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Author SHA1 Message Date
qzhu
5f187d4db6 docs: Add async api index types 2024-11-21 16:26:32 -08:00
441 changed files with 10054 additions and 42726 deletions

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@@ -1,5 +1,5 @@
[tool.bumpversion]
current_version = "0.19.1-beta.1"
current_version = "0.13.1-beta.0"
parse = """(?x)
(?P<major>0|[1-9]\\d*)\\.
(?P<minor>0|[1-9]\\d*)\\.
@@ -87,11 +87,26 @@ 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-linux-arm64-musl\": \"{new_version}\""
search = "\"@lancedb/vectordb-linux-arm64-musl\": \"{current_version}\""
[[tool.bumpversion.files]]
glob = "node/package.json"
replace = "\"@lancedb/vectordb-linux-x64-musl\": \"{new_version}\""
search = "\"@lancedb/vectordb-linux-x64-musl\": \"{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}\""
[[tool.bumpversion.files]]
glob = "node/package.json"
replace = "\"@lancedb/vectordb-win32-arm64-msvc\": \"{new_version}\""
search = "\"@lancedb/vectordb-win32-arm64-msvc\": \"{current_version}\""
# Cargo files
# ------------
[[tool.bumpversion.files]]

View File

@@ -34,10 +34,6 @@ rustflags = ["-C", "target-cpu=haswell", "-C", "target-feature=+avx2,+fma,+f16c"
[target.x86_64-unknown-linux-musl]
rustflags = ["-C", "target-cpu=haswell", "-C", "target-feature=-crt-static,+avx2,+fma,+f16c"]
[target.aarch64-unknown-linux-musl]
linker = "aarch64-linux-musl-gcc"
rustflags = ["-C", "target-feature=-crt-static"]
[target.aarch64-apple-darwin]
rustflags = ["-C", "target-cpu=apple-m1", "-C", "target-feature=+neon,+fp16,+fhm,+dotprod"]
@@ -48,4 +44,4 @@ rustflags = ["-Ctarget-feature=+crt-static"]
# Experimental target for Arm64 Windows
[target.aarch64-pc-windows-msvc]
rustflags = ["-Ctarget-feature=+crt-static"]
rustflags = ["-Ctarget-feature=+crt-static"]

View File

@@ -36,7 +36,8 @@ runs:
args: ${{ inputs.args }}
before-script-linux: |
set -e
curl -L https://github.com/protocolbuffers/protobuf/releases/download/v24.4/protoc-24.4-linux-$(uname -m).zip > /tmp/protoc.zip \
yum install -y openssl-devel \
&& curl -L https://github.com/protocolbuffers/protobuf/releases/download/v24.4/protoc-24.4-linux-$(uname -m).zip > /tmp/protoc.zip \
&& unzip /tmp/protoc.zip -d /usr/local \
&& rm /tmp/protoc.zip
- name: Build Arm Manylinux Wheel
@@ -51,7 +52,12 @@ runs:
args: ${{ inputs.args }}
before-script-linux: |
set -e
yum install -y clang \
&& curl -L https://github.com/protocolbuffers/protobuf/releases/download/v24.4/protoc-24.4-linux-aarch_64.zip > /tmp/protoc.zip \
apt install -y unzip
if [ $(uname -m) = "x86_64" ]; then
PROTOC_ARCH="x86_64"
else
PROTOC_ARCH="aarch_64"
fi
curl -L https://github.com/protocolbuffers/protobuf/releases/download/v24.4/protoc-24.4-linux-$PROTOC_ARCH.zip > /tmp/protoc.zip \
&& unzip /tmp/protoc.zip -d /usr/local \
&& rm /tmp/protoc.zip

View File

@@ -20,7 +20,7 @@ runs:
uses: PyO3/maturin-action@v1
with:
command: build
# TODO: pass through interpreter
args: ${{ inputs.args }}
docker-options: "-e PIP_EXTRA_INDEX_URL=https://pypi.fury.io/lancedb/"
working-directory: python
interpreter: 3.${{ inputs.python-minor-version }}

View File

@@ -28,7 +28,7 @@ runs:
args: ${{ inputs.args }}
docker-options: "-e PIP_EXTRA_INDEX_URL=https://pypi.fury.io/lancedb/"
working-directory: python
- uses: actions/upload-artifact@v4
- uses: actions/upload-artifact@v3
with:
name: windows-wheels
path: python\target\wheels

View File

@@ -18,24 +18,17 @@ concurrency:
group: "pages"
cancel-in-progress: true
env:
# This reduces the disk space needed for the build
RUSTFLAGS: "-C debuginfo=0"
# according to: https://matklad.github.io/2021/09/04/fast-rust-builds.html
# CI builds are faster with incremental disabled.
CARGO_INCREMENTAL: "0"
jobs:
# Single deploy job since we're just deploying
build:
environment:
name: github-pages
url: ${{ steps.deployment.outputs.page_url }}
runs-on: ubuntu-24.04
runs-on: buildjet-8vcpu-ubuntu-2204
steps:
- name: Checkout
uses: actions/checkout@v4
- name: Install dependencies needed for ubuntu
- name: Install dependecies needed for ubuntu
run: |
sudo apt install -y protobuf-compiler libssl-dev
rustup update && rustup default
@@ -45,7 +38,6 @@ jobs:
python-version: "3.10"
cache: "pip"
cache-dependency-path: "docs/requirements.txt"
- uses: Swatinem/rust-cache@v2
- name: Build Python
working-directory: python
run: |
@@ -57,6 +49,7 @@ jobs:
node-version: 20
cache: 'npm'
cache-dependency-path: node/package-lock.json
- uses: Swatinem/rust-cache@v2
- name: Install node dependencies
working-directory: node
run: |
@@ -79,9 +72,9 @@ jobs:
- name: Setup Pages
uses: actions/configure-pages@v2
- name: Upload artifact
uses: actions/upload-pages-artifact@v3
uses: actions/upload-pages-artifact@v1
with:
path: "docs/site"
- name: Deploy to GitHub Pages
id: deployment
uses: actions/deploy-pages@v4
uses: actions/deploy-pages@v1

View File

@@ -43,7 +43,7 @@ jobs:
- uses: Swatinem/rust-cache@v2
- uses: actions-rust-lang/setup-rust-toolchain@v1
with:
toolchain: "1.81.0"
toolchain: "1.79.0"
cache-workspaces: "./java/core/lancedb-jni"
# Disable full debug symbol generation to speed up CI build and keep memory down
# "1" means line tables only, which is useful for panic tracebacks.
@@ -97,7 +97,7 @@ jobs:
- name: Dry run
if: github.event_name == 'pull_request'
run: |
mvn --batch-mode -DskipTests -Drust.release.build=true package
mvn --batch-mode -DskipTests package
- name: Set github
run: |
git config --global user.email "LanceDB Github Runner"
@@ -108,7 +108,7 @@ jobs:
echo "use-agent" >> ~/.gnupg/gpg.conf
echo "pinentry-mode loopback" >> ~/.gnupg/gpg.conf
export GPG_TTY=$(tty)
mvn --batch-mode -DskipTests -Drust.release.build=true -DpushChanges=false -Dgpg.passphrase=${{ secrets.GPG_PASSPHRASE }} deploy -P deploy-to-ossrh
mvn --batch-mode -DskipTests -DpushChanges=false -Dgpg.passphrase=${{ secrets.GPG_PASSPHRASE }} deploy -P deploy-to-ossrh
env:
SONATYPE_USER: ${{ secrets.SONATYPE_USER }}
SONATYPE_TOKEN: ${{ secrets.SONATYPE_TOKEN }}

View File

@@ -1,31 +0,0 @@
name: Check license headers
on:
push:
branches:
- main
pull_request:
paths:
- rust/**
- python/**
- nodejs/**
- java/**
- .github/workflows/license-header-check.yml
jobs:
check-licenses:
runs-on: ubuntu-latest
steps:
- name: Check out code
uses: actions/checkout@v4
- name: Install license-header-checker
working-directory: /tmp
run: |
curl -s https://raw.githubusercontent.com/lluissm/license-header-checker/master/install.sh | bash
mv /tmp/bin/license-header-checker /usr/local/bin/
- name: Check license headers (rust)
run: license-header-checker -a -v ./rust/license_header.txt ./ rs && [[ -z `git status -s` ]]
- name: Check license headers (python)
run: license-header-checker -a -v ./python/license_header.txt python py && [[ -z `git status -s` ]]
- name: Check license headers (typescript)
run: license-header-checker -a -v ./nodejs/license_header.txt nodejs ts && [[ -z `git status -s` ]]
- name: Check license headers (java)
run: license-header-checker -a -v ./nodejs/license_header.txt java java && [[ -z `git status -s` ]]

View File

@@ -43,7 +43,7 @@ on:
jobs:
make-release:
# Creates tag and GH release. The GH release will trigger the build and release jobs.
runs-on: ubuntu-24.04
runs-on: ubuntu-latest
permissions:
contents: write
steps:
@@ -57,14 +57,15 @@ jobs:
# trigger any workflows watching for new tags. See:
# https://docs.github.com/en/actions/using-workflows/triggering-a-workflow#triggering-a-workflow-from-a-workflow
token: ${{ secrets.LANCEDB_RELEASE_TOKEN }}
- name: Validate Lance dependency is at stable version
if: ${{ inputs.type == 'stable' }}
run: python ci/validate_stable_lance.py
- name: Set git configs for bumpversion
shell: bash
run: |
git config user.name 'Lance Release'
git config user.email 'lance-dev@lancedb.com'
- name: Set up Python 3.11
uses: actions/setup-python@v5
with:
python-version: "3.11"
- name: Bump Python version
if: ${{ inputs.python }}
working-directory: python
@@ -96,7 +97,3 @@ jobs:
if: ${{ !inputs.dry_run && inputs.other }}
with:
github_token: ${{ secrets.GITHUB_TOKEN }}
- uses: ./.github/workflows/update_package_lock_nodejs
if: ${{ !inputs.dry_run && inputs.other }}
with:
github_token: ${{ secrets.GITHUB_TOKEN }}

View File

@@ -106,18 +106,6 @@ jobs:
python ci/mock_openai.py &
cd nodejs/examples
npm test
- name: Check docs
run: |
# We run this as part of the job because the binary needs to be built
# first to export the types of the native code.
set -e
npm ci
npm run docs
if ! git diff --exit-code; then
echo "Docs need to be updated"
echo "Run 'npm run docs', fix any warnings, and commit the changes."
exit 1
fi
macos:
timeout-minutes: 30
runs-on: "macos-14"

File diff suppressed because it is too large Load Diff

View File

@@ -4,11 +4,6 @@ on:
push:
tags:
- 'python-v*'
pull_request:
# This should trigger a dry run (we skip the final publish step)
paths:
- .github/workflows/pypi-publish.yml
- Cargo.toml # Change in dependency frequently breaks builds
jobs:
linux:
@@ -20,21 +15,15 @@ jobs:
- platform: x86_64
manylinux: "2_17"
extra_args: ""
runner: ubuntu-22.04
- platform: x86_64
manylinux: "2_28"
extra_args: "--features fp16kernels"
runner: ubuntu-22.04
- platform: aarch64
manylinux: "2_17"
manylinux: "2_24"
extra_args: ""
# For successful fat LTO builds, we need a large runner to avoid OOM errors.
runner: ubuntu-2404-8x-arm64
- platform: aarch64
manylinux: "2_28"
extra_args: "--features fp16kernels"
runner: ubuntu-2404-8x-arm64
runs-on: ${{ matrix.config.runner }}
# We don't build fp16 kernels for aarch64, because it uses
# cross compilation image, which doesn't have a new enough compiler.
runs-on: "ubuntu-22.04"
steps:
- uses: actions/checkout@v4
with:
@@ -51,7 +40,6 @@ jobs:
arm-build: ${{ matrix.config.platform == 'aarch64' }}
manylinux: ${{ matrix.config.manylinux }}
- uses: ./.github/workflows/upload_wheel
if: startsWith(github.ref, 'refs/tags/python-v')
with:
pypi_token: ${{ secrets.LANCEDB_PYPI_API_TOKEN }}
fury_token: ${{ secrets.FURY_TOKEN }}
@@ -81,7 +69,6 @@ jobs:
python-minor-version: 8
args: "--release --strip --target ${{ matrix.config.target }} --features fp16kernels"
- uses: ./.github/workflows/upload_wheel
if: startsWith(github.ref, 'refs/tags/python-v')
with:
pypi_token: ${{ secrets.LANCEDB_PYPI_API_TOKEN }}
fury_token: ${{ secrets.FURY_TOKEN }}
@@ -96,19 +83,17 @@ jobs:
- name: Set up Python
uses: actions/setup-python@v4
with:
python-version: 3.12
python-version: 3.8
- uses: ./.github/workflows/build_windows_wheel
with:
python-minor-version: 8
args: "--release --strip"
vcpkg_token: ${{ secrets.VCPKG_GITHUB_PACKAGES }}
- uses: ./.github/workflows/upload_wheel
if: startsWith(github.ref, 'refs/tags/python-v')
with:
pypi_token: ${{ secrets.LANCEDB_PYPI_API_TOKEN }}
fury_token: ${{ secrets.FURY_TOKEN }}
gh-release:
if: startsWith(github.ref, 'refs/tags/python-v')
runs-on: ubuntu-latest
permissions:
contents: write

View File

@@ -13,11 +13,6 @@ concurrency:
group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
cancel-in-progress: true
env:
# Color output for pytest is off by default.
PYTEST_ADDOPTS: "--color=yes"
FORCE_COLOR: "1"
jobs:
lint:
name: "Lint"
@@ -35,17 +30,16 @@ jobs:
- name: Set up Python
uses: actions/setup-python@v5
with:
python-version: "3.12"
python-version: "3.11"
- name: Install ruff
run: |
pip install ruff==0.9.9
pip install ruff==0.5.4
- name: Format check
run: ruff format --check .
- name: Lint
run: ruff check .
type-check:
name: "Type Check"
doctest:
name: "Doctest"
timeout-minutes: 30
runs-on: "ubuntu-22.04"
defaults:
@@ -60,36 +54,7 @@ jobs:
- name: Set up Python
uses: actions/setup-python@v5
with:
python-version: "3.12"
- name: Install protobuf compiler
run: |
sudo apt update
sudo apt install -y protobuf-compiler
pip install toml
- name: Install dependencies
run: |
python ../ci/parse_requirements.py pyproject.toml --extras dev,tests,embeddings > requirements.txt
pip install -r requirements.txt
- name: Run pyright
run: pyright
doctest:
name: "Doctest"
timeout-minutes: 30
runs-on: "ubuntu-24.04"
defaults:
run:
shell: bash
working-directory: python
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0
lfs: true
- name: Set up Python
uses: actions/setup-python@v5
with:
python-version: "3.12"
python-version: "3.11"
cache: "pip"
- name: Install protobuf
run: |
@@ -110,8 +75,8 @@ jobs:
timeout-minutes: 30
strategy:
matrix:
python-minor-version: ["9", "12"]
runs-on: "ubuntu-24.04"
python-minor-version: ["9", "11"]
runs-on: "ubuntu-22.04"
defaults:
run:
shell: bash
@@ -136,10 +101,6 @@ jobs:
- uses: ./.github/workflows/run_tests
with:
integration: true
- name: Test without pylance or pandas
run: |
pip uninstall -y pylance pandas
pytest -vv python/tests/test_table.py
# Make sure wheels are not included in the Rust cache
- name: Delete wheels
run: rm -rf target/wheels
@@ -166,7 +127,7 @@ jobs:
- name: Set up Python
uses: actions/setup-python@v5
with:
python-version: "3.12"
python-version: "3.11"
- uses: Swatinem/rust-cache@v2
with:
workspaces: python
@@ -196,7 +157,7 @@ jobs:
- name: Set up Python
uses: actions/setup-python@v5
with:
python-version: "3.12"
python-version: "3.11"
- uses: Swatinem/rust-cache@v2
with:
workspaces: python
@@ -207,7 +168,7 @@ jobs:
run: rm -rf target/wheels
pydantic1x:
timeout-minutes: 30
runs-on: "ubuntu-24.04"
runs-on: "ubuntu-22.04"
defaults:
run:
shell: bash
@@ -228,7 +189,6 @@ jobs:
- name: Install lancedb
run: |
pip install "pydantic<2"
pip install pyarrow==16
pip install --extra-index-url https://pypi.fury.io/lancedb/ -e .[tests]
pip install tantivy
- name: Run tests

View File

@@ -22,7 +22,6 @@ env:
# "1" means line tables only, which is useful for panic tracebacks.
RUSTFLAGS: "-C debuginfo=1"
RUST_BACKTRACE: "1"
CARGO_INCREMENTAL: 0
jobs:
lint:
@@ -52,33 +51,6 @@ jobs:
- name: Run clippy
run: cargo clippy --workspace --tests --all-features -- -D warnings
build-no-lock:
runs-on: ubuntu-24.04
timeout-minutes: 30
env:
# Need up-to-date compilers for kernels
CC: clang
CXX: clang++
steps:
- uses: actions/checkout@v4
# Building without a lock file often requires the latest Rust version since downstream
# dependencies may have updated their minimum Rust version.
- uses: actions-rust-lang/setup-rust-toolchain@v1
with:
toolchain: "stable"
# Remove cargo.lock to force a fresh build
- name: Remove Cargo.lock
run: rm -f Cargo.lock
- uses: rui314/setup-mold@v1
- uses: Swatinem/rust-cache@v2
- name: Install dependencies
run: |
sudo apt update
sudo apt install -y protobuf-compiler libssl-dev
- name: Build all
run: |
cargo build --benches --all-features --tests
linux:
timeout-minutes: 30
# To build all features, we need more disk space than is available
@@ -103,11 +75,8 @@ jobs:
workspaces: rust
- name: Install dependencies
run: |
# This shaves 2 minutes off this step in CI. This doesn't seem to be
# necessary in standard runners, but it is in the 4x runners.
sudo rm /var/lib/man-db/auto-update
sudo apt update
sudo apt install -y protobuf-compiler libssl-dev
- uses: rui314/setup-mold@v1
- name: Make Swap
run: |
sudo fallocate -l 16G /swapfile
@@ -118,11 +87,11 @@ jobs:
working-directory: .
run: docker compose up --detach --wait
- name: Build
run: cargo build --all-features --tests --locked --examples
run: cargo build --all-features
- name: Run tests
run: cargo test --all-features --locked
run: cargo test --all-features
- name: Run examples
run: cargo run --example simple --locked
run: cargo run --example simple
macos:
timeout-minutes: 30
@@ -146,78 +115,126 @@ jobs:
workspaces: rust
- name: Install dependencies
run: brew install protobuf
- name: Build
run: cargo build --all-features
- name: Run tests
run: |
# Don't run the s3 integration tests since docker isn't available
# on this image.
ALL_FEATURES=`cargo metadata --format-version=1 --no-deps \
| jq -r '.packages[] | .features | keys | .[]' \
| grep -v s3-test | sort | uniq | paste -s -d "," -`
cargo test --features $ALL_FEATURES --locked
# Run with everything except the integration tests.
run: cargo test --features remote,fp16kernels
windows:
runs-on: windows-2022
strategy:
matrix:
target:
- x86_64-pc-windows-msvc
- aarch64-pc-windows-msvc
defaults:
run:
working-directory: rust/lancedb
steps:
- uses: actions/checkout@v4
- uses: Swatinem/rust-cache@v2
with:
workspaces: rust
- name: Install Protoc v21.12
run: choco install --no-progress protoc
- name: Build
working-directory: C:\
run: |
rustup target add ${{ matrix.target }}
$env:VCPKG_ROOT = $env:VCPKG_INSTALLATION_ROOT
cargo build --features remote --tests --locked --target ${{ matrix.target }}
New-Item -Path 'C:\protoc' -ItemType Directory
Set-Location C:\protoc
Invoke-WebRequest https://github.com/protocolbuffers/protobuf/releases/download/v21.12/protoc-21.12-win64.zip -OutFile C:\protoc\protoc.zip
7z x protoc.zip
Add-Content $env:GITHUB_PATH "C:\protoc\bin"
shell: powershell
- name: Run tests
# Can only run tests when target matches host
if: ${{ matrix.target == 'x86_64-pc-windows-msvc' }}
run: |
$env:VCPKG_ROOT = $env:VCPKG_INSTALLATION_ROOT
cargo test --features remote --locked
cargo build
cargo test
msrv:
# Check the minimum supported Rust version
name: MSRV Check - Rust v${{ matrix.msrv }}
runs-on: ubuntu-24.04
strategy:
matrix:
msrv: ["1.78.0"] # This should match up with rust-version in Cargo.toml
env:
# Need up-to-date compilers for kernels
CC: clang-18
CXX: clang++-18
windows-arm64:
runs-on: windows-4x-arm
steps:
- name: Install Git
run: |
Invoke-WebRequest -Uri "https://github.com/git-for-windows/git/releases/download/v2.44.0.windows.1/Git-2.44.0-64-bit.exe" -OutFile "git-installer.exe"
Start-Process -FilePath "git-installer.exe" -ArgumentList "/VERYSILENT", "/NORESTART" -Wait
shell: powershell
- name: Add Git to PATH
run: |
Add-Content $env:GITHUB_PATH "C:\Program Files\Git\bin"
$env:Path = [System.Environment]::GetEnvironmentVariable("Path","Machine") + ";" + [System.Environment]::GetEnvironmentVariable("Path","User")
shell: powershell
- name: Configure Git symlinks
run: git config --global core.symlinks true
- uses: actions/checkout@v4
- uses: actions/setup-python@v5
with:
submodules: true
- name: Install dependencies
python-version: "3.13"
- name: Install Visual Studio Build Tools
run: |
sudo apt update
sudo apt install -y protobuf-compiler libssl-dev
- name: Install ${{ matrix.msrv }}
uses: dtolnay/rust-toolchain@master
Invoke-WebRequest -Uri "https://aka.ms/vs/17/release/vs_buildtools.exe" -OutFile "vs_buildtools.exe"
Start-Process -FilePath "vs_buildtools.exe" -ArgumentList "--quiet", "--wait", "--norestart", "--nocache", `
"--installPath", "C:\BuildTools", `
"--add", "Microsoft.VisualStudio.Component.VC.Tools.ARM64", `
"--add", "Microsoft.VisualStudio.Component.VC.Tools.x86.x64", `
"--add", "Microsoft.VisualStudio.Component.Windows11SDK.22621", `
"--add", "Microsoft.VisualStudio.Component.VC.ATL", `
"--add", "Microsoft.VisualStudio.Component.VC.ATLMFC", `
"--add", "Microsoft.VisualStudio.Component.VC.Llvm.Clang" -Wait
shell: powershell
- name: Add Visual Studio Build Tools to PATH
run: |
$vsPath = "C:\BuildTools\VC\Tools\MSVC"
$latestVersion = (Get-ChildItem $vsPath | Sort-Object {[version]$_.Name} -Descending)[0].Name
Add-Content $env:GITHUB_PATH "C:\BuildTools\VC\Tools\MSVC\$latestVersion\bin\Hostx64\arm64"
Add-Content $env:GITHUB_PATH "C:\BuildTools\VC\Tools\MSVC\$latestVersion\bin\Hostx64\x64"
Add-Content $env:GITHUB_PATH "C:\Program Files (x86)\Windows Kits\10\bin\10.0.22621.0\arm64"
Add-Content $env:GITHUB_PATH "C:\Program Files (x86)\Windows Kits\10\bin\10.0.22621.0\x64"
Add-Content $env:GITHUB_PATH "C:\BuildTools\VC\Tools\Llvm\x64\bin"
# Add MSVC runtime libraries to LIB
$env:LIB = "C:\BuildTools\VC\Tools\MSVC\$latestVersion\lib\arm64;" +
"C:\Program Files (x86)\Windows Kits\10\Lib\10.0.22621.0\um\arm64;" +
"C:\Program Files (x86)\Windows Kits\10\Lib\10.0.22621.0\ucrt\arm64"
Add-Content $env:GITHUB_ENV "LIB=$env:LIB"
# Add INCLUDE paths
$env:INCLUDE = "C:\BuildTools\VC\Tools\MSVC\$latestVersion\include;" +
"C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\ucrt;" +
"C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\um;" +
"C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\shared"
Add-Content $env:GITHUB_ENV "INCLUDE=$env:INCLUDE"
shell: powershell
- name: Install Rust
run: |
Invoke-WebRequest https://win.rustup.rs/x86_64 -OutFile rustup-init.exe
.\rustup-init.exe -y --default-host aarch64-pc-windows-msvc
shell: powershell
- name: Add Rust to PATH
run: |
Add-Content $env:GITHUB_PATH "$env:USERPROFILE\.cargo\bin"
shell: powershell
- uses: Swatinem/rust-cache@v2
with:
toolchain: ${{ matrix.msrv }}
- name: Downgrade dependencies
# These packages have newer requirements for MSRV
workspaces: rust
- name: Install 7-Zip ARM
run: |
cargo update -p aws-sdk-bedrockruntime --precise 1.64.0
cargo update -p aws-sdk-dynamodb --precise 1.55.0
cargo update -p aws-config --precise 1.5.10
cargo update -p aws-sdk-kms --precise 1.51.0
cargo update -p aws-sdk-s3 --precise 1.65.0
cargo update -p aws-sdk-sso --precise 1.50.0
cargo update -p aws-sdk-ssooidc --precise 1.51.0
cargo update -p aws-sdk-sts --precise 1.51.0
cargo update -p home --precise 0.5.9
- name: cargo +${{ matrix.msrv }} check
run: cargo check --workspace --tests --benches --all-features
New-Item -Path 'C:\7zip' -ItemType Directory
Invoke-WebRequest https://7-zip.org/a/7z2408-arm64.exe -OutFile C:\7zip\7z-installer.exe
Start-Process -FilePath C:\7zip\7z-installer.exe -ArgumentList '/S' -Wait
shell: powershell
- name: Add 7-Zip to PATH
run: Add-Content $env:GITHUB_PATH "C:\Program Files\7-Zip"
shell: powershell
- name: Install Protoc v21.12
working-directory: C:\
run: |
if (Test-Path 'C:\protoc') {
Write-Host "Protoc directory exists, skipping installation"
return
}
New-Item -Path 'C:\protoc' -ItemType Directory
Set-Location C:\protoc
Invoke-WebRequest https://github.com/protocolbuffers/protobuf/releases/download/v21.12/protoc-21.12-win64.zip -OutFile C:\protoc\protoc.zip
& 'C:\Program Files\7-Zip\7z.exe' x protoc.zip
shell: powershell
- name: Add Protoc to PATH
run: Add-Content $env:GITHUB_PATH "C:\protoc\bin"
shell: powershell
- name: Run tests
run: |
$env:VCPKG_ROOT = $env:VCPKG_INSTALLATION_ROOT
cargo build --target aarch64-pc-windows-msvc
cargo test --target aarch64-pc-windows-msvc

View File

@@ -17,12 +17,11 @@ runs:
run: |
python -m pip install --upgrade pip
pip install twine
python3 -m pip install --upgrade pkginfo
- name: Choose repo
shell: bash
id: choose_repo
run: |
if [[ ${{ github.ref }} == *beta* ]]; then
if [ ${{ github.ref }} == "*beta*" ]; then
echo "repo=fury" >> $GITHUB_OUTPUT
else
echo "repo=pypi" >> $GITHUB_OUTPUT
@@ -33,7 +32,7 @@ runs:
FURY_TOKEN: ${{ inputs.fury_token }}
PYPI_TOKEN: ${{ inputs.pypi_token }}
run: |
if [[ ${{ steps.choose_repo.outputs.repo }} == fury ]]; then
if [ ${{ steps.choose_repo.outputs.repo }} == "fury" ]; then
WHEEL=$(ls target/wheels/lancedb-*.whl 2> /dev/null | head -n 1)
echo "Uploading $WHEEL to Fury"
curl -f -F package=@$WHEEL https://$FURY_TOKEN@push.fury.io/lancedb/

3
.gitignore vendored
View File

@@ -9,6 +9,7 @@ venv
.vscode
.zed
rust/target
rust/Cargo.lock
site
@@ -41,3 +42,5 @@ dist
target
**/sccache.log
Cargo.lock

View File

@@ -1,27 +1,21 @@
repos:
- repo: https://github.com/pre-commit/pre-commit-hooks
- repo: https://github.com/pre-commit/pre-commit-hooks
rev: v3.2.0
hooks:
- id: check-yaml
- id: end-of-file-fixer
- id: trailing-whitespace
- repo: https://github.com/astral-sh/ruff-pre-commit
- id: check-yaml
- id: end-of-file-fixer
- id: trailing-whitespace
- repo: https://github.com/astral-sh/ruff-pre-commit
# Ruff version.
rev: v0.9.9
rev: v0.2.2
hooks:
- id: ruff
# - repo: https://github.com/RobertCraigie/pyright-python
# rev: v1.1.395
# hooks:
# - id: pyright
# args: ["--project", "python"]
# additional_dependencies: [pyarrow-stubs]
- repo: local
hooks:
- id: local-biome-check
name: biome check
entry: npx @biomejs/biome@1.8.3 check --config-path nodejs/biome.json nodejs/
language: system
types: [text]
files: "nodejs/.*"
exclude: nodejs/lancedb/native.d.ts|nodejs/dist/.*|nodejs/examples/.*
- id: ruff
- repo: local
hooks:
- id: local-biome-check
name: biome check
entry: npx @biomejs/biome@1.8.3 check --config-path nodejs/biome.json nodejs/
language: system
types: [text]
files: "nodejs/.*"
exclude: nodejs/lancedb/native.d.ts|nodejs/dist/.*|nodejs/examples/.*

