Compare commits

...

12 Commits

Author SHA1 Message Date
Will Jones
f2f0739f8c docs: enhance Update user guide 2023-12-20 15:13:59 -08:00
Will Jones
88ce1e574a docs: update node API reference 2023-12-20 15:13:37 -08:00
Chang She
7856a94d2c feat(python): support nested reference for fts (#723)
https://github.com/lancedb/lance/issues/1739

Support nested field reference in full text search

---------

Co-authored-by: Will Jones <willjones127@gmail.com>
2023-12-20 12:28:53 -08:00
Chang She
371d2f979e feat(python): add option to flatten output in to_pandas (#722)
Closes https://github.com/lancedb/lance/issues/1738

We add a `flatten` parameter to the signature of `to_pandas`. By default
this is None and does nothing.
If set to True or -1, then LanceDB will flatten structs before
converting to a pandas dataframe. All nested structs are also flattened.
If set to any positive integer, then LanceDB will flatten structs up to
the specified level of nesting.

---------

Co-authored-by: Weston Pace <weston.pace@gmail.com>
2023-12-20 12:23:07 -08:00
Aidan
fff8e399a3 feat: Node create index API (#720) 2023-12-20 15:22:35 -05:00
Aidan
73e4015797 feat: Node Schema API (#717) 2023-12-20 12:16:40 -05:00
Lance Release
5142a27482 Updating package-lock.json 2023-12-18 18:15:50 +00:00
Lance Release
81df2a524e Updating package-lock.json 2023-12-18 17:29:58 +00:00
Lance Release
40638e5515 Bump version: 0.3.11 → 0.4.0 2023-12-18 17:29:47 +00:00
Lance Release
018314a5c1 [python] Bump version: 0.3.6 → 0.4.0 2023-12-18 17:27:26 +00:00
Lei Xu
409eb30ea5 chore: bump lance version to 0.9 (#715) 2023-12-17 22:11:42 -05:00
Lance Release
ff9872fd44 Updating package-lock.json 2023-12-15 18:25:06 +00:00
43 changed files with 1683 additions and 358 deletions

View File

@@ -1,5 +1,5 @@
[bumpversion]
current_version = 0.3.11
current_version = 0.4.0
commit = True
message = Bump version: {current_version} → {new_version}
tag = True

View File

@@ -5,10 +5,10 @@ exclude = ["python"]
resolver = "2"
[workspace.dependencies]
lance = { "version" = "=0.8.20", "features" = ["dynamodb"] }
lance-index = { "version" = "=0.8.20" }
lance-linalg = { "version" = "=0.8.20" }
lance-testing = { "version" = "=0.8.20" }
lance = { "version" = "=0.9.0", "features" = ["dynamodb"] }
lance-index = { "version" = "=0.9.0" }
lance-linalg = { "version" = "=0.9.0" }
lance-testing = { "version" = "=0.9.0" }
# Note that this one does not include pyarrow
arrow = { version = "47.0.0", optional = false }
arrow-array = "47.0"

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@@ -2,3 +2,4 @@ mkdocs==1.4.2
mkdocs-jupyter==0.24.1
mkdocs-material==9.1.3
mkdocstrings[python]==0.20.0
pydantic

