts

@@ -33,6 +33,7 @@ export class Query<T = number[]> {
   private _filter?: string
   private _metricType?: MetricType
   private _prefilter: boolean
+  private _fastSearch: boolean
   protected readonly _embeddings?: EmbeddingFunction<T>
 
   constructor (query?: T, tbl?: any, embeddings?: EmbeddingFunction<T>) {
@@ -46,6 +47,7 @@ export class Query<T = number[]> {
     this._metricType = undefined
     this._embeddings = embeddings
     this._prefilter = false
+    this._fastSearch = false
   }
 
   /***
@@ -110,6 +112,15 @@ export class Query<T = number[]> {
     return this
   }
 
+  /**
+   * Skip searching un-indexed data. This can make search faster, but will miss
+   * any data that is not yet indexed.
+   */
+  fastSearch (value: boolean): Query<T> {
+    this._fastSearch = value
+    return this
+  }
+
   /**
      * Execute the query and return the results as an Array of Objects
      */
@@ -131,9 +142,9 @@ export class Query<T = number[]> {
       Object.keys(entry).forEach((key: string) => {
         if (entry[key] instanceof Vector) {
           // toJSON() returns f16 array correctly
-          newObject[key] = (entry[key] as Vector).toJSON()
+          newObject[key] = (entry[key] as any).toJSON()
         } else {
-          newObject[key] = entry[key]
+          newObject[key] = entry[key] as any
         }
       })
       return newObject as unknown as T

node/src/remote/client.ts

@@ -17,6 +17,7 @@ import axios, { type AxiosResponse, type ResponseType } from 'axios'
 import { tableFromIPC, type Table as ArrowTable } from 'apache-arrow'
 
 import { type RemoteResponse, type RemoteRequest, Method } from '../middleware'
+import type { MetricType } from '..'
 
 interface HttpLancedbClientMiddleware {
   onRemoteRequest(
@@ -82,7 +83,7 @@ async function callWithMiddlewares (
 
 interface MiddlewareInvocationOptions {
   responseType?: ResponseType
-  timeout?: number,
+  timeout?: number
 }
 
 /**
@@ -130,8 +131,8 @@ export class HttpLancedbClient {
     url: string,
     apiKey: string,
     timeout?: number,
-    private readonly _dbName?: string,
-    
+    private readonly _dbName?: string
+
   ) {
     this._url = url
     this._apiKey = () => apiKey
@@ -151,7 +152,9 @@ export class HttpLancedbClient {
     prefilter: boolean,
     refineFactor?: number,
     columns?: string[],
-    filter?: string
+    filter?: string,
+    metricType?: MetricType,
+    fastSearch?: boolean
   ): Promise<ArrowTable<any>> {
     const result = await this.post(
       `/v1/table/${tableName}/query/`,
@@ -159,10 +162,12 @@ export class HttpLancedbClient {
         vector,
         k,
         nprobes,
-        refineFactor,
+        refine_factor: refineFactor,
         columns,
         filter,
-        prefilter
+        prefilter,
+        metric: metricType,
+        fast_search: fastSearch
       },
       undefined,
       undefined,
@@ -237,7 +242,7 @@ export class HttpLancedbClient {
     try {
       response = await callWithMiddlewares(req, this._middlewares, {
         responseType,
-        timeout: this._timeout,
+        timeout: this._timeout
       })
 
       // return response

node/src/remote/index.ts

@@ -238,16 +238,18 @@ export class RemoteQuery<T = number[]> extends Query<T> {
       (this as any)._prefilter,
       (this as any)._refineFactor,
       (this as any)._select,
-      (this as any)._filter
+      (this as any)._filter,
+      (this as any)._metricType,
+      (this as any)._fastSearch
     )
 
     return data.toArray().map((entry: Record<string, unknown>) => {
       const newObject: Record<string, unknown> = {}
       Object.keys(entry).forEach((key: string) => {
         if (entry[key] instanceof Vector) {
-          newObject[key] = (entry[key] as Vector).toArray()
+          newObject[key] = (entry[key] as any).toArray()
         } else {
-          newObject[key] = entry[key]
+          newObject[key] = entry[key] as any
         }
       })
       return newObject as unknown as T
@@ -515,17 +517,16 @@ export class RemoteTable<T = number[]> implements Table<T> {
     }))
   }
 
-  async indexStats (indexUuid: string): Promise<IndexStats> {
+  async indexStats (indexName: string): Promise<IndexStats> {
     const results = await this._client.post(
-      `/v1/table/${encodeURIComponent(this._name)}/index/${indexUuid}/stats/`
+      `/v1/table/${encodeURIComponent(this._name)}/index/${indexName}/stats/`
     )
     const body = await results.body()
     return {
       numIndexedRows: body?.num_indexed_rows,
       numUnindexedRows: body?.num_unindexed_rows,
       indexType: body?.index_type,
-      distanceType: body?.distance_type,
-      completedAt: body?.completed_at
+      distanceType: body?.distance_type
     }
   }
 

node/src/test/test.ts

@@ -14,6 +14,7 @@
 
 import { describe } from "mocha";
 import { track } from "temp";
+import { assert, expect } from 'chai'
 import * as chai from "chai";
 import * as chaiAsPromised from "chai-as-promised";
 
@@ -44,8 +45,6 @@ import {
 } from "apache-arrow";
 import type { RemoteRequest, RemoteResponse } from "../middleware";
 
-const expect = chai.expect;
-const assert = chai.assert;
 chai.use(chaiAsPromised);
 
 describe("LanceDB client", function () {
@@ -112,8 +111,8 @@ describe("LanceDB client", function () {
           name: 'name_2',
           price: 10,
           is_active: true,
-          vector: [ 0, 0.1 ]
-        },
+          vector: [0, 0.1]
+        }
       ]);
       assert.equal(await table2.countRows(), 3);
     });
@@ -169,7 +168,7 @@ describe("LanceDB client", function () {
 
       // Should reject a bad filter
       await expect(table.filter("id % 2 = 0 AND").execute()).to.be.rejectedWith(
-        /.*sql parser error: Expected an expression:, found: EOF.*/
+        /.*sql parser error: .*/
       );
     });
 
@@ -888,9 +887,12 @@ describe("LanceDB client", function () {
       expect(indices[0].columns).to.have.lengthOf(1);
       expect(indices[0].columns[0]).to.equal("vector");
 
-      const stats = await table.indexStats(indices[0].uuid);
+      const stats = await table.indexStats(indices[0].name);
       expect(stats.numIndexedRows).to.equal(300);
       expect(stats.numUnindexedRows).to.equal(0);
+      expect(stats.indexType).to.equal("IVF_PQ");
+      expect(stats.distanceType).to.equal("l2");
+      expect(stats.numIndices).to.equal(1);
     }).timeout(50_000);
   });
 

nodejs/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "lancedb-nodejs"
 edition.workspace = true
-version = "0.0.0"
+version = "0.12.0"
 license.workspace = true
 description.workspace = true
 repository.workspace = true
@@ -13,8 +13,9 @@ crate-type = ["cdylib"]
 
 [dependencies]
 arrow-ipc.workspace = true
+env_logger.workspace = true
 futures.workspace = true
-lancedb = { path = "../rust/lancedb" }
+lancedb = { path = "../rust/lancedb", features = ["remote"] }
 napi = { version = "2.16.8", default-features = false, features = [
     "napi9",
     "async",
@@ -22,6 +23,7 @@ napi = { version = "2.16.8", default-features = false, features = [
 napi-derive = "2.16.4"
 # Prevent dynamic linking of lzma, which comes from datafusion
 lzma-sys = { version = "*", features = ["static"] }
+log.workspace = true
 
 [build-dependencies]
 napi-build = "2.1"

nodejs/__test__/connection.test.ts

@@ -107,7 +107,7 @@ describe("given a connection", () => {
     const data = [...Array(10000).keys()].map((i) => ({ id: i }));
 