View File

@@ -1,78 +0,0 @@
# Contributing to LanceDB
LanceDB is an open-source project and we welcome contributions from the community.
This document outlines the process for contributing to LanceDB.
## Reporting Issues
If you encounter a bug or have a feature request, please open an issue on the
[GitHub issue tracker](https://github.com/lancedb/lancedb).
## Picking an issue
We track issues on the GitHub issue tracker. If you are looking for something to
work on, check the [good first issue](https://github.com/lancedb/lancedb/contribute) label. These issues are typically the best described and have the smallest scope.
If there's an issue you are interested in working on, please leave a comment on the issue. This will help us avoid duplicate work. Additionally, if you have questions about the issue, please ask them in the issue comments. We are happy to provide guidance on how to approach the issue.
## Configuring Git
First, fork the repository on GitHub, then clone your fork:
```bash
git clone https://github.com/<username>/lancedb.git
cd lancedb
```
Then add the main repository as a remote:
```bash
git remote add upstream https://github.com/lancedb/lancedb.git
git fetch upstream
```
## Setting up your development environment
We have development environments for Python, Typescript, and Java. Each environment has its own setup instructions.
* [Python](python/CONTRIBUTING.md)
* [Typescript](nodejs/CONTRIBUTING.md)
<!-- TODO: add Java contributing guide -->
* [Documentation](docs/README.md)
## Best practices for pull requests
For the best chance of having your pull request accepted, please follow these guidelines:
1. Unit test all bug fixes and new features. Your code will not be merged if it
doesn't have tests.
1. If you change the public API, update the documentation in the `docs` directory.
1. Aim to minimize the number of changes in each pull request. Keep to solving
one problem at a time, when possible.
1. Before marking a pull request ready-for-review, do a self review of your code.
Is it clear why you are making the changes? Are the changes easy to understand?
1. Use [conventional commit messages](https://www.conventionalcommits.org/en/) as pull request titles. Examples:
* New feature: `feat: adding foo API`
* Bug fix: `fix: issue with foo API`
* Documentation change: `docs: adding foo API documentation`
1. If your pull request is a work in progress, leave the pull request as a draft.
We will assume the pull request is ready for review when it is opened.
1. When writing tests, test the error cases. Make sure they have understandable
error messages.
## Project structure
The core library is written in Rust. The Python, Typescript, and Java libraries
are wrappers around the Rust library.
* `src/lancedb`: Rust library source code
* `python`: Python package source code
* `nodejs`: Typescript package source code
* `node`: **Deprecated** Typescript package source code
* `java`: Java package source code
* `docs`: Documentation source code
## Release process
For information on the release process, see: [release_process.md](release_process.md)

8603
Cargo.lock generated

File diff suppressed because it is too large Load Diff

View File

@@ -18,58 +18,43 @@ 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 = "1.78.0"
rust-version = "1.80.0" # TODO: lower this once we upgrade Lance again.
[workspace.dependencies]
lance = { "version" = "=0.27.0", "features" = ["dynamodb"], tag = "v0.27.0-beta.2", git="https://github.com/lancedb/lance.git" }
lance-io = { version = "=0.27.0", tag = "v0.27.0-beta.2", git="https://github.com/lancedb/lance.git" }
lance-index = { version = "=0.27.0", tag = "v0.27.0-beta.2", git="https://github.com/lancedb/lance.git" }
lance-linalg = { version = "=0.27.0", tag = "v0.27.0-beta.2", git="https://github.com/lancedb/lance.git" }
lance-table = { version = "=0.27.0", tag = "v0.27.0-beta.2", git="https://github.com/lancedb/lance.git" }
lance-testing = { version = "=0.27.0", tag = "v0.27.0-beta.2", git="https://github.com/lancedb/lance.git" }
lance-datafusion = { version = "=0.27.0", tag = "v0.27.0-beta.2", git="https://github.com/lancedb/lance.git" }
lance-encoding = { version = "=0.27.0", tag = "v0.27.0-beta.2", git="https://github.com/lancedb/lance.git" }
lance = { "version" = "=0.20.0", "features" = [
"dynamodb",
], git = "https://github.com/lancedb/lance.git", tag = "v0.20.0-beta.2" }
lance-index = { version = "=0.20.0", git = "https://github.com/lancedb/lance.git", tag = "v0.20.0-beta.2" }
lance-linalg = { version = "=0.20.0", git = "https://github.com/lancedb/lance.git", tag = "v0.20.0-beta.2" }
lance-table = { version = "=0.20.0", git = "https://github.com/lancedb/lance.git", tag = "v0.20.0-beta.2" }
lance-testing = { version = "=0.20.0", git = "https://github.com/lancedb/lance.git", tag = "v0.20.0-beta.2" }
lance-datafusion = { version = "=0.20.0", git = "https://github.com/lancedb/lance.git", tag = "v0.20.0-beta.2" }
lance-encoding = { version = "=0.20.0", git = "https://github.com/lancedb/lance.git", tag = "v0.20.0-beta.2" }
# Note that this one does not include pyarrow
arrow = { version = "54.1", optional = false }
arrow-array = "54.1"
arrow-data = "54.1"
arrow-ipc = "54.1"
arrow-ord = "54.1"
arrow-schema = "54.1"
arrow-arith = "54.1"
arrow-cast = "54.1"
arrow = { version = "52.2", optional = false }
arrow-array = "52.2"
arrow-data = "52.2"
arrow-ipc = "52.2"
arrow-ord = "52.2"
arrow-schema = "52.2"
arrow-arith = "52.2"
arrow-cast = "52.2"
async-trait = "0"
datafusion = { version = "46.0", default-features = false }
datafusion-catalog = "46.0"
datafusion-common = { version = "46.0", default-features = false }
datafusion-execution = "46.0"
datafusion-expr = "46.0"
datafusion-physical-plan = "46.0"
env_logger = "0.11"
chrono = "0.4.35"
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 = "0.12", features = ["future"] }
object_store = "0.11.0"
moka = { version = "0.11", features = ["future"] }
object_store = "0.10.2"
pin-project = "1.0.7"
snafu = "0.8"
snafu = "0.7.4"
url = "2"
num-traits = "0.2"
rand = "0.8"
regex = "1.10"
lazy_static = "1"
semver = "1.0.25"
# Temporary pins to work around downstream issues
# https://github.com/apache/arrow-rs/commit/2fddf85afcd20110ce783ed5b4cdeb82293da30b
chrono = "=0.4.39"
# https://github.com/RustCrypto/formats/issues/1684
base64ct = "=1.6.0"
# Workaround for: https://github.com/eira-fransham/crunchy/issues/13
crunchy = "=0.2.2"
# Workaround for: https://github.com/Lokathor/bytemuck/issues/306
bytemuck_derive = ">=1.8.1, <1.9.0"

View File

@@ -1,17 +1,9 @@
<a href="https://cloud.lancedb.com" target="_blank">
<img src="https://github.com/user-attachments/assets/92dad0a2-2a37-4ce1-b783-0d1b4f30a00c" alt="LanceDB Cloud Public Beta" width="100%" style="max-width: 100%;">
</a>
<div align="center">
<p align="center">
<picture>
<source media="(prefers-color-scheme: dark)" srcset="https://github.com/user-attachments/assets/ac270358-333e-4bea-a132-acefaa94040e">
<source media="(prefers-color-scheme: light)" srcset="https://github.com/user-attachments/assets/b864d814-0d29-4784-8fd9-807297c758c0">
<img alt="LanceDB Logo" src="https://github.com/user-attachments/assets/b864d814-0d29-4784-8fd9-807297c758c0" width=300>
</picture>
<img width="275" alt="LanceDB Logo" src="https://github.com/lancedb/lancedb/assets/5846846/37d7c7ad-c2fd-4f56-9f16-fffb0d17c73a">
**Search More, Manage Less**
**Developer-friendly, database for multimodal AI**
<a href='https://github.com/lancedb/vectordb-recipes/tree/main' target="_blank"><img alt='LanceDB' src='https://img.shields.io/badge/VectorDB_Recipes-100000?style=for-the-badge&logo=LanceDB&logoColor=white&labelColor=645cfb&color=645cfb'/></a>
<a href='https://lancedb.github.io/lancedb/' target="_blank"><img alt='lancdb' src='https://img.shields.io/badge/DOCS-100000?style=for-the-badge&logo=lancdb&logoColor=white&labelColor=645cfb&color=645cfb'/></a>

View File

@@ -1,9 +1,8 @@
#!/bin/bash
set -e
ARCH=${1:-x86_64}
TARGET_TRIPLE=${2:-x86_64-unknown-linux-gnu}
# We pass down the current user so that when we later mount the local files
# We pass down the current user so that when we later mount the local files
# into the container, the files are accessible by the current user.
pushd ci/manylinux_node
docker build \
@@ -19,4 +18,4 @@ docker run \
-v $(pwd):/io -w /io \
--memory-swap=-1 \
lancedb-node-manylinux \
bash ci/manylinux_node/build_vectordb.sh $ARCH $TARGET_TRIPLE
bash ci/manylinux_node/build_vectordb.sh $ARCH

View File

@@ -0,0 +1,21 @@
#!/bin/bash
set -e
ARCH=${1:-x86_64}
# We pass down the current user so that when we later mount the local files
# into the container, the files are accessible by the current user.
pushd ci/manylinux_node
docker build \
-t lancedb-node-manylinux-$ARCH \
--build-arg="ARCH=$ARCH" \
--build-arg="DOCKER_USER=$(id -u)" \
--progress=plain \
.
popd
# We turn on memory swap to avoid OOM killer
docker run \
-v $(pwd):/io -w /io \
--memory-swap=-1 \
lancedb-node-manylinux-$ARCH \
bash ci/manylinux_node/build_lancedb.sh $ARCH

View File

@@ -0,0 +1,34 @@
# Builds the macOS artifacts (nodejs binaries).
# Usage: ./ci/build_macos_artifacts_nodejs.sh [target]
# Targets supported: x86_64-apple-darwin aarch64-apple-darwin
set -e
prebuild_rust() {
# Building here for the sake of easier debugging.
pushd rust/lancedb
echo "Building rust library for $1"
export RUST_BACKTRACE=1
cargo build --release --target $1
popd
}
build_node_binaries() {
pushd nodejs
echo "Building nodejs library for $1"
export RUST_TARGET=$1
npm run build-release
popd
}
if [ -n "$1" ]; then
targets=$1
else
targets="x86_64-apple-darwin aarch64-apple-darwin"
fi
echo "Building artifacts for targets: $targets"
for target in $targets
do
prebuild_rust $target
build_node_binaries $target
done

View File

@@ -1,5 +1,5 @@
# Many linux dockerfile with Rust, Node, and Lance dependencies installed.
# This container allows building the node modules native libraries in an
# This container allows building the node modules native libraries in an
# environment with a very old glibc, so that we are compatible with a wide
# range of linux distributions.
ARG ARCH=x86_64
@@ -9,6 +9,10 @@ FROM quay.io/pypa/manylinux_2_28_${ARCH}
ARG ARCH=x86_64
ARG DOCKER_USER=default_user
# Install static openssl
COPY install_openssl.sh install_openssl.sh
RUN ./install_openssl.sh ${ARCH} > /dev/null
# Protobuf is also installed as root.
COPY install_protobuf.sh install_protobuf.sh
RUN ./install_protobuf.sh ${ARCH}
@@ -17,7 +21,7 @@ ENV DOCKER_USER=${DOCKER_USER}
# Create a group and user, but only if it doesn't exist
RUN echo ${ARCH} && id -u ${DOCKER_USER} >/dev/null 2>&1 || adduser --user-group --create-home --uid ${DOCKER_USER} build_user
# We switch to the user to install Rust and Node, since those like to be
# We switch to the user to install Rust and Node, since those like to be
# installed at the user level.
USER ${DOCKER_USER}

View File

@@ -0,0 +1,19 @@
#!/bin/bash
# Builds the nodejs module for manylinux. Invoked by ci/build_linux_artifacts_nodejs.sh.
set -e
ARCH=${1:-x86_64}
if [ "$ARCH" = "x86_64" ]; then
export OPENSSL_LIB_DIR=/usr/local/lib64/
else
export OPENSSL_LIB_DIR=/usr/local/lib/
fi
export OPENSSL_STATIC=1
export OPENSSL_INCLUDE_DIR=/usr/local/include/openssl
#Alpine doesn't have .bashrc
FILE=$HOME/.bashrc && test -f $FILE && source $FILE
cd nodejs
npm ci
npm run build-release

View File

@@ -2,7 +2,14 @@
# Builds the node module for manylinux. Invoked by ci/build_linux_artifacts.sh.
set -e
ARCH=${1:-x86_64}
TARGET_TRIPLE=${2:-x86_64-unknown-linux-gnu}
if [ "$ARCH" = "x86_64" ]; then
export OPENSSL_LIB_DIR=/usr/local/lib64/
else
export OPENSSL_LIB_DIR=/usr/local/lib/
fi
export OPENSSL_STATIC=1
export OPENSSL_INCLUDE_DIR=/usr/local/include/openssl
#Alpine doesn't have .bashrc
FILE=$HOME/.bashrc && test -f $FILE && source $FILE
@@ -10,4 +17,4 @@ FILE=$HOME/.bashrc && test -f $FILE && source $FILE
cd node
npm ci
npm run build-release
npm run pack-build -- -t $TARGET_TRIPLE
npm run pack-build

View File

@@ -0,0 +1,26 @@
#!/bin/bash
# Builds openssl from source so we can statically link to it
# this is to avoid the error we get with the system installation:
# /usr/bin/ld: <library>: version node not found for symbol SSLeay@@OPENSSL_1.0.1
# /usr/bin/ld: failed to set dynamic section sizes: Bad value
set -e
git clone -b OpenSSL_1_1_1v \
--single-branch \
https://github.com/openssl/openssl.git
pushd openssl
if [[ $1 == x86_64* ]]; then
ARCH=linux-x86_64
else
# gnu target
ARCH=linux-aarch64
fi
./Configure no-shared $ARCH
make
make install

View File

@@ -1,41 +0,0 @@
import argparse
import toml
def parse_dependencies(pyproject_path, extras=None):
with open(pyproject_path, "r") as file:
pyproject = toml.load(file)
dependencies = pyproject.get("project", {}).get("dependencies", [])
for dependency in dependencies:
print(dependency)
optional_dependencies = pyproject.get("project", {}).get(
"optional-dependencies", {}
)
if extras:
for extra in extras.split(","):
for dep in optional_dependencies.get(extra, []):
print(dep)
def main():
parser = argparse.ArgumentParser(
description="Generate requirements.txt from pyproject.toml"
)
parser.add_argument("path", type=str, help="Path to pyproject.toml")
parser.add_argument(
"--extras",
type=str,
help="Comma-separated list of extras to include",
default="",
)
args = parser.parse_args()
parse_dependencies(args.path, args.extras)
if __name__ == "__main__":
main()

View File

@@ -1,105 +0,0 @@
#!/bin/sh
# https://github.com/mstorsjo/msvc-wine/blob/master/vsdownload.py
# https://github.com/mozilla/gecko-dev/blob/6027d1d91f2d3204a3992633b3ef730ff005fc64/build/vs/vs2022-car.yaml
# function dl() {
# curl -O https://download.visualstudio.microsoft.com/download/pr/$1
# }
# [[.h]]
# "id": "Win11SDK_10.0.26100"
# "version": "10.0.26100.7"
# libucrt.lib
# example: <assert.h>
# dir: ucrt/
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/2ee3a5fc6e9fc832af7295b138e93839/universal%20crt%20headers%20libraries%20and%20sources-x86_en-us.msi
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/b1aa09b90fe314aceb090f6ec7626624/16ab2ea2187acffa6435e334796c8c89.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/400609bb0ff5804e36dbe6dcd42a7f01/6ee7bbee8435130a869cf971694fd9e2.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/2ac327317abb865a0e3f56b2faefa918/78fa3c824c2c48bd4a49ab5969adaaf7.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/f034bc0b2680f67dccd4bfeea3d0f932/7afc7b670accd8e3cc94cfffd516f5cb.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/7ed5e12f9d50f80825a8b27838cf4c7f/96076045170fe5db6d5dcf14b6f6688e.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/764edc185a696bda9e07df8891dddbbb/a1e2a83aa8a71c48c742eeaff6e71928.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/66854bedc6dbd5ccb5dd82c8e2412231/b2f03f34ff83ec013b9e45c7cd8e8a73.cab
# example: <windows.h>
# dir: um/
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/b286efac4d83a54fc49190bddef1edc9/windows%20sdk%20for%20windows%20store%20apps%20headers-x86_en-us.msi
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/e0dc3811d92ab96fcb72bf63d6c08d71/766c0ffd568bbb31bf7fb6793383e24a.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/613503da4b5628768497822826aed39f/8125ee239710f33ea485965f76fae646.cab
# example: <winapifamily.h>
# dir: /shared
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/122979f0348d3a2a36b6aa1a111d5d0c/windows%20sdk%20for%20windows%20store%20apps%20headers%20onecoreuap-x86_en-us.msi
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/766e04beecdfccff39e91dd9eb32834a/e89e3dcbb016928c7e426238337d69eb.cab
# "id": "Microsoft.VisualC.14.16.CRT.Headers"
# "version": "14.16.27045"
# example: <vcruntime.h>
# dir: MSVC/
curl -O https://download.visualstudio.microsoft.com/download/pr/bac0afd7-cc9e-4182-8a83-9898fa20e092/87bbe41e09a2f83711e72696f49681429327eb7a4b90618c35667a6ba2e2880e/Microsoft.VisualC.14.16.CRT.Headers.vsix
# [[.lib]]
# advapi32.lib bcrypt.lib kernel32.lib ntdll.lib user32.lib uuid.lib ws2_32.lib userenv.lib cfgmgr32.lib runtimeobject.lib
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/944c4153b849a1f7d0c0404a4f1c05ea/windows%20sdk%20for%20windows%20store%20apps%20libs-x86_en-us.msi
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/5306aed3e1a38d1e8bef5934edeb2a9b/05047a45609f311645eebcac2739fc4c.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/13c8a73a0f5a6474040b26d016a26fab/13d68b8a7b6678a368e2d13ff4027521.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/149578fb3b621cdb61ee1813b9b3e791/463ad1b0783ebda908fd6c16a4abfe93.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/5c986c4f393c6b09d5aec3b539e9fb4a/5a22e5cde814b041749fb271547f4dd5.cab
# dbghelp.lib fwpuclnt.lib arm64rt.lib
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/7a332420d812f7c1d41da865ae5a7c52/windows%20sdk%20desktop%20libs%20arm64-x86_en-us.msi
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/19de98ed4a79938d0045d19c047936b3/3e2f7be479e3679d700ce0782e4cc318.cab
# libcmt.lib libvcruntime.lib
curl -O https://download.visualstudio.microsoft.com/download/pr/bac0afd7-cc9e-4182-8a83-9898fa20e092/227f40682a88dc5fa0ccb9cadc9ad30af99ad1f1a75db63407587d079f60d035/Microsoft.VisualC.14.16.CRT.ARM64.Desktop.vsix
msiextract universal%20crt%20headers%20libraries%20and%20sources-x86_en-us.msi
msiextract windows%20sdk%20for%20windows%20store%20apps%20headers-x86_en-us.msi
msiextract windows%20sdk%20for%20windows%20store%20apps%20headers%20onecoreuap-x86_en-us.msi
msiextract windows%20sdk%20for%20windows%20store%20apps%20libs-x86_en-us.msi
msiextract windows%20sdk%20desktop%20libs%20arm64-x86_en-us.msi
unzip -o Microsoft.VisualC.14.16.CRT.Headers.vsix
unzip -o Microsoft.VisualC.14.16.CRT.ARM64.Desktop.vsix
mkdir -p /usr/aarch64-pc-windows-msvc/usr/include
mkdir -p /usr/aarch64-pc-windows-msvc/usr/lib
# lowercase folder/file names
echo "$(find . -regex ".*/[^/]*[A-Z][^/]*")" | xargs -I{} sh -c 'mv "$(echo "{}" | sed -E '"'"'s/(.*\/)/\L\1/'"'"')" "$(echo "{}" | tr [A-Z] [a-z])"'
# .h
(cd 'program files/windows kits/10/include/10.0.26100.0' && cp -r ucrt/* um/* shared/* -t /usr/aarch64-pc-windows-msvc/usr/include)
cp -r contents/vc/tools/msvc/14.16.27023/include/* /usr/aarch64-pc-windows-msvc/usr/include
# lowercase #include "" and #include <>
find /usr/aarch64-pc-windows-msvc/usr/include -type f -exec sed -i -E 's/(#include <[^<>]*?[A-Z][^<>]*?>)|(#include "[^"]*?[A-Z][^"]*?")/\L\1\2/' "{}" ';'
# ARM intrinsics
# original dir: MSVC/
# '__n128x4' redefined in arm_neon.h
# "arm64_neon.h" included from intrin.h
(cd /usr/lib/llvm19/lib/clang/19/include && cp arm_neon.h intrin.h -t /usr/aarch64-pc-windows-msvc/usr/include)
# .lib
# _Interlocked intrinsics
# must always link with arm64rt.lib
# reason: https://developercommunity.visualstudio.com/t/libucrtlibstreamobj-error-lnk2001-unresolved-exter/1544787#T-ND1599818
# I don't understand the 'correct' fix for this, arm64rt.lib is supposed to be the workaround
(cd 'program files/windows kits/10/lib/10.0.26100.0/um/arm64' && cp advapi32.lib bcrypt.lib kernel32.lib ntdll.lib user32.lib uuid.lib ws2_32.lib userenv.lib cfgmgr32.lib runtimeobject.lib dbghelp.lib fwpuclnt.lib arm64rt.lib -t /usr/aarch64-pc-windows-msvc/usr/lib)
(cd 'contents/vc/tools/msvc/14.16.27023/lib/arm64' && cp libcmt.lib libvcruntime.lib -t /usr/aarch64-pc-windows-msvc/usr/lib)
cp 'program files/windows kits/10/lib/10.0.26100.0/ucrt/arm64/libucrt.lib' /usr/aarch64-pc-windows-msvc/usr/lib

View File

@@ -1,105 +0,0 @@
#!/bin/sh
# https://github.com/mstorsjo/msvc-wine/blob/master/vsdownload.py
# https://github.com/mozilla/gecko-dev/blob/6027d1d91f2d3204a3992633b3ef730ff005fc64/build/vs/vs2022-car.yaml
# function dl() {
# curl -O https://download.visualstudio.microsoft.com/download/pr/$1
# }
# [[.h]]
# "id": "Win11SDK_10.0.26100"
# "version": "10.0.26100.7"
# libucrt.lib
# example: <assert.h>
# dir: ucrt/
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/2ee3a5fc6e9fc832af7295b138e93839/universal%20crt%20headers%20libraries%20and%20sources-x86_en-us.msi
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/b1aa09b90fe314aceb090f6ec7626624/16ab2ea2187acffa6435e334796c8c89.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/400609bb0ff5804e36dbe6dcd42a7f01/6ee7bbee8435130a869cf971694fd9e2.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/2ac327317abb865a0e3f56b2faefa918/78fa3c824c2c48bd4a49ab5969adaaf7.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/f034bc0b2680f67dccd4bfeea3d0f932/7afc7b670accd8e3cc94cfffd516f5cb.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/7ed5e12f9d50f80825a8b27838cf4c7f/96076045170fe5db6d5dcf14b6f6688e.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/764edc185a696bda9e07df8891dddbbb/a1e2a83aa8a71c48c742eeaff6e71928.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/66854bedc6dbd5ccb5dd82c8e2412231/b2f03f34ff83ec013b9e45c7cd8e8a73.cab
# example: <windows.h>
# dir: um/
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/b286efac4d83a54fc49190bddef1edc9/windows%20sdk%20for%20windows%20store%20apps%20headers-x86_en-us.msi
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/e0dc3811d92ab96fcb72bf63d6c08d71/766c0ffd568bbb31bf7fb6793383e24a.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/613503da4b5628768497822826aed39f/8125ee239710f33ea485965f76fae646.cab
# example: <winapifamily.h>
# dir: /shared
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/122979f0348d3a2a36b6aa1a111d5d0c/windows%20sdk%20for%20windows%20store%20apps%20headers%20onecoreuap-x86_en-us.msi
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/766e04beecdfccff39e91dd9eb32834a/e89e3dcbb016928c7e426238337d69eb.cab
# "id": "Microsoft.VisualC.14.16.CRT.Headers"
# "version": "14.16.27045"
# example: <vcruntime.h>
# dir: MSVC/
curl -O https://download.visualstudio.microsoft.com/download/pr/bac0afd7-cc9e-4182-8a83-9898fa20e092/87bbe41e09a2f83711e72696f49681429327eb7a4b90618c35667a6ba2e2880e/Microsoft.VisualC.14.16.CRT.Headers.vsix
# [[.lib]]
# advapi32.lib bcrypt.lib kernel32.lib ntdll.lib user32.lib uuid.lib ws2_32.lib userenv.lib cfgmgr32.lib
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/944c4153b849a1f7d0c0404a4f1c05ea/windows%20sdk%20for%20windows%20store%20apps%20libs-x86_en-us.msi
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/5306aed3e1a38d1e8bef5934edeb2a9b/05047a45609f311645eebcac2739fc4c.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/13c8a73a0f5a6474040b26d016a26fab/13d68b8a7b6678a368e2d13ff4027521.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/149578fb3b621cdb61ee1813b9b3e791/463ad1b0783ebda908fd6c16a4abfe93.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/5c986c4f393c6b09d5aec3b539e9fb4a/5a22e5cde814b041749fb271547f4dd5.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/bfc3904a0195453419ae4dfea7abd6fb/e10768bb6e9d0ea730280336b697da66.cab
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/637f9f3be880c71f9e3ca07b4d67345c/f9b24c8280986c0683fbceca5326d806.cab
# dbghelp.lib fwpuclnt.lib
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/9f51690d5aa804b1340ce12d1ec80f89/windows%20sdk%20desktop%20libs%20x64-x86_en-us.msi
curl -O https://download.visualstudio.microsoft.com/download/pr/32863b8d-a46d-4231-8e84-0888519d20a9/d3a7df4ca3303a698640a29e558a5e5b/58314d0646d7e1a25e97c902166c3155.cab
# libcmt.lib libvcruntime.lib
curl -O https://download.visualstudio.microsoft.com/download/pr/bac0afd7-cc9e-4182-8a83-9898fa20e092/8728f21ae09940f1f4b4ee47b4a596be2509e2a47d2f0c83bbec0ea37d69644b/Microsoft.VisualC.14.16.CRT.x64.Desktop.vsix
msiextract universal%20crt%20headers%20libraries%20and%20sources-x86_en-us.msi
msiextract windows%20sdk%20for%20windows%20store%20apps%20headers-x86_en-us.msi
msiextract windows%20sdk%20for%20windows%20store%20apps%20headers%20onecoreuap-x86_en-us.msi
msiextract windows%20sdk%20for%20windows%20store%20apps%20libs-x86_en-us.msi
msiextract windows%20sdk%20desktop%20libs%20x64-x86_en-us.msi
unzip -o Microsoft.VisualC.14.16.CRT.Headers.vsix
unzip -o Microsoft.VisualC.14.16.CRT.x64.Desktop.vsix
mkdir -p /usr/x86_64-pc-windows-msvc/usr/include
mkdir -p /usr/x86_64-pc-windows-msvc/usr/lib
# lowercase folder/file names
echo "$(find . -regex ".*/[^/]*[A-Z][^/]*")" | xargs -I{} sh -c 'mv "$(echo "{}" | sed -E '"'"'s/(.*\/)/\L\1/'"'"')" "$(echo "{}" | tr [A-Z] [a-z])"'
# .h
(cd 'program files/windows kits/10/include/10.0.26100.0' && cp -r ucrt/* um/* shared/* -t /usr/x86_64-pc-windows-msvc/usr/include)
cp -r contents/vc/tools/msvc/14.16.27023/include/* /usr/x86_64-pc-windows-msvc/usr/include
# lowercase #include "" and #include <>
find /usr/x86_64-pc-windows-msvc/usr/include -type f -exec sed -i -E 's/(#include <[^<>]*?[A-Z][^<>]*?>)|(#include "[^"]*?[A-Z][^"]*?")/\L\1\2/' "{}" ';'
# x86 intrinsics
# original dir: MSVC/
# '_mm_movemask_epi8' defined in emmintrin.h
# '__v4sf' defined in xmmintrin.h
# '__v2si' defined in mmintrin.h
# '__m128d' redefined in immintrin.h
# '__m128i' redefined in intrin.h
# '_mm_comlt_epu8' defined in ammintrin.h
(cd /usr/lib/llvm19/lib/clang/19/include && cp emmintrin.h xmmintrin.h mmintrin.h immintrin.h intrin.h ammintrin.h -t /usr/x86_64-pc-windows-msvc/usr/include)
# .lib
(cd 'program files/windows kits/10/lib/10.0.26100.0/um/x64' && cp advapi32.lib bcrypt.lib kernel32.lib ntdll.lib user32.lib uuid.lib ws2_32.lib userenv.lib cfgmgr32.lib dbghelp.lib fwpuclnt.lib -t /usr/x86_64-pc-windows-msvc/usr/lib)
(cd 'contents/vc/tools/msvc/14.16.27023/lib/x64' && cp libcmt.lib libvcruntime.lib -t /usr/x86_64-pc-windows-msvc/usr/lib)
cp 'program files/windows kits/10/lib/10.0.26100.0/ucrt/x64/libucrt.lib' /usr/x86_64-pc-windows-msvc/usr/lib

View File

@@ -1,34 +0,0 @@
import tomllib
found_preview_lance = False
with open("Cargo.toml", "rb") as f:
cargo_data = tomllib.load(f)
for name, dep in cargo_data["workspace"]["dependencies"].items():
if name == "lance" or name.startswith("lance-"):
if isinstance(dep, str):
version = dep
elif isinstance(dep, dict):
# Version doesn't have the beta tag in it, so we instead look
# at the git tag.
version = dep.get('tag', dep.get('version'))
else:
raise ValueError("Unexpected type for dependency: " + str(dep))
if "beta" in version:
found_preview_lance = True
print(f"Dependency '{name}' is a preview version: {version}")
with open("python/pyproject.toml", "rb") as f:
py_proj_data = tomllib.load(f)
for dep in py_proj_data["project"]["dependencies"]:
if dep.startswith("pylance"):
if "b" in dep:
found_preview_lance = True
print(f"Dependency '{dep}' is a preview version")
break # Only one pylance dependency
if found_preview_lance:
raise ValueError("Found preview version of Lance in dependencies")