View File

@@ -1,5 +1,7 @@
<a href="https://colab.research.google.com/github/lancedb/lancedb/blob/main/docs/src/notebooks/tables_guide.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a><br/>
A Table is a collection of Records in a LanceDB Database. You can follow along on colab!
A Table is a collection of Records in a LanceDB Database. Tables in Lance have a schema that defines the columns and their types. These schemas can include nested columns and can evolve over time.
This guide will show how to create tables, insert data into them, and update the data. You can follow along on colab!
## Creating a LanceDB Table
@@ -361,19 +363,28 @@ Use the `delete()` method on tables to delete rows from a table. To choose which
await tbl.countRows() // Returns 1
```
### Updating a Table [Experimental]
EXPERIMENTAL: Update rows in the table (not threadsafe).
## Updating a Table
This can be used to update zero to all rows depending on how many rows match the where clause.
This can be used to update zero to all rows depending on how many rows match the where clause. The update queries follow the form of a SQL UPDATE statement. The `where` parameter is a SQL filter that matches on the metadata columns. The `values` or `values_sql` parameters are used to provide the new values for the columns.
| Parameter | Type | Description |
| Parameter | Type | Description |
|---|---|---|
| `where` | `str` | The SQL where clause to use when updating rows. For example, `'x = 2'` or `'x IN (1, 2, 3)'`. The filter must not be empty, or it will error. |
| `values` | `dict` | The values to update. The keys are the column names and the values are the values to set. |
| `values_sql` | `dict` | The values to update. The keys are the column names and the values are the SQL expressions to set. For example, `{'x': 'x + 1'}` will increment the value of the `x` column by 1. |
!!! info "SQL syntax"
See [SQL filters](sql.md) for more information on the supported SQL syntax.
!!! warning "Warning"
Updating nested columns is not yet supported.
=== "Python"
API Reference: [lancedb.table.Table.update][]
```python
import lancedb
import pandas as pd
@@ -403,6 +414,55 @@ This can be used to update zero to all rows depending on how many rows match the
2 2 [10.0, 10.0]
```
=== "Javascript/Typescript"
API Reference: [vectordb.Table.update](../../javascript/interfaces/Table/#update)
```javascript
const lancedb = require("vectordb");
const db = await lancedb.connect("./.lancedb");
const data = [
{x: 1, vector: [1, 2]},
{x: 2, vector: [3, 4]},
{x: 3, vector: [5, 6]},
];
const tbl = await db.createTable("my_table", data)
await tbl.update({ where: "x = 2", values: {vector: [10, 10]} })
```
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"
```python
# Update the table where x = 2
table.update(valuesSql={"x": "x + 1"})
print(table.to_pandas())
```
Output
```shell
x vector
0 2 [1.0, 2.0]
1 4 [5.0, 6.0]
2 3 [10.0, 10.0]
```
=== "Javascript/Typescript"
```javascript
await tbl.update({ valuesSql: { x: "x + 1" } })
```
!!! info "Note"
When rows are updated, they are moved out of the index. The row will still show up in ANN queries, but the query will not be as fast as it would be if the row was in the index. If you update a large proportion of rows, consider rebuilding the index afterwards.
## What's Next?
Learn how to Query your tables and create indices

View File

@@ -12,7 +12,7 @@ npm install vectordb
This will download the appropriate native library for your platform. We currently
support x86_64 Linux, aarch64 Linux, Intel MacOS, and ARM (M1/M2) MacOS. We do not
yet support Windows or musl-based Linux (such as Alpine Linux).
yet support musl-based Linux (such as Alpine Linux).
## Usage

View File

@@ -0,0 +1,41 @@
[vectordb](../README.md) / [Exports](../modules.md) / DefaultWriteOptions
# Class: DefaultWriteOptions
Write options when creating a Table.
## Implements
- [`WriteOptions`](../interfaces/WriteOptions.md)
## Table of contents
### Constructors
- [constructor](DefaultWriteOptions.md#constructor)
### Properties
- [writeMode](DefaultWriteOptions.md#writemode)
## Constructors
### constructor
**new DefaultWriteOptions**()
## Properties
### writeMode
**writeMode**: [`WriteMode`](../enums/WriteMode.md) = `WriteMode.Create`
A [WriteMode](../enums/WriteMode.md) to use on this operation
#### Implementation of
[WriteOptions](../interfaces/WriteOptions.md).[writeMode](../interfaces/WriteOptions.md#writemode)
#### Defined in
[index.ts:778](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L778)

View File

@@ -26,7 +26,7 @@ A connection to a LanceDB database.
### Methods
- [createTable](LocalConnection.md#createtable)
- [createTableArrow](LocalConnection.md#createtablearrow)
- [createTableImpl](LocalConnection.md#createtableimpl)
- [dropTable](LocalConnection.md#droptable)
- [openTable](LocalConnection.md#opentable)
- [tableNames](LocalConnection.md#tablenames)
@@ -46,7 +46,7 @@ A connection to a LanceDB database.
#### Defined in
[index.ts:184](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L184)
[index.ts:355](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L355)
## Properties
@@ -56,17 +56,25 @@ A connection to a LanceDB database.
#### Defined in
[index.ts:182](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L182)
[index.ts:353](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L353)
___
### \_options
`Private` `Readonly` **\_options**: [`ConnectionOptions`](../interfaces/ConnectionOptions.md)
`Private` `Readonly` **\_options**: () => [`ConnectionOptions`](../interfaces/ConnectionOptions.md)
#### Type declaration
▸ (): [`ConnectionOptions`](../interfaces/ConnectionOptions.md)
##### Returns
[`ConnectionOptions`](../interfaces/ConnectionOptions.md)
#### Defined in
[index.ts:181](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L181)
[index.ts:352](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L352)
## Accessors
@@ -84,27 +92,34 @@ ___
#### Defined in
[index.ts:189](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L189)
[index.ts:360](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L360)
## Methods
### createTable
**createTable**(`name`, `data`, `mode?`): `Promise`<[`Table`](../interfaces/Table.md)<`number`[]\>\>
**createTable**\<`T`\>(`name`, `data?`, `optsOrEmbedding?`, `opt?`): `Promise`\<[`Table`](../interfaces/Table.md)\<`T`\>\>
Creates a new Table and initialize it with new data.
Creates a new Table, optionally initializing it with new data.
#### Type parameters
| Name |
| :------ |
| `T` |
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `name` | `string` | The name of the table. |
| `data` | `Record`<`string`, `unknown`\>[] | Non-empty Array of Records to be inserted into the Table |
| `mode?` | [`WriteMode`](../enums/WriteMode.md) | The write mode to use when creating the table. |
| Name | Type |
| :------ | :------ |
| `name` | `string` \| [`CreateTableOptions`](../interfaces/CreateTableOptions.md)\<`T`\> |
| `data?` | `Record`\<`string`, `unknown`\>[] |
| `optsOrEmbedding?` | [`WriteOptions`](../interfaces/WriteOptions.md) \| [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)\<`T`\> |
| `opt?` | [`WriteOptions`](../interfaces/WriteOptions.md) |
#### Returns
`Promise`<[`Table`](../interfaces/Table.md)<`number`[]\>\>
`Promise`\<[`Table`](../interfaces/Table.md)\<`T`\>\>
#### Implementation of
@@ -112,120 +127,44 @@ Creates a new Table and initialize it with new data.
#### Defined in
[index.ts:230](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L230)
**createTable**(`name`, `data`, `mode`): `Promise`<[`Table`](../interfaces/Table.md)<`number`[]\>\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `name` | `string` |
| `data` | `Record`<`string`, `unknown`\>[] |
| `mode` | [`WriteMode`](../enums/WriteMode.md) |
#### Returns
`Promise`<[`Table`](../interfaces/Table.md)<`number`[]\>\>
#### Implementation of
Connection.createTable
#### Defined in
[index.ts:231](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L231)
**createTable**<`T`\>(`name`, `data`, `mode`, `embeddings`): `Promise`<[`Table`](../interfaces/Table.md)<`T`\>\>
Creates a new Table and initialize it with new data.
#### Type parameters
| Name |
| :------ |
| `T` |
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `name` | `string` | The name of the table. |
| `data` | `Record`<`string`, `unknown`\>[] | Non-empty Array of Records to be inserted into the Table |
| `mode` | [`WriteMode`](../enums/WriteMode.md) | The write mode to use when creating the table. |
| `embeddings` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)<`T`\> | An embedding function to use on this Table |
#### Returns
`Promise`<[`Table`](../interfaces/Table.md)<`T`\>\>
#### Implementation of
Connection.createTable
#### Defined in
[index.ts:241](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L241)
**createTable**<`T`\>(`name`, `data`, `mode`, `embeddings?`): `Promise`<[`Table`](../interfaces/Table.md)<`T`\>\>
#### Type parameters
| Name |
| :------ |
| `T` |
#### Parameters
| Name | Type |
| :------ | :------ |
| `name` | `string` |
| `data` | `Record`<`string`, `unknown`\>[] |
| `mode` | [`WriteMode`](../enums/WriteMode.md) |
| `embeddings?` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)<`T`\> |
#### Returns
`Promise`<[`Table`](../interfaces/Table.md)<`T`\>\>
#### Implementation of
Connection.createTable
#### Defined in
[index.ts:242](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L242)
[index.ts:395](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L395)