     // Create in v1 mode
-    let table = await db.createTable("test", data);
+    let table = await db.createTable("test", data, { useLegacyFormat: true });
 
     const isV2 = async (table: Table) => {
       const data = await table.query().toArrow({ maxBatchLength: 100000 });
@@ -118,7 +118,7 @@ describe("given a connection", () => {
     await expect(isV2(table)).resolves.toBe(false);
 
     // Create in v2 mode
-    table = await db.createTable("test_v2", data, { useLegacyFormat: false });
+    table = await db.createTable("test_v2", data);
 
     await expect(isV2(table)).resolves.toBe(true);
 

nodejs/__test__/remote.test.ts

@@ -0,0 +1,118 @@
+// Copyright 2024 Lance Developers.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import * as http from "http";
+import { RequestListener } from "http";
+import { Connection, ConnectionOptions, connect } from "../lancedb";
+
+async function withMockDatabase(
+  listener: RequestListener,
+  callback: (db: Connection) => void,
+  connectionOptions?: ConnectionOptions,
+) {
+  const server = http.createServer(listener);
+  server.listen(8000);
+
+  const db = await connect(
+    "db://dev",
+    Object.assign(
+      {
+        apiKey: "fake",
+        hostOverride: "http://localhost:8000",
+      },
+      connectionOptions,
+    ),
+  );
+
+  try {
+    await callback(db);
+  } finally {
+    server.close();
+  }
+}
+
+describe("remote connection", () => {
+  it("should accept partial connection options", async () => {
+    await connect("db://test", {
+      apiKey: "fake",
+      clientConfig: {
+        timeoutConfig: { readTimeout: 5 },
+        retryConfig: { retries: 2 },
+      },
+    });
+  });
+
+  it("should pass down apiKey and userAgent", async () => {
+    await withMockDatabase(
+      (req, res) => {
+        expect(req.headers["x-api-key"]).toEqual("fake");
+        expect(req.headers["user-agent"]).toEqual(
+          `LanceDB-Node-Client/${process.env.npm_package_version}`,
+        );
+
+        const body = JSON.stringify({ tables: [] });
+        res.writeHead(200, { "Content-Type": "application/json" }).end(body);
+      },
+      async (db) => {
+        const tableNames = await db.tableNames();
+        expect(tableNames).toEqual([]);
+      },
+    );
+  });
+
+  it("allows customizing user agent", async () => {
+    await withMockDatabase(
+      (req, res) => {
+        expect(req.headers["user-agent"]).toEqual("MyApp/1.0");
+
+        const body = JSON.stringify({ tables: [] });
+        res.writeHead(200, { "Content-Type": "application/json" }).end(body);
+      },
+      async (db) => {
+        const tableNames = await db.tableNames();
+        expect(tableNames).toEqual([]);
+      },
+      {
+        clientConfig: {
+          userAgent: "MyApp/1.0",
+        },
+      },
+    );
+  });
+
+  it("shows the full error messages on retry errors", async () => {
+    await withMockDatabase(
+      (_req, res) => {
+        // We retry on 500 errors, so we return 500s until the client gives up.
+        res.writeHead(500).end("Internal Server Error");
+      },
+      async (db) => {
+        try {
+          await db.tableNames();
+          fail("expected an error");
+          // biome-ignore lint/suspicious/noExplicitAny: skip
+        } catch (e: any) {
+          expect(e.message).toContain("Hit retry limit for request_id=");
+          expect(e.message).toContain("Caused by: Http error");
+          expect(e.message).toContain("500 Internal Server Error");
+        }
+      },
+      {
+        clientConfig: {
+          retryConfig: { retries: 2 },
+        },
+      },
+    );
+  });
+});

nodejs/__test__/table.test.ts

@@ -479,6 +479,9 @@ describe("When creating an index", () => {
     expect(stats).toBeDefined();
     expect(stats?.numIndexedRows).toEqual(300);
     expect(stats?.numUnindexedRows).toEqual(0);
+    expect(stats?.distanceType).toBeUndefined();
+    expect(stats?.indexType).toEqual("BTREE");
+    expect(stats?.numIndices).toEqual(1);
   });
 
   test("when getting stats on non-existent index", async () => {
@@ -872,7 +875,7 @@ describe.each([arrow13, arrow14, arrow15, arrow16, arrow17])(
       ];
       const table = await db.createTable("test", data);
       await table.createIndex("text", {
-        config: Index.fts({ withPositions: false }),
+        config: Index.fts({ withPosition: false }),
       });
 
       const results = await table.search("hello").toArray();

nodejs/lancedb/connection.ts

@@ -44,11 +44,12 @@ export interface CreateTableOptions {
    * The available options are described at https://lancedb.github.io/lancedb/guides/storage/
    */
   storageOptions?: Record<string, string>;
+
   /**
    * The version of the data storage format to use.
    *
-   * The default is `legacy`, which is Lance format v1.
-   * `stable` is the new format, which is Lance format v2.
+   * The default is `stable`.
+   * Set to "legacy" to use the old format.
    */
   dataStorageVersion?: string;
 
@@ -64,9 +65,9 @@ export interface CreateTableOptions {
   /**
    * If true then data files will be written with the legacy format
    *
-   * The default is true while the new format is in beta
+   * The default is false.
    *
-   * Deprecated.
+   * Deprecated. Use data storage version instead.
    */
   useLegacyFormat?: boolean;
   schema?: SchemaLike;
@@ -266,7 +267,7 @@ export class LocalConnection extends Connection {
       throw new Error("data is required");
     }
     const { buf, mode } = await Table.parseTableData(data, options);
-    let dataStorageVersion = "legacy";
+    let dataStorageVersion = "stable";
     if (options?.dataStorageVersion !== undefined) {
       dataStorageVersion = options.dataStorageVersion;
     } else if (options?.useLegacyFormat !== undefined) {
@@ -303,7 +304,7 @@ export class LocalConnection extends Connection {
       metadata = registry.getTableMetadata([embeddingFunction]);
     }
 
-    let dataStorageVersion = "legacy";
+    let dataStorageVersion = "stable";
     if (options?.dataStorageVersion !== undefined) {
       dataStorageVersion = options.dataStorageVersion;
     } else if (options?.useLegacyFormat !== undefined) {

nodejs/lancedb/index.ts

@@ -23,8 +23,6 @@ import {
   Connection as LanceDbConnection,
 } from "./native.js";
 
-import { RemoteConnection, RemoteConnectionOptions } from "./remote";
-
 export {
   WriteOptions,
   WriteMode,
@@ -32,8 +30,10 @@ export {
   ColumnAlteration,
   ConnectionOptions,
   IndexStatistics,
-  IndexMetadata,
   IndexConfig,
+  ClientConfig,
+  TimeoutConfig,
+  RetryConfig,
 } from "./native.js";
 