View File

@@ -2,88 +2,43 @@
LanceDB docs are deployed to https://lancedb.github.io/lancedb/.
Docs is built and deployed automatically by [Github Actions](../.github/workflows/docs.yml)
Docs is built and deployed automatically by [Github Actions](.github/workflows/docs.yml)
whenever a commit is pushed to the `main` branch. So it is possible for the docs to show
unreleased features.
## Building the docs
### Setup
1. Install LanceDB Python. See setup in [Python contributing guide](../python/CONTRIBUTING.md).
Run `make develop` to install the Python package.
2. Install documentation dependencies. From LanceDB repo root: `pip install -r docs/requirements.txt`
1. Install LanceDB. From LanceDB repo root: `pip install -e python`
2. Install dependencies. From LanceDB repo root: `pip install -r docs/requirements.txt`
3. Make sure you have node and npm setup
4. Make sure protobuf and libssl are installed
### Preview the docs
### Building node module and create markdown files
```shell
See [Javascript docs README](./src/javascript/README.md)
### Build docs
From LanceDB repo root:
Run: `PYTHONPATH=. mkdocs build -f docs/mkdocs.yml`
If successful, you should see a `docs/site` directory that you can verify locally.
### Run local server
You can run a local server to test the docs prior to deployment by navigating to the `docs` directory and running the following command:
```bash
cd docs
mkdocs serve
```
If you want to just generate the HTML files:
### Run doctest for typescript example
```shell
PYTHONPATH=. mkdocs build -f docs/mkdocs.yml
```
If successful, you should see a `docs/site` directory that you can verify locally.
## Adding examples
To make sure examples are correct, we put examples in test files so they can be
run as part of our test suites.
You can see the tests are at:
* Python: `python/python/tests/docs`
* Typescript: `nodejs/examples/`
### Checking python examples
```shell
cd python
pytest -vv python/tests/docs
```
### Checking typescript examples
The `@lancedb/lancedb` package must be built before running the tests:
```shell
pushd nodejs
npm ci
```bash
cd lancedb/docs
npm i
npm run build
popd
```
Then you can run the examples by going to the `nodejs/examples` directory and
running the tests like a normal npm package:
```shell
pushd nodejs/examples
npm ci
npm test
popd
```
## API documentation
### Python
The Python API documentation is organized based on the file `docs/src/python/python.md`.
We manually add entries there so we can control the organization of the reference page.
**However, this means any new types must be manually added to the file.** No additional
steps are needed to generate the API documentation.
### Typescript
The typescript API documentation is generated from the typescript source code using [typedoc](https://typedoc.org/).
When new APIs are added, you must manually re-run the typedoc command to update the API documentation.
The new files should be checked into the repository.
```shell
pushd nodejs
npm run docs
popd
npm run all
```

View File

@@ -4,9 +4,6 @@ repo_url: https://github.com/lancedb/lancedb
edit_uri: https://github.com/lancedb/lancedb/tree/main/docs/src
repo_name: lancedb/lancedb
docs_dir: src
watch:
- src
- ../python/python
theme:
name: "material"
@@ -58,15 +55,10 @@ plugins:
show_signature_annotations: true
show_root_heading: true
members_order: source
docstring_section_style: list
signature_crossrefs: true
separate_signature: true
import:
# for cross references
- https://arrow.apache.org/docs/objects.inv
- https://pandas.pydata.org/docs/objects.inv
- https://lancedb.github.io/lance/objects.inv
- https://docs.pydantic.dev/latest/objects.inv
- mkdocs-jupyter
- render_swagger:
allow_arbitrary_locations: true
@@ -105,13 +97,12 @@ markdown_extensions:
nav:
- Home:
- LanceDB: index.md
- 👉 Quickstart: quickstart.md
- 🏃🏼‍♂️ Basic Usage: basic.md
- 🏃🏼‍♂️ Quick start: basic.md
- 📚 Concepts:
- Vector search: concepts/vector_search.md
- Indexing:
- IVFPQ: concepts/index_ivfpq.md
- HNSW: concepts/index_hnsw.md
- IVFPQ: concepts/index_ivfpq.md
- HNSW: concepts/index_hnsw.md
- Storage: concepts/storage.md
- Data management: concepts/data_management.md
- 🔨 Guides:
@@ -125,9 +116,6 @@ nav:
- Overview: hybrid_search/hybrid_search.md
- Comparing Rerankers: hybrid_search/eval.md
- Airbnb financial data example: notebooks/hybrid_search.ipynb
- Late interaction with MultiVector search:
- Overview: guides/multi-vector.md
- Example: notebooks/Multivector_on_LanceDB.ipynb
- RAG:
- Vanilla RAG: rag/vanilla_rag.md
- Multi-head RAG: rag/multi_head_rag.md
@@ -138,8 +126,8 @@ nav:
- 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
- HyDE: rag/advanced_techniques/hyde.md
- FLARE: rag/advanced_techniques/flare.md
- Reranking:
- Quickstart: reranking/index.md
- Cohere Reranker: reranking/cohere.md
@@ -154,9 +142,7 @@ nav:
- Building Custom Rerankers: reranking/custom_reranker.md
- Example: notebooks/lancedb_reranking.ipynb
- Filtering: sql.md
- Versioning & Reproducibility:
- sync API: notebooks/reproducibility.ipynb
- async API: notebooks/reproducibility_async.ipynb
- Versioning & Reproducibility: notebooks/reproducibility.ipynb
- Configuring Storage: guides/storage.md
- Migration Guide: migration.md
- Tuning retrieval performance:
@@ -186,7 +172,6 @@ nav:
- Imagebind embeddings: embeddings/available_embedding_models/multimodal_embedding_functions/imagebind_embedding.md
- Jina Embeddings: embeddings/available_embedding_models/multimodal_embedding_functions/jina_multimodal_embedding.md
- User-defined embedding functions: embeddings/custom_embedding_function.md
- Variables and secrets: embeddings/variables_and_secrets.md
- "Example: Multi-lingual semantic search": notebooks/multi_lingual_example.ipynb
- "Example: MultiModal CLIP Embeddings": notebooks/DisappearingEmbeddingFunction.ipynb
- 🔌 Integrations:
@@ -237,15 +222,19 @@ nav:
- 👾 JavaScript (vectordb): javascript/modules.md
- 👾 JavaScript (lancedb): js/globals.md
- 🦀 Rust: https://docs.rs/lancedb/latest/lancedb/
- ☁️ LanceDB Cloud:
- Overview: cloud/index.md
- API reference:
- 🐍 Python: python/saas-python.md
- 👾 JavaScript: javascript/modules.md
- REST API: cloud/rest.md
- Getting Started:
- Quickstart: quickstart.md
- Basic Usage: basic.md
- Quick start: basic.md
- Concepts:
- Vector search: concepts/vector_search.md
- Indexing:
- IVFPQ: concepts/index_ivfpq.md
- HNSW: concepts/index_hnsw.md
- IVFPQ: concepts/index_ivfpq.md
- HNSW: concepts/index_hnsw.md
- Storage: concepts/storage.md
- Data management: concepts/data_management.md
- Guides:
@@ -259,9 +248,6 @@ nav:
- Overview: hybrid_search/hybrid_search.md
- Comparing Rerankers: hybrid_search/eval.md
- Airbnb financial data example: notebooks/hybrid_search.ipynb
- Late interaction with MultiVector search:
- Overview: guides/multi-vector.md
- Document search Example: notebooks/Multivector_on_LanceDB.ipynb
- RAG:
- Vanilla RAG: rag/vanilla_rag.md
- Multi-head RAG: rag/multi_head_rag.md
@@ -272,8 +258,8 @@ nav:
- 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
- HyDE: rag/advanced_techniques/hyde.md
- FLARE: rag/advanced_techniques/flare.md
- Reranking:
- Quickstart: reranking/index.md
- Cohere Reranker: reranking/cohere.md
@@ -287,9 +273,7 @@ nav:
- Building Custom Rerankers: reranking/custom_reranker.md
- Example: notebooks/lancedb_reranking.ipynb
- Filtering: sql.md
- Versioning & Reproducibility:
- sync API: notebooks/reproducibility.ipynb
- async API: notebooks/reproducibility_async.ipynb
- Versioning & Reproducibility: notebooks/reproducibility.ipynb
- Configuring Storage: guides/storage.md
- Migration Guide: migration.md
- Tuning retrieval performance:
@@ -318,7 +302,6 @@ nav:
- Imagebind embeddings: embeddings/available_embedding_models/multimodal_embedding_functions/imagebind_embedding.md
- Jina Embeddings: embeddings/available_embedding_models/multimodal_embedding_functions/jina_multimodal_embedding.md
- User-defined embedding functions: embeddings/custom_embedding_function.md
- Variables and secrets: embeddings/variables_and_secrets.md
- "Example: Multi-lingual semantic search": notebooks/multi_lingual_example.ipynb
- "Example: MultiModal CLIP Embeddings": notebooks/DisappearingEmbeddingFunction.ipynb
- Integrations:
@@ -357,14 +340,20 @@ nav:
- 🦀 Rust:
- Overview: examples/examples_rust.md
- Studies:
- studies/overview.md
- ↗Improve retrievers with hybrid search and reranking: https://blog.lancedb.com/hybrid-search-and-reranking-report/
- studies/overview.md
- ↗Improve retrievers with hybrid search and reranking: https://blog.lancedb.com/hybrid-search-and-reranking-report/
- API reference:
- Overview: api_reference.md
- Python: python/python.md
- Javascript (vectordb): javascript/modules.md
- Javascript (lancedb): js/globals.md
- Rust: https://docs.rs/lancedb/latest/lancedb/index.html
- LanceDB Cloud:
- Overview: cloud/index.md
- API reference:
- 🐍 Python: python/saas-python.md
- 👾 JavaScript: javascript/modules.md
- REST API: cloud/rest.md
extra_css:
- styles/global.css
@@ -372,7 +361,6 @@ extra_css:
extra_javascript:
- "extra_js/init_ask_ai_widget.js"
- "extra_js/reo.js"
extra:
analytics:

View File

@@ -38,13 +38,6 @@ components:
required: true
schema:
type: string
index_name:
name: index_name
in: path
description: name of the index
required: true
schema:
type: string
responses:
invalid_request:
description: Invalid request
@@ -171,7 +164,7 @@ paths:
distance_type:
type: string
description: |
The distance metric to use for search. l2, Cosine, Dot and Hamming are supported. Default is l2.
The distance metric to use for search. L2, Cosine, Dot and Hamming are supported. Default is L2.
bypass_vector_index:
type: boolean
description: |
@@ -450,7 +443,7 @@ paths:
type: string
nullable: false
description: |
The metric type to use for the index. l2, Cosine, Dot are supported.
The metric type to use for the index. L2, Cosine, Dot are supported.
index_type:
type: string
responses:
@@ -492,22 +485,3 @@ paths:
$ref: "#/components/responses/unauthorized"
"404":
$ref: "#/components/responses/not_found"
/v1/table/{name}/index/{index_name}/drop/:
post:
description: Drop an index from the table
tags:
- Tables
summary: Drop an index from the table
operationId: dropIndex
parameters:
- $ref: "#/components/parameters/table_name"
- $ref: "#/components/parameters/index_name"
responses:
"200":
description: Index successfully dropped
"400":
$ref: "#/components/responses/invalid_request"
"401":
$ref: "#/components/responses/unauthorized"
"404":
$ref: "#/components/responses/not_found"

View File

@@ -18,24 +18,25 @@ See the [indexing](concepts/index_ivfpq.md) concepts guide for more information
Lance supports `IVF_PQ` index type by default.
=== "Python"
=== "Sync API"
Creating indexes is done via the [create_index](https://lancedb.github.io/lancedb/python/#lancedb.table.LanceTable.create_index) method.
Creating indexes is done via the [create_index](https://lancedb.github.io/lancedb/python/#lancedb.table.LanceTable.create_index) method.
```python
--8<-- "python/python/tests/docs/test_guide_index.py:import-lancedb"
--8<-- "python/python/tests/docs/test_guide_index.py:import-numpy"
--8<-- "python/python/tests/docs/test_guide_index.py:create_ann_index"
```
=== "Async API"
Creating indexes is done via the [create_index](https://lancedb.github.io/lancedb/python/#lancedb.table.LanceTable.create_index) method.
```python
import lancedb
import numpy as np
uri = "data/sample-lancedb"
db = lancedb.connect(uri)
```python
--8<-- "python/python/tests/docs/test_guide_index.py:import-lancedb"
--8<-- "python/python/tests/docs/test_guide_index.py:import-numpy"
--8<-- "python/python/tests/docs/test_guide_index.py:import-lancedb-ivfpq"
--8<-- "python/python/tests/docs/test_guide_index.py:create_ann_index_async"
```
# Create 10,000 sample vectors
data = [{"vector": row, "item": f"item {i}"}
for i, row in enumerate(np.random.random((10_000, 1536)).astype('float32'))]
# Add the vectors to a table
tbl = db.create_table("my_vectors", data=data)
# Create and train the index - you need to have enough data in the table for an effective training step
tbl.create_index(num_partitions=256, num_sub_vectors=96)
```
=== "TypeScript"
@@ -69,7 +70,7 @@ Lance supports `IVF_PQ` index type by default.
The following IVF_PQ paramters can be specified:
- **distance_type**: The distance metric to use. By default it uses euclidean distance "`l2`".
- **distance_type**: The distance metric to use. By default it uses euclidean distance "`L2`".
We also support "cosine" and "dot" distance as well.
- **num_partitions**: The number of partitions in the index. The default is the square root
of the number of rows.
@@ -82,7 +83,6 @@ The following IVF_PQ paramters can be specified:
- **num_sub_vectors**: The number of sub-vectors (M) that will be created during Product Quantization (PQ).
For D dimensional vector, it will be divided into `M` subvectors with dimension `D/M`, each of which is replaced by
a single PQ code. The default is the dimension of the vector divided by 16.
- **num_bits**: The number of bits used to encode each sub-vector. Only 4 and 8 are supported. The higher the number of bits, the higher the accuracy of the index, also the slower search. The default is 8.
!!! note
@@ -126,9 +126,7 @@ You can specify the GPU device to train IVF partitions via
accelerator="mps"
)
```
!!! note
GPU based indexing is not yet supported with our asynchronous client.
Troubleshooting:
If you see `AssertionError: Torch not compiled with CUDA enabled`, you need to [install
@@ -144,25 +142,23 @@ There are a couple of parameters that can be used to fine-tune the search:
- **nprobes** (default: 20): The number of probes used. A higher number makes search more accurate but also slower.<br/>
Most of the time, setting nprobes to cover 5-15% of the dataset should achieve high recall with low latency.<br/>
- _For example_, For a dataset of 1 million vectors divided into 256 partitions, `nprobes` should be set to ~20-40. This value can be adjusted to achieve the optimal balance between search latency and search quality. <br/>
- **refine_factor** (default: None): Refine the results by reading extra elements and re-ranking them in memory.<br/>
A higher number makes search more accurate but also slower. If you find the recall is less than ideal, try refine_factor=10 to start.<br/>
- _For example_, For a dataset of 1 million vectors divided into 256 partitions, setting the `refine_factor` to 200 will initially retrieve the top 4,000 candidates (top k * refine_factor) from all searched partitions. These candidates are then reranked to determine the final top 20 results.<br/>
!!! note
!!! note
Both `nprobes` and `refine_factor` are only applicable if an ANN index is present. If specified on a table without an ANN index, those parameters are ignored.
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_index.py:vector_search"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_index.py:vector_search_async"
```
```python
tbl.search(np.random.random((1536))) \
.limit(2) \
.nprobes(20) \
.refine_factor(10) \
.to_pandas()
```
```text
vector item _distance
@@ -199,16 +195,10 @@ The search will return the data requested in addition to the distance of each it
You can further filter the elements returned by a search using a where clause.
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_index.py:vector_search_with_filter"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_index.py:vector_search_async_with_filter"
```
```python
tbl.search(np.random.random((1536))).where("item != 'item 1141'").to_pandas()
```
=== "TypeScript"
@@ -230,16 +220,10 @@ You can select the columns returned by the query using a select clause.
=== "Python"
=== "Sync API"
```python
tbl.search(np.random.random((1536))).select(["vector"]).to_pandas()
```
```python
--8<-- "python/python/tests/docs/test_guide_index.py:vector_search_with_select"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_index.py:vector_search_async_with_select"
```
```text
vector _distance
@@ -304,4 +288,4 @@ less space distortion, and thus yields better accuracy. However, a higher `num_s
`m` determines the number of connections a new node establishes with its closest neighbors upon entering the graph. Typically, `m` falls within the range of 5 to 48. Lower `m` values are suitable for low-dimensional data or scenarios where recall is less critical. Conversely, higher `m` values are beneficial for high-dimensional data or when high recall is required. In essence, a larger `m` results in a denser graph with increased connectivity, but at the expense of higher memory consumption.
`ef_construction` balances build speed and accuracy. Higher values increase accuracy but slow down the build process. A typical range is 150 to 300. For good search results, a minimum value of 100 is recommended. In most cases, setting this value above 500 offers no additional benefit. Ensure that `ef_construction` is always set to a value equal to or greater than `ef` in the search phase
`ef_construction` balances build speed and accuracy. Higher values increase accuracy but slow down the build process. A typical range is 150 to 300. For good search results, a minimum value of 100 is recommended. In most cases, setting this value above 500 offers no additional benefit. Ensure that `ef_construction` is always set to a value equal to or greater than `ef` in the search phase

View File

@@ -3,7 +3,6 @@ import * as vectordb from "vectordb";
// --8<-- [end:import]
(async () => {
console.log("ann_indexes.ts: start");
// --8<-- [start:ingest]
const db = await vectordb.connect("data/sample-lancedb");
@@ -50,5 +49,5 @@ import * as vectordb from "vectordb";
.execute();
// --8<-- [end:search3]
console.log("ann_indexes.ts: done");
console.log("Ann indexes: done");
})();

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Before

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View File

@@ -1,4 +1,4 @@
# Basic Usage
# Quick start
!!! info "LanceDB can be run in a number of ways:"
@@ -133,22 +133,21 @@ recommend switching to stable releases.
## Connect to a database
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_basic.py:imports"
```python
--8<-- "python/python/tests/docs/test_basic.py:imports"
--8<-- "python/python/tests/docs/test_basic.py:connect"
--8<-- "python/python/tests/docs/test_basic.py:set_uri"
--8<-- "python/python/tests/docs/test_basic.py:connect"
```
=== "Async API"
--8<-- "python/python/tests/docs/test_basic.py:connect_async"
```
```python
--8<-- "python/python/tests/docs/test_basic.py:imports"
!!! note "Asynchronous Python API"
--8<-- "python/python/tests/docs/test_basic.py:set_uri"
--8<-- "python/python/tests/docs/test_basic.py:connect_async"
```
The asynchronous Python API is new and has some slight differences compared
to the synchronous API. Feel free to start using the asynchronous version.
Once all features have migrated we will start to move the synchronous API to
use the same syntax as the asynchronous API. To help with this migration we
have created a [migration guide](migration.md) detailing the differences.
=== "Typescript[^1]"
@@ -192,33 +191,21 @@ table.
=== "Python"
```python
--8<-- "python/python/tests/docs/test_basic.py:create_table"
--8<-- "python/python/tests/docs/test_basic.py:create_table_async"
```
If the table already exists, LanceDB will raise an error by default.
If you want to overwrite the table, you can pass in `mode="overwrite"`
to the `create_table` method.
=== "Sync API"
You can also pass in a pandas DataFrame directly:
```python
--8<-- "python/python/tests/docs/test_basic.py:create_table"
```
You can also pass in a pandas DataFrame directly:
```python
--8<-- "python/python/tests/docs/test_basic.py:create_table_pandas"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_basic.py:create_table_async"
```
You can also pass in a pandas DataFrame directly:
```python
--8<-- "python/python/tests/docs/test_basic.py:create_table_async_pandas"
```
```python
--8<-- "python/python/tests/docs/test_basic.py:create_table_pandas"
--8<-- "python/python/tests/docs/test_basic.py:create_table_async_pandas"
```
=== "Typescript[^1]"
@@ -268,16 +255,10 @@ similar to a `CREATE TABLE` statement in SQL.
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_basic.py:create_empty_table"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_basic.py:create_empty_table_async"
```
```python
--8<-- "python/python/tests/docs/test_basic.py:create_empty_table"
--8<-- "python/python/tests/docs/test_basic.py:create_empty_table_async"
```
!!! note "You can define schema in Pydantic"
LanceDB comes with Pydantic support, which allows you to define the schema of your data using Pydantic models. This makes it easy to work with LanceDB tables and data. Learn more about all supported types in [tables guide](./guides/tables.md).
@@ -308,16 +289,10 @@ Once created, you can open a table as follows:
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_basic.py:open_table"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_basic.py:open_table_async"
```
```python
--8<-- "python/python/tests/docs/test_basic.py:open_table"
--8<-- "python/python/tests/docs/test_basic.py:open_table_async"
```
=== "Typescript[^1]"
=== "@lancedb/lancedb"
@@ -343,16 +318,10 @@ If you forget the name of your table, you can always get a listing of all table
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_basic.py:table_names"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_basic.py:table_names_async"
```
```python
--8<-- "python/python/tests/docs/test_basic.py:table_names"
--8<-- "python/python/tests/docs/test_basic.py:table_names_async"
```
=== "Typescript[^1]"
=== "@lancedb/lancedb"
@@ -379,16 +348,10 @@ After a table has been created, you can always add more data to it as follows:
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_basic.py:add_data"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_basic.py:add_data_async"
```
```python
--8<-- "python/python/tests/docs/test_basic.py:add_data"
--8<-- "python/python/tests/docs/test_basic.py:add_data_async"
```
=== "Typescript[^1]"
=== "@lancedb/lancedb"
@@ -415,16 +378,10 @@ Once you've embedded the query, you can find its nearest neighbors as follows:
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_basic.py:vector_search"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_basic.py:vector_search_async"
```
```python
--8<-- "python/python/tests/docs/test_basic.py:vector_search"
--8<-- "python/python/tests/docs/test_basic.py:vector_search_async"
```
This returns a pandas DataFrame with the results.
@@ -463,16 +420,10 @@ LanceDB allows you to create an ANN index on a table as follows:
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_basic.py:create_index"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_basic.py:create_index_async"
```
```py
--8<-- "python/python/tests/docs/test_basic.py:create_index"
--8<-- "python/python/tests/docs/test_basic.py:create_index_async"
```
=== "Typescript[^1]"
=== "@lancedb/lancedb"
@@ -508,16 +459,10 @@ This can delete any number of rows that match the filter.
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_basic.py:delete_rows"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_basic.py:delete_rows_async"
```
```python
--8<-- "python/python/tests/docs/test_basic.py:delete_rows"
--8<-- "python/python/tests/docs/test_basic.py:delete_rows_async"
```
=== "Typescript[^1]"
@@ -546,10 +491,7 @@ simple or complex as needed. To see what expressions are supported, see the
=== "Python"
=== "Sync API"
Read more: [lancedb.table.Table.delete][]
=== "Async API"
Read more: [lancedb.table.AsyncTable.delete][]
Read more: [lancedb.table.Table.delete][]
=== "Typescript[^1]"
@@ -571,16 +513,10 @@ Use the `drop_table()` method on the database to remove a table.
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_basic.py:drop_table"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_basic.py:drop_table_async"
```
```python
--8<-- "python/python/tests/docs/test_basic.py:drop_table"
--8<-- "python/python/tests/docs/test_basic.py:drop_table_async"
```
This permanently removes the table and is not recoverable, unlike deleting rows.
By default, if the table does not exist an exception is raised. To suppress this,
@@ -615,17 +551,10 @@ You can use the embedding API when working with embedding models. It automatical
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_embeddings_optional.py:imports"
--8<-- "python/python/tests/docs/test_embeddings_optional.py:openai_embeddings"
```
=== "Async API"
Coming soon to the async API.
https://github.com/lancedb/lancedb/issues/1938
```python
--8<-- "python/python/tests/docs/test_embeddings_optional.py:imports"
--8<-- "python/python/tests/docs/test_embeddings_optional.py:openai_embeddings"
```
=== "Typescript[^1]"

View File

@@ -107,6 +107,7 @@ const example = async () => {
// --8<-- [start:search]
const query = await tbl.search([100, 100]).limit(2).execute();
// --8<-- [end:search]
console.log(query);
// --8<-- [start:delete]
await tbl.delete('item = "fizz"');
@@ -118,9 +119,8 @@ const example = async () => {
};
async function main() {
console.log("basic_legacy.ts: start");
await example();
console.log("basic_legacy.ts: done");
console.log("Basic example: done");
}
main();

View File

@@ -1,34 +0,0 @@
This section provides answers to the most common questions asked about LanceDB Cloud. By following these guidelines, you can ensure a smooth, performant experience with LanceDB Cloud.
### Should I reuse the database connection?
Yes! It is recommended to establish a single database connection and maintain it throughout your interaction with the tables within.
LanceDB uses HTTP connections to communicate with the servers. By re-using the Connection object, you avoid the overhead of repeatedly establishing HTTP connections, significantly improving efficiency.
### Should I re-use the `Table` object?
`table = db.open_table()` should be called once and used for all subsequent table operations. If there are changes to the opened table, `table` always reflect the **latest version** of the data.
### What should I do if I need to search for rows by `id`?
LanceDB Cloud currently does not support an ID or primary key column. You are recommended to add a
user-defined ID column. To significantly improve the query performance with SQL causes, a scalar BITMAP/BTREE index should be created on this column.
### What are the vector indexing types supported by LanceDB Cloud?
We support `IVF_PQ` and `IVF_HNSW_SQ` as the `index_type` which is passed to `create_index`. LanceDB Cloud tunes the indexing parameters automatically to achieve the best tradeoff between query latency and query quality.
### When I add new rows to a table, do I need to manually update the index?
No! LanceDB Cloud triggers an asynchronous background job to index the new vectors.
Even though indexing is asynchronous, your vectors will still be immediately searchable. LanceDB uses brute-force search to search over unindexed rows. This makes you new data is immediately available, but does increase latency temporarily. To disable the brute-force part of search, set the `fast_search` flag in your query to `true`.
### Do I need to reindex the whole dataset if only a small portion of the data is deleted or updated?
No! Similar to adding data to the table, LanceDB Cloud triggers an asynchronous background job to update the existing indices. Therefore, no action is needed from users and there is absolutely no
downtime expected.
### How do I know whether an index has been created?
While index creation in LanceDB Cloud is generally fast, querying immediately after a `create_index` call may result in errors. It's recommended to use `list_indices` to verify index creation before querying.
### Why is my query latency higher than expected?
Multiple factors can impact query latency. To reduce query latency, consider the following:
- Send pre-warm queries: send a few queries to warm up the cache before an actual user query.
- Check network latency: LanceDB Cloud is hosted in AWS `us-east-1` region. It is recommended to run queries from an EC2 instance that is in the same region.
- Create scalar indices: If you are filtering on metadata, it is recommended to create scalar indices on those columns. This will speedup searches with metadata filtering. See [here](../guides/scalar_index.md) for more details on creating a scalar index.

View File

@@ -2,7 +2,7 @@
LanceDB Cloud is a SaaS (software-as-a-service) solution that runs serverless in the cloud, clearly separating storage from compute. It's designed to be highly scalable without breaking the bank. LanceDB Cloud is currently in private beta with general availability coming soon, but you can apply for early access with the private beta release by signing up below.
[Try out LanceDB Cloud (Public Beta)](https://cloud.lancedb.com){ .md-button .md-button--primary }
[Try out LanceDB Cloud](https://noteforms.com/forms/lancedb-mailing-list-cloud-kty1o5?notionforms=1&utm_source=notionforms){ .md-button .md-button--primary }
## Architecture

View File

@@ -7,7 +7,7 @@ Approximate Nearest Neighbor (ANN) search is a method for finding data points ne
There are three main types of ANN search algorithms:
* **Tree-based search algorithms**: Use a tree structure to organize and store data points.
* **Hash-based search algorithms**: Use a specialized geometric hash table to store and manage data points. These algorithms typically focus on theoretical guarantees, and don't usually perform as well as the other approaches in practice.
* * **Hash-based search algorithms**: Use a specialized geometric hash table to store and manage data points. These algorithms typically focus on theoretical guarantees, and don't usually perform as well as the other approaches in practice.
* **Graph-based search algorithms**: Use a graph structure to store data points, which can be a bit complex.
HNSW is a graph-based algorithm. All graph-based search algorithms rely on the idea of a k-nearest neighbor (or k-approximate nearest neighbor) graph, which we outline below.
@@ -59,7 +59,7 @@ Then the greedy search routine operates as follows:
There are three key parameters to set when constructing an HNSW index:
* `metric`: Use an `l2` euclidean distance metric. We also support `dot` and `cosine` distance.
* `metric`: Use an `L2` euclidean distance metric. We also support `dot` and `cosine` distance.
* `m`: The number of neighbors to select for each vector in the HNSW graph.
* `ef_construction`: The number of candidates to evaluate during the construction of the HNSW graph.

View File

@@ -47,7 +47,7 @@ We can combine the above concepts to understand how to build and query an IVF-PQ
There are three key parameters to set when constructing an IVF-PQ index:
* `metric`: Use an `l2` euclidean distance metric. We also support `dot` and `cosine` distance.
* `metric`: Use an `L2` euclidean distance metric. We also support `dot` and `cosine` distance.
* `num_partitions`: The number of partitions in the IVF portion of the index.
* `num_sub_vectors`: The number of sub-vectors that will be created during Product Quantization (PQ).
@@ -56,7 +56,7 @@ In Python, the index can be created as follows:
```python
# Create and train the index for a 1536-dimensional vector
# Make sure you have enough data in the table for an effective training step
tbl.create_index(metric="l2", num_partitions=256, num_sub_vectors=96)
tbl.create_index(metric="L2", num_partitions=256, num_sub_vectors=96)
```
!!! note
`num_partitions`=256 and `num_sub_vectors`=96 does not work for every dataset. Those values needs to be adjusted for your particular dataset.

View File

@@ -6,7 +6,6 @@ LanceDB registers the OpenAI embeddings function in the registry by default, as
|---|---|---|---|
| `name` | `str` | `"text-embedding-ada-002"` | The name of the model. |
| `dim` | `int` | Model default | For OpenAI's newer text-embedding-3 model, we can specify a dimensionality that is smaller than the 1536 size. This feature supports it |
| `use_azure` | bool | `False` | Set true to use Azure OpenAPI SDK |
```python

View File

@@ -55,14 +55,6 @@ Let's implement `SentenceTransformerEmbeddings` class. All you need to do is imp
This is a stripped down version of our implementation of `SentenceTransformerEmbeddings` that removes certain optimizations and default settings.
!!! danger "Use sensitive keys to prevent leaking secrets"
To prevent leaking secrets, such as API keys, you should add any sensitive
parameters of an embedding function to the output of the
[sensitive_keys()][lancedb.embeddings.base.EmbeddingFunction.sensitive_keys] /
[getSensitiveKeys()](../../js/namespaces/embedding/classes/EmbeddingFunction/#getsensitivekeys)
method. This prevents users from accidentally instantiating the embedding
function with hard-coded secrets.
Now you can use this embedding function to create your table schema and that's it! you can then ingest data and run queries without manually vectorizing the inputs.
=== "Python"

View File

@@ -54,7 +54,7 @@ As mentioned, after creating embedding, each data point is represented as a vect
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.
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.