___
### createTableArrow
### createTableImpl
**createTableArrow**(`name`, `table`): `Promise`<[`Table`](../interfaces/Table.md)<`number`[]\>\>
`Private` **createTableImpl**\<`T`\>(`«destructured»`): `Promise`\<[`Table`](../interfaces/Table.md)\<`T`\>\>
#### Type parameters
| Name |
| :------ |
| `T` |
#### Parameters
| Name | Type |
| :------ | :------ |
| `name` | `string` |
| `table` | `Table`<`any`\> |
| `«destructured»` | `Object` |
|  `data?` | `Table`\<`any`\> \| `Record`\<`string`, `unknown`\>[] |
|  `embeddingFunction?` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)\<`T`\> |
|  `name` | `string` |
|  `schema?` | `Schema`\<`any`\> |
|  `writeOptions?` | [`WriteOptions`](../interfaces/WriteOptions.md) |
#### Returns
`Promise`<[`Table`](../interfaces/Table.md)<`number`[]\>\>
#### Implementation of
[Connection](../interfaces/Connection.md).[createTableArrow](../interfaces/Connection.md#createtablearrow)
`Promise`\<[`Table`](../interfaces/Table.md)\<`T`\>\>
#### Defined in
[index.ts:266](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L266)
[index.ts:413](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L413)
___
### dropTable
**dropTable**(`name`): `Promise`<`void`\>
**dropTable**(`name`): `Promise`\<`void`\>
Drop an existing table.
@@ -237,7 +176,7 @@ Drop an existing table.
#### Returns
`Promise`<`void`\>
`Promise`\<`void`\>
#### Implementation of
@@ -245,13 +184,13 @@ Drop an existing table.
#### Defined in
[index.ts:276](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L276)
[index.ts:453](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L453)
___
### openTable
**openTable**(`name`): `Promise`<[`Table`](../interfaces/Table.md)<`number`[]\>\>
**openTable**(`name`): `Promise`\<[`Table`](../interfaces/Table.md)\<`number`[]\>\>
Open a table in the database.
@@ -263,7 +202,7 @@ Open a table in the database.
#### Returns
`Promise`<[`Table`](../interfaces/Table.md)<`number`[]\>\>
`Promise`\<[`Table`](../interfaces/Table.md)\<`number`[]\>\>
#### Implementation of
@@ -271,9 +210,9 @@ Open a table in the database.
#### Defined in
[index.ts:205](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L205)
[index.ts:376](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L376)
**openTable**<`T`\>(`name`, `embeddings`): `Promise`<[`Table`](../interfaces/Table.md)<`T`\>\>
**openTable**\<`T`\>(`name`, `embeddings`): `Promise`\<[`Table`](../interfaces/Table.md)\<`T`\>\>
Open a table in the database.
@@ -288,11 +227,11 @@ Open a table in the database.
| Name | Type | Description |
| :------ | :------ | :------ |
| `name` | `string` | The name of the table. |
| `embeddings` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)<`T`\> | An embedding function to use on this Table |
| `embeddings` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)\<`T`\> | An embedding function to use on this Table |
#### Returns
`Promise`<[`Table`](../interfaces/Table.md)<`T`\>\>
`Promise`\<[`Table`](../interfaces/Table.md)\<`T`\>\>
#### Implementation of
@@ -300,9 +239,9 @@ Connection.openTable
#### Defined in
[index.ts:212](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L212)
[index.ts:384](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L384)
**openTable**<`T`\>(`name`, `embeddings?`): `Promise`<[`Table`](../interfaces/Table.md)<`T`\>\>
**openTable**\<`T`\>(`name`, `embeddings?`): `Promise`\<[`Table`](../interfaces/Table.md)\<`T`\>\>
#### Type parameters
@@ -315,11 +254,11 @@ Connection.openTable
| Name | Type |
| :------ | :------ |
| `name` | `string` |
| `embeddings?` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)<`T`\> |
| `embeddings?` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)\<`T`\> |
#### Returns
`Promise`<[`Table`](../interfaces/Table.md)<`T`\>\>
`Promise`\<[`Table`](../interfaces/Table.md)\<`T`\>\>
#### Implementation of
@@ -327,19 +266,19 @@ Connection.openTable
#### Defined in
[index.ts:213](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L213)
[index.ts:385](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L385)
___
### tableNames
**tableNames**(): `Promise`<`string`[]\>
**tableNames**(): `Promise`\<`string`[]\>
Get the names of all tables in the database.
#### Returns
`Promise`<`string`[]\>
`Promise`\<`string`[]\>
#### Implementation of
@@ -347,4 +286,4 @@ Get the names of all tables in the database.
#### Defined in
[index.ts:196](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L196)
[index.ts:367](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L367)

View File

@@ -1,6 +1,6 @@
[vectordb](../README.md) / [Exports](../modules.md) / LocalTable
# Class: LocalTable<T\>
# Class: LocalTable\<T\>
A LanceDB Table is the collection of Records. Each Record has one or more vector fields.
@@ -12,7 +12,7 @@ A LanceDB Table is the collection of Records. Each Record has one or more vector
## Implements
- [`Table`](../interfaces/Table.md)<`T`\>
- [`Table`](../interfaces/Table.md)\<`T`\>
## Table of contents
@@ -26,6 +26,7 @@ A LanceDB Table is the collection of Records. Each Record has one or more vector
- [\_name](LocalTable.md#_name)
- [\_options](LocalTable.md#_options)
- [\_tbl](LocalTable.md#_tbl)
- [where](LocalTable.md#where)
### Accessors
@@ -34,17 +35,23 @@ A LanceDB Table is the collection of Records. Each Record has one or more vector
### Methods
- [add](LocalTable.md#add)
- [cleanupOldVersions](LocalTable.md#cleanupoldversions)
- [compactFiles](LocalTable.md#compactfiles)
- [countRows](LocalTable.md#countrows)
- [createIndex](LocalTable.md#createindex)
- [delete](LocalTable.md#delete)
- [filter](LocalTable.md#filter)
- [indexStats](LocalTable.md#indexstats)
- [listIndices](LocalTable.md#listindices)
- [overwrite](LocalTable.md#overwrite)
- [search](LocalTable.md#search)
- [update](LocalTable.md#update)
## Constructors
### constructor
**new LocalTable**<`T`\>(`tbl`, `name`, `options`)
**new LocalTable**\<`T`\>(`tbl`, `name`, `options`)
#### Type parameters
@@ -62,9 +69,9 @@ A LanceDB Table is the collection of Records. Each Record has one or more vector
#### Defined in
[index.ts:287](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L287)
[index.ts:464](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L464)
**new LocalTable**<`T`\>(`tbl`, `name`, `options`, `embeddings`)
**new LocalTable**\<`T`\>(`tbl`, `name`, `options`, `embeddings`)
#### Type parameters
@@ -79,21 +86,21 @@ A LanceDB Table is the collection of Records. Each Record has one or more vector
| `tbl` | `any` | |
| `name` | `string` | |
| `options` | [`ConnectionOptions`](../interfaces/ConnectionOptions.md) | |
| `embeddings` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)<`T`\> | An embedding function to use when interacting with this table |
| `embeddings` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)\<`T`\> | An embedding function to use when interacting with this table |
#### Defined in
[index.ts:294](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L294)
[index.ts:471](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L471)
## Properties
### \_embeddings
`Private` `Optional` `Readonly` **\_embeddings**: [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)<`T`\>
`Private` `Optional` `Readonly` **\_embeddings**: [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)\<`T`\>
#### Defined in
[index.ts:284](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L284)
[index.ts:461](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L461)
___
@@ -103,27 +110,61 @@ ___
#### Defined in
[index.ts:283](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L283)
[index.ts:460](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L460)
___
### \_options
`Private` `Readonly` **\_options**: [`ConnectionOptions`](../interfaces/ConnectionOptions.md)
`Private` `Readonly` **\_options**: () => [`ConnectionOptions`](../interfaces/ConnectionOptions.md)
#### Type declaration
▸ (): [`ConnectionOptions`](../interfaces/ConnectionOptions.md)
##### Returns
[`ConnectionOptions`](../interfaces/ConnectionOptions.md)
#### Defined in
[index.ts:285](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L285)
[index.ts:462](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L462)
___
### \_tbl
`Private` `Readonly` **\_tbl**: `any`
`Private` **\_tbl**: `any`
#### Defined in
[index.ts:282](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L282)
[index.ts:459](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L459)
___
### where
**where**: (`value`: `string`) => [`Query`](Query.md)\<`T`\>
#### Type declaration
▸ (`value`): [`Query`](Query.md)\<`T`\>
Creates a filter query to find all rows matching the specified criteria
##### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `value` | `string` | The filter criteria (like SQL where clause syntax) |
##### Returns
[`Query`](Query.md)\<`T`\>
#### Defined in
[index.ts:499](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L499)
## Accessors
@@ -141,13 +182,13 @@ ___
#### Defined in
[index.ts:302](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L302)
[index.ts:479](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L479)
## Methods
### add
**add**(`data`): `Promise`<`number`\>
**add**(`data`): `Promise`\<`number`\>
Insert records into this Table.
@@ -155,11 +196,11 @@ Insert records into this Table.
| Name | Type | Description |
| :------ | :------ | :------ |
| `data` | `Record`<`string`, `unknown`\>[] | Records to be inserted into the Table |
| `data` | `Record`\<`string`, `unknown`\>[] | Records to be inserted into the Table |
#### Returns
`Promise`<`number`\>
`Promise`\<`number`\>
The number of rows added to the table
@@ -169,19 +210,69 @@ The number of rows added to the table