 export {
@@ -88,7 +88,7 @@ export * as embedding from "./embedding";
  */
 export async function connect(
   uri: string,
-  opts?: Partial<ConnectionOptions | RemoteConnectionOptions>,
+  opts?: Partial<ConnectionOptions>,
 ): Promise<Connection>;
 /**
  * Connect to a LanceDB instance at the given URI.
@@ -109,13 +109,11 @@ export async function connect(
  * ```
  */
 export async function connect(
-  opts: Partial<RemoteConnectionOptions | ConnectionOptions> & { uri: string },
+  opts: Partial<ConnectionOptions> & { uri: string },
 ): Promise<Connection>;
 export async function connect(
-  uriOrOptions:
-    | string
-    | (Partial<RemoteConnectionOptions | ConnectionOptions> & { uri: string }),
-  opts: Partial<ConnectionOptions | RemoteConnectionOptions> = {},
+  uriOrOptions: string | (Partial<ConnectionOptions> & { uri: string }),
+  opts: Partial<ConnectionOptions> = {},
 ): Promise<Connection> {
   let uri: string | undefined;
   if (typeof uriOrOptions !== "string") {
@@ -130,9 +128,6 @@ export async function connect(
     throw new Error("uri is required");
   }
 
-  if (uri?.startsWith("db://")) {
-    return new RemoteConnection(uri, opts as RemoteConnectionOptions);
-  }
   opts = (opts as ConnectionOptions) ?? {};
   (<ConnectionOptions>opts).storageOptions = cleanseStorageOptions(
     (<ConnectionOptions>opts).storageOptions,

nodejs/lancedb/indices.ts

@@ -113,22 +113,218 @@ export interface IvfPqOptions {
   sampleRate?: number;
 }
 
+/**
+ * Options to create an `HNSW_PQ` index
+ */
 export interface HnswPqOptions {
+  /**
+   * The distance metric used to train the index.
+   *
+   * Default value is "l2".
+   *
+   * The following distance types are available:
+   *
+   * "l2" - Euclidean distance. This is a very common distance metric that
+   * accounts for both magnitude and direction when determining the distance
+   * between vectors. L2 distance has a range of [0, ∞).
+   *
+   * "cosine" - Cosine distance.  Cosine distance is a distance metric
+   * calculated from the cosine similarity between two vectors. Cosine
+   * similarity is a measure of similarity between two non-zero vectors of an
+   * inner product space. It is defined to equal the cosine of the angle
+   * between them.  Unlike L2, the cosine distance is not affected by the
+   * magnitude of the vectors.  Cosine distance has a range of [0, 2].
+   *
+   * "dot" - Dot product. Dot distance is the dot product of two vectors. Dot
+   * distance has a range of (-∞, ∞). If the vectors are normalized (i.e. their
+   * L2 norm is 1), then dot distance is equivalent to the cosine distance.
+   */
   distanceType?: "l2" | "cosine" | "dot";
+
+  /**
+   * The number of IVF partitions to create.
+   *
+   * For HNSW, we recommend a small number of partitions. Setting this to 1 works
+   * well for most tables. For very large tables, training just one HNSW graph
+   * will require too much memory. Each partition becomes its own HNSW graph, so
+   * setting this value higher reduces the peak memory use of training.
+   *
+   */
   numPartitions?: number;
+
+  /**
+   * Number of sub-vectors of PQ.
+   *
+   * This value controls how much the vector is compressed during the quantization step.
+   * The more sub vectors there are the less the vector is compressed.  The default is
+   * the dimension of the vector divided by 16.  If the dimension is not evenly divisible
+   * by 16 we use the dimension divded by 8.
+   *
+   * The above two cases are highly preferred.  Having 8 or 16 values per subvector allows
+   * us to use efficient SIMD instructions.
+   *
+   * If the dimension is not visible by 8 then we use 1 subvector.  This is not ideal and
+   * will likely result in poor performance.
+   *
+   */
   numSubVectors?: number;
+
+  /**
+   * Max iterations to train kmeans.
+   *
+   * The default value is 50.
+   *
+   * When training an IVF index we use kmeans to calculate the partitions.  This parameter
+   * controls how many iterations of kmeans to run.
+   *
+   * Increasing this might improve the quality of the index but in most cases the parameter
+   * is unused because kmeans will converge with fewer iterations.  The parameter is only
+   * used in cases where kmeans does not appear to converge.  In those cases it is unlikely
+   * that setting this larger will lead to the index converging anyways.
+   *
+   */
   maxIterations?: number;
+
+  /**
+   * The rate used to calculate the number of training vectors for kmeans.
+   *
+   * Default value is 256.
+   *
+   * When an IVF index is trained, we need to calculate partitions.  These are groups
+   * of vectors that are similar to each other.  To do this we use an algorithm called kmeans.
+   *
+   * Running kmeans on a large dataset can be slow.  To speed this up we run kmeans on a
+   * random sample of the data.  This parameter controls the size of the sample.  The total
+   * number of vectors used to train the index is `sample_rate * num_partitions`.
+   *
+   * Increasing this value might improve the quality of the index but in most cases the
+   * default should be sufficient.
+   *
+   */
   sampleRate?: number;
+
+  /**
+   * The number of neighbors to select for each vector in the HNSW graph.
+   *
+   * The default value is 20.
+   *
+   * This value controls the tradeoff between search speed and accuracy.
+   * The higher the value the more accurate the search but the slower it will be.
+   *
+   */
   m?: number;
+
+  /**
+   * The number of candidates to evaluate during the construction of the HNSW graph.
+   *
+   * The default value is 300.
+   *
+   * This value controls the tradeoff between build speed and accuracy.
+   * The higher the value the more accurate the build but the slower it will be.
+   * 150 to 300 is the typical range. 100 is a minimum for good quality search
+   * results. In most cases, there is no benefit to setting this higher than 500.
+   * This value should be set to a value that is not less than `ef` in the search phase.
+   *
+   */
   efConstruction?: number;
 }
 
+/**
+ * Options to create an `HNSW_SQ` index
+ */
 export interface HnswSqOptions {
+  /**
+   * The distance metric used to train the index.
+   *
+   * Default value is "l2".
+   *
+   * The following distance types are available:
+   *
+   * "l2" - Euclidean distance. This is a very common distance metric that
+   * accounts for both magnitude and direction when determining the distance
+   * between vectors. L2 distance has a range of [0, ∞).
+   *
+   * "cosine" - Cosine distance.  Cosine distance is a distance metric
+   * calculated from the cosine similarity between two vectors. Cosine
+   * similarity is a measure of similarity between two non-zero vectors of an
+   * inner product space. It is defined to equal the cosine of the angle
+   * between them.  Unlike L2, the cosine distance is not affected by the
+   * magnitude of the vectors.  Cosine distance has a range of [0, 2].
+   *
+   * "dot" - Dot product. Dot distance is the dot product of two vectors. Dot
+   * distance has a range of (-∞, ∞). If the vectors are normalized (i.e. their
+   * L2 norm is 1), then dot distance is equivalent to the cosine distance.
+   */
   distanceType?: "l2" | "cosine" | "dot";
+
+  /**
+   * The number of IVF partitions to create.
+   *
+   * For HNSW, we recommend a small number of partitions. Setting this to 1 works
+   * well for most tables. For very large tables, training just one HNSW graph
+   * will require too much memory. Each partition becomes its own HNSW graph, so
+   * setting this value higher reduces the peak memory use of training.
+   *
+   */
   numPartitions?: number;
+
+  /**
+   * Max iterations to train kmeans.
+   *
+   * The default value is 50.
+   *
+   * When training an IVF index we use kmeans to calculate the partitions.  This parameter