View File

@@ -1,53 +0,0 @@
# Variable and Secrets
Most embedding configuration options are saved in the table's metadata. However,
this isn't always appropriate. For example, API keys should never be stored in the
metadata. Additionally, other configuration options might be best set at runtime,
such as the `device` configuration that controls whether to use GPU or CPU for
inference. If you hardcoded this to GPU, you wouldn't be able to run the code on
a server without one.
To handle these cases, you can set variables on the embedding registry and
reference them in the embedding configuration. These variables will be available
during the runtime of your program, but not saved in the table's metadata. When
the table is loaded from a different process, the variables must be set again.
To set a variable, use the `set_var()` / `setVar()` method on the embedding registry.
To reference a variable, use the syntax `$env:VARIABLE_NAME`. If there is a default
value, you can use the syntax `$env:VARIABLE_NAME:DEFAULT_VALUE`.
## Using variables to set secrets
Sensitive configuration, such as API keys, must either be set as environment
variables or using variables on the embedding registry. If you pass in a hardcoded
value, LanceDB will raise an error. Instead, if you want to set an API key via
configuration, use a variable:
=== "Python"
```python
--8<-- "python/python/tests/docs/test_embeddings_optional.py:register_secret"
```
=== "Typescript"
```typescript
--8<-- "nodejs/examples/embedding.test.ts:register_secret"
```
## Using variables to set the device parameter
Many embedding functions that run locally have a `device` parameter that controls
whether to use GPU or CPU for inference. Because not all computers have a GPU,
it's helpful to be able to set the `device` parameter at runtime, rather than
have it hard coded in the embedding configuration. To make it work even if the
variable isn't set, you could provide a default value of `cpu` in the embedding
configuration.
Some embedding libraries even have a method to detect which devices are available,
which could be used to dynamically set the device at runtime. For example, in Python
you can check if a CUDA GPU is available using `torch.cuda.is_available()`.
```python
--8<-- "python/python/tests/docs/test_embeddings_optional.py:register_device"
```

View File

@@ -8,5 +8,15 @@ LanceDB provides language APIs, allowing you to embed a database in your languag
* 👾 [JavaScript](examples_js.md) examples
* 🦀 Rust examples (coming soon)
!!! tip "Hosted LanceDB"
If you want S3 cost-efficiency and local performance via a simple serverless API, checkout **LanceDB Cloud**. For private deployments, high performance at extreme scale, or if you have strict security requirements, talk to us about **LanceDB Enterprise**. [Learn more](https://docs.lancedb.com/)
## 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. |

View File

@@ -1 +0,0 @@
!function(){var e,t,n;e="9627b71b382d201",t=function(){Reo.init({clientID:"9627b71b382d201"})},(n=document.createElement("script")).src="https://static.reo.dev/"+e+"/reo.js",n.defer=!0,n.onload=t,document.head.appendChild(n)}();

View File

@@ -10,20 +10,28 @@ LanceDB provides support for full-text search via Lance, allowing you to incorpo
Consider that we have a LanceDB table named `my_table`, whose string column `text` we want to index and query via keyword search, the FTS index must be created before you can search via keywords.
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_search.py:import-lancedb"
--8<-- "python/python/tests/docs/test_search.py:import-lancedb-fts"
--8<-- "python/python/tests/docs/test_search.py:basic_fts"
```
=== "Async API"
```python
import lancedb
```python
--8<-- "python/python/tests/docs/test_search.py:import-lancedb"
--8<-- "python/python/tests/docs/test_search.py:import-lancedb-fts"
--8<-- "python/python/tests/docs/test_search.py:basic_fts_async"
```
uri = "data/sample-lancedb"
db = lancedb.connect(uri)
table = db.create_table(
"my_table",
data=[
{"vector": [3.1, 4.1], "text": "Frodo was a happy puppy"},
{"vector": [5.9, 26.5], "text": "There are several kittens playing"},
],
)
# passing `use_tantivy=False` to use lance FTS index
# `use_tantivy=True` by default
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}]
# ...
```
=== "TypeScript"
@@ -42,7 +50,7 @@ Consider that we have a LanceDB table named `my_table`, whose string column `tex
});
await tbl
.search("puppy", "fts")
.search("puppy", queryType="fts")
.select(["text"])
.limit(10)
.toArray();
@@ -85,32 +93,22 @@ By default the text is tokenized by splitting on punctuation and whitespaces, an
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.
For example, to enable stemming for English:
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_search.py:fts_config_stem"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_search.py:fts_config_stem_async"
```
```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.
The tokenizer is customizable, you can specify how the tokenizer splits the text, and how it filters out words, etc.
For example, for language with accents, you can specify the tokenizer to use `ascii_folding` to remove accents, e.g. 'é' to 'e':
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_search.py:fts_config_folding"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_search.py:fts_config_folding_async"
```
```python
table.create_fts_index("text",
use_tantivy=False,
language="French",
stem=True,
ascii_folding=True)
```
## Filtering
@@ -121,16 +119,9 @@ This can be invoked via the familiar `where` syntax.
With pre-filtering:
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_search.py:fts_prefiltering"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_search.py:fts_prefiltering_async"
```
```python
table.search("puppy").limit(10).where("meta='foo'", prefilte=True).to_list()
```
=== "TypeScript"
@@ -160,16 +151,9 @@ With pre-filtering:
With post-filtering:
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_search.py:fts_postfiltering"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_search.py:fts_postfiltering_async"
```
```python
table.search("puppy").limit(10).where("meta='foo'", prefilte=False).to_list()
```
=== "TypeScript"
@@ -207,16 +191,9 @@ 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).
To search for a phrase, the index must be created with `with_position=True`:
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_search.py:fts_with_position"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_search.py:fts_with_position_async"
```
```python
table.create_fts_index("text", use_tantivy=False, with_position=True)
```
This will allow you to search for phrases, but it will also significantly increase the index size and indexing time.
@@ -228,16 +205,10 @@ This can make the query more efficient, especially when the table is large and t
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_search.py:fts_incremental_index"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_search.py:fts_incremental_index_async"
```
```python
table.add([{"vector": [3.1, 4.1], "text": "Frodo was a happy puppy"}])
table.optimize()
```
=== "TypeScript"

View File

@@ -2,7 +2,7 @@
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 synchronous APIs and does not support building indexes on object storage or incremental indexing. If you need these features, try native FTS [native FTS](fts.md).
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

View File

@@ -1,85 +0,0 @@
# Late interaction & MultiVector embedding type
Late interaction is a technique used in retrieval that calculates the relevance of a query to a document by comparing their multi-vector representations. The key difference between late interaction and other popular methods:
![late interaction vs other methods](https://raw.githubusercontent.com/lancedb/assets/b035a0ceb2c237734e0d393054c146d289792339/docs/assets/integration/colbert-blog-interaction.svg)
[ Illustration from https://jina.ai/news/what-is-colbert-and-late-interaction-and-why-they-matter-in-search/]
<b>No interaction:</b> Refers to independently embedding the query and document, that are compared to calcualte similarity without any interaction between them. This is typically used in vector search operations.
<b>Partial interaction</b> Refers to a specific approach where the similarity computation happens primarily between query vectors and document vectors, without extensive interaction between individual components of each. An example of this is dual-encoder models like BERT.
<b>Early full interaction</b> Refers to techniques like cross-encoders that process query and docs in pairs with full interaction across various stages of encoding. This is a powerful, but relatively slower technique. Because it requires processing query and docs in pairs, doc embeddings can't be pre-computed for fast retrieval. This is why cross encoders are typically used as reranking models combined with vector search. Learn more about [LanceDB Reranking support](https://lancedb.github.io/lancedb/reranking/).
<b>Late interaction</b> Late interaction is a technique that calculates the doc and query similarity independently and then the interaction or evaluation happens during the retrieval process. This is typically used in retrieval models like ColBERT. Unlike early interaction, It allows speeding up the retrieval process without compromising the depth of semantic analysis.
## Internals of ColBERT
Let's take a look at the steps involved in performing late interaction based retrieval using ColBERT:
• ColBERT employs BERT-based encoders for both queries `(fQ)` and documents `(fD)`
• A single BERT model is shared between query and document encoders and special tokens distinguish input types: `[Q]` for queries and `[D]` for documents
**Query Encoder (fQ):**
• Query q is tokenized into WordPiece tokens: `q1, q2, ..., ql`. `[Q]` token is prepended right after BERT's `[CLS]` token
• If query length < Nq, it's padded with [MASK] tokens up to Nq.
The padded sequence goes through BERT's transformer architecture
Final embeddings are L2-normalized.
**Document Encoder (fD):**
Document d is tokenized into tokens `d1, d2, ..., dm`. `[D]` token is prepended after `[CLS]` token
Unlike queries, documents are NOT padded with `[MASK]` tokens
Document tokens are processed through BERT and the same linear layer
**Late Interaction:**
Late interaction estimates relevance score `S(q,d)` using embedding `Eq` and `Ed`. Late interaction happens after independent encoding
For each query embedding, maximum similarity is computed against all document embeddings
The similarity measure can be cosine similarity or squared L2 distance
**MaxSim Calculation:**
```
S(q,d) := Σ max(Eqi⋅EdjT)
i∈|Eq| j∈|Ed|
```
This finds the best matching document embedding for each query embedding
Captures relevance based on strongest local matches between contextual embeddings
## LanceDB MultiVector type
LanceDB supports multivector type, this is useful when you have multiple vectors for a single item (e.g. with ColBert and ColPali).
You can index on a column with multivector type and search on it, the query can be single vector or multiple vectors. For now, only cosine metric is supported for multivector search. The vector value type can be float16, float32 or float64. LanceDB integrateds [ConteXtualized Token Retriever(XTR)](https://arxiv.org/abs/2304.01982), which introduces a simple, yet novel, objective function that encourages the model to retrieve the most important document tokens first.
```python
import lancedb
import numpy as np
import pyarrow as pa
db = lancedb.connect("data/multivector_demo")
schema = pa.schema(
[
pa.field("id", pa.int64()),
# float16, float32, and float64 are supported
pa.field("vector", pa.list_(pa.list_(pa.float32(), 256))),
]
)
data = [
{
"id": i,
"vector": np.random.random(size=(2, 256)).tolist(),
}
for i in range(1024)
]
tbl = db.create_table("my_table", data=data, schema=schema)
# only cosine similarity is supported for multi-vectors
tbl.create_index(metric="cosine")
# query with single vector
query = np.random.random(256).astype(np.float16)
tbl.search(query).to_arrow()
# query with multiple vectors
query = np.random.random(size=(2, 256))
tbl.search(query).to_arrow()
```
Find more about vector search in LanceDB [here](https://lancedb.github.io/lancedb/search/#multivector-type).

View File

@@ -1,51 +1,38 @@
# Building a Scalar Index
# Building Scalar Index
Scalar indices organize data by scalar attributes (e.g. numbers, categorical values), enabling fast filtering of vector data. In vector databases, scalar indices accelerate the retrieval of scalar data associated with vectors, thus enhancing the query performance when searching for vectors that meet certain scalar criteria.
Similar to many SQL databases, LanceDB supports several types of scalar indices to accelerate search
Similar to many SQL databases, LanceDB supports several types of Scalar indices to accelerate search
over scalar columns.
- `BTREE`: The most common type is BTREE. The index stores a copy of the
column in sorted order. This sorted copy allows a binary search to be used to
satisfy queries.
- `BITMAP`: this index stores a bitmap for each unique value in the column. It
uses a series of bits to indicate whether a value is present in a row of a table
- `LABEL_LIST`: a special index that can be used on `List<T>` columns to
support queries with `array_contains_all` and `array_contains_any`
using an underlying bitmap index.
- `BTREE`: The most common type is BTREE. This index is inspired by the btree data structure
although only the first few layers of the btree are cached in memory.
It will perform well on columns with a large number of unique values and few rows per value.
- `BITMAP`: this index stores a bitmap for each unique value in the column.
This index is useful for columns with a finite number of unique values and many rows per value.
For example, columns that represent "categories", "labels", or "tags"
- `LABEL_LIST`: a special index that is used to index list columns whose values have a finite set of possibilities.
For example, a column that contains lists of tags (e.g. `["tag1", "tag2", "tag3"]`) can be indexed with a `LABEL_LIST` index.
!!! tips "How to choose the right scalar index type"
`BTREE`: This index is good for scalar columns with mostly distinct values and does best when the query is highly selective.
`BITMAP`: This index works best for low-cardinality numeric or string columns, where the number of unique values is small (i.e., less than a few thousands).
`LABEL_LIST`: This index should be used for columns containing list-type data.
| Data Type | Filter | Index Type |
| --------------------------------------------------------------- | ----------------------------------------- | ------------ |
| Numeric, String, Temporal | `<`, `=`, `>`, `in`, `between`, `is null` | `BTREE` |
| Boolean, numbers or strings with fewer than 1,000 unique values | `<`, `=`, `>`, `in`, `between`, `is null` | `BITMAP` |
| List of low cardinality of numbers or strings | `array_has_any`, `array_has_all` | `LABEL_LIST` |
### Create a scalar index
=== "Python"
=== "Sync API"
```python
import lancedb
books = [
{"book_id": 1, "publisher": "plenty of books", "tags": ["fantasy", "adventure"]},
{"book_id": 2, "publisher": "book town", "tags": ["non-fiction"]},
{"book_id": 3, "publisher": "oreilly", "tags": ["textbook"]}
]
```python
--8<-- "python/python/tests/docs/test_guide_index.py:import-lancedb"
--8<-- "python/python/tests/docs/test_guide_index.py:import-lancedb-btree-bitmap"
--8<-- "python/python/tests/docs/test_guide_index.py:basic_scalar_index"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_index.py:import-lancedb"
--8<-- "python/python/tests/docs/test_guide_index.py:import-lancedb-btree-bitmap"
--8<-- "python/python/tests/docs/test_guide_index.py:basic_scalar_index_async"
```
db = lancedb.connect("./db")
table = db.create_table("books", books)
table.create_scalar_index("book_id") # BTree by default
table.create_scalar_index("publisher", index_type="BITMAP")
```
=== "Typescript"
@@ -59,22 +46,16 @@ over scalar columns.
await tlb.create_index("publisher", { config: lancedb.Index.bitmap() })
```
The following scan will be faster if the column `book_id` has a scalar index:
For example, the following scan will be faster if the column `my_col` has a scalar index:
=== "Python"
=== "Sync API"
```python
import lancedb
```python
--8<-- "python/python/tests/docs/test_guide_index.py:import-lancedb"
--8<-- "python/python/tests/docs/test_guide_index.py:search_with_scalar_index"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_index.py:import-lancedb"
--8<-- "python/python/tests/docs/test_guide_index.py:search_with_scalar_index_async"
```
table = db.open_table("books")
my_df = table.search().where("book_id = 2").to_pandas()
```
=== "Typescript"
@@ -95,18 +76,22 @@ Scalar indices can also speed up scans containing a vector search or full text s
=== "Python"
=== "Sync API"
```python
import lancedb
```python
--8<-- "python/python/tests/docs/test_guide_index.py:import-lancedb"
--8<-- "python/python/tests/docs/test_guide_index.py:vector_search_with_scalar_index"
```
=== "Async API"
data = [
{"book_id": 1, "vector": [1, 2]},
{"book_id": 2, "vector": [3, 4]},
{"book_id": 3, "vector": [5, 6]}
]
table = db.create_table("book_with_embeddings", data)
```python
--8<-- "python/python/tests/docs/test_guide_index.py:import-lancedb"
--8<-- "python/python/tests/docs/test_guide_index.py:vector_search_with_scalar_index_async"
```
(
table.search([1, 2])
.where("book_id != 3", prefilter=True)
.to_pandas()
)
```
=== "Typescript"
@@ -121,36 +106,3 @@ Scalar indices can also speed up scans containing a vector search or full text s
.limit(10)
.toArray();
```
### Update a scalar index
Updating the table data (adding, deleting, or modifying records) requires that you also update the scalar index. This can be done by calling `optimize`, which will trigger an update to the existing scalar index.
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_index.py:update_scalar_index"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_index.py:update_scalar_index_async"
```
=== "TypeScript"
```typescript
await tbl.add([{ vector: [7, 8], book_id: 4 }]);
await tbl.optimize();
```
=== "Rust"
```rust
let more_data: Box<dyn RecordBatchReader + Send> = create_some_records()?;
tbl.add(more_data).execute().await?;
tbl.optimize(OptimizeAction::All).execute().await?;
```
!!! note
New data added after creating the scalar index will still appear in search results if optimize is not used, but with increased latency due to a flat search on the unindexed portion. LanceDB Cloud automates the optimize process, minimizing the impact on search speed.

View File

@@ -12,52 +12,25 @@ LanceDB OSS supports object stores such as AWS S3 (and compatible stores), Azure
=== "Python"
AWS S3:
=== "Sync API"
```python
import lancedb
db = lancedb.connect("s3://bucket/path")
```
=== "Async API"
```python
import lancedb
async_db = await lancedb.connect_async("s3://bucket/path")
```
```python
import lancedb
db = lancedb.connect("s3://bucket/path")
```
Google Cloud Storage:
=== "Sync API"
```python
import lancedb
db = lancedb.connect("gs://bucket/path")
```
=== "Async API"
```python
import lancedb
async_db = await lancedb.connect_async("gs://bucket/path")
```
```python
import lancedb
db = lancedb.connect("gs://bucket/path")
```
Azure Blob Storage:
<!-- skip-test -->
=== "Sync API"
```python
import lancedb
db = lancedb.connect("az://bucket/path")
```
<!-- skip-test -->
=== "Async API"
```python
import lancedb
async_db = await lancedb.connect_async("az://bucket/path")
```
Note that for Azure, storage credentials must be configured. See [below](#azure-blob-storage) for more details.
```python
import lancedb
db = lancedb.connect("az://bucket/path")
```
=== "TypeScript"
@@ -114,28 +87,22 @@ In most cases, when running in the respective cloud and permissions are set up c
export TIMEOUT=60s
```
!!! note "`storage_options` availability"
The `storage_options` parameter is only available in Python *async* API and JavaScript API.
It is not yet supported in the Python synchronous API.
If you only want this to apply to one particular connection, you can pass the `storage_options` argument when opening the connection:
=== "Python"
=== "Sync API"
```python
import lancedb
db = lancedb.connect(
"s3://bucket/path",
storage_options={"timeout": "60s"}
)
```
=== "Async API"
```python
import lancedb
async_db = await lancedb.connect_async(
"s3://bucket/path",
storage_options={"timeout": "60s"}
)
```
```python
import lancedb
db = await lancedb.connect_async(
"s3://bucket/path",
storage_options={"timeout": "60s"}
)
```
=== "TypeScript"
@@ -163,29 +130,15 @@ Getting even more specific, you can set the `timeout` for only a particular tabl
=== "Python"
<!-- skip-test -->
=== "Sync API"
```python
import lancedb
db = lancedb.connect("s3://bucket/path")
table = db.create_table(
"table",
[{"a": 1, "b": 2}],
storage_options={"timeout": "60s"}
)
```
<!-- skip-test -->
=== "Async API"
```python
import lancedb
async_db = await lancedb.connect_async("s3://bucket/path")
async_table = await async_db.create_table(
"table",
[{"a": 1, "b": 2}],
storage_options={"timeout": "60s"}
)
```
```python
import lancedb
db = await lancedb.connect_async("s3://bucket/path")
table = await db.create_table(
"table",
[{"a": 1, "b": 2}],
storage_options={"timeout": "60s"}
)
```
=== "TypeScript"
@@ -243,32 +196,17 @@ These can be set as environment variables or passed in the `storage_options` par
=== "Python"
=== "Sync API"
```python
import lancedb
db = lancedb.connect(
"s3://bucket/path",
storage_options={
"aws_access_key_id": "my-access-key",
"aws_secret_access_key": "my-secret-key",
"aws_session_token": "my-session-token",
}
)
```
=== "Async API"
```python
import lancedb
async_db = await lancedb.connect_async(
"s3://bucket/path",
storage_options={
"aws_access_key_id": "my-access-key",
"aws_secret_access_key": "my-secret-key",
"aws_session_token": "my-session-token",
}
)
```
```python
import lancedb
db = await lancedb.connect_async(
"s3://bucket/path",
storage_options={
"aws_access_key_id": "my-access-key",
"aws_secret_access_key": "my-secret-key",
"aws_session_token": "my-session-token",
}
)
```
=== "TypeScript"
@@ -342,7 +280,7 @@ For **read and write access**, LanceDB will need a policy such as:
"Action": [
"s3:PutObject",
"s3:GetObject",
"s3:DeleteObject"
"s3:DeleteObject",
],
"Resource": "arn:aws:s3:::<bucket>/<prefix>/*"
},
@@ -374,7 +312,7 @@ For **read-only access**, LanceDB will need a policy such as:
{
"Effect": "Allow",
"Action": [
"s3:GetObject"
"s3:GetObject",
],
"Resource": "arn:aws:s3:::<bucket>/<prefix>/*"
},
@@ -412,22 +350,12 @@ name of the table to use.
=== "Python"
=== "Sync API"
```python
import lancedb
db = lancedb.connect(
"s3+ddb://bucket/path?ddbTableName=my-dynamodb-table",
)
```
=== "Async API"
```python
import lancedb
async_db = await lancedb.connect_async(
"s3+ddb://bucket/path?ddbTableName=my-dynamodb-table",
)
```
```python
import lancedb
db = await lancedb.connect_async(
"s3+ddb://bucket/path?ddbTableName=my-dynamodb-table",
)
```
=== "JavaScript"
@@ -515,30 +443,16 @@ LanceDB can also connect to S3-compatible stores, such as MinIO. To do so, you m
=== "Python"
=== "Sync API"
```python
import lancedb
db = lancedb.connect(
"s3://bucket/path",
storage_options={
"region": "us-east-1",
"endpoint": "http://minio:9000",
}
)
```
=== "Async API"
```python
import lancedb
async_db = await lancedb.connect_async(
"s3://bucket/path",
storage_options={
"region": "us-east-1",
"endpoint": "http://minio:9000",
}
)
```
```python
import lancedb
db = await lancedb.connect_async(
"s3://bucket/path",
storage_options={
"region": "us-east-1",
"endpoint": "http://minio:9000",
}
)
```
=== "TypeScript"
@@ -590,30 +504,16 @@ To configure LanceDB to use an S3 Express endpoint, you must set the storage opt
=== "Python"
=== "Sync API"
```python
import lancedb
db = lancedb.connect(
"s3://my-bucket--use1-az4--x-s3/path",
storage_options={
"region": "us-east-1",
"s3_express": "true",
}
)
```
=== "Async API"
```python
import lancedb
async_db = await lancedb.connect_async(
"s3://my-bucket--use1-az4--x-s3/path",
storage_options={
"region": "us-east-1",
"s3_express": "true",
}
)
```
```python
import lancedb
db = await lancedb.connect_async(
"s3://my-bucket--use1-az4--x-s3/path",
storage_options={
"region": "us-east-1",
"s3_express": "true",
}
)
```
=== "TypeScript"
@@ -654,29 +554,15 @@ GCS credentials are configured by setting the `GOOGLE_SERVICE_ACCOUNT` environme
=== "Python"
<!-- skip-test -->
=== "Sync API"
```python
import lancedb
db = lancedb.connect(
"gs://my-bucket/my-database",
storage_options={
"service_account": "path/to/service-account.json",
}
)
```
<!-- skip-test -->
=== "Async API"
```python
import lancedb
async_db = await lancedb.connect_async(
"gs://my-bucket/my-database",
storage_options={
"service_account": "path/to/service-account.json",
}
)
```
```python
import lancedb
db = await lancedb.connect_async(
"gs://my-bucket/my-database",
storage_options={
"service_account": "path/to/service-account.json",
}
)
```
=== "TypeScript"
@@ -728,31 +614,16 @@ Azure Blob Storage credentials can be configured by setting the `AZURE_STORAGE_A
=== "Python"
<!-- skip-test -->
=== "Sync API"
```python
import lancedb
db = lancedb.connect(
"az://my-container/my-database",
storage_options={
account_name: "some-account",
account_key: "some-key",
}
)
```
<!-- skip-test -->
=== "Async API"
```python
import lancedb
async_db = await lancedb.connect_async(
"az://my-container/my-database",
storage_options={
account_name: "some-account",
account_key: "some-key",
}
)
```
```python
import lancedb
db = await lancedb.connect_async(
"az://my-container/my-database",
storage_options={
account_name: "some-account",
account_key: "some-key",
}
)
```
=== "TypeScript"