#### Defined in
[index.ts:320](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L320)
[index.ts:507](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L507)
___
### cleanupOldVersions
**cleanupOldVersions**(`olderThan?`, `deleteUnverified?`): `Promise`\<[`CleanupStats`](../interfaces/CleanupStats.md)\>
Clean up old versions of the table, freeing disk space.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `olderThan?` | `number` | The minimum age in minutes of the versions to delete. If not provided, defaults to two weeks. |
| `deleteUnverified?` | `boolean` | Because they may be part of an in-progress transaction, uncommitted files newer than 7 days old are not deleted by default. This means that failed transactions can leave around data that takes up disk space for up to 7 days. You can override this safety mechanism by setting this option to `true`, only if you promise there are no in progress writes while you run this operation. Failure to uphold this promise can lead to corrupted tables. |
#### Returns
`Promise`\<[`CleanupStats`](../interfaces/CleanupStats.md)\>
#### Defined in
[index.ts:596](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L596)
___
### compactFiles
**compactFiles**(`options?`): `Promise`\<[`CompactionMetrics`](../interfaces/CompactionMetrics.md)\>
Run the compaction process on the table.
This can be run after making several small appends to optimize the table
for faster reads.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `options?` | [`CompactionOptions`](../interfaces/CompactionOptions.md) | Advanced options configuring compaction. In most cases, you can omit this arguments, as the default options are sensible for most tables. |
#### Returns
`Promise`\<[`CompactionMetrics`](../interfaces/CompactionMetrics.md)\>
Metrics about the compaction operation.
#### Defined in
[index.ts:615](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L615)
___
### countRows
**countRows**(): `Promise`<`number`\>
**countRows**(): `Promise`\<`number`\>
Returns the number of rows in this table.
#### Returns
`Promise`<`number`\>
`Promise`\<`number`\>
#### Implementation of
@@ -189,20 +280,16 @@ Returns the number of rows in this table.
#### Defined in
[index.ts:362](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L362)
[index.ts:543](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L543)
___
### createIndex
**createIndex**(`indexParams`): `Promise`<`any`\>
**createIndex**(`indexParams`): `Promise`\<`any`\>
Create an ANN index on this Table vector index.
**`See`**
VectorIndexParams.
#### Parameters
| Name | Type | Description |
@@ -211,7 +298,11 @@ VectorIndexParams.
#### Returns
`Promise`<`any`\>
`Promise`\<`any`\>
**`See`**
VectorIndexParams.
#### Implementation of
@@ -219,13 +310,13 @@ VectorIndexParams.
#### Defined in
[index.ts:355](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L355)
[index.ts:536](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L536)
___
### delete
**delete**(`filter`): `Promise`<`void`\>
**delete**(`filter`): `Promise`\<`void`\>
Delete rows from this table.
@@ -237,7 +328,7 @@ Delete rows from this table.
#### Returns
`Promise`<`void`\>
`Promise`\<`void`\>
#### Implementation of
@@ -245,13 +336,81 @@ Delete rows from this table.
#### Defined in
[index.ts:371](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L371)
[index.ts:552](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L552)
___
### filter
**filter**(`value`): [`Query`](Query.md)\<`T`\>
Creates a filter query to find all rows matching the specified criteria
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `value` | `string` | The filter criteria (like SQL where clause syntax) |
#### Returns
[`Query`](Query.md)\<`T`\>
#### Defined in
[index.ts:495](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L495)
___
### indexStats
**indexStats**(`indexUuid`): `Promise`\<[`IndexStats`](../interfaces/IndexStats.md)\>
Get statistics about an index.
#### Parameters
| Name | Type |
| :------ | :------ |
| `indexUuid` | `string` |
#### Returns
`Promise`\<[`IndexStats`](../interfaces/IndexStats.md)\>
#### Implementation of
[Table](../interfaces/Table.md).[indexStats](../interfaces/Table.md#indexstats)
#### Defined in
[index.ts:628](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L628)
___
### listIndices
**listIndices**(): `Promise`\<[`VectorIndex`](../interfaces/VectorIndex.md)[]\>
List the indicies on this table.
#### Returns
`Promise`\<[`VectorIndex`](../interfaces/VectorIndex.md)[]\>
#### Implementation of
[Table](../interfaces/Table.md).[listIndices](../interfaces/Table.md#listindices)
#### Defined in
[index.ts:624](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L624)
___
### overwrite
**overwrite**(`data`): `Promise`<`number`\>
**overwrite**(`data`): `Promise`\<`number`\>
Insert records into this Table, replacing its contents.
@@ -259,11 +418,11 @@ Insert records into this Table, replacing its contents.
| Name | Type | Description |
| :------ | :------ | :------ |
| `data` | `Record`<`string`, `unknown`\>[] | Records to be inserted into the Table |
| `data` | `Record`\<`string`, `unknown`\>[] | Records to be inserted into the Table |
#### Returns
`Promise`<`number`\>
`Promise`\<`number`\>
The number of rows added to the table
@@ -273,13 +432,13 @@ The number of rows added to the table
#### Defined in
[index.ts:338](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L338)
[index.ts:522](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L522)
___
### search
**search**(`query`): [`Query`](Query.md)<`T`\>
**search**(`query`): [`Query`](Query.md)\<`T`\>
Creates a search query to find the nearest neighbors of the given search term
@@ -291,7 +450,7 @@ Creates a search query to find the nearest neighbors of the given search term
#### Returns
[`Query`](Query.md)<`T`\>
[`Query`](Query.md)\<`T`\>
#### Implementation of
@@ -299,4 +458,30 @@ Creates a search query to find the nearest neighbors of the given search term
#### Defined in
[index.ts:310](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L310)
[index.ts:487](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L487)
___
### update
**update**(`args`): `Promise`\<`void`\>
Update rows in this table.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `args` | [`UpdateArgs`](../interfaces/UpdateArgs.md) \| [`UpdateSqlArgs`](../interfaces/UpdateSqlArgs.md) | see [UpdateArgs](../interfaces/UpdateArgs.md) and [UpdateSqlArgs](../interfaces/UpdateSqlArgs.md) for more details |
#### Returns
`Promise`\<`void`\>
#### Implementation of
[Table](../interfaces/Table.md).[update](../interfaces/Table.md#update)
#### Defined in
[index.ts:563](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L563)

View File

@@ -6,7 +6,7 @@ An embedding function that automatically creates vector representation for a giv
## Implements
- [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)<`string`\>
- [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)\<`string`\>
## Table of contents
@@ -40,7 +40,7 @@ An embedding function that automatically creates vector representation for a giv
#### Defined in
[embedding/openai.ts:21](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/embedding/openai.ts#L21)
[embedding/openai.ts:21](https://github.com/lancedb/lancedb/blob/7856a94/node/src/embedding/openai.ts#L21)
## Properties
@@ -50,7 +50,7 @@ An embedding function that automatically creates vector representation for a giv
#### Defined in
[embedding/openai.ts:19](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/embedding/openai.ts#L19)
[embedding/openai.ts:19](https://github.com/lancedb/lancedb/blob/7856a94/node/src/embedding/openai.ts#L19)
___
@@ -60,7 +60,7 @@ ___
#### Defined in
[embedding/openai.ts:18](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/embedding/openai.ts#L18)
[embedding/openai.ts:18](https://github.com/lancedb/lancedb/blob/7856a94/node/src/embedding/openai.ts#L18)
___
@@ -76,13 +76,13 @@ The name of the column that will be used as input for the Embedding Function.
#### Defined in
[embedding/openai.ts:50](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/embedding/openai.ts#L50)
[embedding/openai.ts:50](https://github.com/lancedb/lancedb/blob/7856a94/node/src/embedding/openai.ts#L50)
## Methods
### embed
**embed**(`data`): `Promise`<`number`[][]\>
**embed**(`data`): `Promise`\<`number`[][]\>
Creates a vector representation for the given values.
@@ -94,7 +94,7 @@ Creates a vector representation for the given values.
#### Returns
`Promise`<`number`[][]\>
`Promise`\<`number`[][]\>
#### Implementation of
@@ -102,4 +102,4 @@ Creates a vector representation for the given values.
#### Defined in
[embedding/openai.ts:38](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/embedding/openai.ts#L38)
[embedding/openai.ts:38](https://github.com/lancedb/lancedb/blob/7856a94/node/src/embedding/openai.ts#L38)

View File

@@ -1,6 +1,6 @@
[vectordb](../README.md) / [Exports](../modules.md) / Query
# Class: Query<T\>
# Class: Query\<T\>
A builder for nearest neighbor queries for LanceDB.
@@ -23,6 +23,7 @@ A builder for nearest neighbor queries for LanceDB.
- [\_limit](Query.md#_limit)
- [\_metricType](Query.md#_metrictype)
- [\_nprobes](Query.md#_nprobes)
- [\_prefilter](Query.md#_prefilter)
- [\_query](Query.md#_query)
- [\_queryVector](Query.md#_queryvector)
- [\_refineFactor](Query.md#_refinefactor)
@@ -34,9 +35,11 @@ A builder for nearest neighbor queries for LanceDB.
- [execute](Query.md#execute)
- [filter](Query.md#filter)
- [isElectron](Query.md#iselectron)
- [limit](Query.md#limit)