+   * controls how many iterations of kmeans to run.
+   *
+   * Increasing this might improve the quality of the index but in most cases the parameter
+   * is unused because kmeans will converge with fewer iterations.  The parameter is only
+   * used in cases where kmeans does not appear to converge.  In those cases it is unlikely
+   * that setting this larger will lead to the index converging anyways.
+   *
+   */
   maxIterations?: number;
+
+  /**
+   * The rate used to calculate the number of training vectors for kmeans.
+   *
+   * Default value is 256.
+   *
+   * When an IVF index is trained, we need to calculate partitions.  These are groups
+   * of vectors that are similar to each other.  To do this we use an algorithm called kmeans.
+   *
+   * Running kmeans on a large dataset can be slow.  To speed this up we run kmeans on a
+   * random sample of the data.  This parameter controls the size of the sample.  The total
+   * number of vectors used to train the index is `sample_rate * num_partitions`.
+   *
+   * Increasing this value might improve the quality of the index but in most cases the
+   * default should be sufficient.
+   *
+   */
   sampleRate?: number;
+
+  /**
+   * The number of neighbors to select for each vector in the HNSW graph.
+   *
+   * The default value is 20.
+   *
+   * This value controls the tradeoff between search speed and accuracy.
+   * The higher the value the more accurate the search but the slower it will be.
+   *
+   */
   m?: number;
+
+  /**
+   * The number of candidates to evaluate during the construction of the HNSW graph.
+   *
+   * The default value is 300.
+   *
+   * This value controls the tradeoff between build speed and accuracy.
+   * The higher the value the more accurate the build but the slower it will be.
+   * 150 to 300 is the typical range. 100 is a minimum for good quality search
+   * results. In most cases, there is no benefit to setting this higher than 500.
+   * This value should be set to a value that is not less than `ef` in the search phase.
+   *
+   */
   efConstruction?: number;
 }
 
@@ -142,7 +338,7 @@ export interface FtsOptions {
    * If set to false, the index will not store the positions of the tokens in the text,
    * which will make the index smaller and faster to build, but will not support phrase queries.
    */
-  withPositions?: boolean;
+  withPosition?: boolean;
 }
 
 export class Index {
@@ -244,12 +440,16 @@ export class Index {
    * For now, the full text search index only supports English, and doesn't support phrase search.
    */
   static fts(options?: Partial<FtsOptions>) {
-    return new Index(LanceDbIndex.fts(options?.withPositions));
+    return new Index(LanceDbIndex.fts(options?.withPosition));
   }
 
   /**
    *
-   * Create a hnswpq index
+   * Create a hnswPq index
+   *
+   * HNSW-PQ stands for Hierarchical Navigable Small World - Product Quantization.
+   * It is a variant of the HNSW algorithm that uses product quantization to compress
+   * the vectors.
    *
    */
   static hnswPq(options?: Partial<HnswPqOptions>) {
@@ -268,7 +468,11 @@ export class Index {
 
   /**
    *
-   * Create a hnswsq index
+   * Create a hnswSq index
+   *
+   * HNSW-SQ stands for Hierarchical Navigable Small World - Scalar Quantization.
+   * It is a variant of the HNSW algorithm that uses scalar quantization to compress
+   * the vectors.
    *
    */
   static hnswSq(options?: Partial<HnswSqOptions>) {

nodejs/lancedb/remote/client.ts

@@ -1,218 +0,0 @@
-// Copyright 2023 LanceDB Developers.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-import axios, {
-  AxiosError,
-  type AxiosResponse,
-  type ResponseType,
-} from "axios";
-import { Table as ArrowTable } from "../arrow";
-import { tableFromIPC } from "../arrow";
-import { VectorQuery } from "../query";
-
-export class RestfulLanceDBClient {
-  #dbName: string;
-  #region: string;
-  #apiKey: string;
-  #hostOverride?: string;
-  #closed: boolean = false;
-  #timeout: number = 12 * 1000; // 12 seconds;
-  #session?: import("axios").AxiosInstance;
-
-  constructor(
-    dbName: string,
-    apiKey: string,
-    region: string,
-    hostOverride?: string,
-    timeout?: number,
-  ) {
-    this.#dbName = dbName;
-    this.#apiKey = apiKey;
-    this.#region = region;
-    this.#hostOverride = hostOverride ?? this.#hostOverride;
-    this.#timeout = timeout ?? this.#timeout;
-  }
-
-  // todo: cache the session.
-  get session(): import("axios").AxiosInstance {
-    if (this.#session !== undefined) {
-      return this.#session;
-    } else {
-      return axios.create({
-        baseURL: this.url,
-        headers: {
-          // biome-ignore lint: external API
-          Authorization: `Bearer ${this.#apiKey}`,
-        },
-        transformResponse: decodeErrorData,
-        timeout: this.#timeout,
-      });
-    }
-  }
-
-  get url(): string {
-    return (
-      this.#hostOverride ??
-      `https://${this.#dbName}.${this.#region}.api.lancedb.com`
-    );
-  }
-
-  get headers(): { [key: string]: string } {
-    const headers: { [key: string]: string } = {
-      "x-api-key": this.#apiKey,
-      "x-request-id": "na",
-    };
-    if (this.#region == "local") {
-      headers["Host"] = `${this.#dbName}.${this.#region}.api.lancedb.com`;
-    }
-    if (this.#hostOverride) {
-      headers["x-lancedb-database"] = this.#dbName;
-    }
-    return headers;
-  }
-
-  isOpen(): boolean {
-    return !this.#closed;
-  }
-
-  private checkNotClosed(): void {
-    if (this.#closed) {
-      throw new Error("Connection is closed");
-    }
-  }
-
-  close(): void {
-    this.#session = undefined;
-    this.#closed = true;
-  }
-
-  // biome-ignore lint/suspicious/noExplicitAny: <explanation>
-  async get(uri: string, params?: Record<string, any>): Promise<any> {
-    this.checkNotClosed();
-    uri = new URL(uri, this.url).toString();
-    let response;
-    try {
-      response = await this.session.get(uri, {
-        headers: this.headers,
-        params,
-      });
-    } catch (e) {
-      if (e instanceof AxiosError && e.response) {
-        response = e.response;
-      } else {
-        throw e;
-      }
-    }
-
-    RestfulLanceDBClient.checkStatus(response!);
-    return response!.data;
-  }
-
-  // biome-ignore lint/suspicious/noExplicitAny: api response
-  async post(uri: string, body?: any): Promise<any>;
-  async post(
-    uri: string,
-    // biome-ignore lint/suspicious/noExplicitAny: api request
-    body: any,
-    additional: {
-      config?: { responseType: "arraybuffer" };
-      headers?: Record<string, string>;
-      params?: Record<string, string>;
-    },
-  ): Promise<Buffer>;
-  async post(
-    uri: string,
-    // biome-ignore lint/suspicious/noExplicitAny: api request
-    body?: any,
-    additional?: {
-      config?: { responseType: ResponseType };
-      headers?: Record<string, string>;
-      params?: Record<string, string>;
-    },
-    // biome-ignore lint/suspicious/noExplicitAny: api response
-  ): Promise<any> {
-    this.checkNotClosed();
-    uri = new URL(uri, this.url).toString();
-    additional = Object.assign(
-      { config: { responseType: "json" } },
-      additional,
-    );
-
-    const headers = { ...this.headers, ...additional.headers };
-
-    if (!headers["Content-Type"]) {
-      headers["Content-Type"] = "application/json";
-    }
-    let response;
-    try {
-      response = await this.session.post(uri, body, {
-        headers,
-        responseType: additional!.config!.responseType,
-        params: new Map(Object.entries(additional.params ?? {})),
-      });
-    } catch (e) {
-      if (e instanceof AxiosError && e.response) {
-        response = e.response;
-      } else {
-        throw e;
-      }
-    }
-    RestfulLanceDBClient.checkStatus(response!);
-    if (additional!.config!.responseType === "arraybuffer") {