View File

@@ -12,18 +12,10 @@ Initialize a LanceDB connection and create a table
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-lancedb"
--8<-- "python/python/tests/docs/test_guide_tables.py:connect"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-lancedb"
--8<-- "python/python/tests/docs/test_guide_tables.py:connect_async"
```
```python
import lancedb
db = lancedb.connect("./.lancedb")
```
LanceDB allows ingesting data from various sources - `dict`, `list[dict]`, `pd.DataFrame`, `pa.Table` or a `Iterator[pa.RecordBatch]`. Let's take a look at some of the these.
@@ -55,16 +47,18 @@ Initialize a LanceDB connection and create a table
=== "Python"
=== "Sync API"
```python
import lancedb
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table"
```
=== "Async API"
db = lancedb.connect("./.lancedb")
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_async"
```
data = [{"vector": [1.1, 1.2], "lat": 45.5, "long": -122.7},
{"vector": [0.2, 1.8], "lat": 40.1, "long": -74.1}]
db.create_table("my_table", data)
db["my_table"].head()
```
!!! info "Note"
If the table already exists, LanceDB will raise an error by default.
@@ -73,30 +67,16 @@ Initialize a LanceDB connection and create a table
and the table exists, then it simply opens the existing table. The data you
passed in will NOT be appended to the table in that case.
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_exist_ok"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_async_exist_ok"
```
```python
db.create_table("name", data, exist_ok=True)
```
Sometimes you want to make sure that you start fresh. If you want to
overwrite the table, you can pass in mode="overwrite" to the createTable function.
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_overwrite"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_async_overwrite"
```
```python
db.create_table("name", data, mode="overwrite")
```
=== "Typescript[^1]"
You can create a LanceDB table in JavaScript using an array of records as follows.
@@ -166,37 +146,34 @@ Initialize a LanceDB connection and create a table
### From a Pandas DataFrame
```python
import pandas as pd
=== "Sync API"
data = pd.DataFrame({
"vector": [[1.1, 1.2, 1.3, 1.4], [0.2, 1.8, 0.4, 3.6]],
"lat": [45.5, 40.1],
"long": [-122.7, -74.1]
})
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-pandas"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_from_pandas"
```
=== "Async API"
db.create_table("my_table", data)
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-pandas"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_async_from_pandas"
```
db["my_table"].head()
```
!!! info "Note"
Data is converted to Arrow before being written to disk. For maximum control over how data is saved, either provide the PyArrow schema to convert to or else provide a PyArrow Table directly.
The **`vector`** column needs to be a [Vector](../python/pydantic.md#vector-field) (defined as [pyarrow.FixedSizeList](https://arrow.apache.org/docs/python/generated/pyarrow.list_.html)) type.
=== "Sync API"
```python
custom_schema = pa.schema([
pa.field("vector", pa.list_(pa.float32(), 4)),
pa.field("lat", pa.float32()),
pa.field("long", pa.float32())
])
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-pyarrow"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_custom_schema"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-pyarrow"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_async_custom_schema"
```
table = db.create_table("my_table", data, schema=custom_schema)
```
### From a Polars DataFrame
@@ -205,38 +182,45 @@ written in Rust. Just like in Pandas, the Polars integration is enabled by PyArr
under the hood. A deeper integration between LanceDB Tables and Polars DataFrames
is on the way.
=== "Sync API"
```python
import polars as pl
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-polars"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_from_polars"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-polars"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_async_from_polars"
```
data = pl.DataFrame({
"vector": [[3.1, 4.1], [5.9, 26.5]],
"item": ["foo", "bar"],
"price": [10.0, 20.0]
})
table = db.create_table("pl_table", data=data)
```
### From an Arrow Table
You can also create LanceDB tables directly from Arrow tables.
LanceDB supports float16 data type!
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-pyarrow"
--8<-- "python/python/tests/docs/test_guide_tables.py:import-numpy"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_from_arrow_table"
```
=== "Async API"
```python
import pyarrows as pa
import numpy as np
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-polars"
--8<-- "python/python/tests/docs/test_guide_tables.py:import-numpy"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_async_from_arrow_table"
```
dim = 16
total = 2
schema = pa.schema(
[
pa.field("vector", pa.list_(pa.float16(), dim)),
pa.field("text", pa.string())
]
)
data = pa.Table.from_arrays(
[
pa.array([np.random.randn(dim).astype(np.float16) for _ in range(total)],
pa.list_(pa.float16(), dim)),
pa.array(["foo", "bar"])
],
["vector", "text"],
)
tbl = db.create_table("f16_tbl", data, schema=schema)
```
=== "Typescript[^1]"
@@ -266,22 +250,25 @@ can be configured with the vector dimensions. It is also important to note that
LanceDB only understands subclasses of `lancedb.pydantic.LanceModel`
(which itself derives from `pydantic.BaseModel`).
=== "Sync API"
```python
from lancedb.pydantic import Vector, LanceModel
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-lancedb-pydantic"
--8<-- "python/python/tests/docs/test_guide_tables.py:import-pyarrow"
--8<-- "python/python/tests/docs/test_guide_tables.py:class-Content"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_from_pydantic"
```
=== "Async API"
class Content(LanceModel):
movie_id: int
vector: Vector(128)
genres: str
title: str
imdb_id: int
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-lancedb-pydantic"
--8<-- "python/python/tests/docs/test_guide_tables.py:import-pyarrow"
--8<-- "python/python/tests/docs/test_guide_tables.py:class-Content"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_async_from_pydantic"
```
@property
def imdb_url(self) -> str:
return f"https://www.imdb.com/title/tt{self.imdb_id}"
import pyarrow as pa
db = lancedb.connect("~/.lancedb")
table_name = "movielens_small"
table = db.create_table(table_name, schema=Content)
```
#### Nested schemas
@@ -290,24 +277,22 @@ For example, you may want to store the document string
and the document source name as a nested Document object:
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-pydantic-basemodel"
--8<-- "python/python/tests/docs/test_guide_tables.py:class-Document"
class Document(BaseModel):
content: str
source: str
```
This can be used as the type of a LanceDB table column:
=== "Sync API"
```python
class NestedSchema(LanceModel):
id: str
vector: Vector(1536)
document: Document
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:class-NestedSchema"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_nested_schema"
```
=== "Async API"
tbl = db.create_table("nested_table", schema=NestedSchema, mode="overwrite")
```
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:class-NestedSchema"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_async_nested_schema"
```
This creates a struct column called "document" that has two subfields
called "content" and "source":
@@ -371,20 +356,29 @@ LanceDB additionally supports PyArrow's `RecordBatch` Iterators or other generat
Here's an example using using `RecordBatch` iterator for creating tables.
=== "Sync API"
```python
import pyarrow as pa
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-pyarrow"
--8<-- "python/python/tests/docs/test_guide_tables.py:make_batches"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_from_batch"
```
=== "Async API"
def make_batches():
for i in range(5):
yield pa.RecordBatch.from_arrays(
[
pa.array([[3.1, 4.1, 5.1, 6.1], [5.9, 26.5, 4.7, 32.8]],
pa.list_(pa.float32(), 4)),
pa.array(["foo", "bar"]),
pa.array([10.0, 20.0]),
],
["vector", "item", "price"],
)
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-pyarrow"
--8<-- "python/python/tests/docs/test_guide_tables.py:make_batches"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_async_from_batch"
```
schema = pa.schema([
pa.field("vector", pa.list_(pa.float32(), 4)),
pa.field("item", pa.utf8()),
pa.field("price", pa.float32()),
])
db.create_table("batched_tale", make_batches(), schema=schema)
```
You can also use iterators of other types like Pandas DataFrame or Pylists directly in the above example.
@@ -393,29 +387,15 @@ You can also use iterators of other types like Pandas DataFrame or Pylists direc
=== "Python"
If you forget the name of your table, you can always get a listing of all table names.
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:list_tables"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:list_tables_async"
```
```python
print(db.table_names())
```
Then, you can open any existing tables.
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:open_table"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:open_table_async"
```
```python
tbl = db.open_table("my_table")
```
=== "Typescript[^1]"
@@ -438,41 +418,35 @@ You can create an empty table for scenarios where you want to add data to the ta
An empty table can be initialized via a PyArrow schema.
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-lancedb"
--8<-- "python/python/tests/docs/test_guide_tables.py:import-pyarrow"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_empty_table"
```
=== "Async API"
```python
import lancedb
import pyarrow as pa
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-lancedb"
--8<-- "python/python/tests/docs/test_guide_tables.py:import-pyarrow"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_empty_table_async"
```
schema = pa.schema(
[
pa.field("vector", pa.list_(pa.float32(), 2)),
pa.field("item", pa.string()),
pa.field("price", pa.float32()),
])
tbl = db.create_table("empty_table_add", schema=schema)
```
Alternatively, you can also use Pydantic to specify the schema for the empty table. Note that we do not
directly import `pydantic` but instead use `lancedb.pydantic` which is a subclass of `pydantic.BaseModel`
that has been extended to support LanceDB specific types like `Vector`.
=== "Sync API"
```python
import lancedb
from lancedb.pydantic import LanceModel, vector
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-lancedb"
--8<-- "python/python/tests/docs/test_guide_tables.py:import-lancedb-pydantic"
--8<-- "python/python/tests/docs/test_guide_tables.py:class-Item"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_empty_table_pydantic"
```
=== "Async API"
class Item(LanceModel):
vector: Vector(2)
item: str
price: float
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-lancedb"
--8<-- "python/python/tests/docs/test_guide_tables.py:import-lancedb-pydantic"
--8<-- "python/python/tests/docs/test_guide_tables.py:class-Item"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_empty_table_async_pydantic"
```
tbl = db.create_table("empty_table_add", schema=Item.to_arrow_schema())
```
Once the empty table has been created, you can add data to it via the various methods listed in the [Adding to a table](#adding-to-a-table) section.
@@ -499,96 +473,86 @@ After a table has been created, you can always add more data to it using the `ad
### Add a Pandas DataFrame
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:add_table_from_pandas"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:add_table_async_from_pandas"
```
```python
df = pd.DataFrame({
"vector": [[1.3, 1.4], [9.5, 56.2]], "item": ["banana", "apple"], "price": [5.0, 7.0]
})
tbl.add(df)
```
### Add a Polars DataFrame
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:add_table_from_polars"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:add_table_async_from_polars"
```
```python
df = pl.DataFrame({
"vector": [[1.3, 1.4], [9.5, 56.2]], "item": ["banana", "apple"], "price": [5.0, 7.0]
})
tbl.add(df)
```
### Add an Iterator
You can also add a large dataset batch in one go using Iterator of any supported data types.
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:make_batches_for_add"
--8<-- "python/python/tests/docs/test_guide_tables.py:add_table_from_batch"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:make_batches_for_add"
--8<-- "python/python/tests/docs/test_guide_tables.py:add_table_async_from_batch"
```
```python
def make_batches():
for i in range(5):
yield [
{"vector": [3.1, 4.1], "item": "peach", "price": 6.0},
{"vector": [5.9, 26.5], "item": "pear", "price": 5.0}
]
tbl.add(make_batches())
```
### Add a PyArrow table
If you have data coming in as a PyArrow table, you can add it directly to the LanceDB table.
=== "Sync API"
```python
pa_table = pa.Table.from_arrays(
[
pa.array([[9.1, 6.7], [9.9, 31.2]],
pa.list_(pa.float32(), 2)),
pa.array(["mango", "orange"]),
pa.array([7.0, 4.0]),
],
["vector", "item", "price"],
)
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:add_table_from_pyarrow"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:add_table_async_from_pyarrow"
```
tbl.add(pa_table)
```
### Add a Pydantic Model
Assuming that a table has been created with the correct schema as shown [above](#creating-empty-table), you can add data items that are valid Pydantic models to the table.
=== "Sync API"
```python
pydantic_model_items = [
Item(vector=[8.1, 4.7], item="pineapple", price=10.0),
Item(vector=[6.9, 9.3], item="avocado", price=9.0)
]
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:add_table_from_pydantic"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:add_table_async_from_pydantic"
```
tbl.add(pydantic_model_items)
```
??? "Ingesting Pydantic models with LanceDB embedding API"
When using LanceDB's embedding API, you can add Pydantic models directly to the table. LanceDB will automatically convert the `vector` field to a vector before adding it to the table. You need to specify the default value of `vector` field as None to allow LanceDB to automatically vectorize the data.
=== "Sync API"
```python
import lancedb
from lancedb.pydantic import LanceModel, Vector
from lancedb.embeddings import get_registry
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-lancedb"
--8<-- "python/python/tests/docs/test_guide_tables.py:import-lancedb-pydantic"
--8<-- "python/python/tests/docs/test_guide_tables.py:import-embeddings"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_with_embedding"
```
=== "Async API"
db = lancedb.connect("~/tmp")
embed_fcn = get_registry().get("huggingface").create(name="BAAI/bge-small-en-v1.5")
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-lancedb"
--8<-- "python/python/tests/docs/test_guide_tables.py:import-lancedb-pydantic"
--8<-- "python/python/tests/docs/test_guide_tables.py:import-embeddings"
--8<-- "python/python/tests/docs/test_guide_tables.py:create_table_async_with_embedding"
```
class Schema(LanceModel):
text: str = embed_fcn.SourceField()
vector: Vector(embed_fcn.ndims()) = embed_fcn.VectorField(default=None)
tbl = db.create_table("my_table", schema=Schema, mode="overwrite")
models = [Schema(text="hello"), Schema(text="world")]
tbl.add(models)
```
=== "Typescript[^1]"
@@ -601,79 +565,50 @@ After a table has been created, you can always add more data to it using the `ad
)
```
## Upserting into a table
Upserting lets you insert new rows or update existing rows in a table. To upsert
in LanceDB, use the merge insert API.
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_merge_insert.py:upsert_basic"
```
**API Reference**: [lancedb.table.Table.merge_insert][]
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_merge_insert.py:upsert_basic_async"
```
**API Reference**: [lancedb.table.AsyncTable.merge_insert][]
=== "Typescript[^1]"
=== "@lancedb/lancedb"
```typescript
--8<-- "nodejs/examples/merge_insert.test.ts:upsert_basic"
```
**API Reference**: [lancedb.Table.mergeInsert](../js/classes/Table.md/#mergeInsert)
Read more in the guide on [merge insert](tables/merge_insert.md).
## Deleting from a table
Use the `delete()` method on tables to delete rows from a table. To choose which rows to delete, provide a filter that matches on the metadata columns. This can delete any number of rows that match the filter.
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:delete_row"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:delete_row_async"
```
```python
tbl.delete('item = "fizz"')
```
### Deleting row with specific column value
=== "Sync API"
```python
import lancedb
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:delete_specific_row"
```
=== "Async API"
data = [{"x": 1, "vector": [1, 2]},
{"x": 2, "vector": [3, 4]},
{"x": 3, "vector": [5, 6]}]
db = lancedb.connect("./.lancedb")
table = db.create_table("my_table", data)
table.to_pandas()
# x vector
# 0 1 [1.0, 2.0]
# 1 2 [3.0, 4.0]
# 2 3 [5.0, 6.0]
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:delete_specific_row_async"
```
table.delete("x = 2")
table.to_pandas()
# x vector
# 0 1 [1.0, 2.0]
# 1 3 [5.0, 6.0]
```
### Delete from a list of values
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:delete_list_values"
```
=== "Async API"
```python
to_remove = [1, 5]
to_remove = ", ".join(str(v) for v in to_remove)
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:delete_list_values_async"
```
table.delete(f"x IN ({to_remove})")
table.to_pandas()
# x vector
# 0 3 [5.0, 6.0]
```
=== "Typescript[^1]"
@@ -724,20 +659,27 @@ This can be used to update zero to all rows depending on how many rows match the
=== "Python"
API Reference: [lancedb.table.Table.update][]
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-lancedb"
--8<-- "python/python/tests/docs/test_guide_tables.py:import-pandas"
--8<-- "python/python/tests/docs/test_guide_tables.py:update_table"
```
=== "Async API"
```python
import lancedb
import pandas as pd
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-lancedb"
--8<-- "python/python/tests/docs/test_guide_tables.py:import-pandas"
--8<-- "python/python/tests/docs/test_guide_tables.py:update_table_async"
```
# Create a lancedb connection
db = lancedb.connect("./.lancedb")
# Create a table from a pandas DataFrame
data = pd.DataFrame({"x": [1, 2, 3], "vector": [[1, 2], [3, 4], [5, 6]]})
table = db.create_table("my_table", data)
# Update the table where x = 2
table.update(where="x = 2", values={"vector": [10, 10]})
# Get the updated table as a pandas DataFrame
df = table.to_pandas()
# Print the DataFrame
print(df)
```
Output
```shell
@@ -765,10 +707,7 @@ This can be used to update zero to all rows depending on how many rows match the
];
const tbl = await db.createTable("my_table", data)
await tbl.update({
values: { vector: [10, 10] },
where: "x = 2"
});
await tbl.update({vector: [10, 10]}, { where: "x = 2"})
```
=== "vectordb (deprecated)"
@@ -787,10 +726,7 @@ This can be used to update zero to all rows depending on how many rows match the
];
const tbl = await db.createTable("my_table", data)
await tbl.update({
where: "x = 2",
values: { vector: [10, 10] }
});
await tbl.update({ where: "x = 2", values: {vector: [10, 10]} })
```
#### Updating using a sql query
@@ -798,16 +734,13 @@ This can be used to update zero to all rows depending on how many rows match the
The `values` parameter is used to provide the new values for the columns as literal values. You can also use the `values_sql` / `valuesSql` parameter to provide SQL expressions for the new values. For example, you can use `values_sql="x + 1"` to increment the value of the `x` column by 1.
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:update_table_sql"
```
=== "Async API"
```python
# Update the table where x = 2
table.update(valuesSql={"x": "x + 1"})
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:update_table_sql_async"
```
print(table.to_pandas())
```
Output
```shell
@@ -838,16 +771,11 @@ This can be used to update zero to all rows depending on how many rows match the
Use the `drop_table()` method on the database to remove a table.
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_basic.py:drop_table"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_basic.py:drop_table_async"
```
```python
--8<-- "python/python/tests/docs/test_basic.py:drop_table"
--8<-- "python/python/tests/docs/test_basic.py:drop_table_async"
```
This permanently removes the table and is not recoverable, unlike deleting rows.
By default, if the table does not exist an exception is raised. To suppress this,
@@ -862,123 +790,6 @@ Use the `drop_table()` method on the database to remove a table.
This permanently removes the table and is not recoverable, unlike deleting rows.
If the table does not exist an exception is raised.
## Changing schemas
While tables must have a schema specified when they are created, you can
change the schema over time. There's three methods to alter the schema of
a table:
* `add_columns`: Add new columns to the table
* `alter_columns`: Alter the name, nullability, or data type of a column
* `drop_columns`: Drop columns from the table
### Adding new columns
You can add new columns to the table with the `add_columns` method. New columns
are filled with values based on a SQL expression. For example, you can add a new
column `y` to the table, fill it with the value of `x * 2` and set the expected
data type for it.
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_basic.py:add_columns"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_basic.py:add_columns_async"
```
**API Reference:** [lancedb.table.Table.add_columns][]
=== "Typescript"
```typescript
--8<-- "nodejs/examples/basic.test.ts:add_columns"
```
**API Reference:** [lancedb.Table.addColumns](../js/classes/Table.md/#addcolumns)
If you want to fill it with null, you can use `cast(NULL as <data_type>)` as
the SQL expression to fill the column with nulls, while controlling the data
type of the column. Available data types are base on the
[DataFusion data types](https://datafusion.apache.org/user-guide/sql/data_types.html).
You can use any of the SQL types, such as `BIGINT`:
```sql
cast(NULL as BIGINT)
```
Using Arrow data types and the `arrow_typeof` function is not yet supported.
<!-- TODO: we could provide a better formula for filling with nulls:
https://github.com/lancedb/lance/issues/3175
-->
### Altering existing columns
You can alter the name, nullability, or data type of a column with the `alter_columns`
method.
Changing the name or nullability of a column just updates the metadata. Because
of this, it's a fast operation. Changing the data type of a column requires
rewriting the column, which can be a heavy operation.
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-pyarrow"
--8<-- "python/python/tests/docs/test_basic.py:alter_columns"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-pyarrow"
--8<-- "python/python/tests/docs/test_basic.py:alter_columns_async"
```
**API Reference:** [lancedb.table.Table.alter_columns][]
=== "Typescript"
```typescript
--8<-- "nodejs/examples/basic.test.ts:alter_columns"
```
**API Reference:** [lancedb.Table.alterColumns](../js/classes/Table.md/#altercolumns)
### Dropping columns
You can drop columns from the table with the `drop_columns` method. This will
will remove the column from the schema.
<!-- TODO: Provide guidance on how to reduce disk usage once optimize helps here
waiting on: https://github.com/lancedb/lance/issues/3177
-->
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_basic.py:drop_columns"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_basic.py:drop_columns_async"
```
**API Reference:** [lancedb.table.Table.drop_columns][]
=== "Typescript"
```typescript
--8<-- "nodejs/examples/basic.test.ts:drop_columns"
```
**API Reference:** [lancedb.Table.dropColumns](../js/classes/Table.md/#altercolumns)
## Handling bad vectors
In LanceDB Python, you can use the `on_bad_vectors` parameter to choose how
@@ -1019,46 +830,31 @@ There are three possible settings for `read_consistency_interval`:
To set strong consistency, use `timedelta(0)`:
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-datetime"
--8<-- "python/python/tests/docs/test_guide_tables.py:table_strong_consistency"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-datetime"
--8<-- "python/python/tests/docs/test_guide_tables.py:table_async_strong_consistency"
```
```python
from datetime import timedelta
db = lancedb.connect("./.lancedb",. read_consistency_interval=timedelta(0))
table = db.open_table("my_table")
```
For eventual consistency, use a custom `timedelta`:
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-datetime"
--8<-- "python/python/tests/docs/test_guide_tables.py:table_eventual_consistency"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:import-datetime"
--8<-- "python/python/tests/docs/test_guide_tables.py:table_async_eventual_consistency"
```
```python
from datetime import timedelta
db = lancedb.connect("./.lancedb", read_consistency_interval=timedelta(seconds=5))
table = db.open_table("my_table")
```
By default, a `Table` will never check for updates from other writers. To manually check for updates you can use `checkout_latest`:
=== "Sync API"
```python
db = lancedb.connect("./.lancedb")
table = db.open_table("my_table")
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:table_checkout_latest"
```
=== "Async API"
# (Other writes happen to my_table from another process)
```python
--8<-- "python/python/tests/docs/test_guide_tables.py:table_async_checkout_latest"
```
# Check for updates
table.checkout_latest()
```
=== "Typescript[^1]"
@@ -1066,14 +862,14 @@ There are three possible settings for `read_consistency_interval`:
```ts
const db = await lancedb.connect({ uri: "./.lancedb", readConsistencyInterval: 0 });
const tbl = await db.openTable("my_table");
const table = await db.openTable("my_table");
```
For eventual consistency, specify the update interval as seconds:
```ts
const db = await lancedb.connect({ uri: "./.lancedb", readConsistencyInterval: 5 });
const tbl = await db.openTable("my_table");
const table = await db.openTable("my_table");
```
<!-- Node doesn't yet support the version time travel: https://github.com/lancedb/lancedb/issues/1007

View File

@@ -1,135 +0,0 @@
The merge insert command is a flexible API that can be used to perform:
1. Upsert
2. Insert-if-not-exists
3. Replace range
It works by joining the input data with the target table on a key you provide.
Often this key is a unique row id key. You can then specify what to do when
there is a match and when there is not a match. For example, for upsert you want
to update if the row has a match and insert if the row doesn't have a match.
Whereas for insert-if-not-exists you only want to insert if the row doesn't have
a match.
You can also read more in the API reference:
* Python
* Sync: [lancedb.table.Table.merge_insert][]
* Async: [lancedb.table.AsyncTable.merge_insert][]
* Typescript: [lancedb.Table.mergeInsert](../../js/classes/Table.md/#mergeinsert)
!!! tip "Use scalar indices to speed up merge insert"
The merge insert command needs to perform a join between the input data and the
target table on the `on` key you provide. This requires scanning that entire
column, which can be expensive for large tables. To speed up this operation,
you can create a scalar index on the `on` column, which will allow LanceDB to
find matches without having to scan the whole tables.
Read more about scalar indices in [Building a Scalar Index](../scalar_index.md)
guide.
!!! info "Embedding Functions"
Like the create table and add APIs, the merge insert API will automatically
compute embeddings if the table has a embedding definition in its schema.
If the input data doesn't contain the source column, or the vector column
is already filled, then the embeddings won't be computed. See the
[Embedding Functions](../../embeddings/embedding_functions.md) guide for more
information.
## Upsert
Upsert updates rows if they exist and inserts them if they don't. To do this
with merge insert, enable both `when_matched_update_all()` and
`when_not_matched_insert_all()`.
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_merge_insert.py:upsert_basic"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_merge_insert.py:upsert_basic_async"
```
=== "Typescript"
=== "@lancedb/lancedb"
```typescript
--8<-- "nodejs/examples/merge_insert.test.ts:upsert_basic"
```
!!! note "Providing subsets of columns"
If a column is nullable, it can be omitted from input data and it will be
considered `null`. Columns can also be provided in any order.
## Insert-if-not-exists
To avoid inserting duplicate rows, you can use the insert-if-not-exists command.
This will only insert rows that do not have a match in the target table. To do
this with merge insert, enable just `when_not_matched_insert_all()`.
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_merge_insert.py:insert_if_not_exists"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_merge_insert.py:insert_if_not_exists_async"
```
=== "Typescript"
=== "@lancedb/lancedb"
```typescript
--8<-- "nodejs/examples/merge_insert.test.ts:insert_if_not_exists"
```
## Replace range
You can also replace a range of rows in the target table with the input data.
For example, if you have a table of document chunks, where each chunk has
both a `doc_id` and a `chunk_id`, you can replace all chunks for a given
`doc_id` with updated chunks. This can be tricky otherwise because if you
try to use upsert when the new data has fewer chunks you will end up with
extra chunks. To avoid this, add another clause to delete any chunks for
the document that are not in the new data, with
`when_not_matched_by_source_delete`.
=== "Python"
=== "Sync API"
```python
--8<-- "python/python/tests/docs/test_merge_insert.py:replace_range"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_merge_insert.py:replace_range_async"
```
=== "Typescript"
=== "@lancedb/lancedb"
```typescript
--8<-- "nodejs/examples/merge_insert.test.ts:replace_range"
```

View File

@@ -1,8 +1,8 @@
## Improving retriever performance
Try it yourself: <a href="https://colab.research.google.com/github/lancedb/lancedb/blob/main/docs/src/notebooks/lancedb_reranking.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a><br/>
Try it yourself - <a href="https://colab.research.google.com/github/lancedb/lancedb/blob/main/docs/src/notebooks/lancedb_reranking.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a><br/>
VectorDBs are used as retrievers in recommender or chatbot-based systems for retrieving relevant data based on user queries. For example, retrievers are a critical component of Retrieval Augmented Generation (RAG) acrhitectures. In this section, we will discuss how to improve the performance of retrievers.
VectorDBs are used as retreivers in recommender or chatbot-based systems for retrieving relevant data based on user queries. For example, retriever is a critical component of Retrieval Augmented Generation (RAG) acrhitectures. In this section, we will discuss how to improve the performance of retrievers.
There are serveral ways to improve the performance of retrievers. Some of the common techniques are:
@@ -19,7 +19,7 @@ Using different embedding models is something that's very specific to the use ca
## The dataset
We'll be using a QA dataset generated using a LLama2 review paper. The dataset contains 221 query, context and answer triplets. The queries and answers are generated using GPT-4 based on a given query. Full script used to generate the dataset can be found on this [repo](https://github.com/lancedb/ragged). It can be downloaded from [here](https://github.com/AyushExel/assets/blob/main/data_qa.csv).
We'll be using a QA dataset generated using a LLama2 review paper. The dataset contains 221 query, context and answer triplets. The queries and answers are generated using GPT-4 based on a given query. Full script used to generate the dataset can be found on this [repo](https://github.com/lancedb/ragged). It can be downloaded from [here](https://github.com/AyushExel/assets/blob/main/data_qa.csv)
### Using different query types
Let's setup the embeddings and the dataset first. We'll use the LanceDB's `huggingface` embeddings integration for this guide.
@@ -45,14 +45,14 @@ table.add(df[["context"]].to_dict(orient="records"))
queries = df["query"].tolist()
```
Now that we have the dataset and embeddings table set up, here's how you can run different query types on the dataset:
Now that we have the dataset and embeddings table set up, here's how you can run different query types on the dataset.
* <b> Vector Search: </b>
```python
table.search(quries[0], query_type="vector").limit(5).to_pandas()
```
By default, LanceDB uses vector search query type for searching and it automatically converts the input query to a vector before searching when using embedding API. So, the following statement is equivalent to the above statement:
By default, LanceDB uses vector search query type for searching and it automatically converts the input query to a vector before searching when using embedding API. So, the following statement is equivalent to the above statement.
```python
table.search(quries[0]).limit(5).to_pandas()
@@ -77,7 +77,7 @@ Now that we have the dataset and embeddings table set up, here's how you can run
* <b> Hybrid Search: </b>
Hybrid search is a combination of vector and full-text search. Here's how you can run a hybrid search query on the dataset:
Hybrid search is a combination of vector and full-text search. Here's how you can run a hybrid search query on the dataset.
```python
table.search(quries[0], query_type="hybrid").limit(5).to_pandas()
```
@@ -87,7 +87,7 @@ Now that we have the dataset and embeddings table set up, here's how you can run
!!! note "Note"
By default, it uses `LinearCombinationReranker` that combines the scores from vector and full-text search using a weighted linear combination. It is the simplest reranker implementation available in LanceDB. You can also use other rerankers like `CrossEncoderReranker` or `CohereReranker` for reranking the results.
Learn more about rerankers [here](https://lancedb.github.io/lancedb/reranking/).
Learn more about rerankers [here](https://lancedb.github.io/lancedb/reranking/)

View File

@@ -1,6 +1,6 @@
Continuing from the previous section, we can now rerank the results using more complex rerankers.
Try it yourself: <a href="https://colab.research.google.com/github/lancedb/lancedb/blob/main/docs/src/notebooks/lancedb_reranking.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a><br/>
Try it yourself - <a href="https://colab.research.google.com/github/lancedb/lancedb/blob/main/docs/src/notebooks/lancedb_reranking.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a><br/>
## Reranking search results
You can rerank any search results using a reranker. The syntax for reranking is as follows:
@@ -62,6 +62,9 @@ Let us take a look at the same datasets from the previous sections, using the sa
| Reranked fts | 0.672 |
| Hybrid | 0.759 |
### SQuAD Dataset
### Uber10K sec filing Dataset
| Query Type | Hit-rate@5 |

View File

@@ -1,5 +1,5 @@
## Finetuning the Embedding Model
Try it yourself: <a href="https://colab.research.google.com/github/lancedb/lancedb/blob/main/docs/src/notebooks/embedding_tuner.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a><br/>
Try it yourself - <a href="https://colab.research.google.com/github/lancedb/lancedb/blob/main/docs/src/notebooks/embedding_tuner.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a><br/>
Another way to improve retriever performance is to fine-tune the embedding model itself. Fine-tuning the embedding model can help in learning better representations for the documents and queries in the dataset. This can be particularly useful when the dataset is very different from the pre-trained data used to train the embedding model.
@@ -16,7 +16,7 @@ validation_df.to_csv("data_val.csv", index=False)
You can use any tuning API to fine-tune embedding models. In this example, we'll utilise Llama-index as it also comes with utilities for synthetic data generation and training the model.
We parse the dataset as llama-index text nodes and generate synthetic QA pairs from each node:
Then parse the dataset as llama-index text nodes and generate synthetic QA pairs from each node.
```python
from llama_index.core.node_parser import SentenceSplitter
from llama_index.readers.file import PagedCSVReader
@@ -43,7 +43,7 @@ val_dataset = generate_qa_embedding_pairs(
)
```
Now we'll use `SentenceTransformersFinetuneEngine` engine to fine-tune the model. You can also use `sentence-transformers` or `transformers` library to fine-tune the model:
Now we'll use `SentenceTransformersFinetuneEngine` engine to fine-tune the model. You can also use `sentence-transformers` or `transformers` library to fine-tune the model.
```python
from llama_index.finetuning import SentenceTransformersFinetuneEngine
@@ -57,7 +57,7 @@ finetune_engine = SentenceTransformersFinetuneEngine(
finetune_engine.finetune()
embed_model = finetune_engine.get_finetuned_model()
```
This saves the fine tuned embedding model in `tuned_model` folder.
This saves the fine tuned embedding model in `tuned_model` folder. This al
# Evaluation results
In order to eval the retriever, you can either use this model to ingest the data into LanceDB directly or llama-index's LanceDB integration to create a `VectorStoreIndex` and use it as a retriever.

View File

@@ -3,22 +3,22 @@
Hybrid Search is a broad (often misused) term. It can mean anything from combining multiple methods for searching, to applying ranking methods to better sort the results. In this blog, we use the definition of "hybrid search" to mean using a combination of keyword-based and vector search.
## The challenge of (re)ranking search results
Once you have a group of the most relevant search results from multiple search sources, you'd likely standardize the score and rank them accordingly. This process can also be seen as another independent step:reranking.
Once you have a group of the most relevant search results from multiple search sources, you'd likely standardize the score and rank them accordingly. This process can also be seen as another independent step-reranking.
There are two approaches for reranking search results from multiple sources.
* <b>Score-based</b>: Calculate final relevance scores based on a weighted linear combination of individual search algorithm scores. Example:Weighted linear combination of semantic search & keyword-based search results.
* <b>Score-based</b>: Calculate final relevance scores based on a weighted linear combination of individual search algorithm scores. Example-Weighted linear combination of semantic search & keyword-based search results.
* <b>Relevance-based</b>: Discards the existing scores and calculates the relevance of each search result-query pair. Example:Cross Encoder models
* <b>Relevance-based</b>: Discards the existing scores and calculates the relevance of each search result-query pair. Example-Cross Encoder models
Even though there are many strategies for reranking search results, none works for all cases. Moreover, evaluating them itself is a challenge. Also, reranking can be dataset or application specific so it's hard to generalize.
Even though there are many strategies for reranking search results, none works for all cases. Moreover, evaluating them itself is a challenge. Also, reranking can be dataset, application specific so it's hard to generalize.
### Example evaluation of hybrid search with Reranking
Here's some evaluation numbers from an experiment comparing these rerankers on about 800 queries. It is modified version of an evaluation script from [llama-index](https://github.com/run-llama/finetune-embedding/blob/main/evaluate.ipynb) that measures hit-rate at top-k.
Here's some evaluation numbers from experiment comparing these re-rankers on about 800 queries. It is modified version of an evaluation script from [llama-index](https://github.com/run-llama/finetune-embedding/blob/main/evaluate.ipynb) that measures hit-rate at top-k.
<b> With OpenAI ada2 embedding </b>
Vector Search baseline: `0.64`
Vector Search baseline - `0.64`
| Reranker | Top-3 | Top-5 | Top-10 |
| --- | --- | --- | --- |
@@ -33,7 +33,7 @@ Vector Search baseline: `0.64`
<b> With OpenAI embedding-v3-small </b>
Vector Search baseline: `0.59`
Vector Search baseline - `0.59`
| Reranker | Top-3 | Top-5 | Top-10 |
| --- | --- | --- | --- |

View File

@@ -5,46 +5,57 @@ LanceDB supports both semantic and keyword-based search (also termed full-text s
## Hybrid search in LanceDB
You can perform hybrid search in LanceDB by combining the results of semantic and full-text search via a reranking algorithm of your choice. LanceDB provides multiple rerankers out of the box. However, you can always write a custom reranker if your use case need more sophisticated logic .
=== "Sync API"
```python
import os
```python
--8<-- "python/python/tests/docs/test_search.py:import-os"
--8<-- "python/python/tests/docs/test_search.py:import-openai"
--8<-- "python/python/tests/docs/test_search.py:import-lancedb"
--8<-- "python/python/tests/docs/test_search.py:import-embeddings"
--8<-- "python/python/tests/docs/test_search.py:import-pydantic"
--8<-- "python/python/tests/docs/test_search.py:import-lancedb-fts"
--8<-- "python/python/tests/docs/test_search.py:import-openai-embeddings"
--8<-- "python/python/tests/docs/test_search.py:class-Documents"
--8<-- "python/python/tests/docs/test_search.py:basic_hybrid_search"
```
=== "Async API"
import lancedb
import openai
from lancedb.embeddings import get_registry
from lancedb.pydantic import LanceModel, Vector
```python
--8<-- "python/python/tests/docs/test_search.py:import-os"
--8<-- "python/python/tests/docs/test_search.py:import-openai"
--8<-- "python/python/tests/docs/test_search.py:import-lancedb"
--8<-- "python/python/tests/docs/test_search.py:import-embeddings"
--8<-- "python/python/tests/docs/test_search.py:import-pydantic"
--8<-- "python/python/tests/docs/test_search.py:import-lancedb-fts"
--8<-- "python/python/tests/docs/test_search.py:import-openai-embeddings"
--8<-- "python/python/tests/docs/test_search.py:class-Documents"
--8<-- "python/python/tests/docs/test_search.py:basic_hybrid_search_async"
```
db = lancedb.connect("~/.lancedb")
# Ingest embedding function in LanceDB table
# Configuring the environment variable OPENAI_API_KEY
if "OPENAI_API_KEY" not in os.environ:
# OR set the key here as a variable
openai.api_key = "sk-..."
embeddings = get_registry().get("openai").create()
class Documents(LanceModel):
vector: Vector(embeddings.ndims()) = embeddings.VectorField()
text: str = embeddings.SourceField()
table = db.create_table("documents", schema=Documents)
data = [
{ "text": "rebel spaceships striking from a hidden base"},
{ "text": "have won their first victory against the evil Galactic Empire"},
{ "text": "during the battle rebel spies managed to steal secret plans"},
{ "text": "to the Empire's ultimate weapon the Death Star"}
]
# ingest docs with auto-vectorization
table.add(data)
# Create a fts index before the hybrid search
table.create_fts_index("text")
# hybrid search with default re-ranker
results = table.search("flower moon", query_type="hybrid").to_pandas()
```
!!! Note
You can also pass the vector and text query manually. This is useful if you're not using the embedding API or if you're using a separate embedder service.
### Explicitly passing the vector and text query
=== "Sync API"
```python
vector_query = [0.1, 0.2, 0.3, 0.4, 0.5]
text_query = "flower moon"
results = table.search(query_type="hybrid")
.vector(vector_query)
.text(text_query)
.limit(5)
.to_pandas()
```python
--8<-- "python/python/tests/docs/test_search.py:hybrid_search_pass_vector_text"
```
=== "Async API"
```python
--8<-- "python/python/tests/docs/test_search.py:hybrid_search_pass_vector_text_async"
```
```
By default, LanceDB uses `RRFReranker()`, which uses reciprocal rank fusion score, to combine and rerank the results of semantic and full-text search. You can customize the hyperparameters as needed or write your own custom reranker. Here's how you can use any of the available rerankers:
@@ -57,7 +68,7 @@ By default, LanceDB uses `RRFReranker()`, which uses reciprocal rank fusion scor
## Available Rerankers
LanceDB provides a number of rerankers out of the box. You can use any of these rerankers by passing them to the `rerank()` method.
LanceDB provides a number of re-rankers out of the box. You can use any of these re-rankers by passing them to the `rerank()` method.
Go to [Rerankers](../reranking/index.md) to learn more about using the available rerankers and implementing custom rerankers.