- [metricType](Query.md#metrictype)
- [nprobes](Query.md#nprobes)
- [prefilter](Query.md#prefilter)
- [refineFactor](Query.md#refinefactor)
- [select](Query.md#select)
@@ -44,7 +47,7 @@ A builder for nearest neighbor queries for LanceDB.
### constructor
**new Query**<`T`\>(`tbl`, `query`, `embeddings?`)
**new Query**\<`T`\>(`query?`, `tbl?`, `embeddings?`)
#### Type parameters
@@ -56,23 +59,23 @@ A builder for nearest neighbor queries for LanceDB.
| Name | Type |
| :------ | :------ |
| `tbl` | `any` |
| `query` | `T` |
| `embeddings?` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)<`T`\> |
| `query?` | `T` |
| `tbl?` | `any` |
| `embeddings?` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)\<`T`\> |
#### Defined in
[index.ts:448](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L448)
[query.ts:38](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L38)
## Properties
### \_embeddings
`Private` `Optional` `Readonly` **\_embeddings**: [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)<`T`\>
`Protected` `Optional` `Readonly` **\_embeddings**: [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)\<`T`\>
#### Defined in
[index.ts:446](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L446)
[query.ts:36](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L36)
___
@@ -82,17 +85,17 @@ ___
#### Defined in
[index.ts:444](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L444)
[query.ts:33](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L33)
___
### \_limit
`Private` **\_limit**: `number`
`Private` `Optional` **\_limit**: `number`
#### Defined in
[index.ts:440](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L440)
[query.ts:29](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L29)
___
@@ -102,7 +105,7 @@ ___
#### Defined in
[index.ts:445](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L445)
[query.ts:34](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L34)
___
@@ -112,17 +115,27 @@ ___
#### Defined in
[index.ts:442](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L442)
[query.ts:31](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L31)
___
### \_prefilter
`Private` **\_prefilter**: `boolean`
#### Defined in
[query.ts:35](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L35)
___
### \_query
`Private` `Readonly` **\_query**: `T`
`Private` `Optional` `Readonly` **\_query**: `T`
#### Defined in
[index.ts:438](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L438)
[query.ts:26](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L26)
___
@@ -132,7 +145,7 @@ ___
#### Defined in
[index.ts:439](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L439)
[query.ts:28](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L28)
___
@@ -142,7 +155,7 @@ ___
#### Defined in
[index.ts:441](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L441)
[query.ts:30](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L30)
___
@@ -152,27 +165,27 @@ ___
#### Defined in
[index.ts:443](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L443)
[query.ts:32](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L32)
___
### \_tbl
`Private` `Readonly` **\_tbl**: `any`
`Private` `Optional` `Readonly` **\_tbl**: `any`
#### Defined in
[index.ts:437](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L437)
[query.ts:27](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L27)
___
### where
**where**: (`value`: `string`) => [`Query`](Query.md)<`T`\>
**where**: (`value`: `string`) => [`Query`](Query.md)\<`T`\>
#### Type declaration
▸ (`value`): [`Query`](Query.md)<`T`\>
▸ (`value`): [`Query`](Query.md)\<`T`\>
A filter statement to be applied to this query.
@@ -184,17 +197,17 @@ A filter statement to be applied to this query.
##### Returns
[`Query`](Query.md)<`T`\>
[`Query`](Query.md)\<`T`\>
#### Defined in
[index.ts:496](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L496)
[query.ts:87](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L87)
## Methods
### execute
**execute**<`T`\>(): `Promise`<`T`[]\>
**execute**\<`T`\>(): `Promise`\<`T`[]\>
Execute the query and return the results as an Array of Objects
@@ -202,21 +215,21 @@ Execute the query and return the results as an Array of Objects
| Name | Type |
| :------ | :------ |
| `T` | `Record`<`string`, `unknown`\> |
| `T` | `Record`\<`string`, `unknown`\> |
#### Returns
`Promise`<`T`[]\>
`Promise`\<`T`[]\>
#### Defined in
[index.ts:519](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L519)
[query.ts:115](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L115)
___
### filter
**filter**(`value`): [`Query`](Query.md)<`T`\>
**filter**(`value`): [`Query`](Query.md)\<`T`\>
A filter statement to be applied to this query.
@@ -228,17 +241,31 @@ A filter statement to be applied to this query.
#### Returns
[`Query`](Query.md)<`T`\>
[`Query`](Query.md)\<`T`\>
#### Defined in
[index.ts:491](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L491)
[query.ts:82](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L82)
___
### isElectron
`Private` **isElectron**(): `boolean`
#### Returns
`boolean`
#### Defined in
[query.ts:142](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L142)
___
### limit
**limit**(`value`): [`Query`](Query.md)<`T`\>
**limit**(`value`): [`Query`](Query.md)\<`T`\>
Sets the number of results that will be returned
@@ -250,24 +277,20 @@ Sets the number of results that will be returned
#### Returns
[`Query`](Query.md)<`T`\>
[`Query`](Query.md)\<`T`\>
#### Defined in
[index.ts:464](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L464)
[query.ts:55](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L55)
___
### metricType
**metricType**(`value`): [`Query`](Query.md)<`T`\>
**metricType**(`value`): [`Query`](Query.md)\<`T`\>
The MetricType used for this Query.
**`See`**
MetricType for the different options
#### Parameters
| Name | Type | Description |
@@ -276,17 +299,21 @@ MetricType for the different options
#### Returns
[`Query`](Query.md)<`T`\>
[`Query`](Query.md)\<`T`\>
**`See`**
MetricType for the different options
#### Defined in
[index.ts:511](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L511)
[query.ts:102](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L102)
___
### nprobes
**nprobes**(`value`): [`Query`](Query.md)<`T`\>
**nprobes**(`value`): [`Query`](Query.md)\<`T`\>
The number of probes used. A higher number makes search more accurate but also slower.
@@ -298,17 +325,37 @@ The number of probes used. A higher number makes search more accurate but also s
#### Returns
[`Query`](Query.md)<`T`\>
[`Query`](Query.md)\<`T`\>
#### Defined in
[index.ts:482](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L482)
[query.ts:73](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L73)
___
### prefilter
**prefilter**(`value`): [`Query`](Query.md)\<`T`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `value` | `boolean` |
#### Returns
[`Query`](Query.md)\<`T`\>
#### Defined in
[query.ts:107](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L107)
___
### refineFactor
**refineFactor**(`value`): [`Query`](Query.md)<`T`\>
**refineFactor**(`value`): [`Query`](Query.md)\<`T`\>
Refine the results by reading extra elements and re-ranking them in memory.
@@ -320,17 +367,17 @@ Refine the results by reading extra elements and re-ranking them in memory.
#### Returns
[`Query`](Query.md)<`T`\>
[`Query`](Query.md)\<`T`\>
#### Defined in
[index.ts:473](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L473)
[query.ts:64](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L64)
___
### select
**select**(`value`): [`Query`](Query.md)<`T`\>
**select**(`value`): [`Query`](Query.md)\<`T`\>
Return only the specified columns.
@@ -342,8 +389,8 @@ Return only the specified columns.
#### Returns
[`Query`](Query.md)<`T`\>
[`Query`](Query.md)\<`T`\>
#### Defined in
[index.ts:502](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L502)
[query.ts:93](https://github.com/lancedb/lancedb/blob/7856a94/node/src/query.ts#L93)

View File

@@ -22,7 +22,7 @@ Cosine distance
#### Defined in
[index.ts:567](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L567)
[index.ts:798](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L798)
___
@@ -34,7 +34,7 @@ Dot product
#### Defined in
[index.ts:572](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L572)
[index.ts:803](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L803)
___
@@ -46,4 +46,4 @@ Euclidean distance
#### Defined in
[index.ts:562](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L562)
[index.ts:793](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L793)

View File

@@ -22,7 +22,7 @@ Append new data to the table.
#### Defined in
[index.ts:552](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L552)
[index.ts:766](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L766)
___
@@ -34,7 +34,7 @@ Create a new [Table](../interfaces/Table.md).
#### Defined in
[index.ts:548](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L548)
[index.ts:762](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L762)
___
@@ -46,4 +46,4 @@ Overwrite the existing [Table](../interfaces/Table.md) if presented.
#### Defined in
[index.ts:550](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L550)
[index.ts:764](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L764)

View File

@@ -18,7 +18,7 @@
#### Defined in
[index.ts:31](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L31)
[index.ts:34](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L34)
___
@@ -28,7 +28,7 @@ ___
#### Defined in
[index.ts:33](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L33)