-      return response!.data;
-    } else {
-      return JSON.parse(response!.data);
-    }
-  }
-
-  async listTables(limit = 10, pageToken = ""): Promise<string[]> {
-    const json = await this.get("/v1/table", { limit, pageToken });
-    return json.tables;
-  }
-
-  async query(tableName: string, query: VectorQuery): Promise<ArrowTable> {
-    const tbl = await this.post(`/v1/table/${tableName}/query`, query, {
-      config: {
-        responseType: "arraybuffer",
-      },
-    });
-    return tableFromIPC(tbl);
-  }
-
-  static checkStatus(response: AxiosResponse): void {
-    if (response.status === 404) {
-      throw new Error(`Not found: ${response.data}`);
-    } else if (response.status >= 400 && response.status < 500) {
-      throw new Error(
-        `Bad Request: ${response.status}, error: ${response.data}`,
-      );
-    } else if (response.status >= 500 && response.status < 600) {
-      throw new Error(
-        `Internal Server Error: ${response.status}, error: ${response.data}`,
-      );
-    } else if (response.status !== 200) {
-      throw new Error(
-        `Unknown Error: ${response.status}, error: ${response.data}`,
-      );
-    }
-  }
-}
-
-function decodeErrorData(data: unknown) {
-  if (Buffer.isBuffer(data)) {
-    const decoded = data.toString("utf-8");
-    return decoded;
-  }
-  return data;
-}

nodejs/lancedb/remote/connection.ts

@@ -1,193 +0,0 @@
-import { Schema } from "apache-arrow";
-import {
-  Data,
-  SchemaLike,
-  fromTableToStreamBuffer,
-  makeEmptyTable,
-} from "../arrow";
-import {
-  Connection,
-  CreateTableOptions,
-  OpenTableOptions,
-  TableNamesOptions,
-} from "../connection";
-import { Table } from "../table";
-import { TTLCache } from "../util";
-import { RestfulLanceDBClient } from "./client";
-import { RemoteTable } from "./table";
-
-export interface RemoteConnectionOptions {
-  apiKey?: string;
-  region?: string;
-  hostOverride?: string;
-  timeout?: number;
-}
-
-export class RemoteConnection extends Connection {
-  #dbName: string;
-  #apiKey: string;
-  #region: string;
-  #client: RestfulLanceDBClient;
-  #tableCache = new TTLCache(300_000);
-
-  constructor(
-    url: string,
-    { apiKey, region, hostOverride, timeout }: RemoteConnectionOptions,
-  ) {
-    super();
-    apiKey = apiKey ?? process.env.LANCEDB_API_KEY;
-    region = region ?? process.env.LANCEDB_REGION;
-
-    if (!apiKey) {
-      throw new Error("apiKey is required when connecting to LanceDB Cloud");
-    }
-
-    if (!region) {
-      throw new Error("region is required when connecting to LanceDB Cloud");
-    }
-
-    const parsed = new URL(url);
-    if (parsed.protocol !== "db:") {
-      throw new Error(
-        `invalid protocol: ${parsed.protocol}, only accepts db://`,
-      );
-    }
-
-    this.#dbName = parsed.hostname;
-    this.#apiKey = apiKey;
-    this.#region = region;
-    this.#client = new RestfulLanceDBClient(
-      this.#dbName,
-      this.#apiKey,
-      this.#region,
-      hostOverride,
-      timeout,
-    );
-  }
-
-  isOpen(): boolean {
-    return this.#client.isOpen();
-  }
-  close(): void {
-    return this.#client.close();
-  }
-
-  display(): string {
-    return `RemoteConnection(${this.#dbName})`;
-  }
-
-  async tableNames(options?: Partial<TableNamesOptions>): Promise<string[]> {
-    const response = await this.#client.get("/v1/table/", {
-      limit: options?.limit ?? 10,
-      // biome-ignore lint/style/useNamingConvention: <explanation>
-      page_token: options?.startAfter ?? "",
-    });
-    const body = await response.body();
-    for (const table of body.tables) {
-      this.#tableCache.set(table, true);
-    }
-    return body.tables;
-  }
-
-  async openTable(
-    name: string,
-    _options?: Partial<OpenTableOptions> | undefined,
-  ): Promise<Table> {
-    if (this.#tableCache.get(name) === undefined) {
-      await this.#client.post(
-        `/v1/table/${encodeURIComponent(name)}/describe/`,
-      );
-      this.#tableCache.set(name, true);
-    }
-    return new RemoteTable(this.#client, name, this.#dbName);
-  }
-
-  async createTable(
-    nameOrOptions:
-      | string
-      | ({ name: string; data: Data } & Partial<CreateTableOptions>),
-    data?: Data,
-    options?: Partial<CreateTableOptions> | undefined,
-  ): Promise<Table> {
-    if (typeof nameOrOptions !== "string" && "name" in nameOrOptions) {
-      const { name, data, ...options } = nameOrOptions;
-      return this.createTable(name, data, options);
-    }
-    if (data === undefined) {
-      throw new Error("data is required");
-    }
-    if (options?.mode) {
-      console.warn(
-        "option 'mode' is not supported in LanceDB Cloud",
-        "LanceDB Cloud only supports the default 'create' mode.",
-        "If the table already exists, an error will be thrown.",
-      );
-    }
-    if (options?.embeddingFunction) {
-      console.warn(
-        "embedding_functions is not yet supported on LanceDB Cloud.",
-        "Please vote https://github.com/lancedb/lancedb/issues/626 ",
-        "for this feature.",
-      );
-    }
-
-    const { buf } = await Table.parseTableData(
-      data,
-      options,
-      true /** streaming */,
-    );
-
-    await this.#client.post(
-      `/v1/table/${encodeURIComponent(nameOrOptions)}/create/`,
-      buf,
-      {
-        config: {
-          responseType: "arraybuffer",
-        },
-        headers: { "Content-Type": "application/vnd.apache.arrow.stream" },
-      },
-    );
-    this.#tableCache.set(nameOrOptions, true);
-    return new RemoteTable(this.#client, nameOrOptions, this.#dbName);
-  }
-
-  async createEmptyTable(
-    name: string,
-    schema: SchemaLike,
-    options?: Partial<CreateTableOptions> | undefined,
-  ): Promise<Table> {
-    if (options?.mode) {
-      console.warn(`mode is not supported on LanceDB Cloud`);
-    }
-
-    if (options?.embeddingFunction) {
-      console.warn(
-        "embeddingFunction is not yet supported on LanceDB Cloud.",
-        "Please vote https://github.com/lancedb/lancedb/issues/626 ",
-        "for this feature.",
-      );
-    }
-    const emptyTable = makeEmptyTable(schema);
-    const buf = await fromTableToStreamBuffer(emptyTable);
-
-    await this.#client.post(
-      `/v1/table/${encodeURIComponent(name)}/create/`,
-      buf,
-      {
-        config: {
-          responseType: "arraybuffer",
-        },
-        headers: { "Content-Type": "application/vnd.apache.arrow.stream" },
-      },
-    );
-
-    this.#tableCache.set(name, true);
-    return new RemoteTable(this.#client, name, this.#dbName);
-  }
-
-  async dropTable(name: string): Promise<void> {
-    await this.#client.post(`/v1/table/${encodeURIComponent(name)}/drop/`);
-
-    this.#tableCache.delete(name);
-  }
-}

nodejs/lancedb/remote/index.ts

@@ -1,3 +0,0 @@
-export { RestfulLanceDBClient } from "./client";
-export { type RemoteConnectionOptions, RemoteConnection } from "./connection";
-export { RemoteTable } from "./table";

nodejs/lancedb/remote/table.ts

@@ -1,226 +0,0 @@
-// Copyright 2023 LanceDB Developers.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-import { Table as ArrowTable } from "apache-arrow";
-
-import { Data, IntoVector } from "../arrow";
-
-import { IndexStatistics } from "..";
-import { CreateTableOptions } from "../connection";
-import { IndexOptions } from "../indices";
-import { MergeInsertBuilder } from "../merge";
-import { VectorQuery } from "../query";
-import { AddDataOptions, Table, UpdateOptions } from "../table";
-import { IntoSql, toSQL } from "../util";
-import { RestfulLanceDBClient } from "./client";
-
-export class RemoteTable extends Table {
-  #client: RestfulLanceDBClient;
-  #name: string;
-
-  // Used in the display() method
-  #dbName: string;
-
-  get #tablePrefix() {
-    return `/v1/table/${encodeURIComponent(this.#name)}/`;
-  }