View File

@@ -4,9 +4,6 @@ LanceDB is an open-source vector database for AI that's designed to store, manag
Both the database and the underlying data format are designed from the ground up to be **easy-to-use**, **scalable** and **cost-effective**.
!!! tip "Hosted LanceDB"
If you want S3 cost-efficiency and local performance via a simple serverless API, checkout **LanceDB Cloud**. For private deployments, high performance at extreme scale, or if you have strict security requirements, talk to us about **LanceDB Enterprise**. [Learn more](https://docs.lancedb.com/)
![](assets/lancedb_and_lance.png)
## Truly multi-modal
@@ -23,7 +20,7 @@ LanceDB **OSS** is an **open-source**, batteries-included embedded vector databa
LanceDB **Cloud** is a SaaS (software-as-a-service) solution that runs serverless in the cloud, making the storage clearly separated from compute. It's designed to be cost-effective and highly scalable without breaking the bank. LanceDB Cloud is currently in private beta with general availability coming soon, but you can apply for early access with the private beta release by signing up below.
[Try out LanceDB Cloud (Public Beta) Now](https://cloud.lancedb.com){ .md-button .md-button--primary }
[Try out LanceDB Cloud](https://noteforms.com/forms/lancedb-mailing-list-cloud-kty1o5?notionforms=1&utm_source=notionforms){ .md-button .md-button--primary }
## Why use LanceDB?

View File

@@ -108,7 +108,7 @@ This method creates a scalar(for non-vector cols) or a vector index on a table.
|:---|:---|:---|:---|
|`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`|
|`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`|

View File

@@ -125,7 +125,7 @@ The exhaustive list of parameters for `LanceDBVectorStore` vector store are :
```
- **_table_exists(self, tbl_name: `Optional[str]` = `None`) -> `bool`** : Returns `True` if `tbl_name` exists in database.
- __create_index(
self, scalar: `Optional[bool]` = False, col_name: `Optional[str]` = None, num_partitions: `Optional[int]` = 256, num_sub_vectors: `Optional[int]` = 96, index_cache_size: `Optional[int]` = None, metric: `Optional[str]` = "l2",
self, scalar: `Optional[bool]` = False, col_name: `Optional[str]` = None, num_partitions: `Optional[int]` = 256, num_sub_vectors: `Optional[int]` = 96, index_cache_size: `Optional[int]` = None, metric: `Optional[str]` = "L2",
) -> `None`__ : Creates a scalar(for non-vector cols) or a vector index on a table.
Make sure your vector column has enough data before creating an index on it.

View File

@@ -10,7 +10,7 @@ Distance metrics type.
- [Cosine](MetricType.md#cosine)
- [Dot](MetricType.md#dot)
- [l2](MetricType.md#l2)
- [L2](MetricType.md#l2)
## Enumeration Members

View File

@@ -85,7 +85,7 @@ ___
`Optional` **metric\_type**: [`MetricType`](../enums/MetricType.md)
Metric type, l2 or Cosine
Metric type, L2 or Cosine
#### Defined in

1
docs/src/js/.nojekyll Normal file
View File

@@ -0,0 +1 @@
TypeDoc added this file to prevent GitHub Pages from using Jekyll. You can turn off this behavior by setting the `githubPages` option to false.

View File

@@ -15,9 +15,11 @@ npm install @lancedb/lancedb
This will download the appropriate native library for your platform. We currently
support:
- Linux (x86_64 and aarch64 on glibc and musl)
- Linux (x86_64 and aarch64)
- MacOS (Intel and ARM/M1/M2)
- Windows (x86_64 and aarch64)
- Windows (x86_64 only)
We do not yet support musl-based Linux (such as Alpine Linux) or aarch64 Windows.
## Usage
@@ -34,8 +36,41 @@ const results = await table.vectorSearch([0.1, 0.3]).limit(20).toArray();
console.log(results);
```
The [quickstart](https://lancedb.github.io/lancedb/basic/) contains a more complete example.
The [quickstart](../basic.md) contains a more complete example.
## Development
See [CONTRIBUTING.md](_media/CONTRIBUTING.md) for information on how to contribute to LanceDB.
```sh
npm run build
npm run test
```
### Running lint / format
LanceDb uses [biome](https://biomejs.dev/) for linting and formatting. if you are using VSCode you will need to install the official [Biome](https://marketplace.visualstudio.com/items?itemName=biomejs.biome) extension.
To manually lint your code you can run:
```sh
npm run lint
```
to automatically fix all fixable issues:
```sh
npm run lint-fix
```
If you do not have your workspace root set to the `nodejs` directory, unfortunately the extension will not work. You can still run the linting and formatting commands manually.
### Generating docs
```sh
npm run docs
cd ../docs
# Asssume the virtual environment was created
# python3 -m venv venv
# pip install -r requirements.txt
. ./venv/bin/activate
mkdocs build
```

View File

@@ -1,76 +0,0 @@
# Contributing to LanceDB Typescript
This document outlines the process for contributing to LanceDB Typescript.
For general contribution guidelines, see [CONTRIBUTING.md](../CONTRIBUTING.md).
## Project layout
The Typescript package is a wrapper around the Rust library, `lancedb`. We use
the [napi-rs](https://napi.rs/) library to create the bindings between Rust and
Typescript.
* `src/`: Rust bindings source code
* `lancedb/`: Typescript package source code
* `__test__/`: Unit tests
* `examples/`: An npm package with the examples shown in the documentation
## Development environment
To set up your development environment, you will need to install the following:
1. Node.js 14 or later
2. Rust's package manager, Cargo. Use [rustup](https://rustup.rs/) to install.
3. [protoc](https://grpc.io/docs/protoc-installation/) (Protocol Buffers compiler)
Initial setup:
```shell
npm install
```
### Commit Hooks
It is **highly recommended** to install the [pre-commit](https://pre-commit.com/) hooks to ensure that your
code is formatted correctly and passes basic checks before committing:
```shell
pre-commit install
```
## Development
Most common development commands can be run using the npm scripts.
Build the package
```shell
npm install
npm run build
```
Lint:
```shell
npm run lint
```
Format and fix lints:
```shell
npm run lint-fix
```
Run tests:
```shell
npm test
```
To run a single test:
```shell
# Single file: table.test.ts
npm test -- table.test.ts
# Single test: 'merge insert' in table.test.ts
npm test -- table.test.ts --testNamePattern=merge\ insert
```

View File

@@ -1,67 +0,0 @@
[**@lancedb/lancedb**](../README.md) • **Docs**
***
[@lancedb/lancedb](../globals.md) / BoostQuery
# Class: BoostQuery
Represents a full-text query interface.
This interface defines the structure and behavior for full-text queries,
including methods to retrieve the query type and convert the query to a dictionary format.
## Implements
- [`FullTextQuery`](../interfaces/FullTextQuery.md)
## Constructors
### new BoostQuery()
```ts
new BoostQuery(
positive,
negative,
options?): BoostQuery
```
Creates an instance of BoostQuery.
The boost returns documents that match the positive query,
but penalizes those that match the negative query.
the penalty is controlled by the `negativeBoost` parameter.
#### Parameters
* **positive**: [`FullTextQuery`](../interfaces/FullTextQuery.md)
The positive query that boosts the relevance score.
* **negative**: [`FullTextQuery`](../interfaces/FullTextQuery.md)
The negative query that reduces the relevance score.
* **options?**
Optional parameters for the boost query.
- `negativeBoost`: The boost factor for the negative query (default is 0.0).
* **options.negativeBoost?**: `number`
#### Returns
[`BoostQuery`](BoostQuery.md)
## Methods
### queryType()
```ts
queryType(): FullTextQueryType
```
The type of the full-text query.
#### Returns
[`FullTextQueryType`](../enumerations/FullTextQueryType.md)
#### Implementation of
[`FullTextQuery`](../interfaces/FullTextQuery.md).[`queryType`](../interfaces/FullTextQuery.md#querytype)

View File

@@ -23,13 +23,21 @@ be closed when they are garbage collected.
Any created tables are independent and will continue to work even if
the underlying connection has been closed.
## Constructors
### new Connection()
> **new Connection**(): [`Connection`](Connection.md)
#### Returns
[`Connection`](Connection.md)
## Methods
### close()
```ts
abstract close(): void
```
> `abstract` **close**(): `void`
Close the connection, releasing any underlying resources.
@@ -45,24 +53,21 @@ Any attempt to use the connection after it is closed will result in an error.
### createEmptyTable()
```ts
abstract createEmptyTable(
name,
schema,
options?): Promise<Table>
```
> `abstract` **createEmptyTable**(`name`, `schema`, `options`?): `Promise`&lt;[`Table`](Table.md)&gt;
Creates a new empty Table
#### Parameters
* **name**: `string`
The name of the table.
**name**: `string`
* **schema**: [`SchemaLike`](../type-aliases/SchemaLike.md)
The schema of the table
The name of the table.
* **options?**: `Partial`&lt;[`CreateTableOptions`](../interfaces/CreateTableOptions.md)&gt;
**schema**: `SchemaLike`
The schema of the table
**options?**: `Partial`&lt;[`CreateTableOptions`](../interfaces/CreateTableOptions.md)&gt;
#### Returns
@@ -74,16 +79,15 @@ Creates a new empty Table
#### createTable(options)
```ts
abstract createTable(options): Promise<Table>
```
> `abstract` **createTable**(`options`): `Promise`&lt;[`Table`](Table.md)&gt;
Creates a new Table and initialize it with new data.
##### Parameters
* **options**: `object` & `Partial`&lt;[`CreateTableOptions`](../interfaces/CreateTableOptions.md)&gt;
The options object.
**options**: `object` & `Partial`&lt;[`CreateTableOptions`](../interfaces/CreateTableOptions.md)&gt;
The options object.
##### Returns
@@ -91,25 +95,22 @@ Creates a new Table and initialize it with new data.
#### createTable(name, data, options)
```ts
abstract createTable(
name,
data,
options?): Promise<Table>
```
> `abstract` **createTable**(`name`, `data`, `options`?): `Promise`&lt;[`Table`](Table.md)&gt;
Creates a new Table and initialize it with new data.
##### Parameters
* **name**: `string`
The name of the table.
**name**: `string`
* **data**: [`TableLike`](../type-aliases/TableLike.md) \| `Record`&lt;`string`, `unknown`&gt;[]
Non-empty Array of Records
to be inserted into the table
The name of the table.
* **options?**: `Partial`&lt;[`CreateTableOptions`](../interfaces/CreateTableOptions.md)&gt;
**data**: `TableLike` \| `Record`&lt;`string`, `unknown`&gt;[]
Non-empty Array of Records
to be inserted into the table
**options?**: `Partial`&lt;[`CreateTableOptions`](../interfaces/CreateTableOptions.md)&gt;
##### Returns
@@ -119,9 +120,7 @@ Creates a new Table and initialize it with new data.
### display()
```ts
abstract display(): string
```
> `abstract` **display**(): `string`
Return a brief description of the connection
@@ -131,32 +130,17 @@ Return a brief description of the connection
***
### dropAllTables()
```ts
abstract dropAllTables(): Promise<void>
```
Drop all tables in the database.
#### Returns
`Promise`&lt;`void`&gt;
***
### dropTable()
```ts
abstract dropTable(name): Promise<void>
```
> `abstract` **dropTable**(`name`): `Promise`&lt;`void`&gt;
Drop an existing table.
#### Parameters
* **name**: `string`
The name of the table to drop.
**name**: `string`
The name of the table to drop.
#### Returns
@@ -166,9 +150,7 @@ Drop an existing table.
### isOpen()
```ts
abstract isOpen(): boolean
```
> `abstract` **isOpen**(): `boolean`
Return true if the connection has not been closed
@@ -180,18 +162,17 @@ Return true if the connection has not been closed
### openTable()
```ts
abstract openTable(name, options?): Promise<Table>
```
> `abstract` **openTable**(`name`, `options`?): `Promise`&lt;[`Table`](Table.md)&gt;
Open a table in the database.
#### Parameters
* **name**: `string`
The name of the table
**name**: `string`
* **options?**: `Partial`&lt;[`OpenTableOptions`](../interfaces/OpenTableOptions.md)&gt;
The name of the table
**options?**: `Partial`&lt;`OpenTableOptions`&gt;
#### Returns
@@ -201,9 +182,7 @@ Open a table in the database.
### tableNames()
```ts
abstract tableNames(options?): Promise<string[]>
```
> `abstract` **tableNames**(`options`?): `Promise`&lt;`string`[]&gt;
List all the table names in this database.
@@ -211,9 +190,10 @@ Tables will be returned in lexicographical order.
#### Parameters
* **options?**: `Partial`&lt;[`TableNamesOptions`](../interfaces/TableNamesOptions.md)&gt;
options to control the
paging / start point
**options?**: `Partial`&lt;[`TableNamesOptions`](../interfaces/TableNamesOptions.md)&gt;
options to control the
paging / start point
#### Returns

View File

@@ -8,30 +8,9 @@
## Methods
### bitmap()
```ts
static bitmap(): Index
```
Create a bitmap index.
A `Bitmap` index stores a bitmap for each distinct value in the column for every row.
This index works best for low-cardinality columns, where the number of unique values
is small (i.e., less than a few hundreds).
#### Returns
[`Index`](Index.md)
***
### btree()
```ts
static btree(): Index
```
> `static` **btree**(): [`Index`](Index.md)
Create a btree index
@@ -57,111 +36,9 @@ block size may be added in the future.
***
### fts()
```ts
static fts(options?): Index
```
Create a full text search index
A full text search index is an index on a string column, so that you can conduct full
text searches on the column.
The results of a full text search are ordered by relevance measured by BM25.
You can combine filters with full text search.
#### Parameters
* **options?**: `Partial`&lt;[`FtsOptions`](../interfaces/FtsOptions.md)&gt;
#### Returns
[`Index`](Index.md)
***
### hnswPq()
```ts
static hnswPq(options?): 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.
#### Parameters
* **options?**: `Partial`&lt;[`HnswPqOptions`](../interfaces/HnswPqOptions.md)&gt;
#### Returns
[`Index`](Index.md)
***
### hnswSq()
```ts
static hnswSq(options?): 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.
#### Parameters
* **options?**: `Partial`&lt;[`HnswSqOptions`](../interfaces/HnswSqOptions.md)&gt;
#### Returns
[`Index`](Index.md)
***
### ivfFlat()
```ts
static ivfFlat(options?): Index
```
Create an IvfFlat index
This index groups vectors into partitions of similar vectors. Each partition keeps track of
a centroid which is the average value of all vectors in the group.
During a query the centroids are compared with the query vector to find the closest
partitions. The vectors in these partitions are then searched to find
the closest vectors.
The partitioning process is called IVF and the `num_partitions` parameter controls how
many groups to create.
Note that training an IVF FLAT index on a large dataset is a slow operation and
currently is also a memory intensive operation.
#### Parameters
* **options?**: `Partial`&lt;[`IvfFlatOptions`](../interfaces/IvfFlatOptions.md)&gt;
#### Returns
[`Index`](Index.md)
***
### ivfPq()
```ts
static ivfPq(options?): Index
```
> `static` **ivfPq**(`options`?): [`Index`](Index.md)
Create an IvfPq index
@@ -186,25 +63,29 @@ currently is also a memory intensive operation.
#### Parameters
* **options?**: `Partial`&lt;[`IvfPqOptions`](../interfaces/IvfPqOptions.md)&gt;
**options?**: `Partial`&lt;[`IvfPqOptions`](../interfaces/IvfPqOptions.md)&gt;
#### Returns
[`Index`](Index.md)
***
### fts()
### labelList()
> `static` **fts**(`options`?): [`Index`](Index.md)
```ts
static labelList(): Index
```
Create a full text search index
Create a label list 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.
LabelList index is a scalar index that can be used on `List<T>` columns to
support queries with `array_contains_all` and `array_contains_any`
using an underlying bitmap index.
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`&lt;[`FtsOptions`](../interfaces/FtsOptions.md)&gt;
#### Returns

View File

@@ -12,13 +12,11 @@ Options to control the makeArrowTable call.
### new MakeArrowTableOptions()
```ts
new MakeArrowTableOptions(values?): MakeArrowTableOptions
```
> **new MakeArrowTableOptions**(`values`?): [`MakeArrowTableOptions`](MakeArrowTableOptions.md)
#### Parameters
* **values?**: `Partial`&lt;[`MakeArrowTableOptions`](MakeArrowTableOptions.md)&gt;
**values?**: `Partial`&lt;[`MakeArrowTableOptions`](MakeArrowTableOptions.md)&gt;
#### Returns
@@ -28,9 +26,7 @@ new MakeArrowTableOptions(values?): MakeArrowTableOptions
### dictionaryEncodeStrings
```ts
dictionaryEncodeStrings: boolean = false;
```
> **dictionaryEncodeStrings**: `boolean` = `false`
If true then string columns will be encoded with dictionary encoding
@@ -44,30 +40,22 @@ If `schema` is provided then this property is ignored.
### embeddingFunction?
```ts
optional embeddingFunction: EmbeddingFunctionConfig;
```
> `optional` **embeddingFunction**: [`EmbeddingFunctionConfig`](../namespaces/embedding/interfaces/EmbeddingFunctionConfig.md)
***
### embeddings?
```ts
optional embeddings: EmbeddingFunction<unknown, FunctionOptions>;
```
> `optional` **embeddings**: [`EmbeddingFunction`](../namespaces/embedding/classes/EmbeddingFunction.md)&lt;`unknown`, `FunctionOptions`&gt;
***
### schema?
```ts
optional schema: SchemaLike;
```
> `optional` **schema**: `SchemaLike`
***
### vectorColumns
```ts
vectorColumns: Record<string, VectorColumnOptions>;
```
> **vectorColumns**: `Record`&lt;`string`, [`VectorColumnOptions`](VectorColumnOptions.md)&gt;

View File

@@ -1,70 +0,0 @@
[**@lancedb/lancedb**](../README.md) • **Docs**
***
[@lancedb/lancedb](../globals.md) / MatchQuery
# Class: MatchQuery
Represents a full-text query interface.
This interface defines the structure and behavior for full-text queries,
including methods to retrieve the query type and convert the query to a dictionary format.
## Implements
- [`FullTextQuery`](../interfaces/FullTextQuery.md)
## Constructors
### new MatchQuery()
```ts
new MatchQuery(
query,
column,
options?): MatchQuery
```
Creates an instance of MatchQuery.
#### Parameters
* **query**: `string`
The text query to search for.
* **column**: `string`
The name of the column to search within.
* **options?**
Optional parameters for the match query.
- `boost`: The boost factor for the query (default is 1.0).
- `fuzziness`: The fuzziness level for the query (default is 0).
- `maxExpansions`: The maximum number of terms to consider for fuzzy matching (default is 50).
* **options.boost?**: `number`
* **options.fuzziness?**: `number`
* **options.maxExpansions?**: `number`
#### Returns
[`MatchQuery`](MatchQuery.md)
## Methods
### queryType()
```ts
queryType(): FullTextQueryType
```
The type of the full-text query.
#### Returns
[`FullTextQueryType`](../enumerations/FullTextQueryType.md)
#### Implementation of
[`FullTextQuery`](../interfaces/FullTextQuery.md).[`queryType`](../interfaces/FullTextQuery.md#querytype)

View File

@@ -1,126 +0,0 @@
[**@lancedb/lancedb**](../README.md) • **Docs**
***
[@lancedb/lancedb](../globals.md) / MergeInsertBuilder
# Class: MergeInsertBuilder
A builder used to create and run a merge insert operation
## Constructors
### new MergeInsertBuilder()
```ts
new MergeInsertBuilder(native, schema): MergeInsertBuilder
```
Construct a MergeInsertBuilder. __Internal use only.__
#### Parameters
* **native**: `NativeMergeInsertBuilder`
* **schema**: `Schema`&lt;`any`&gt; \| `Promise`&lt;`Schema`&lt;`any`&gt;&gt;
#### Returns
[`MergeInsertBuilder`](MergeInsertBuilder.md)
## Methods
### execute()
```ts
execute(data): Promise<MergeStats>
```
Executes the merge insert operation
#### Parameters
* **data**: [`Data`](../type-aliases/Data.md)
#### Returns
`Promise`&lt;[`MergeStats`](../interfaces/MergeStats.md)&gt;
Statistics about the merge operation: counts of inserted, updated, and deleted rows
***
### whenMatchedUpdateAll()
```ts
whenMatchedUpdateAll(options?): MergeInsertBuilder
```
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.
An optional condition may be specified. If it is, then only
matched rows that satisfy the condtion will be updated. Any
rows that do not satisfy the condition will be left as they
are. Failing to satisfy the condition does not cause a
"matched row" to become a "not matched" row.
The condition should be an SQL string. Use the prefix
target. to refer to rows in the target table (old data)
and the prefix source. to refer to rows in the source
table (new data).
For example, "target.last_update < source.last_update"
#### Parameters
* **options?**
* **options.where?**: `string`
#### Returns
[`MergeInsertBuilder`](MergeInsertBuilder.md)
***
### whenNotMatchedBySourceDelete()
```ts
whenNotMatchedBySourceDelete(options?): MergeInsertBuilder
```
Rows that exist only in the target table (old data) will be
deleted. An optional condition can be provided to limit what
data is deleted.
#### Parameters
* **options?**
* **options.where?**: `string`
An optional condition to limit what data is deleted
#### Returns
[`MergeInsertBuilder`](MergeInsertBuilder.md)
***
### whenNotMatchedInsertAll()
```ts
whenNotMatchedInsertAll(): MergeInsertBuilder
```
Rows that exist only in the source table (new data) should
be inserted into the target table.
#### Returns
[`MergeInsertBuilder`](MergeInsertBuilder.md)

View File

@@ -1,64 +0,0 @@
[**@lancedb/lancedb**](../README.md) • **Docs**
***
[@lancedb/lancedb](../globals.md) / MultiMatchQuery
# Class: MultiMatchQuery
Represents a full-text query interface.
This interface defines the structure and behavior for full-text queries,
including methods to retrieve the query type and convert the query to a dictionary format.
## Implements
- [`FullTextQuery`](../interfaces/FullTextQuery.md)
## Constructors
### new MultiMatchQuery()
```ts
new MultiMatchQuery(
query,
columns,
options?): MultiMatchQuery
```
Creates an instance of MultiMatchQuery.
#### Parameters
* **query**: `string`
The text query to search for across multiple columns.
* **columns**: `string`[]
An array of column names to search within.
* **options?**
Optional parameters for the multi-match query.
- `boosts`: An array of boost factors for each column (default is 1.0 for all).
* **options.boosts?**: `number`[]
#### Returns
[`MultiMatchQuery`](MultiMatchQuery.md)
## Methods
### queryType()
```ts
queryType(): FullTextQueryType
```
The type of the full-text query.
#### Returns
[`FullTextQueryType`](../enumerations/FullTextQueryType.md)
#### Implementation of
[`FullTextQuery`](../interfaces/FullTextQuery.md).[`queryType`](../interfaces/FullTextQuery.md#querytype)

View File

@@ -1,55 +0,0 @@
[**@lancedb/lancedb**](../README.md) • **Docs**
***
[@lancedb/lancedb](../globals.md) / PhraseQuery
# Class: PhraseQuery
Represents a full-text query interface.
This interface defines the structure and behavior for full-text queries,
including methods to retrieve the query type and convert the query to a dictionary format.
## Implements
- [`FullTextQuery`](../interfaces/FullTextQuery.md)
## Constructors
### new PhraseQuery()
```ts
new PhraseQuery(query, column): PhraseQuery
```
Creates an instance of `PhraseQuery`.
#### Parameters
* **query**: `string`
The phrase to search for in the specified column.
* **column**: `string`
The name of the column to search within.
#### Returns
[`PhraseQuery`](PhraseQuery.md)
## Methods
### queryType()
```ts
queryType(): FullTextQueryType
```
The type of the full-text query.
#### Returns
[`FullTextQueryType`](../enumerations/FullTextQueryType.md)
#### Implementation of
[`FullTextQuery`](../interfaces/FullTextQuery.md).[`queryType`](../interfaces/FullTextQuery.md#querytype)