[index.ts:36](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L36)
___
@@ -38,4 +38,4 @@ ___
#### Defined in
[index.ts:35](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L35)
[index.ts:38](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L38)

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@@ -0,0 +1,34 @@
[vectordb](../README.md) / [Exports](../modules.md) / CleanupStats
# Interface: CleanupStats
## Table of contents
### Properties
- [bytesRemoved](CleanupStats.md#bytesremoved)
- [oldVersions](CleanupStats.md#oldversions)
## Properties
### bytesRemoved
**bytesRemoved**: `number`
The number of bytes removed from disk.
#### Defined in
[index.ts:637](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L637)
___
### oldVersions
**oldVersions**: `number`
The number of old table versions removed.
#### Defined in
[index.ts:641](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L641)

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@@ -0,0 +1,62 @@
[vectordb](../README.md) / [Exports](../modules.md) / CompactionMetrics
# Interface: CompactionMetrics
## Table of contents
### Properties
- [filesAdded](CompactionMetrics.md#filesadded)
- [filesRemoved](CompactionMetrics.md#filesremoved)
- [fragmentsAdded](CompactionMetrics.md#fragmentsadded)
- [fragmentsRemoved](CompactionMetrics.md#fragmentsremoved)
## Properties
### filesAdded
**filesAdded**: `number`
The number of files added. This is typically equal to the number of
fragments added.
#### Defined in
[index.ts:692](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L692)
___
### filesRemoved
**filesRemoved**: `number`
The number of files that were removed. Each fragment may have more than one
file.
#### Defined in
[index.ts:687](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L687)
___
### fragmentsAdded
**fragmentsAdded**: `number`
The number of new fragments that were created.
#### Defined in
[index.ts:682](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L682)
___
### fragmentsRemoved
**fragmentsRemoved**: `number`
The number of fragments that were removed.
#### Defined in
[index.ts:678](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L678)

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@@ -0,0 +1,80 @@
[vectordb](../README.md) / [Exports](../modules.md) / CompactionOptions
# Interface: CompactionOptions
## Table of contents
### Properties
- [materializeDeletions](CompactionOptions.md#materializedeletions)
- [materializeDeletionsThreshold](CompactionOptions.md#materializedeletionsthreshold)
- [maxRowsPerGroup](CompactionOptions.md#maxrowspergroup)
- [numThreads](CompactionOptions.md#numthreads)
- [targetRowsPerFragment](CompactionOptions.md#targetrowsperfragment)
## Properties
### materializeDeletions
`Optional` **materializeDeletions**: `boolean`
If true, fragments that have rows that are deleted may be compacted to
remove the deleted rows. This can improve the performance of queries.
Default is true.
#### Defined in
[index.ts:660](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L660)
___
### materializeDeletionsThreshold
`Optional` **materializeDeletionsThreshold**: `number`
A number between 0 and 1, representing the proportion of rows that must be
marked deleted before a fragment is a candidate for compaction to remove
the deleted rows. Default is 10%.
#### Defined in
[index.ts:666](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L666)
___
### maxRowsPerGroup
`Optional` **maxRowsPerGroup**: `number`
The maximum number of rows per group. Defaults to 1024.
#### Defined in
[index.ts:654](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L654)
___
### numThreads
`Optional` **numThreads**: `number`
The number of threads to use for compaction. If not provided, defaults to
the number of cores on the machine.
#### Defined in
[index.ts:671](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L671)
___
### targetRowsPerFragment
`Optional` **targetRowsPerFragment**: `number`
The number of rows per fragment to target. Fragments that have fewer rows
will be compacted into adjacent fragments to produce larger fragments.
Defaults to 1024 * 1024.
#### Defined in
[index.ts:650](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L650)

View File

@@ -19,7 +19,6 @@ Connection could be local against filesystem or remote against a server.
### Methods
- [createTable](Connection.md#createtable)
- [createTableArrow](Connection.md#createtablearrow)
- [dropTable](Connection.md#droptable)
- [openTable](Connection.md#opentable)
- [tableNames](Connection.md#tablenames)
@@ -32,13 +31,76 @@ Connection could be local against filesystem or remote against a server.
#### Defined in
[index.ts:70](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L70)
[index.ts:125](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L125)
## Methods
### createTable
**createTable**<`T`\>(`name`, `data`, `mode?`, `embeddings?`): `Promise`<[`Table`](Table.md)<`T`\>\>
**createTable**\<`T`\>(`«destructured»`): `Promise`\<[`Table`](Table.md)\<`T`\>\>
Creates a new Table, optionally initializing it with new data.
#### Type parameters
| Name |
| :------ |
| `T` |
#### Parameters
| Name | Type |
| :------ | :------ |
| `«destructured»` | [`CreateTableOptions`](CreateTableOptions.md)\<`T`\> |
#### Returns
`Promise`\<[`Table`](Table.md)\<`T`\>\>
#### Defined in
[index.ts:146](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L146)
**createTable**(`name`, `data`): `Promise`\<[`Table`](Table.md)\<`number`[]\>\>
Creates a new Table and initialize it with new data.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `name` | `string` | The name of the table. |
| `data` | `Record`\<`string`, `unknown`\>[] | Non-empty Array of Records to be inserted into the table |
#### Returns
`Promise`\<[`Table`](Table.md)\<`number`[]\>\>
#### Defined in
[index.ts:154](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L154)
**createTable**(`name`, `data`, `options`): `Promise`\<[`Table`](Table.md)\<`number`[]\>\>
Creates a new Table and initialize it with new data.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `name` | `string` | The name of the table. |
| `data` | `Record`\<`string`, `unknown`\>[] | Non-empty Array of Records to be inserted into the table |
| `options` | [`WriteOptions`](WriteOptions.md) | The write options to use when creating the table. |
#### Returns
`Promise`\<[`Table`](Table.md)\<`number`[]\>\>
#### Defined in
[index.ts:163](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L163)
**createTable**\<`T`\>(`name`, `data`, `embeddings`): `Promise`\<[`Table`](Table.md)\<`T`\>\>
Creates a new Table and initialize it with new data.
@@ -53,44 +115,49 @@ Creates a new Table and initialize it with new data.
| Name | Type | Description |
| :------ | :------ | :------ |
| `name` | `string` | The name of the table. |
| `data` | `Record`<`string`, `unknown`\>[] | Non-empty Array of Records to be inserted into the table |
| `mode?` | [`WriteMode`](../enums/WriteMode.md) | The write mode to use when creating the table. |
| `embeddings?` | [`EmbeddingFunction`](EmbeddingFunction.md)<`T`\> | An embedding function to use on this table |
| `data` | `Record`\<`string`, `unknown`\>[] | Non-empty Array of Records to be inserted into the table |
| `embeddings` | [`EmbeddingFunction`](EmbeddingFunction.md)\<`T`\> | An embedding function to use on this table |
#### Returns
`Promise`<[`Table`](Table.md)<`T`\>\>
`Promise`\<[`Table`](Table.md)\<`T`\>\>
#### Defined in
[index.ts:90](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L90)
[index.ts:172](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L172)
___
**createTable**\<`T`\>(`name`, `data`, `embeddings`, `options`): `Promise`\<[`Table`](Table.md)\<`T`\>\>
### createTableArrow
Creates a new Table and initialize it with new data.
**createTableArrow**(`name`, `table`): `Promise`<[`Table`](Table.md)<`number`[]\>\>
#### Type parameters
| Name |
| :------ |
| `T` |
#### Parameters
| Name | Type |
| :------ | :------ |
| `name` | `string` |
| `table` | `Table`<`any`\> |
| Name | Type | Description |
| :------ | :------ | :------ |
| `name` | `string` | The name of the table. |
| `data` | `Record`\<`string`, `unknown`\>[] | Non-empty Array of Records to be inserted into the table |
| `embeddings` | [`EmbeddingFunction`](EmbeddingFunction.md)\<`T`\> | An embedding function to use on this table |
| `options` | [`WriteOptions`](WriteOptions.md) | The write options to use when creating the table. |
#### Returns
`Promise`<[`Table`](Table.md)<`number`[]\>\>
`Promise`\<[`Table`](Table.md)\<`T`\>\>
#### Defined in
[index.ts:92](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L92)
[index.ts:181](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L181)
___
### dropTable
**dropTable**(`name`): `Promise`<`void`\>
**dropTable**(`name`): `Promise`\<`void`\>
Drop an existing table.
@@ -102,17 +169,17 @@ Drop an existing table.
#### Returns
`Promise`<`void`\>
`Promise`\<`void`\>
#### Defined in
[index.ts:98](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L98)
[index.ts:187](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L187)
___
### openTable
**openTable**<`T`\>(`name`, `embeddings?`): `Promise`<[`Table`](Table.md)<`T`\>\>
**openTable**\<`T`\>(`name`, `embeddings?`): `Promise`\<[`Table`](Table.md)\<`T`\>\>
Open a table in the database.
@@ -127,26 +194,26 @@ Open a table in the database.
| Name | Type | Description |
| :------ | :------ | :------ |
| `name` | `string` | The name of the table. |
| `embeddings?` | [`EmbeddingFunction`](EmbeddingFunction.md)<`T`\> | An embedding function to use on this table |