-
-  get name(): string {
-    return this.#name;
-  }
-
-  public constructor(
-    client: RestfulLanceDBClient,
-    tableName: string,
-    dbName: string,
-  ) {
-    super();
-    this.#client = client;
-    this.#name = tableName;
-    this.#dbName = dbName;
-  }
-
-  isOpen(): boolean {
-    return !this.#client.isOpen();
-  }
-
-  close(): void {
-    this.#client.close();
-  }
-
-  display(): string {
-    return `RemoteTable(${this.#dbName}; ${this.#name})`;
-  }
-
-  async schema(): Promise<import("apache-arrow").Schema> {
-    const resp = await this.#client.post(`${this.#tablePrefix}/describe/`);
-    // TODO: parse this into a valid arrow schema
-    return resp.schema;
-  }
-  async add(data: Data, options?: Partial<AddDataOptions>): Promise<void> {
-    const { buf, mode } = await Table.parseTableData(
-      data,
-      options as CreateTableOptions,
-      true,
-    );
-    await this.#client.post(`${this.#tablePrefix}/insert/`, buf, {
-      params: {
-        mode,
-      },
-      headers: {
-        "Content-Type": "application/vnd.apache.arrow.stream",
-      },
-    });
-  }
-
-  async update(
-    optsOrUpdates:
-      | (Map<string, string> | Record<string, string>)
-      | ({
-          values: Map<string, IntoSql> | Record<string, IntoSql>;
-        } & Partial<UpdateOptions>)
-      | ({
-          valuesSql: Map<string, string> | Record<string, string>;
-        } & Partial<UpdateOptions>),
-    options?: Partial<UpdateOptions>,
-  ): Promise<void> {
-    const isValues =
-      "values" in optsOrUpdates && typeof optsOrUpdates.values !== "string";
-    const isValuesSql =
-      "valuesSql" in optsOrUpdates &&
-      typeof optsOrUpdates.valuesSql !== "string";
-    const isMap = (obj: unknown): obj is Map<string, string> => {
-      return obj instanceof Map;
-    };
-
-    let predicate;
-    let columns: [string, string][];
-    switch (true) {
-      case isMap(optsOrUpdates):
-        columns = Array.from(optsOrUpdates.entries());
-        predicate = options?.where;
-        break;
-      case isValues && isMap(optsOrUpdates.values):
-        columns = Array.from(optsOrUpdates.values.entries()).map(([k, v]) => [
-          k,
-          toSQL(v),
-        ]);
-        predicate = optsOrUpdates.where;
-        break;
-      case isValues && !isMap(optsOrUpdates.values):
-        columns = Object.entries(optsOrUpdates.values).map(([k, v]) => [
-          k,
-          toSQL(v),
-        ]);
-        predicate = optsOrUpdates.where;
-        break;
-
-      case isValuesSql && isMap(optsOrUpdates.valuesSql):
-        columns = Array.from(optsOrUpdates.valuesSql.entries());
-        predicate = optsOrUpdates.where;
-        break;
-      case isValuesSql && !isMap(optsOrUpdates.valuesSql):
-        columns = Object.entries(optsOrUpdates.valuesSql).map(([k, v]) => [
-          k,
-          v,
-        ]);
-        predicate = optsOrUpdates.where;
-        break;
-      default:
-        columns = Object.entries(optsOrUpdates as Record<string, string>);
-        predicate = options?.where;
-    }
-
-    await this.#client.post(`${this.#tablePrefix}/update/`, {
-      predicate: predicate ?? null,
-      updates: columns,
-    });
-  }
-  async countRows(filter?: unknown): Promise<number> {
-    const payload = { predicate: filter };
-    return await this.#client.post(`${this.#tablePrefix}/count_rows/`, payload);
-  }
-
-  async delete(predicate: unknown): Promise<void> {
-    const payload = { predicate };
-    await this.#client.post(`${this.#tablePrefix}/delete/`, payload);
-  }
-  async createIndex(
-    column: string,
-    options?: Partial<IndexOptions>,
-  ): Promise<void> {
-    if (options !== undefined) {
-      console.warn("options are not yet supported on the LanceDB cloud");
-    }
-    const indexType = "vector";
-    const metric = "L2";
-    const data = {
-      column,
-      // biome-ignore lint/style/useNamingConvention: external API
-      index_type: indexType,
-      // biome-ignore lint/style/useNamingConvention: external API
-      metric_type: metric,
-    };
-    await this.#client.post(`${this.#tablePrefix}/create_index`, data);
-  }
-  query(): import("..").Query {
-    throw new Error("query() is not yet supported on the LanceDB cloud");
-  }
-
-  search(_query: string | IntoVector): VectorQuery {
-    throw new Error("search() is not yet supported on the LanceDB cloud");
-  }
-  vectorSearch(_vector: unknown): import("..").VectorQuery {
-    throw new Error("vectorSearch() is not yet supported on the LanceDB cloud");
-  }
-  addColumns(_newColumnTransforms: unknown): Promise<void> {
-    throw new Error("addColumns() is not yet supported on the LanceDB cloud");
-  }
-  alterColumns(_columnAlterations: unknown): Promise<void> {
-    throw new Error("alterColumns() is not yet supported on the LanceDB cloud");
-  }
-  dropColumns(_columnNames: unknown): Promise<void> {
-    throw new Error("dropColumns() is not yet supported on the LanceDB cloud");
-  }
-  async version(): Promise<number> {
-    const resp = await this.#client.post(`${this.#tablePrefix}/describe/`);
-    return resp.version;
-  }
-  checkout(_version: unknown): Promise<void> {
-    throw new Error("checkout() is not yet supported on the LanceDB cloud");
-  }
-  checkoutLatest(): Promise<void> {
-    throw new Error(
-      "checkoutLatest() is not yet supported on the LanceDB cloud",
-    );
-  }
-  restore(): Promise<void> {
-    throw new Error("restore() is not yet supported on the LanceDB cloud");
-  }
-  optimize(_options?: unknown): Promise<import("../native").OptimizeStats> {
-    throw new Error("optimize() is not yet supported on the LanceDB cloud");
-  }
-  async listIndices(): Promise<import("../native").IndexConfig[]> {
-    return await this.#client.post(`${this.#tablePrefix}/index/list/`);
-  }
-  toArrow(): Promise<ArrowTable> {
-    throw new Error("toArrow() is not yet supported on the LanceDB cloud");
-  }
-  mergeInsert(_on: string | string[]): MergeInsertBuilder {
-    throw new Error("mergeInsert() is not yet supported on the LanceDB cloud");
-  }
-  async indexStats(_name: string): Promise<IndexStatistics | undefined> {
-    throw new Error("indexStats() is not yet supported on the LanceDB cloud");
-  }
-}

nodejs/native.d.ts

@@ -1,208 +0,0 @@
-/* tslint:disable */
-/* eslint-disable */
-
-/* auto-generated by NAPI-RS */
-
-/** A description of an index currently configured on a column */
-export interface IndexConfig {
-  /** The name of the index */
-  name: string
-  /** The type of the index */
-  indexType: string
-  /**
-   * The columns in the index
-   *
-   * Currently this is always an array of size 1. In the future there may
-   * be more columns to represent composite indices.
-   */
-  columns: Array<string>
-}
-/** Statistics about a compaction operation. */
-export interface CompactionStats {
-  /** The number of fragments removed */
-  fragmentsRemoved: number
-  /** The number of new, compacted fragments added */
-  fragmentsAdded: number
-  /** The number of data files removed */
-  filesRemoved: number
-  /** The number of new, compacted data files added */
-  filesAdded: number
-}
-/** Statistics about a cleanup operation */
-export interface RemovalStats {
-  /** The number of bytes removed */
-  bytesRemoved: number
-  /** The number of old versions removed */
-  oldVersionsRemoved: number
-}
-/** Statistics about an optimize operation */
-export interface OptimizeStats {
-  /** Statistics about the compaction operation */
-  compaction: CompactionStats
-  /** Statistics about the removal operation */
-  prune: RemovalStats
-}
-/**
- *  A definition of a column alteration. The alteration changes the column at
- * `path` to have the new name `name`, to be nullable if `nullable` is true,
- * and to have the data type `data_type`. At least one of `rename` or `nullable`