View File

@@ -8,21 +8,33 @@
A builder for LanceDB queries.
## See
[Table#query](Table.md#query), [Table#search](Table.md#search)
## Extends
- [`QueryBase`](QueryBase.md)&lt;`NativeQuery`&gt;
## Constructors
### new Query()
> **new Query**(`tbl`): [`Query`](Query.md)
#### Parameters
**tbl**: `Table`
#### Returns
[`Query`](Query.md)
#### Overrides
[`QueryBase`](QueryBase.md).[`constructor`](QueryBase.md#constructors)
## Properties
### inner
```ts
protected inner: Query | Promise<Query>;
```
> `protected` **inner**: `Query` \| `Promise`&lt;`Query`&gt;
#### Inherited from
@@ -30,64 +42,47 @@ protected inner: Query | Promise<Query>;
## Methods
### analyzePlan()
### \[asyncIterator\]()
```ts
analyzePlan(): Promise<string>
```
Executes the query and returns the physical query plan annotated with runtime metrics.
This is useful for debugging and performance analysis, as it shows how the query was executed
and includes metrics such as elapsed time, rows processed, and I/O statistics.
> **\[asyncIterator\]**(): `AsyncIterator`&lt;`RecordBatch`&lt;`any`&gt;, `any`, `undefined`&gt;
#### Returns
`Promise`&lt;`string`&gt;
A query execution plan with runtime metrics for each step.
#### Example
```ts
import * as lancedb from "@lancedb/lancedb"
const db = await lancedb.connect("./.lancedb");
const table = await db.createTable("my_table", [
{ vector: [1.1, 0.9], id: "1" },
]);
const plan = await table.query().nearestTo([0.5, 0.2]).analyzePlan();
Example output (with runtime metrics inlined):
AnalyzeExec verbose=true, metrics=[]
ProjectionExec: expr=[id@3 as id, vector@0 as vector, _distance@2 as _distance], metrics=[output_rows=1, elapsed_compute=3.292µs]
Take: columns="vector, _rowid, _distance, (id)", metrics=[output_rows=1, elapsed_compute=66.001µs, batches_processed=1, bytes_read=8, iops=1, requests=1]
CoalesceBatchesExec: target_batch_size=1024, metrics=[output_rows=1, elapsed_compute=3.333µs]
GlobalLimitExec: skip=0, fetch=10, metrics=[output_rows=1, elapsed_compute=167ns]
FilterExec: _distance@2 IS NOT NULL, metrics=[output_rows=1, elapsed_compute=8.542µs]
SortExec: TopK(fetch=10), expr=[_distance@2 ASC NULLS LAST], metrics=[output_rows=1, elapsed_compute=63.25µs, row_replacements=1]
KNNVectorDistance: metric=l2, metrics=[output_rows=1, elapsed_compute=114.333µs, output_batches=1]
LanceScan: uri=/path/to/data, projection=[vector], row_id=true, row_addr=false, ordered=false, metrics=[output_rows=1, elapsed_compute=103.626µs, bytes_read=549, iops=2, requests=2]
```
`AsyncIterator`&lt;`RecordBatch`&lt;`any`&gt;, `any`, `undefined`&gt;
#### Inherited from
[`QueryBase`](QueryBase.md).[`analyzePlan`](QueryBase.md#analyzeplan)
[`QueryBase`](QueryBase.md).[`[asyncIterator]`](QueryBase.md#%5Basynciterator%5D)
***
### doCall()
> `protected` **doCall**(`fn`): `void`
#### Parameters
**fn**
#### Returns
`void`
#### Inherited from
[`QueryBase`](QueryBase.md).[`doCall`](QueryBase.md#docall)
***
### execute()
```ts
protected execute(options?): RecordBatchIterator
```
> `protected` **execute**(`options`?): [`RecordBatchIterator`](RecordBatchIterator.md)
Execute the query and return the results as an
#### Parameters
* **options?**: `Partial`&lt;[`QueryExecutionOptions`](../interfaces/QueryExecutionOptions.md)&gt;
**options?**: `Partial`&lt;`QueryExecutionOptions`&gt;
#### Returns
@@ -113,16 +108,15 @@ single query)
### explainPlan()
```ts
explainPlan(verbose): Promise<string>
```
> **explainPlan**(`verbose`): `Promise`&lt;`string`&gt;
Generates an explanation of the query execution plan.
#### Parameters
* **verbose**: `boolean` = `false`
If true, provides a more detailed explanation. Defaults to false.
**verbose**: `boolean` = `false`
If true, provides a more detailed explanation. Defaults to false.
#### Returns
@@ -147,44 +141,21 @@ const plan = await table.query().nearestTo([0.5, 0.2]).explainPlan();
***
### fastSearch()
```ts
fastSearch(): this
```
Skip searching un-indexed data. This can make search faster, but will miss
any data that is not yet indexed.
Use [Table#optimize](Table.md#optimize) to index all un-indexed data.
#### Returns
`this`
#### Inherited from
[`QueryBase`](QueryBase.md).[`fastSearch`](QueryBase.md#fastsearch)
***
### ~~filter()~~
```ts
filter(predicate): this
```
> **filter**(`predicate`): `this`
A filter statement to be applied to this query.
#### Parameters
* **predicate**: `string`
**predicate**: `string`
#### Returns
`this`
#### See
#### Alias
where
@@ -198,33 +169,9 @@ Use `where` instead
***
### fullTextSearch()
```ts
fullTextSearch(query, options?): this
```
#### Parameters
* **query**: `string` \| [`FullTextQuery`](../interfaces/FullTextQuery.md)
* **options?**: `Partial`&lt;[`FullTextSearchOptions`](../interfaces/FullTextSearchOptions.md)&gt;
#### Returns
`this`
#### Inherited from
[`QueryBase`](QueryBase.md).[`fullTextSearch`](QueryBase.md#fulltextsearch)
***
### limit()
```ts
limit(limit): this
```
> **limit**(`limit`): `this`
Set the maximum number of results to return.
@@ -233,7 +180,7 @@ called then every valid row from the table will be returned.
#### Parameters
* **limit**: `number`
**limit**: `number`
#### Returns
@@ -245,11 +192,27 @@ called then every valid row from the table will be returned.
***
### nativeExecute()
> `protected` **nativeExecute**(`options`?): `Promise`&lt;`RecordBatchIterator`&gt;
#### Parameters
**options?**: `Partial`&lt;`QueryExecutionOptions`&gt;
#### Returns
`Promise`&lt;`RecordBatchIterator`&gt;
#### Inherited from
[`QueryBase`](QueryBase.md).[`nativeExecute`](QueryBase.md#nativeexecute)
***
### nearestTo()
```ts
nearestTo(vector): VectorQuery
```
> **nearestTo**(`vector`): [`VectorQuery`](VectorQuery.md)
Find the nearest vectors to the given query vector.
@@ -269,7 +232,7 @@ If there is more than one vector column you must use
#### Parameters
* **vector**: [`IntoVector`](../type-aliases/IntoVector.md)
**vector**: `IntoVector`
#### Returns
@@ -301,49 +264,9 @@ a default `limit` of 10 will be used.
***
### nearestToText()
```ts
nearestToText(query, columns?): Query
```
#### Parameters
* **query**: `string` \| [`FullTextQuery`](../interfaces/FullTextQuery.md)
* **columns?**: `string`[]
#### Returns
[`Query`](Query.md)
***
### offset()
```ts
offset(offset): this
```
#### Parameters
* **offset**: `number`
#### Returns
`this`
#### Inherited from
[`QueryBase`](QueryBase.md).[`offset`](QueryBase.md#offset)
***
### select()
```ts
select(columns): this
```
> **select**(`columns`): `this`
Return only the specified columns.
@@ -367,7 +290,7 @@ input to this method would be:
#### Parameters
* **columns**: `string` \| `string`[] \| `Record`&lt;`string`, `string`&gt; \| `Map`&lt;`string`, `string`&gt;
**columns**: `string` \| `string`[] \| `Record`&lt;`string`, `string`&gt; \| `Map`&lt;`string`, `string`&gt;
#### Returns
@@ -394,15 +317,13 @@ object insertion order is easy to get wrong and `Map` is more foolproof.
### toArray()
```ts
toArray(options?): Promise<any[]>
```
> **toArray**(`options`?): `Promise`&lt;`any`[]&gt;
Collect the results as an array of objects.
#### Parameters
* **options?**: `Partial`&lt;[`QueryExecutionOptions`](../interfaces/QueryExecutionOptions.md)&gt;
**options?**: `Partial`&lt;`QueryExecutionOptions`&gt;
#### Returns
@@ -416,15 +337,13 @@ Collect the results as an array of objects.
### toArrow()
```ts
toArrow(options?): Promise<Table<any>>
```
> **toArrow**(`options`?): `Promise`&lt;`Table`&lt;`any`&gt;&gt;
Collect the results as an Arrow
#### Parameters
* **options?**: `Partial`&lt;[`QueryExecutionOptions`](../interfaces/QueryExecutionOptions.md)&gt;
**options?**: `Partial`&lt;`QueryExecutionOptions`&gt;
#### Returns
@@ -442,9 +361,7 @@ ArrowTable.
### where()
```ts
where(predicate): this
```
> **where**(`predicate`): `this`
A filter statement to be applied to this query.
@@ -452,7 +369,7 @@ The filter should be supplied as an SQL query string. For example:
#### Parameters
* **predicate**: `string`
**predicate**: `string`
#### Returns
@@ -472,25 +389,3 @@ on the filter column(s).
#### Inherited from
[`QueryBase`](QueryBase.md).[`where`](QueryBase.md#where)
***
### withRowId()
```ts
withRowId(): this
```
Whether to return the row id in the results.
This column can be used to match results between different queries. For
example, to match results from a full text search and a vector search in
order to perform hybrid search.
#### Returns
`this`
#### Inherited from
[`QueryBase`](QueryBase.md).[`withRowId`](QueryBase.md#withrowid)

View File

@@ -8,11 +8,6 @@
Common methods supported by all query types
## See
- [Query](Query.md)
- [VectorQuery](VectorQuery.md)
## Extended by
- [`Query`](Query.md)
@@ -26,70 +21,65 @@ Common methods supported by all query types
- `AsyncIterable`&lt;`RecordBatch`&gt;
## Constructors
### new QueryBase()
> `protected` **new QueryBase**&lt;`NativeQueryType`&gt;(`inner`): [`QueryBase`](QueryBase.md)&lt;`NativeQueryType`&gt;
#### Parameters
**inner**: `NativeQueryType` \| `Promise`&lt;`NativeQueryType`&gt;
#### Returns
[`QueryBase`](QueryBase.md)&lt;`NativeQueryType`&gt;
## Properties
### inner
```ts
protected inner: NativeQueryType | Promise<NativeQueryType>;
```
> `protected` **inner**: `NativeQueryType` \| `Promise`&lt;`NativeQueryType`&gt;
## Methods
### analyzePlan()
### \[asyncIterator\]()
```ts
analyzePlan(): Promise<string>
```
Executes the query and returns the physical query plan annotated with runtime metrics.
This is useful for debugging and performance analysis, as it shows how the query was executed
and includes metrics such as elapsed time, rows processed, and I/O statistics.
> **\[asyncIterator\]**(): `AsyncIterator`&lt;`RecordBatch`&lt;`any`&gt;, `any`, `undefined`&gt;
#### Returns
`Promise`&lt;`string`&gt;
`AsyncIterator`&lt;`RecordBatch`&lt;`any`&gt;, `any`, `undefined`&gt;
A query execution plan with runtime metrics for each step.
#### Implementation of
#### Example
`AsyncIterable.[asyncIterator]`
```ts
import * as lancedb from "@lancedb/lancedb"
***
const db = await lancedb.connect("./.lancedb");
const table = await db.createTable("my_table", [
{ vector: [1.1, 0.9], id: "1" },
]);
### doCall()
const plan = await table.query().nearestTo([0.5, 0.2]).analyzePlan();
> `protected` **doCall**(`fn`): `void`
Example output (with runtime metrics inlined):
AnalyzeExec verbose=true, metrics=[]
ProjectionExec: expr=[id@3 as id, vector@0 as vector, _distance@2 as _distance], metrics=[output_rows=1, elapsed_compute=3.292µs]
Take: columns="vector, _rowid, _distance, (id)", metrics=[output_rows=1, elapsed_compute=66.001µs, batches_processed=1, bytes_read=8, iops=1, requests=1]
CoalesceBatchesExec: target_batch_size=1024, metrics=[output_rows=1, elapsed_compute=3.333µs]
GlobalLimitExec: skip=0, fetch=10, metrics=[output_rows=1, elapsed_compute=167ns]
FilterExec: _distance@2 IS NOT NULL, metrics=[output_rows=1, elapsed_compute=8.542µs]
SortExec: TopK(fetch=10), expr=[_distance@2 ASC NULLS LAST], metrics=[output_rows=1, elapsed_compute=63.25µs, row_replacements=1]
KNNVectorDistance: metric=l2, metrics=[output_rows=1, elapsed_compute=114.333µs, output_batches=1]
LanceScan: uri=/path/to/data, projection=[vector], row_id=true, row_addr=false, ordered=false, metrics=[output_rows=1, elapsed_compute=103.626µs, bytes_read=549, iops=2, requests=2]
```
#### Parameters
**fn**
#### Returns
`void`
***
### execute()
```ts
protected execute(options?): RecordBatchIterator
```
> `protected` **execute**(`options`?): [`RecordBatchIterator`](RecordBatchIterator.md)
Execute the query and return the results as an
#### Parameters
* **options?**: `Partial`&lt;[`QueryExecutionOptions`](../interfaces/QueryExecutionOptions.md)&gt;
**options?**: `Partial`&lt;`QueryExecutionOptions`&gt;
#### Returns
@@ -111,16 +101,15 @@ single query)
### explainPlan()
```ts
explainPlan(verbose): Promise<string>
```
> **explainPlan**(`verbose`): `Promise`&lt;`string`&gt;
Generates an explanation of the query execution plan.
#### Parameters
* **verbose**: `boolean` = `false`
If true, provides a more detailed explanation. Defaults to false.
**verbose**: `boolean` = `false`
If true, provides a more detailed explanation. Defaults to false.
#### Returns
@@ -141,40 +130,21 @@ const plan = await table.query().nearestTo([0.5, 0.2]).explainPlan();
***
### fastSearch()
```ts
fastSearch(): this
```
Skip searching un-indexed data. This can make search faster, but will miss
any data that is not yet indexed.
Use [Table#optimize](Table.md#optimize) to index all un-indexed data.
#### Returns
`this`
***
### ~~filter()~~
```ts
filter(predicate): this
```
> **filter**(`predicate`): `this`
A filter statement to be applied to this query.
#### Parameters
* **predicate**: `string`
**predicate**: `string`
#### Returns
`this`
#### See
#### Alias
where
@@ -184,29 +154,9 @@ Use `where` instead
***
### fullTextSearch()
```ts
fullTextSearch(query, options?): this
```
#### Parameters
* **query**: `string` \| [`FullTextQuery`](../interfaces/FullTextQuery.md)
* **options?**: `Partial`&lt;[`FullTextSearchOptions`](../interfaces/FullTextSearchOptions.md)&gt;
#### Returns
`this`
***
### limit()
```ts
limit(limit): this
```
> **limit**(`limit`): `this`
Set the maximum number of results to return.
@@ -215,7 +165,7 @@ called then every valid row from the table will be returned.
#### Parameters
* **limit**: `number`
**limit**: `number`
#### Returns
@@ -223,27 +173,23 @@ called then every valid row from the table will be returned.
***
### offset()
### nativeExecute()
```ts
offset(offset): this
```
> `protected` **nativeExecute**(`options`?): `Promise`&lt;`RecordBatchIterator`&gt;
#### Parameters
* **offset**: `number`
**options?**: `Partial`&lt;`QueryExecutionOptions`&gt;
#### Returns
`this`
`Promise`&lt;`RecordBatchIterator`&gt;
***
### select()
```ts
select(columns): this
```
> **select**(`columns`): `this`
Return only the specified columns.
@@ -267,7 +213,7 @@ input to this method would be:
#### Parameters
* **columns**: `string` \| `string`[] \| `Record`&lt;`string`, `string`&gt; \| `Map`&lt;`string`, `string`&gt;
**columns**: `string` \| `string`[] \| `Record`&lt;`string`, `string`&gt; \| `Map`&lt;`string`, `string`&gt;
#### Returns
@@ -290,15 +236,13 @@ object insertion order is easy to get wrong and `Map` is more foolproof.
### toArray()
```ts
toArray(options?): Promise<any[]>
```
> **toArray**(`options`?): `Promise`&lt;`any`[]&gt;
Collect the results as an array of objects.
#### Parameters
* **options?**: `Partial`&lt;[`QueryExecutionOptions`](../interfaces/QueryExecutionOptions.md)&gt;
**options?**: `Partial`&lt;`QueryExecutionOptions`&gt;
#### Returns
@@ -308,15 +252,13 @@ Collect the results as an array of objects.
### toArrow()
```ts
toArrow(options?): Promise<Table<any>>
```
> **toArrow**(`options`?): `Promise`&lt;`Table`&lt;`any`&gt;&gt;
Collect the results as an Arrow
#### Parameters
* **options?**: `Partial`&lt;[`QueryExecutionOptions`](../interfaces/QueryExecutionOptions.md)&gt;
**options?**: `Partial`&lt;`QueryExecutionOptions`&gt;
#### Returns
@@ -330,9 +272,7 @@ ArrowTable.
### where()
```ts
where(predicate): this
```
> **where**(`predicate`): `this`
A filter statement to be applied to this query.
@@ -340,7 +280,7 @@ The filter should be supplied as an SQL query string. For example:
#### Parameters
* **predicate**: `string`
**predicate**: `string`
#### Returns
@@ -356,21 +296,3 @@ x > 5 OR y = 'test'
Filtering performance can often be improved by creating a scalar index
on the filter column(s).
```
***
### withRowId()
```ts
withRowId(): this
```
Whether to return the row id in the results.
This column can be used to match results between different queries. For
example, to match results from a full text search and a vector search in
order to perform hybrid search.
#### Returns
`this`

View File

@@ -14,13 +14,11 @@
### new RecordBatchIterator()
```ts
new RecordBatchIterator(promise?): RecordBatchIterator
```
> **new RecordBatchIterator**(`promise`?): [`RecordBatchIterator`](RecordBatchIterator.md)
#### Parameters
* **promise?**: `Promise`&lt;`RecordBatchIterator`&gt;
**promise?**: `Promise`&lt;`RecordBatchIterator`&gt;
#### Returns
@@ -30,9 +28,7 @@ new RecordBatchIterator(promise?): RecordBatchIterator
### next()
```ts
next(): Promise<IteratorResult<RecordBatch<any>, any>>
```
> **next**(): `Promise`&lt;`IteratorResult`&lt;`RecordBatch`&lt;`any`&gt;, `any`&gt;&gt;
#### Returns

View File

@@ -14,20 +14,24 @@ will be freed when the Table is garbage collected. To eagerly free the cache yo
can call the `close` method. Once the Table is closed, it cannot be used for any
further operations.
Tables are created using the methods [Connection#createTable](Connection.md#createtable)
and [Connection#createEmptyTable](Connection.md#createemptytable). Existing tables are opened
using [Connection#openTable](Connection.md#opentable).
Closing a table is optional. It not closed, it will be closed when it is garbage
collected.
## Constructors
### new Table()
> **new Table**(): [`Table`](Table.md)
#### Returns
[`Table`](Table.md)
## Accessors
### name
```ts
get abstract name(): string
```
> `get` `abstract` **name**(): `string`
Returns the name of the table
@@ -39,18 +43,17 @@ Returns the name of the table
### add()
```ts
abstract add(data, options?): Promise<void>
```
> `abstract` **add**(`data`, `options`?): `Promise`&lt;`void`&gt;
Insert records into this Table.
#### Parameters
* **data**: [`Data`](../type-aliases/Data.md)
Records to be inserted into the Table
**data**: [`Data`](../type-aliases/Data.md)
* **options?**: `Partial`&lt;[`AddDataOptions`](../interfaces/AddDataOptions.md)&gt;
Records to be inserted into the Table
**options?**: `Partial`&lt;[`AddDataOptions`](../interfaces/AddDataOptions.md)&gt;
#### Returns
@@ -60,19 +63,18 @@ Insert records into this Table.
### addColumns()
```ts
abstract addColumns(newColumnTransforms): Promise<void>
```
> `abstract` **addColumns**(`newColumnTransforms`): `Promise`&lt;`void`&gt;
Add new columns with defined values.
#### Parameters
* **newColumnTransforms**: [`AddColumnsSql`](../interfaces/AddColumnsSql.md)[]
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.
**newColumnTransforms**: [`AddColumnsSql`](../interfaces/AddColumnsSql.md)[]
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
@@ -82,17 +84,16 @@ Add new columns with defined values.
### alterColumns()
```ts
abstract alterColumns(columnAlterations): Promise<void>
```
> `abstract` **alterColumns**(`columnAlterations`): `Promise`&lt;`void`&gt;
Alter the name or nullability of columns.
#### Parameters
* **columnAlterations**: [`ColumnAlteration`](../interfaces/ColumnAlteration.md)[]
One or more alterations to
apply to columns.
**columnAlterations**: [`ColumnAlteration`](../interfaces/ColumnAlteration.md)[]
One or more alterations to
apply to columns.
#### Returns
@@ -102,9 +103,7 @@ Alter the name or nullability of columns.
### checkout()
```ts
abstract checkout(version): Promise<void>
```
> `abstract` **checkout**(`version`): `Promise`&lt;`void`&gt;
Checks out a specific version of the table _This is an in-place operation._
@@ -117,8 +116,9 @@ wish to return to standard mode, call `checkoutLatest`.
#### Parameters
* **version**: `string` \| `number`
The version to checkout, could be version number or tag
**version**: `number`
The version to checkout
#### Returns
@@ -144,9 +144,7 @@ console.log(await table.version()); // 2
### checkoutLatest()
```ts
abstract checkoutLatest(): Promise<void>
```
> `abstract` **checkoutLatest**(): `Promise`&lt;`void`&gt;
Checkout the latest version of the table. _This is an in-place operation._
@@ -161,9 +159,7 @@ version of the table.
### close()
```ts
abstract close(): void
```
> `abstract` **close**(): `void`
Close the table, releasing any underlying resources.
@@ -179,15 +175,13 @@ Any attempt to use the table after it is closed will result in an error.
### countRows()
```ts
abstract countRows(filter?): Promise<number>
```
> `abstract` **countRows**(`filter`?): `Promise`&lt;`number`&gt;
Count the total number of rows in the dataset.
#### Parameters
* **filter?**: `string`
**filter?**: `string`
#### Returns
@@ -197,9 +191,7 @@ Count the total number of rows in the dataset.
### createIndex()
```ts
abstract createIndex(column, options?): Promise<void>
```
> `abstract` **createIndex**(`column`, `options`?): `Promise`&lt;`void`&gt;
Create an index to speed up queries.
@@ -208,19 +200,21 @@ Indices on vector columns will speed up vector searches.
Indices on scalar columns will speed up filtering (in both
vector and non-vector searches)
We currently don't support custom named indexes.
The index name will always be `${column}_idx`.
#### Parameters
* **column**: `string`
**column**: `string`
* **options?**: `Partial`&lt;[`IndexOptions`](../interfaces/IndexOptions.md)&gt;
**options?**: `Partial`&lt;[`IndexOptions`](../interfaces/IndexOptions.md)&gt;
#### Returns
`Promise`&lt;`void`&gt;
#### Note
We currently don't support custom named indexes,
The index name will always be `${column}_idx`
#### Examples
```ts
@@ -251,15 +245,13 @@ await table.createIndex("my_float_col");
### delete()
```ts
abstract delete(predicate): Promise<void>
```
> `abstract` **delete**(`predicate`): `Promise`&lt;`void`&gt;
Delete the rows that satisfy the predicate.
#### Parameters
* **predicate**: `string`
**predicate**: `string`
#### Returns
@@ -269,9 +261,7 @@ Delete the rows that satisfy the predicate.
### display()
```ts
abstract display(): string
```
> `abstract` **display**(): `string`
Return a brief description of the table
@@ -283,9 +273,7 @@ Return a brief description of the table
### dropColumns()
```ts
abstract dropColumns(columnNames): Promise<void>
```
> `abstract` **dropColumns**(`columnNames`): `Promise`&lt;`void`&gt;
Drop one or more columns from the dataset
@@ -296,32 +284,11 @@ then call ``cleanup_files`` to remove the old files.
#### Parameters
* **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").
**columnNames**: `string`[]
#### Returns
`Promise`&lt;`void`&gt;
***
### dropIndex()
```ts
abstract dropIndex(name): Promise<void>
```
Drop an index from the table.
#### Parameters
* **name**: `string`
The name of the index.
This does not delete the index from disk, it just removes it from the table.
To delete the index, run [Table#optimize](Table.md#optimize) after dropping the index.
Use [Table.listIndices](Table.md#listindices) to find the names of the indices.
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
@@ -331,16 +298,15 @@ Drop an index from the table.
### indexStats()
```ts
abstract indexStats(name): Promise<undefined | IndexStatistics>
```
> `abstract` **indexStats**(`name`): `Promise`&lt;`undefined` \| [`IndexStatistics`](../interfaces/IndexStatistics.md)&gt;
List all the stats of a specified index
#### Parameters
* **name**: `string`
The name of the index.
**name**: `string`
The name of the index.
#### Returns
@@ -348,15 +314,11 @@ List all the stats of a specified index
The stats of the index. If the index does not exist, it will return undefined
Use [Table.listIndices](Table.md#listindices) to find the names of the indices.
***
### isOpen()
```ts
abstract isOpen(): boolean
```
> `abstract` **isOpen**(): `boolean`
Return true if the table has not been closed
@@ -368,9 +330,7 @@ Return true if the table has not been closed
### listIndices()
```ts
abstract listIndices(): Promise<IndexConfig[]>
```
> `abstract` **listIndices**(): `Promise`&lt;[`IndexConfig`](../interfaces/IndexConfig.md)[]&gt;
List all indices that have been created with [Table.createIndex](Table.md#createindex)
@@ -380,41 +340,23 @@ List all indices that have been created with [Table.createIndex](Table.md#create
***
### listVersions()
```ts
abstract listVersions(): Promise<Version[]>
```
List all the versions of the table
#### Returns
`Promise`&lt;[`Version`](../interfaces/Version.md)[]&gt;
***
### mergeInsert()
```ts
abstract mergeInsert(on): MergeInsertBuilder
```
> `abstract` **mergeInsert**(`on`): `MergeInsertBuilder`
#### Parameters
* **on**: `string` \| `string`[]
**on**: `string` \| `string`[]
#### Returns
[`MergeInsertBuilder`](MergeInsertBuilder.md)
`MergeInsertBuilder`
***
### optimize()
```ts
abstract optimize(options?): Promise<OptimizeStats>
```
> `abstract` **optimize**(`options`?): `Promise`&lt;`OptimizeStats`&gt;
Optimize the on-disk data and indices for better performance.
@@ -446,41 +388,17 @@ Modeled after ``VACUUM`` in PostgreSQL.
#### Parameters
* **options?**: `Partial`&lt;[`OptimizeOptions`](../interfaces/OptimizeOptions.md)&gt;
**options?**: `Partial`&lt;`OptimizeOptions`&gt;
#### Returns
`Promise`&lt;[`OptimizeStats`](../interfaces/OptimizeStats.md)&gt;
***
### prewarmIndex()
```ts
abstract prewarmIndex(name): Promise<void>
```
Prewarm an index in the table.
#### Parameters
* **name**: `string`
The name of the index.
This will load the index into memory. This may reduce the cold-start time for
future queries. If the index does not fit in the cache then this call may be
wasteful.
#### Returns
`Promise`&lt;`void`&gt;
`Promise`&lt;`OptimizeStats`&gt;
***
### query()
```ts
abstract query(): Query
```
> `abstract` **query**(): [`Query`](Query.md)
Create a [Query](Query.md) Builder.
@@ -548,9 +466,7 @@ for await (const batch of table.query()) {
### restore()
```ts
abstract restore(): Promise<void>
```
> `abstract` **restore**(): `Promise`&lt;`void`&gt;
Restore the table to the currently checked out version
@@ -571,9 +487,7 @@ out state and the read_consistency_interval, if any, will apply.
### schema()
```ts
abstract schema(): Promise<Schema<any>>
```
> `abstract` **schema**(): `Promise`&lt;`Schema`&lt;`any`&gt;&gt;
Get the schema of the table.
@@ -585,85 +499,61 @@ Get the schema of the table.
### search()
```ts
abstract search(
query,
queryType?,
ftsColumns?): Query | VectorQuery
```
#### search(query)
> `abstract` **search**(`query`, `queryType`, `ftsColumns`): [`VectorQuery`](VectorQuery.md)
Create a search query to find the nearest neighbors
of the given query
of the given query vector, or the documents
with the highest relevance to the query string.
#### Parameters
##### Parameters
* **query**: `string` \| [`IntoVector`](../type-aliases/IntoVector.md) \| [`FullTextQuery`](../interfaces/FullTextQuery.md)
the query, a vector or string
**query**: `string`
* **queryType?**: `string`
the type of the query, "vector", "fts", or "auto"
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".
* **ftsColumns?**: `string` \| `string`[]
the columns to search in for full text search
for now, only one column can be searched at a time.
when "auto" is used, if the query is a string and an embedding function is defined, it will be treated as a vector query
if the query is a string and no embedding function is defined, it will be treated as a full text search query
**queryType**: `string` = `"auto"` \| `"fts"`
#### Returns
the type of query to run. If "auto", the query type will be determined based on the query.
[`Query`](Query.md) \| [`VectorQuery`](VectorQuery.md)
• **ftsColumns**: `string[] | str` = undefined
***
the columns to search in. If not provided, all indexed columns will be searched.
### stats()
For now, this can support to search only one column.
```ts
abstract stats(): Promise<TableStatistics>
```
##### Returns
Returns table and fragment statistics
[`VectorQuery`](VectorQuery.md)
#### Returns
##### Note
`Promise`&lt;[`TableStatistics`](../interfaces/TableStatistics.md)&gt;
If no embedding functions are defined in the table, this will error when collecting the results.
The table and fragment statistics
#### search(query)
***
> `abstract` **search**(`query`): [`VectorQuery`](VectorQuery.md)
### tags()
Create a search query to find the nearest neighbors
of the given query vector
```ts
abstract tags(): Promise<Tags>
```
##### Parameters
Get a tags manager for this table.
• **query**: `IntoVector`
Tags allow you to label specific versions of a table with a human-readable name.
The returned tags manager can be used to list, create, update, or delete tags.
the query vector
#### Returns
##### Returns
`Promise`&lt;[`Tags`](Tags.md)&gt;
A tags manager for this table
#### Example
```typescript
const tagsManager = await table.tags();
await tagsManager.create("v1", 1);
const tags = await tagsManager.list();
console.log(tags); // { "v1": { version: 1, manifestSize: ... } }
```
[`VectorQuery`](VectorQuery.md)
***
### toArrow()
```ts
abstract toArrow(): Promise<Table<any>>
```
> `abstract` **toArrow**(): `Promise`&lt;`Table`&lt;`any`&gt;&gt;
Return the table as an arrow table
@@ -677,15 +567,13 @@ Return the table as an arrow table
#### update(opts)
```ts
abstract update(opts): Promise<void>
```
> `abstract` **update**(`opts`): `Promise`&lt;`void`&gt;
Update existing records in the Table
##### Parameters
* **opts**: `object` & `Partial`&lt;[`UpdateOptions`](../interfaces/UpdateOptions.md)&gt;
**opts**: `object` & `Partial`&lt;[`UpdateOptions`](../interfaces/UpdateOptions.md)&gt;
##### Returns
@@ -699,15 +587,13 @@ table.update({where:"x = 2", values:{"vector": [10, 10]}})
#### update(opts)
```ts
abstract update(opts): Promise<void>
```
> `abstract` **update**(`opts`): `Promise`&lt;`void`&gt;
Update existing records in the Table
##### Parameters
* **opts**: `object` & `Partial`&lt;[`UpdateOptions`](../interfaces/UpdateOptions.md)&gt;
**opts**: `object` & `Partial`&lt;[`UpdateOptions`](../interfaces/UpdateOptions.md)&gt;
##### Returns
@@ -721,9 +607,7 @@ table.update({where:"x = 2", valuesSql:{"x": "x + 1"}})
#### update(updates, options)
```ts
abstract update(updates, options?): Promise<void>
```
> `abstract` **update**(`updates`, `options`?): `Promise`&lt;`void`&gt;
Update existing records in the Table
@@ -742,17 +626,20 @@ repeatedly calilng this method.
##### Parameters
* **updates**: `Record`&lt;`string`, `string`&gt; \| `Map`&lt;`string`, `string`&gt;
the
columns to update
Keys in the map should specify the name of the column to update.
Values in the map provide the new value of the column. These can
be SQL literal strings (e.g. "7" or "'foo'") or they can be expressions
based on the row being updated (e.g. "my_col + 1")
**updates**: `Record`&lt;`string`, `string`&gt; \| `Map`&lt;`string`, `string`&gt;
* **options?**: `Partial`&lt;[`UpdateOptions`](../interfaces/UpdateOptions.md)&gt;
additional options to control
the update behavior
the
columns to update
Keys in the map should specify the name of the column to update.
Values in the map provide the new value of the column. These can
be SQL literal strings (e.g. "7" or "'foo'") or they can be expressions
based on the row being updated (e.g. "my_col + 1")
• **options?**: `Partial`&lt;[`UpdateOptions`](../interfaces/UpdateOptions.md)&gt;
additional options to control
the update behavior
##### Returns
@@ -762,9 +649,7 @@ repeatedly calilng this method.
### vectorSearch()
```ts
abstract vectorSearch(vector): VectorQuery
```
> `abstract` **vectorSearch**(`vector`): [`VectorQuery`](VectorQuery.md)
Search the table with a given query vector.
@@ -774,7 +659,7 @@ by `query`.
#### Parameters
* **vector**: [`IntoVector`](../type-aliases/IntoVector.md)
**vector**: `IntoVector`
#### Returns
@@ -788,9 +673,7 @@ by `query`.
### version()
```ts
abstract version(): Promise<number>
```
> `abstract` **version**(): `Promise`&lt;`number`&gt;
Retrieve the version of the table
@@ -800,23 +683,26 @@ Retrieve the version of the table
***
### waitForIndex()
### parseTableData()
```ts
abstract waitForIndex(indexNames, timeoutSeconds): Promise<void>
```
Waits for asynchronous indexing to complete on the table.
> `static` **parseTableData**(`data`, `options`?, `streaming`?): `Promise`&lt;`object`&gt;
#### Parameters
* **indexNames**: `string`[]
The name of the indices to wait for
**data**: `TableLike` \| `Record`&lt;`string`, `unknown`&gt;[]
* **timeoutSeconds**: `number`
The number of seconds to wait before timing out
This will raise an error if the indices are not created and fully indexed within the timeout.
**options?**: `Partial`&lt;[`CreateTableOptions`](../interfaces/CreateTableOptions.md)&gt;
• **streaming?**: `boolean` = `false`
#### Returns
`Promise`&lt;`void`&gt;
`Promise`&lt;`object`&gt;
##### buf
> **buf**: `Buffer`
##### mode
> **mode**: `string`

View File

@@ -1,35 +0,0 @@
[**@lancedb/lancedb**](../README.md) • **Docs**
***
[@lancedb/lancedb](../globals.md) / TagContents
# Class: TagContents
## Constructors
### new TagContents()
```ts
new TagContents(): TagContents
```
#### Returns
[`TagContents`](TagContents.md)
## Properties
### manifestSize
```ts
manifestSize: number;
```
***
### version
```ts
version: number;
```

View File

@@ -1,99 +0,0 @@
[**@lancedb/lancedb**](../README.md) • **Docs**
***
[@lancedb/lancedb](../globals.md) / Tags
# Class: Tags
## Constructors
### new Tags()
```ts
new Tags(): Tags
```
#### Returns
[`Tags`](Tags.md)
## Methods
### create()
```ts
create(tag, version): Promise<void>
```
#### Parameters
* **tag**: `string`
* **version**: `number`
#### Returns
`Promise`&lt;`void`&gt;
***
### delete()
```ts
delete(tag): Promise<void>
```
#### Parameters
* **tag**: `string`
#### Returns
`Promise`&lt;`void`&gt;
***
### getVersion()
```ts
getVersion(tag): Promise<number>
```
#### Parameters
* **tag**: `string`
#### Returns
`Promise`&lt;`number`&gt;
***
### list()
```ts
list(): Promise<Record<string, TagContents>>
```
#### Returns
`Promise`&lt;`Record`&lt;`string`, [`TagContents`](TagContents.md)&gt;&gt;
***
### update()
```ts
update(tag, version): Promise<void>
```
#### Parameters
* **tag**: `string`
* **version**: `number`
#### Returns
`Promise`&lt;`void`&gt;

View File

@@ -10,13 +10,11 @@
### new VectorColumnOptions()
```ts
new VectorColumnOptions(values?): VectorColumnOptions
```
> **new VectorColumnOptions**(`values`?): [`VectorColumnOptions`](VectorColumnOptions.md)
#### Parameters
* **values?**: `Partial`&lt;[`VectorColumnOptions`](VectorColumnOptions.md)&gt;
**values?**: `Partial`&lt;[`VectorColumnOptions`](VectorColumnOptions.md)&gt;
#### Returns
@@ -26,8 +24,6 @@ new VectorColumnOptions(values?): VectorColumnOptions
### type
```ts
type: Float<Floats>;
```
> **type**: `Float`&lt;`Floats`&gt;
Vector column type.