| `embeddings?` | [`EmbeddingFunction`](EmbeddingFunction.md)\<`T`\> | An embedding function to use on this table |
#### Returns
`Promise`<[`Table`](Table.md)<`T`\>\>
`Promise`\<[`Table`](Table.md)\<`T`\>\>
#### Defined in
[index.ts:80](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L80)
[index.ts:135](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L135)
___
### tableNames
**tableNames**(): `Promise`<`string`[]\>
**tableNames**(): `Promise`\<`string`[]\>
#### Returns
`Promise`<`string`[]\>
`Promise`\<`string`[]\>
#### Defined in
[index.ts:72](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L72)
[index.ts:127](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L127)

View File

@@ -6,18 +6,62 @@
### Properties
- [apiKey](ConnectionOptions.md#apikey)
- [awsCredentials](ConnectionOptions.md#awscredentials)
- [awsRegion](ConnectionOptions.md#awsregion)
- [hostOverride](ConnectionOptions.md#hostoverride)
- [region](ConnectionOptions.md#region)
- [uri](ConnectionOptions.md#uri)
## Properties
### apiKey
`Optional` **apiKey**: `string`
#### Defined in
[index.ts:49](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L49)
___
### awsCredentials
`Optional` **awsCredentials**: [`AwsCredentials`](AwsCredentials.md)
#### Defined in
[index.ts:40](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L40)
[index.ts:44](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L44)
___
### awsRegion
`Optional` **awsRegion**: `string`
#### Defined in
[index.ts:46](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L46)
___
### hostOverride
`Optional` **hostOverride**: `string`
#### Defined in
[index.ts:54](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L54)
___
### region
`Optional` **region**: `string`
#### Defined in
[index.ts:51](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L51)
___
@@ -27,4 +71,4 @@ ___
#### Defined in
[index.ts:39](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L39)
[index.ts:42](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L42)

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@@ -0,0 +1,69 @@
[vectordb](../README.md) / [Exports](../modules.md) / CreateTableOptions
# Interface: CreateTableOptions\<T\>
## Type parameters
| Name |
| :------ |
| `T` |
## Table of contents
### Properties
- [data](CreateTableOptions.md#data)
- [embeddingFunction](CreateTableOptions.md#embeddingfunction)
- [name](CreateTableOptions.md#name)
- [schema](CreateTableOptions.md#schema)
- [writeOptions](CreateTableOptions.md#writeoptions)
## Properties
### data
`Optional` **data**: `Table`\<`any`\> \| `Record`\<`string`, `unknown`\>[]
#### Defined in
[index.ts:79](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L79)
___
### embeddingFunction
`Optional` **embeddingFunction**: [`EmbeddingFunction`](EmbeddingFunction.md)\<`T`\>
#### Defined in
[index.ts:85](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L85)
___
### name
**name**: `string`
#### Defined in
[index.ts:76](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L76)
___
### schema
`Optional` **schema**: `Schema`\<`any`\>
#### Defined in
[index.ts:82](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L82)
___
### writeOptions
`Optional` **writeOptions**: [`WriteOptions`](WriteOptions.md)
#### Defined in
[index.ts:88](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L88)

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@@ -1,6 +1,6 @@
[vectordb](../README.md) / [Exports](../modules.md) / EmbeddingFunction
# Interface: EmbeddingFunction<T\>
# Interface: EmbeddingFunction\<T\>
An embedding function that automatically creates vector representation for a given column.
@@ -25,11 +25,11 @@ An embedding function that automatically creates vector representation for a giv
### embed
**embed**: (`data`: `T`[]) => `Promise`<`number`[][]\>
**embed**: (`data`: `T`[]) => `Promise`\<`number`[][]\>
#### Type declaration
▸ (`data`): `Promise`<`number`[][]\>
▸ (`data`): `Promise`\<`number`[][]\>
Creates a vector representation for the given values.
@@ -41,11 +41,11 @@ Creates a vector representation for the given values.
##### Returns
`Promise`<`number`[][]\>
`Promise`\<`number`[][]\>
#### Defined in
[embedding/embedding_function.ts:27](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/embedding/embedding_function.ts#L27)
[embedding/embedding_function.ts:27](https://github.com/lancedb/lancedb/blob/7856a94/node/src/embedding/embedding_function.ts#L27)
___
@@ -57,4 +57,4 @@ The name of the column that will be used as input for the Embedding Function.
#### Defined in
[embedding/embedding_function.ts:22](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/embedding/embedding_function.ts#L22)
[embedding/embedding_function.ts:22](https://github.com/lancedb/lancedb/blob/7856a94/node/src/embedding/embedding_function.ts#L22)

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@@ -0,0 +1,30 @@
[vectordb](../README.md) / [Exports](../modules.md) / IndexStats
# Interface: IndexStats
## Table of contents
### Properties
- [numIndexedRows](IndexStats.md#numindexedrows)
- [numUnindexedRows](IndexStats.md#numunindexedrows)
## Properties
### numIndexedRows
**numIndexedRows**: ``null`` \| `number`
#### Defined in
[index.ts:344](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L344)
___
### numUnindexedRows
• **numUnindexedRows**: ``null`` \| `number`
#### Defined in
[index.ts:345](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L345)

View File

@@ -7,6 +7,7 @@
### Properties
- [column](IvfPQIndexConfig.md#column)
- [index\_cache\_size](IvfPQIndexConfig.md#index_cache_size)
- [index\_name](IvfPQIndexConfig.md#index_name)
- [max\_iters](IvfPQIndexConfig.md#max_iters)
- [max\_opq\_iters](IvfPQIndexConfig.md#max_opq_iters)
@@ -28,7 +29,19 @@ The column to be indexed
#### Defined in
[index.ts:382](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L382)
[index.ts:701](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L701)
___
### index\_cache\_size
`Optional` **index\_cache\_size**: `number`
Cache size of the index
#### Defined in
[index.ts:750](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L750)
___
@@ -40,7 +53,7 @@ A unique name for the index
#### Defined in
[index.ts:387](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L387)
[index.ts:706](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L706)
___
@@ -52,7 +65,7 @@ The max number of iterations for kmeans training.
#### Defined in
[index.ts:402](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L402)
[index.ts:721](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L721)
___
@@ -64,7 +77,7 @@ Max number of iterations to train OPQ, if `use_opq` is true.
#### Defined in
[index.ts:421](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L421)
[index.ts:740](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L740)
___
@@ -76,7 +89,7 @@ Metric type, L2 or Cosine
#### Defined in
[index.ts:392](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L392)
[index.ts:711](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L711)
___
@@ -88,7 +101,7 @@ The number of bits to present one PQ centroid.
#### Defined in
[index.ts:416](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L416)
[index.ts:735](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L735)
___
@@ -100,7 +113,7 @@ The number of partitions this index
#### Defined in
[index.ts:397](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L397)
[index.ts:716](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L716)
___
@@ -112,7 +125,7 @@ Number of subvectors to build PQ code
#### Defined in
[index.ts:412](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L412)
[index.ts:731](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L731)
___
@@ -124,7 +137,7 @@ Replace an existing index with the same name if it exists.
#### Defined in
[index.ts:426](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L426)
[index.ts:745](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L745)
___
@@ -134,7 +147,7 @@ ___
#### Defined in
[index.ts:428](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L428)
[index.ts:752](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L752)
___
@@ -146,4 +159,4 @@ Train as optimized product quantization.
#### Defined in
[index.ts:407](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L407)
[index.ts:726](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L726)

View File

@@ -1,6 +1,6 @@
[vectordb](../README.md) / [Exports](../modules.md) / Table
# Interface: Table<T\>
# Interface: Table\<T\>
A LanceDB Table is the collection of Records. Each Record has one or more vector fields.
@@ -22,19 +22,22 @@ A LanceDB Table is the collection of Records. Each Record has one or more vector
- [countRows](Table.md#countrows)
- [createIndex](Table.md#createindex)
- [delete](Table.md#delete)
- [indexStats](Table.md#indexstats)
- [listIndices](Table.md#listindices)
- [name](Table.md#name)
- [overwrite](Table.md#overwrite)
- [search](Table.md#search)
- [update](Table.md#update)
## Properties
### add
**add**: (`data`: `Record`<`string`, `unknown`\>[]) => `Promise`<`number`\>
**add**: (`data`: `Record`\<`string`, `unknown`\>[]) => `Promise`\<`number`\>
#### Type declaration
▸ (`data`): `Promise`<`number`\>
▸ (`data`): `Promise`\<`number`\>
Insert records into this Table.
@@ -42,54 +45,50 @@ Insert records into this Table.
| Name | Type | Description |
| :------ | :------ | :------ |
| `data` | `Record`<`string`, `unknown`\>[] | Records to be inserted into the Table |
| `data` | `Record`\<`string`, `unknown`\>[] | Records to be inserted into the Table |