- * must be provided.
- */
-export interface ColumnAlteration {
-  /**
-   * The path to the column to alter. This is a dot-separated path to the column.
-   * If it is a top-level column then it is just the name of the column. If it is
-   * a nested column then it is the path to the column, e.g. "a.b.c" for a column
-   * `c` nested inside a column `b` nested inside a column `a`.
-   */
-  path: string
-  /**
-   * The new name of the column. If not provided then the name will not be changed.
-   * This must be distinct from the names of all other columns in the table.
-   */
-  rename?: string
-  /** Set the new nullability. Note that a nullable column cannot be made non-nullable. */
-  nullable?: boolean
-}
-/** A definition of a new column to add to a table. */
-export interface AddColumnsSql {
-  /** The name of the new column. */
-  name: string
-  /**
-   * The values to populate the new column with, as a SQL expression.
-   * The expression can reference other columns in the table.
-   */
-  valueSql: string
-}
-export interface IndexStatistics {
-  /** The number of rows indexed by the index */
-  numIndexedRows: number
-  /** The number of rows not indexed */
-  numUnindexedRows: number
-  /** The type of the index */
-  indexType?: string
-  /** The metadata for each index */
-  indices: Array<IndexMetadata>
-}
-export interface IndexMetadata {
-  metricType?: string
-  indexType?: string
-}
-export interface ConnectionOptions {
-  /**
-   * (For LanceDB OSS only): The interval, in seconds, at which to check for
-   * updates to the table from other processes. If None, then consistency is not
-   * checked. For performance reasons, this is the default. For strong
-   * consistency, set this to zero seconds. Then every read will check for
-   * updates from other processes. As a compromise, you can set this to a
-   * non-zero value for eventual consistency. If more than that interval
-   * has passed since the last check, then the table will be checked for updates.
-   * Note: this consistency only applies to read operations. Write operations are
-   * always consistent.
-   */
-  readConsistencyInterval?: number
-  /**
-   * (For LanceDB OSS only): configuration for object storage.
-   *
-   * The available options are described at https://lancedb.github.io/lancedb/guides/storage/
-   */
-  storageOptions?: Record<string, string>
-}
-/** Write mode for writing a table. */
-export const enum WriteMode {
-  Create = 'Create',
-  Append = 'Append',
-  Overwrite = 'Overwrite'
-}
-/** Write options when creating a Table. */
-export interface WriteOptions {
-  /** Write mode for writing to a table. */
-  mode?: WriteMode
-}
-export interface OpenTableOptions {
-  storageOptions?: Record<string, string>
-}
-export class Connection {
-  /** Create a new Connection instance from the given URI. */
-  static new(uri: string, options: ConnectionOptions): Promise<Connection>
-  display(): string
-  isOpen(): boolean
-  close(): void
-  /** List all tables in the dataset. */
-  tableNames(startAfter?: string | undefined | null, limit?: number | undefined | null): Promise<Array<string>>
-  /**
-   * Create table from a Apache Arrow IPC (file) buffer.
-   *
-   * Parameters:
-   * - name: The name of the table.
-   * - buf: The buffer containing the IPC file.
-   *
-   */
-  createTable(name: string, buf: Buffer, mode: string, storageOptions?: Record<string, string> | undefined | null, useLegacyFormat?: boolean | undefined | null): Promise<Table>
-  createEmptyTable(name: string, schemaBuf: Buffer, mode: string, storageOptions?: Record<string, string> | undefined | null, useLegacyFormat?: boolean | undefined | null): Promise<Table>
-  openTable(name: string, storageOptions?: Record<string, string> | undefined | null, indexCacheSize?: number | undefined | null): Promise<Table>
-  /** Drop table with the name. Or raise an error if the table does not exist. */
-  dropTable(name: string): Promise<void>
-}
-export class Index {
-  static ivfPq(distanceType?: string | undefined | null, numPartitions?: number | undefined | null, numSubVectors?: number | undefined | null, maxIterations?: number | undefined | null, sampleRate?: number | undefined | null): Index
-  static btree(): Index
-}
-/** Typescript-style Async Iterator over RecordBatches  */
-export class RecordBatchIterator {
-  next(): Promise<Buffer | null>
-}
-/** A builder used to create and run a merge insert operation */
-export class NativeMergeInsertBuilder {
-  whenMatchedUpdateAll(condition?: string | undefined | null): NativeMergeInsertBuilder
-  whenNotMatchedInsertAll(): NativeMergeInsertBuilder
-  whenNotMatchedBySourceDelete(filter?: string | undefined | null): NativeMergeInsertBuilder
-  execute(buf: Buffer): Promise<void>
-}
-export class Query {
-  onlyIf(predicate: string): void
-  select(columns: Array<[string, string]>): void
-  limit(limit: number): void
-  nearestTo(vector: Float32Array): VectorQuery
-  execute(maxBatchLength?: number | undefined | null): Promise<RecordBatchIterator>
-  explainPlan(verbose: boolean): Promise<string>
-}
-export class VectorQuery {
-  column(column: string): void
-  distanceType(distanceType: string): void
-  postfilter(): void
-  refineFactor(refineFactor: number): void
-  nprobes(nprobe: number): void
-  bypassVectorIndex(): void
-  onlyIf(predicate: string): void
-  select(columns: Array<[string, string]>): void
-  limit(limit: number): void
-  execute(maxBatchLength?: number | undefined | null): Promise<RecordBatchIterator>
-  explainPlan(verbose: boolean): Promise<string>
-}
-export class Table {
-  name: string
-  display(): string
-  isOpen(): boolean
-  close(): void
-  /** Return Schema as empty Arrow IPC file. */
-  schema(): Promise<Buffer>
-  add(buf: Buffer, mode: string): Promise<void>
-  countRows(filter?: string | undefined | null): Promise<number>
-  delete(predicate: string): Promise<void>
-  createIndex(index: Index | undefined | null, column: string, replace?: boolean | undefined | null): Promise<void>
-  update(onlyIf: string | undefined | null, columns: Array<[string, string]>): Promise<void>
-  query(): Query
-  vectorSearch(vector: Float32Array): VectorQuery
-  addColumns(transforms: Array<AddColumnsSql>): Promise<void>
-  alterColumns(alterations: Array<ColumnAlteration>): Promise<void>
-  dropColumns(columns: Array<string>): Promise<void>
-  version(): Promise<number>
-  checkout(version: number): Promise<void>
-  checkoutLatest(): Promise<void>
-  restore(): Promise<void>
-  optimize(olderThanMs?: number | undefined | null): Promise<OptimizeStats>
-  listIndices(): Promise<Array<IndexConfig>>
-  indexStats(indexName: string): Promise<IndexStatistics | null>
-  mergeInsert(on: Array<string>): NativeMergeInsertBuilder
-}

nodejs/npm/darwin-arm64/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@lancedb/lancedb-darwin-arm64",
-	"version": "0.10.0-beta.1",
+	"version": "0.12.0",
 	"os": ["darwin"],
 	"cpu": ["arm64"],
 	"main": "lancedb.darwin-arm64.node",

nodejs/npm/darwin-x64/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@lancedb/lancedb-darwin-x64",
-	"version": "0.10.0-beta.1",
+	"version": "0.12.0",
 	"os": ["darwin"],
 	"cpu": ["x64"],
 	"main": "lancedb.darwin-x64.node",

nodejs/npm/linux-arm64-gnu/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@lancedb/lancedb-linux-arm64-gnu",
-	"version": "0.10.0-beta.1",
+	"version": "0.12.0",
 	"os": ["linux"],
 	"cpu": ["arm64"],
 	"main": "lancedb.linux-arm64-gnu.node",

nodejs/npm/linux-x64-gnu/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@lancedb/lancedb-linux-x64-gnu",
-	"version": "0.10.0-beta.1",
+	"version": "0.12.0",
 	"os": ["linux"],
 	"cpu": ["x64"],
 	"main": "lancedb.linux-x64-gnu.node",

nodejs/npm/win32-x64-msvc/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@lancedb/lancedb-win32-x64-msvc",
-	"version": "0.10.0-beta.1",