View File

@@ -10,21 +10,33 @@ A builder used to construct a vector search
This builder can be reused to execute the query many times.
## See
[Query#nearestTo](Query.md#nearestto)
## Extends
- [`QueryBase`](QueryBase.md)&lt;`NativeVectorQuery`&gt;
## Constructors
### new VectorQuery()
> **new VectorQuery**(`inner`): [`VectorQuery`](VectorQuery.md)
#### Parameters
**inner**: `VectorQuery` \| `Promise`&lt;`VectorQuery`&gt;
#### Returns
[`VectorQuery`](VectorQuery.md)
#### Overrides
[`QueryBase`](QueryBase.md).[`constructor`](QueryBase.md#constructors)
## Properties
### inner
```ts
protected inner: VectorQuery | Promise<VectorQuery>;
```
> `protected` **inner**: `VectorQuery` \| `Promise`&lt;`VectorQuery`&gt;
#### Inherited from
@@ -32,74 +44,23 @@ protected inner: VectorQuery | Promise<VectorQuery>;
## Methods
### addQueryVector()
### \[asyncIterator\]()
```ts
addQueryVector(vector): VectorQuery
```
#### Parameters
* **vector**: [`IntoVector`](../type-aliases/IntoVector.md)
> **\[asyncIterator\]**(): `AsyncIterator`&lt;`RecordBatch`&lt;`any`&gt;, `any`, `undefined`&gt;
#### Returns
[`VectorQuery`](VectorQuery.md)
***
### analyzePlan()
```ts
analyzePlan(): Promise<string>
```
Executes the query and returns the physical query plan annotated with runtime metrics.
This is useful for debugging and performance analysis, as it shows how the query was executed
and includes metrics such as elapsed time, rows processed, and I/O statistics.
#### Returns
`Promise`&lt;`string`&gt;
A query execution plan with runtime metrics for each step.
#### Example
```ts
import * as lancedb from "@lancedb/lancedb"
const db = await lancedb.connect("./.lancedb");
const table = await db.createTable("my_table", [
{ vector: [1.1, 0.9], id: "1" },
]);
const plan = await table.query().nearestTo([0.5, 0.2]).analyzePlan();
Example output (with runtime metrics inlined):
AnalyzeExec verbose=true, metrics=[]
ProjectionExec: expr=[id@3 as id, vector@0 as vector, _distance@2 as _distance], metrics=[output_rows=1, elapsed_compute=3.292µs]
Take: columns="vector, _rowid, _distance, (id)", metrics=[output_rows=1, elapsed_compute=66.001µs, batches_processed=1, bytes_read=8, iops=1, requests=1]
CoalesceBatchesExec: target_batch_size=1024, metrics=[output_rows=1, elapsed_compute=3.333µs]
GlobalLimitExec: skip=0, fetch=10, metrics=[output_rows=1, elapsed_compute=167ns]
FilterExec: _distance@2 IS NOT NULL, metrics=[output_rows=1, elapsed_compute=8.542µs]
SortExec: TopK(fetch=10), expr=[_distance@2 ASC NULLS LAST], metrics=[output_rows=1, elapsed_compute=63.25µs, row_replacements=1]
KNNVectorDistance: metric=l2, metrics=[output_rows=1, elapsed_compute=114.333µs, output_batches=1]
LanceScan: uri=/path/to/data, projection=[vector], row_id=true, row_addr=false, ordered=false, metrics=[output_rows=1, elapsed_compute=103.626µs, bytes_read=549, iops=2, requests=2]
```
`AsyncIterator`&lt;`RecordBatch`&lt;`any`&gt;, `any`, `undefined`&gt;
#### Inherited from
[`QueryBase`](QueryBase.md).[`analyzePlan`](QueryBase.md#analyzeplan)
[`QueryBase`](QueryBase.md).[`[asyncIterator]`](QueryBase.md#%5Basynciterator%5D)
***
### bypassVectorIndex()
```ts
bypassVectorIndex(): VectorQuery
```
> **bypassVectorIndex**(): [`VectorQuery`](VectorQuery.md)
If this is called then any vector index is skipped
@@ -117,9 +78,7 @@ calculate your recall to select an appropriate value for nprobes.
### column()
```ts
column(column): VectorQuery
```
> **column**(`column`): [`VectorQuery`](VectorQuery.md)
Set the vector column to query
@@ -128,7 +87,7 @@ the call to
#### Parameters
* **column**: `string`
**column**: `string`
#### Returns
@@ -143,29 +102,9 @@ whose data type is a fixed-size-list of floats.
***
### distanceRange()
```ts
distanceRange(lowerBound?, upperBound?): VectorQuery
```
#### Parameters
* **lowerBound?**: `number`
* **upperBound?**: `number`
#### Returns
[`VectorQuery`](VectorQuery.md)
***
### distanceType()
```ts
distanceType(distanceType): VectorQuery
```
> **distanceType**(`distanceType`): [`VectorQuery`](VectorQuery.md)
Set the distance metric to use
@@ -175,7 +114,7 @@ use. See
#### Parameters
* **distanceType**: `"l2"` \| `"cosine"` \| `"dot"`
**distanceType**: `"l2"` \| `"cosine"` \| `"dot"`
#### Returns
@@ -194,41 +133,33 @@ By default "l2" is used.
***
### ef()
### doCall()
```ts
ef(ef): VectorQuery
```
Set the number of candidates to consider during the search
This argument is only used when the vector column has an HNSW index.
If there is no index then this value is ignored.
Increasing this value will increase the recall of your query but will
also increase the latency of your query. The default value is 1.5*limit.
> `protected` **doCall**(`fn`): `void`
#### Parameters
* **ef**: `number`
**fn**
#### Returns
[`VectorQuery`](VectorQuery.md)
`void`
#### Inherited from
[`QueryBase`](QueryBase.md).[`doCall`](QueryBase.md#docall)
***
### execute()
```ts
protected execute(options?): RecordBatchIterator
```
> `protected` **execute**(`options`?): [`RecordBatchIterator`](RecordBatchIterator.md)
Execute the query and return the results as an
#### Parameters
* **options?**: `Partial`&lt;[`QueryExecutionOptions`](../interfaces/QueryExecutionOptions.md)&gt;
**options?**: `Partial`&lt;`QueryExecutionOptions`&gt;
#### Returns
@@ -254,16 +185,15 @@ single query)
### explainPlan()
```ts
explainPlan(verbose): Promise<string>
```
> **explainPlan**(`verbose`): `Promise`&lt;`string`&gt;
Generates an explanation of the query execution plan.
#### Parameters
* **verbose**: `boolean` = `false`
If true, provides a more detailed explanation. Defaults to false.
**verbose**: `boolean` = `false`
If true, provides a more detailed explanation. Defaults to false.
#### Returns
@@ -288,44 +218,21 @@ const plan = await table.query().nearestTo([0.5, 0.2]).explainPlan();
***
### fastSearch()
```ts
fastSearch(): this
```
Skip searching un-indexed data. This can make search faster, but will miss
any data that is not yet indexed.
Use [Table#optimize](Table.md#optimize) to index all un-indexed data.
#### Returns
`this`
#### Inherited from
[`QueryBase`](QueryBase.md).[`fastSearch`](QueryBase.md#fastsearch)
***
### ~~filter()~~
```ts
filter(predicate): this
```
> **filter**(`predicate`): `this`
A filter statement to be applied to this query.
#### Parameters
* **predicate**: `string`
**predicate**: `string`
#### Returns
`this`
#### See
#### Alias
where
@@ -339,33 +246,9 @@ Use `where` instead
***
### fullTextSearch()
```ts
fullTextSearch(query, options?): this
```
#### Parameters
* **query**: `string` \| [`FullTextQuery`](../interfaces/FullTextQuery.md)
* **options?**: `Partial`&lt;[`FullTextSearchOptions`](../interfaces/FullTextSearchOptions.md)&gt;
#### Returns
`this`
#### Inherited from
[`QueryBase`](QueryBase.md).[`fullTextSearch`](QueryBase.md#fulltextsearch)
***
### limit()
```ts
limit(limit): this
```
> **limit**(`limit`): `this`
Set the maximum number of results to return.
@@ -374,7 +257,7 @@ called then every valid row from the table will be returned.
#### Parameters
* **limit**: `number`
**limit**: `number`
#### Returns
@@ -386,11 +269,27 @@ called then every valid row from the table will be returned.
***
### nativeExecute()
> `protected` **nativeExecute**(`options`?): `Promise`&lt;`RecordBatchIterator`&gt;
#### Parameters
**options?**: `Partial`&lt;`QueryExecutionOptions`&gt;
#### Returns
`Promise`&lt;`RecordBatchIterator`&gt;
#### Inherited from
[`QueryBase`](QueryBase.md).[`nativeExecute`](QueryBase.md#nativeexecute)
***
### nprobes()
```ts
nprobes(nprobes): VectorQuery
```
> **nprobes**(`nprobes`): [`VectorQuery`](VectorQuery.md)
Set the number of partitions to search (probe)
@@ -415,7 +314,7 @@ you the desired recall.
#### Parameters
* **nprobes**: `number`
**nprobes**: `number`
#### Returns
@@ -423,31 +322,9 @@ you the desired recall.
***
### offset()
```ts
offset(offset): this
```
#### Parameters
* **offset**: `number`
#### Returns
`this`
#### Inherited from
[`QueryBase`](QueryBase.md).[`offset`](QueryBase.md#offset)
***
### postfilter()
```ts
postfilter(): VectorQuery
```
> **postfilter**(): [`VectorQuery`](VectorQuery.md)
If this is called then filtering will happen after the vector search instead of
before.
@@ -479,9 +356,7 @@ factor can often help restore some of the results lost by post filtering.
### refineFactor()
```ts
refineFactor(refineFactor): VectorQuery
```
> **refineFactor**(`refineFactor`): [`VectorQuery`](VectorQuery.md)
A multiplier to control how many additional rows are taken during the refine step
@@ -513,23 +388,7 @@ distance between the query vector and the actual uncompressed vector.
#### Parameters
* **refineFactor**: `number`
#### Returns
[`VectorQuery`](VectorQuery.md)
***
### rerank()
```ts
rerank(reranker): VectorQuery
```
#### Parameters
* **reranker**: [`Reranker`](../namespaces/rerankers/interfaces/Reranker.md)
**refineFactor**: `number`
#### Returns
@@ -539,9 +398,7 @@ rerank(reranker): VectorQuery
### select()
```ts
select(columns): this
```
> **select**(`columns`): `this`
Return only the specified columns.
@@ -565,7 +422,7 @@ input to this method would be:
#### Parameters
* **columns**: `string` \| `string`[] \| `Record`&lt;`string`, `string`&gt; \| `Map`&lt;`string`, `string`&gt;
**columns**: `string` \| `string`[] \| `Record`&lt;`string`, `string`&gt; \| `Map`&lt;`string`, `string`&gt;
#### Returns
@@ -592,15 +449,13 @@ object insertion order is easy to get wrong and `Map` is more foolproof.
### toArray()
```ts
toArray(options?): Promise<any[]>
```
> **toArray**(`options`?): `Promise`&lt;`any`[]&gt;
Collect the results as an array of objects.
#### Parameters
* **options?**: `Partial`&lt;[`QueryExecutionOptions`](../interfaces/QueryExecutionOptions.md)&gt;
**options?**: `Partial`&lt;`QueryExecutionOptions`&gt;
#### Returns
@@ -614,15 +469,13 @@ Collect the results as an array of objects.
### toArrow()
```ts
toArrow(options?): Promise<Table<any>>
```
> **toArrow**(`options`?): `Promise`&lt;`Table`&lt;`any`&gt;&gt;
Collect the results as an Arrow
#### Parameters
* **options?**: `Partial`&lt;[`QueryExecutionOptions`](../interfaces/QueryExecutionOptions.md)&gt;
**options?**: `Partial`&lt;`QueryExecutionOptions`&gt;
#### Returns
@@ -640,9 +493,7 @@ ArrowTable.
### where()
```ts
where(predicate): this
```
> **where**(`predicate`): `this`
A filter statement to be applied to this query.
@@ -650,7 +501,7 @@ The filter should be supplied as an SQL query string. For example:
#### Parameters
* **predicate**: `string`
**predicate**: `string`
#### Returns
@@ -670,25 +521,3 @@ on the filter column(s).
#### Inherited from
[`QueryBase`](QueryBase.md).[`where`](QueryBase.md#where)
***
### withRowId()
```ts
withRowId(): this
```
Whether to return the row id in the results.
This column can be used to match results between different queries. For
example, to match results from a full text search and a vector search in
order to perform hybrid search.
#### Returns
`this`
#### Inherited from
[`QueryBase`](QueryBase.md).[`withRowId`](QueryBase.md#withrowid)

View File

@@ -1,46 +0,0 @@
[**@lancedb/lancedb**](../README.md) • **Docs**
***
[@lancedb/lancedb](../globals.md) / FullTextQueryType
# Enumeration: FullTextQueryType
Enum representing the types of full-text queries supported.
- `Match`: Performs a full-text search for terms in the query string.
- `MatchPhrase`: Searches for an exact phrase match in the text.
- `Boost`: Boosts the relevance score of specific terms in the query.
- `MultiMatch`: Searches across multiple fields for the query terms.
## Enumeration Members
### Boost
```ts
Boost: "boost";
```
***
### Match
```ts
Match: "match";
```
***
### MatchPhrase
```ts
MatchPhrase: "match_phrase";
```
***
### MultiMatch
```ts
MultiMatch: "multi_match";
```

View File

@@ -0,0 +1,27 @@
[**@lancedb/lancedb**](../README.md) • **Docs**
***
[@lancedb/lancedb](../globals.md) / WriteMode
# Enumeration: WriteMode
Write mode for writing a table.
## Enumeration Members
### Append
> **Append**: `"Append"`
***
### Create
> **Create**: `"Create"`
***
### Overwrite
> **Overwrite**: `"Overwrite"`

View File

@@ -6,11 +6,9 @@
# Function: connect()
## connect(uri, options)
## connect(uri, opts)
```ts
function connect(uri, options?): Promise<Connection>
```
> **connect**(`uri`, `opts`?): `Promise`&lt;[`Connection`](../classes/Connection.md)&gt;
Connect to a LanceDB instance at the given URI.
@@ -22,12 +20,12 @@ Accepted formats:
### Parameters
* **uri**: `string`
The uri of the database. If the database uri starts
with `db://` then it connects to a remote database.
**uri**: `string`
* **options?**: `Partial`&lt;[`ConnectionOptions`](../interfaces/ConnectionOptions.md)&gt;
The options to use when connecting to the database
The uri of the database. If the database uri starts
with `db://` then it connects to a remote database.
**opts?**: `Partial`&lt;[`ConnectionOptions`](../interfaces/ConnectionOptions.md) \| `RemoteConnectionOptions`&gt;
### Returns
@@ -50,11 +48,9 @@ const conn = await connect(
});
```
## connect(options)
## connect(opts)
```ts
function connect(options): Promise<Connection>
```
> **connect**(`opts`): `Promise`&lt;[`Connection`](../classes/Connection.md)&gt;
Connect to a LanceDB instance at the given URI.
@@ -66,8 +62,7 @@ Accepted formats:
### Parameters
* **options**: `Partial`&lt;[`ConnectionOptions`](../interfaces/ConnectionOptions.md)&gt; & `object`
The options to use when connecting to the database
**opts**: `Partial`&lt;[`ConnectionOptions`](../interfaces/ConnectionOptions.md) \| `RemoteConnectionOptions`&gt; & `object`
### Returns

View File

@@ -6,12 +6,7 @@
# Function: makeArrowTable()
```ts
function makeArrowTable(
data,
options?,
metadata?): ArrowTable
```
> **makeArrowTable**(`data`, `options`?, `metadata`?): `ArrowTable`
An enhanced version of the makeTable function from Apache Arrow
that supports nested fields and embeddings columns.
@@ -22,6 +17,8 @@ when creating a table or adding data to it)
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.
@@ -29,9 +26,6 @@ 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 a type
is inferred it will always be nullable.
If not all fields are found in the data, then a subset of the schema will be
returned.
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
@@ -39,7 +33,6 @@ rules are as follows:
- boolean => Bool
- number => Float64
- bigint => Int64
- String => Utf8
- Buffer => Binary
- Record<String, any> => Struct
@@ -47,11 +40,11 @@ rules are as follows:
## Parameters
* **data**: `Record`&lt;`string`, `unknown`&gt;[]
**data**: `Record`&lt;`string`, `unknown`&gt;[]
* **options?**: `Partial`&lt;[`MakeArrowTableOptions`](../classes/MakeArrowTableOptions.md)&gt;
**options?**: `Partial`&lt;[`MakeArrowTableOptions`](../classes/MakeArrowTableOptions.md)&gt;
* **metadata?**: `Map`&lt;`string`, `string`&gt;
**metadata?**: `Map`&lt;`string`, `string`&gt;
## Returns
@@ -59,7 +52,6 @@ rules are as follows:
## Example
```ts
import { fromTableToBuffer, makeArrowTable } from "../arrow";
import { Field, FixedSizeList, Float16, Float32, Int32, Schema } from "apache-arrow";
@@ -81,40 +73,42 @@ 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);
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
```ts
```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())))
]);
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() }
}
}
{ 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)
```

View File

@@ -1,19 +0,0 @@
[**@lancedb/lancedb**](../README.md) • **Docs**
***
[@lancedb/lancedb](../globals.md) / packBits
# Function: packBits()
```ts
function packBits(data): number[]
```
## Parameters
* **data**: `number`[]
## Returns
`number`[]

View File

@@ -7,28 +7,20 @@
## Namespaces
- [embedding](namespaces/embedding/README.md)
- [rerankers](namespaces/rerankers/README.md)
## Enumerations
- [FullTextQueryType](enumerations/FullTextQueryType.md)
- [WriteMode](enumerations/WriteMode.md)
## Classes
- [BoostQuery](classes/BoostQuery.md)
- [Connection](classes/Connection.md)
- [Index](classes/Index.md)
- [MakeArrowTableOptions](classes/MakeArrowTableOptions.md)
- [MatchQuery](classes/MatchQuery.md)
- [MergeInsertBuilder](classes/MergeInsertBuilder.md)
- [MultiMatchQuery](classes/MultiMatchQuery.md)
- [PhraseQuery](classes/PhraseQuery.md)
- [Query](classes/Query.md)
- [QueryBase](classes/QueryBase.md)
- [RecordBatchIterator](classes/RecordBatchIterator.md)
- [Table](classes/Table.md)
- [TagContents](classes/TagContents.md)
- [Tags](classes/Tags.md)
- [VectorColumnOptions](classes/VectorColumnOptions.md)
- [VectorQuery](classes/VectorQuery.md)
@@ -36,50 +28,25 @@
- [AddColumnsSql](interfaces/AddColumnsSql.md)
- [AddDataOptions](interfaces/AddDataOptions.md)
- [ClientConfig](interfaces/ClientConfig.md)
- [ColumnAlteration](interfaces/ColumnAlteration.md)
- [CompactionStats](interfaces/CompactionStats.md)
- [ConnectionOptions](interfaces/ConnectionOptions.md)
- [CreateTableOptions](interfaces/CreateTableOptions.md)
- [ExecutableQuery](interfaces/ExecutableQuery.md)
- [FragmentStatistics](interfaces/FragmentStatistics.md)
- [FragmentSummaryStats](interfaces/FragmentSummaryStats.md)
- [FtsOptions](interfaces/FtsOptions.md)
- [FullTextQuery](interfaces/FullTextQuery.md)
- [FullTextSearchOptions](interfaces/FullTextSearchOptions.md)
- [HnswPqOptions](interfaces/HnswPqOptions.md)
- [HnswSqOptions](interfaces/HnswSqOptions.md)
- [IndexConfig](interfaces/IndexConfig.md)
- [IndexMetadata](interfaces/IndexMetadata.md)
- [IndexOptions](interfaces/IndexOptions.md)
- [IndexStatistics](interfaces/IndexStatistics.md)
- [IvfFlatOptions](interfaces/IvfFlatOptions.md)
- [IvfPqOptions](interfaces/IvfPqOptions.md)
- [MergeStats](interfaces/MergeStats.md)
- [OpenTableOptions](interfaces/OpenTableOptions.md)
- [OptimizeOptions](interfaces/OptimizeOptions.md)
- [OptimizeStats](interfaces/OptimizeStats.md)
- [QueryExecutionOptions](interfaces/QueryExecutionOptions.md)
- [RemovalStats](interfaces/RemovalStats.md)
- [RetryConfig](interfaces/RetryConfig.md)
- [FtsOptions](interfaces/FtsOptions.md)
- [TableNamesOptions](interfaces/TableNamesOptions.md)
- [TableStatistics](interfaces/TableStatistics.md)
- [TimeoutConfig](interfaces/TimeoutConfig.md)
- [UpdateOptions](interfaces/UpdateOptions.md)
- [Version](interfaces/Version.md)
- [WriteOptions](interfaces/WriteOptions.md)
## Type Aliases
- [Data](type-aliases/Data.md)
- [DataLike](type-aliases/DataLike.md)
- [FieldLike](type-aliases/FieldLike.md)
- [IntoSql](type-aliases/IntoSql.md)
- [IntoVector](type-aliases/IntoVector.md)
- [RecordBatchLike](type-aliases/RecordBatchLike.md)
- [SchemaLike](type-aliases/SchemaLike.md)
- [TableLike](type-aliases/TableLike.md)
## Functions
- [connect](functions/connect.md)
- [makeArrowTable](functions/makeArrowTable.md)
- [packBits](functions/packBits.md)

View File

@@ -12,9 +12,7 @@ A definition of a new column to add to a table.
### name
```ts
name: string;
```
> **name**: `string`
The name of the new column.
@@ -22,9 +20,7 @@ The name of the new column.
### valueSql
```ts
valueSql: string;
```
> **valueSql**: `string`
The values to populate the new column with, as a SQL expression.
The expression can reference other columns in the table.

View File

@@ -12,9 +12,7 @@ Options for adding data to a table.
### mode
```ts
mode: "append" | "overwrite";
```
> **mode**: `"append"` \| `"overwrite"`
If "append" (the default) then the new data will be added to the table

View File

@@ -1,39 +0,0 @@
[**@lancedb/lancedb**](../README.md) • **Docs**
***
[@lancedb/lancedb](../globals.md) / ClientConfig
# Interface: ClientConfig
## Properties
### extraHeaders?
```ts
optional extraHeaders: Record<string, string>;
```
***
### retryConfig?
```ts
optional retryConfig: RetryConfig;
```
***
### timeoutConfig?
```ts
optional timeoutConfig: TimeoutConfig;
```
***
### userAgent?
```ts
optional userAgent: string;
```

View File

@@ -13,29 +13,9 @@ must be provided.
## Properties
### dataType?
```ts
optional dataType: string | DataType<Type, any>;
```
A new data type for the column. If not provided then the data type will not be changed.
Changing data types is limited to casting to the same general type. For example, these
changes are valid:
* `int32` -> `int64` (integers)
* `double` -> `float` (floats)
* `string` -> `large_string` (strings)
But these changes are not:
* `int32` -> `double` (mix integers and floats)
* `string` -> `int32` (mix strings and integers)
***
### nullable?
```ts
optional nullable: boolean;
```
> `optional` **nullable**: `boolean`
Set the new nullability. Note that a nullable column cannot be made non-nullable.
@@ -43,9 +23,7 @@ Set the new nullability. Note that a nullable column cannot be made non-nullable
### path
```ts
path: string;
```
> **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
@@ -56,9 +34,7 @@ a nested column then it is the path to the column, e.g. "a.b.c" for a column
### rename?
```ts
optional rename: string;
```
> `optional` **rename**: `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.

View File

@@ -1,49 +0,0 @@
[**@lancedb/lancedb**](../README.md) • **Docs**
***
[@lancedb/lancedb](../globals.md) / CompactionStats
# Interface: CompactionStats
Statistics about a compaction operation.
## Properties
### filesAdded
```ts
filesAdded: number;
```
The number of new, compacted data files added
***
### filesRemoved
```ts
filesRemoved: number;
```
The number of data files removed
***
### fragmentsAdded
```ts
fragmentsAdded: number;
```
The number of new, compacted fragments added
***
### fragmentsRemoved
```ts
fragmentsRemoved: number;
```
The number of fragments removed

View File

@@ -8,44 +8,9 @@
## Properties
### apiKey?
```ts
optional apiKey: string;
```
(For LanceDB cloud only): the API key to use with LanceDB Cloud.
Can also be set via the environment variable `LANCEDB_API_KEY`.
***
### clientConfig?
```ts
optional clientConfig: ClientConfig;
```
(For LanceDB cloud only): configuration for the remote HTTP client.
***
### hostOverride?
```ts
optional hostOverride: string;
```
(For LanceDB cloud only): the host to use for LanceDB cloud. Used
for testing purposes.
***
### readConsistencyInterval?
```ts
optional readConsistencyInterval: number;
```
> `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
@@ -59,22 +24,9 @@ always consistent.
***
### region?
```ts
optional region: string;
```
(For LanceDB cloud only): the region to use for LanceDB cloud.
Defaults to 'us-east-1'.
***
### storageOptions?
```ts
optional storageOptions: Record<string, string>;
```
> `optional` **storageOptions**: `Record`&lt;`string`, `string`&gt;
(For LanceDB OSS only): configuration for object storage.

View File

@@ -8,54 +8,15 @@
## Properties
### ~~dataStorageVersion?~~
```ts
optional dataStorageVersion: string;
```
The version of the data storage format to use.
The default is `stable`.
Set to "legacy" to use the old format.
#### Deprecated
Pass `new_table_data_storage_version` to storageOptions instead.
***
### embeddingFunction?
```ts
optional embeddingFunction: EmbeddingFunctionConfig;
```
***
### ~~enableV2ManifestPaths?~~
```ts
optional enableV2ManifestPaths: boolean;
```
Use the new V2 manifest paths. These paths provide more efficient
opening of datasets with many versions on object stores. WARNING:
turning this on will make the dataset unreadable for older versions
of LanceDB (prior to 0.10.0). To migrate an existing dataset, instead
use the LocalTable#migrateManifestPathsV2 method.
#### Deprecated
Pass `new_table_enable_v2_manifest_paths` to storageOptions instead.
> `optional` **embeddingFunction**: [`EmbeddingFunctionConfig`](../namespaces/embedding/interfaces/EmbeddingFunctionConfig.md)
***
### existOk
```ts
existOk: boolean;
```
> **existOk**: `boolean`
If this is true and the table already exists and the mode is "create"
then no error will be raised.
@@ -64,9 +25,7 @@ then no error will be raised.
### mode
```ts
mode: "overwrite" | "create";
```
> **mode**: `"overwrite"` \| `"create"`
The mode to use when creating the table.
@@ -80,17 +39,13 @@ If this is set to "overwrite" then any existing table will be replaced.
### schema?
```ts
optional schema: SchemaLike;
```
> `optional` **schema**: `SchemaLike`
***
### storageOptions?
```ts
optional storageOptions: Record<string, string>;
```
> `optional` **storageOptions**: `Record`&lt;`string`, `string`&gt;
Configuration for object storage.
@@ -98,3 +53,13 @@ Options already set on the connection will be inherited by the table,
but can be overridden here.
The available options are described at https://lancedb.github.io/lancedb/guides/storage/
***
### useLegacyFormat?
> `optional` **useLegacyFormat**: `boolean`
If true then data files will be written with the legacy format
The default is true while the new format is in beta

View File

@@ -1,37 +0,0 @@
[**@lancedb/lancedb**](../README.md) • **Docs**
***
[@lancedb/lancedb](../globals.md) / FragmentStatistics
# Interface: FragmentStatistics
## Properties
### lengths
```ts
lengths: FragmentSummaryStats;
```
Statistics on the number of rows in the table fragments
***
### numFragments
```ts
numFragments: number;
```
The number of fragments in the table
***
### numSmallFragments
```ts
numSmallFragments: number;
```
The number of uncompacted fragments in the table

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