+	"version": "0.12.0",
 	"os": ["win32"],
 	"cpu": ["x64"],
 	"main": "lancedb.win32-x64-msvc.node",

nodejs/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "@lancedb/lancedb",
-  "version": "0.10.0-beta.1",
+  "version": "0.11.1-beta.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@lancedb/lancedb",
-      "version": "0.10.0-beta.1",
+      "version": "0.11.1-beta.1",
       "cpu": [
         "x64",
         "arm64"
@@ -18,7 +18,6 @@
         "win32"
       ],
       "dependencies": {
-        "axios": "^1.7.2",
         "reflect-metadata": "^0.2.2"
       },
       "devDependencies": {
@@ -30,6 +29,7 @@
         "@napi-rs/cli": "^2.18.3",
         "@types/axios": "^0.14.0",
         "@types/jest": "^29.1.2",
+        "@types/node": "^22.7.4",
         "@types/tmp": "^0.2.6",
         "apache-arrow-13": "npm:apache-arrow@13.0.0",
         "apache-arrow-14": "npm:apache-arrow@14.0.0",
@@ -4648,11 +4648,12 @@
       "optional": true
     },
     "node_modules/@types/node": {
-      "version": "20.14.11",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.14.11.tgz",
-      "integrity": "sha512-kprQpL8MMeszbz6ojB5/tU8PLN4kesnN8Gjzw349rDlNgsSzg90lAVj3llK99Dh7JON+t9AuscPPFW6mPbTnSA==",
+      "version": "22.7.4",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.7.4.tgz",
+      "integrity": "sha512-y+NPi1rFzDs1NdQHHToqeiX2TIS79SWEAw9GYhkkx8bD0ChpfqC+n2j5OXOCpzfojBEBt6DnEnnG9MY0zk1XLg==",
+      "devOptional": true,
       "dependencies": {
-        "undici-types": "~5.26.4"
+        "undici-types": "~6.19.2"
       }
     },
     "node_modules/@types/node-fetch": {
@@ -4665,6 +4666,12 @@
         "form-data": "^4.0.0"
       }
     },
+    "node_modules/@types/node/node_modules/undici-types": {
+      "version": "6.19.8",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.19.8.tgz",
+      "integrity": "sha512-ve2KP6f/JnbPBFyobGHuerC9g1FYGn/F8n1LWTwNxCEzd6IfqTwUQcNXgEtmmQ6DlRrC1hrSrBnCZPokRrDHjw==",
+      "devOptional": true
+    },
     "node_modules/@types/pad-left": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/@types/pad-left/-/pad-left-2.1.1.tgz",
@@ -4963,6 +4970,21 @@
         "arrow2csv": "bin/arrow2csv.cjs"
       }
     },
+    "node_modules/apache-arrow-15/node_modules/@types/node": {
+      "version": "20.16.10",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.16.10.tgz",
+      "integrity": "sha512-vQUKgWTjEIRFCvK6CyriPH3MZYiYlNy0fKiEYHWbcoWLEgs4opurGGKlebrTLqdSMIbXImH6XExNiIyNUv3WpA==",
+      "dev": true,
+      "dependencies": {
+        "undici-types": "~6.19.2"
+      }
+    },
+    "node_modules/apache-arrow-15/node_modules/undici-types": {
+      "version": "6.19.8",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.19.8.tgz",
+      "integrity": "sha512-ve2KP6f/JnbPBFyobGHuerC9g1FYGn/F8n1LWTwNxCEzd6IfqTwUQcNXgEtmmQ6DlRrC1hrSrBnCZPokRrDHjw==",
+      "dev": true
+    },
     "node_modules/apache-arrow-16": {
       "name": "apache-arrow",
       "version": "16.0.0",
@@ -4984,6 +5006,21 @@
         "arrow2csv": "bin/arrow2csv.cjs"
       }
     },
+    "node_modules/apache-arrow-16/node_modules/@types/node": {
+      "version": "20.16.10",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.16.10.tgz",
+      "integrity": "sha512-vQUKgWTjEIRFCvK6CyriPH3MZYiYlNy0fKiEYHWbcoWLEgs4opurGGKlebrTLqdSMIbXImH6XExNiIyNUv3WpA==",
+      "dev": true,
+      "dependencies": {
+        "undici-types": "~6.19.2"
+      }
+    },
+    "node_modules/apache-arrow-16/node_modules/undici-types": {
+      "version": "6.19.8",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.19.8.tgz",
+      "integrity": "sha512-ve2KP6f/JnbPBFyobGHuerC9g1FYGn/F8n1LWTwNxCEzd6IfqTwUQcNXgEtmmQ6DlRrC1hrSrBnCZPokRrDHjw==",
+      "dev": true
+    },
     "node_modules/apache-arrow-17": {
       "name": "apache-arrow",
       "version": "17.0.0",
@@ -5011,12 +5048,42 @@
       "integrity": "sha512-BwR5KP3Es/CSht0xqBcUXS3qCAUVXwpRKsV2+arxeb65atasuXG9LykC9Ab10Cw3s2raH92ZqOeILaQbsB2ACg==",
       "dev": true
     },
+    "node_modules/apache-arrow-17/node_modules/@types/node": {
+      "version": "20.16.10",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.16.10.tgz",
+      "integrity": "sha512-vQUKgWTjEIRFCvK6CyriPH3MZYiYlNy0fKiEYHWbcoWLEgs4opurGGKlebrTLqdSMIbXImH6XExNiIyNUv3WpA==",
+      "dev": true,
+      "dependencies": {
+        "undici-types": "~6.19.2"
+      }
+    },
     "node_modules/apache-arrow-17/node_modules/flatbuffers": {
       "version": "24.3.25",
       "resolved": "https://registry.npmjs.org/flatbuffers/-/flatbuffers-24.3.25.tgz",
       "integrity": "sha512-3HDgPbgiwWMI9zVB7VYBHaMrbOO7Gm0v+yD2FV/sCKj+9NDeVL7BOBYUuhWAQGKWOzBo8S9WdMvV0eixO233XQ==",
       "dev": true
     },
+    "node_modules/apache-arrow-17/node_modules/undici-types": {
+      "version": "6.19.8",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.19.8.tgz",
+      "integrity": "sha512-ve2KP6f/JnbPBFyobGHuerC9g1FYGn/F8n1LWTwNxCEzd6IfqTwUQcNXgEtmmQ6DlRrC1hrSrBnCZPokRrDHjw==",
+      "dev": true
+    },
+    "node_modules/apache-arrow/node_modules/@types/node": {
+      "version": "20.16.10",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.16.10.tgz",
+      "integrity": "sha512-vQUKgWTjEIRFCvK6CyriPH3MZYiYlNy0fKiEYHWbcoWLEgs4opurGGKlebrTLqdSMIbXImH6XExNiIyNUv3WpA==",
+      "peer": true,
+      "dependencies": {
+        "undici-types": "~6.19.2"
+      }
+    },
+    "node_modules/apache-arrow/node_modules/undici-types": {
+      "version": "6.19.8",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.19.8.tgz",
+      "integrity": "sha512-ve2KP6f/JnbPBFyobGHuerC9g1FYGn/F8n1LWTwNxCEzd6IfqTwUQcNXgEtmmQ6DlRrC1hrSrBnCZPokRrDHjw==",
+      "peer": true
+    },
     "node_modules/argparse": {
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
@@ -5046,12 +5113,14 @@
     "node_modules/asynckit": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
-      "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q=="
+      "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==",
+      "devOptional": true
     },
     "node_modules/axios": {
       "version": "1.7.2",
       "resolved": "https://registry.npmjs.org/axios/-/axios-1.7.2.tgz",
       "integrity": "sha512-2A8QhOMrbomlDuiLeK9XibIBzuHeRcqqNOHp0Cyp5EoJ1IFDh+XZH3A6BkXtv0K4gFGCI0Y4BM7B1wOEi0Rmgw==",
+      "dev": true,
       "dependencies": {
         "follow-redirects": "^1.15.6",
         "form-data": "^4.0.0",
@@ -5536,6 +5605,7 @@
       "version": "1.0.8",
       "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
       "integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
+      "devOptional": true,
       "dependencies": {
         "delayed-stream": "~1.0.0"
       },
@@ -5723,6 +5793,7 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
       "integrity": "sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ==",
+      "devOptional": true,
       "engines": {
         "node": ">=0.4.0"
       }
@@ -6248,6 +6319,7 @@
       "version": "1.15.6",
       "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.6.tgz",
       "integrity": "sha512-wWN62YITEaOpSK584EZXJafH1AGpO8RVgElfkuXbTOrPX4fIfOyEpW/CsiNd8JdYrAoOvafRTOEnvsO++qCqFA==",
+      "dev": true,
       "funding": [
         {
           "type": "individual",
@@ -6267,6 +6339,7 @@
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.0.tgz",
       "integrity": "sha512-ETEklSGi5t0QMZuiXoA/Q6vcnxcLQP5vdugSpuAyi6SVGi2clPPp+xgEhuMaHC+zGgn31Kd235W35f7Hykkaww==",
+      "devOptional": true,
       "dependencies": {
         "asynckit": "^0.4.0",
         "combined-stream": "^1.0.8",
@@ -7773,6 +7846,7 @@
       "version": "1.52.0",
       "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
       "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
+      "devOptional": true,
       "engines": {
         "node": ">= 0.6"
       }
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