##### Returns
`Promise`<`number`\>
`Promise`\<`number`\>
The number of rows added to the table
#### Defined in
[index.ts:120](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L120)
[index.ts:209](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L209)
___
### countRows
**countRows**: () => `Promise`<`number`\>
**countRows**: () => `Promise`\<`number`\>
#### Type declaration
▸ (): `Promise`<`number`\>
▸ (): `Promise`\<`number`\>
Returns the number of rows in this table.
##### Returns
`Promise`<`number`\>
`Promise`\<`number`\>
#### Defined in
[index.ts:140](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L140)
[index.ts:229](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L229)
___
### createIndex
**createIndex**: (`indexParams`: [`IvfPQIndexConfig`](IvfPQIndexConfig.md)) => `Promise`<`any`\>
**createIndex**: (`indexParams`: [`IvfPQIndexConfig`](IvfPQIndexConfig.md)) => `Promise`\<`any`\>
#### Type declaration
▸ (`indexParams`): `Promise`<`any`\>
▸ (`indexParams`): `Promise`\<`any`\>
Create an ANN index on this Table vector index.
**`See`**
VectorIndexParams.
##### Parameters
| Name | Type | Description |
@@ -98,27 +97,41 @@ VectorIndexParams.
##### Returns
`Promise`<`any`\>
`Promise`\<`any`\>
**`See`**
VectorIndexParams.
#### Defined in
[index.ts:135](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L135)
[index.ts:224](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L224)
___
### delete
**delete**: (`filter`: `string`) => `Promise`<`void`\>
**delete**: (`filter`: `string`) => `Promise`\<`void`\>
#### Type declaration
▸ (`filter`): `Promise`<`void`\>
▸ (`filter`): `Promise`\<`void`\>
Delete rows from this table.
This can be used to delete a single row, many rows, all rows, or
sometimes no rows (if your predicate matches nothing).
##### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `filter` | `string` | A filter in the same format used by a sql WHERE clause. The filter must not be empty. |
##### Returns
`Promise`\<`void`\>
**`Examples`**
```ts
@@ -142,19 +155,55 @@ await tbl.delete(`id IN (${to_remove.join(",")})`)
await tbl.countRows() // Returns 1
```
#### Defined in
[index.ts:263](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L263)
___
### indexStats
**indexStats**: (`indexUuid`: `string`) => `Promise`\<[`IndexStats`](IndexStats.md)\>
#### Type declaration
▸ (`indexUuid`): `Promise`\<[`IndexStats`](IndexStats.md)\>
Get statistics about an index.
##### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `filter` | `string` | A filter in the same format used by a sql WHERE clause. The filter must not be empty. |
| Name | Type |
| :------ | :------ |
| `indexUuid` | `string` |
##### Returns
`Promise`<`void`\>
`Promise`\<[`IndexStats`](IndexStats.md)\>
#### Defined in
[index.ts:174](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L174)
[index.ts:306](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L306)
___
### listIndices
**listIndices**: () => `Promise`\<[`VectorIndex`](VectorIndex.md)[]\>
#### Type declaration
▸ (): `Promise`\<[`VectorIndex`](VectorIndex.md)[]\>
List the indicies on this table.
##### Returns
`Promise`\<[`VectorIndex`](VectorIndex.md)[]\>
#### Defined in
[index.ts:301](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L301)
___
@@ -164,17 +213,17 @@ ___
#### Defined in
[index.ts:106](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L106)
[index.ts:195](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L195)
___
### overwrite
**overwrite**: (`data`: `Record`<`string`, `unknown`\>[]) => `Promise`<`number`\>
**overwrite**: (`data`: `Record`\<`string`, `unknown`\>[]) => `Promise`\<`number`\>
#### Type declaration
▸ (`data`): `Promise`<`number`\>
▸ (`data`): `Promise`\<`number`\>
Insert records into this Table, replacing its contents.
@@ -182,27 +231,27 @@ Insert records into this Table, replacing its contents.
| Name | Type | Description |
| :------ | :------ | :------ |
| `data` | `Record`<`string`, `unknown`\>[] | Records to be inserted into the Table |
| `data` | `Record`\<`string`, `unknown`\>[] | Records to be inserted into the Table |
##### Returns
`Promise`<`number`\>
`Promise`\<`number`\>
The number of rows added to the table
#### Defined in
[index.ts:128](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L128)
[index.ts:217](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L217)
___
### search
**search**: (`query`: `T`) => [`Query`](../classes/Query.md)<`T`\>
**search**: (`query`: `T`) => [`Query`](../classes/Query.md)\<`T`\>
#### Type declaration
▸ (`query`): [`Query`](../classes/Query.md)<`T`\>
▸ (`query`): [`Query`](../classes/Query.md)\<`T`\>
Creates a search query to find the nearest neighbors of the given search term
@@ -214,8 +263,59 @@ Creates a search query to find the nearest neighbors of the given search term
##### Returns
[`Query`](../classes/Query.md)<`T`\>
[`Query`](../classes/Query.md)\<`T`\>
#### Defined in
[index.ts:112](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L112)
[index.ts:201](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L201)
___
### update
**update**: (`args`: [`UpdateArgs`](UpdateArgs.md) \| [`UpdateSqlArgs`](UpdateSqlArgs.md)) => `Promise`\<`void`\>
#### Type declaration
▸ (`args`): `Promise`\<`void`\>
Update rows in this table.
This can be used to update a single row, many rows, all rows, or
sometimes no rows (if your predicate matches nothing).
##### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `args` | [`UpdateArgs`](UpdateArgs.md) \| [`UpdateSqlArgs`](UpdateSqlArgs.md) | see [UpdateArgs](UpdateArgs.md) and [UpdateSqlArgs](UpdateSqlArgs.md) for more details |
##### Returns
`Promise`\<`void`\>
**`Examples`**
```ts
const con = await lancedb.connect("./.lancedb")
const data = [
{id: 1, vector: [3, 3], name: 'Ye'},
{id: 2, vector: [4, 4], name: 'Mike'},
];
const tbl = await con.createTable("my_table", data)
await tbl.update({
filter: "id = 2",
updates: { vector: [2, 2], name: "Michael" },
})
let results = await tbl.search([1, 1]).execute();
// Returns [
// {id: 2, vector: [2, 2], name: 'Michael'}
// {id: 1, vector: [3, 3], name: 'Ye'}
// ]
```
#### Defined in
[index.ts:296](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L296)

View File

@@ -0,0 +1,36 @@
[vectordb](../README.md) / [Exports](../modules.md) / UpdateArgs
# Interface: UpdateArgs
## Table of contents
### Properties
- [values](UpdateArgs.md#values)
- [where](UpdateArgs.md#where)
## Properties
### values
**values**: `Record`\<`string`, `Literal`\>
A key-value map of updates. The keys are the column names, and the values are the
new values to set
#### Defined in
[index.ts:320](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L320)
___
### where
`Optional` **where**: `string`
A filter in the same format used by a sql WHERE clause. The filter may be empty,
in which case all rows will be updated.
#### Defined in
[index.ts:314](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L314)

View File

@@ -0,0 +1,36 @@
[vectordb](../README.md) / [Exports](../modules.md) / UpdateSqlArgs
# Interface: UpdateSqlArgs
## Table of contents
### Properties
- [valuesSql](UpdateSqlArgs.md#valuessql)
- [where](UpdateSqlArgs.md#where)
## Properties
### valuesSql
**valuesSql**: `Record`\<`string`, `string`\>
A key-value map of updates. The keys are the column names, and the values are the
new values to set as SQL expressions.
#### Defined in
[index.ts:334](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L334)
___
### where
`Optional` **where**: `string`
A filter in the same format used by a sql WHERE clause. The filter may be empty,
in which case all rows will be updated.
#### Defined in
[index.ts:328](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L328)

View File

@@ -0,0 +1,41 @@
[vectordb](../README.md) / [Exports](../modules.md) / VectorIndex
# Interface: VectorIndex
## Table of contents
### Properties
- [columns](VectorIndex.md#columns)
- [name](VectorIndex.md#name)
- [uuid](VectorIndex.md#uuid)
## Properties
### columns
**columns**: `string`[]
#### Defined in
[index.ts:338](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L338)
___
### name
**name**: `string`
#### Defined in
[index.ts:339](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L339)
___
### uuid
**uuid**: `string`
#### Defined in
[index.ts:340](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L340)

View File

@@ -0,0 +1,27 @@
[vectordb](../README.md) / [Exports](../modules.md) / WriteOptions
# Interface: WriteOptions
Write options when creating a Table.
## Implemented by
- [`DefaultWriteOptions`](../classes/DefaultWriteOptions.md)
## Table of contents
### Properties
- [writeMode](WriteOptions.md#writemode)
## Properties
### writeMode
`Optional` **writeMode**: [`WriteMode`](../enums/WriteMode.md)
A [WriteMode](../enums/WriteMode.md) to use on this operation
#### Defined in
[index.ts:774](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L774)

View File

@@ -11,6 +11,7 @@
### Classes
- [DefaultWriteOptions](classes/DefaultWriteOptions.md)
- [LocalConnection](classes/LocalConnection.md)
- [LocalTable](classes/LocalTable.md)
- [OpenAIEmbeddingFunction](classes/OpenAIEmbeddingFunction.md)
@@ -19,11 +20,20 @@
### Interfaces
- [AwsCredentials](interfaces/AwsCredentials.md)
- [CleanupStats](interfaces/CleanupStats.md)
- [CompactionMetrics](interfaces/CompactionMetrics.md)
- [CompactionOptions](interfaces/CompactionOptions.md)
- [Connection](interfaces/Connection.md)
- [ConnectionOptions](interfaces/ConnectionOptions.md)
- [CreateTableOptions](interfaces/CreateTableOptions.md)
- [EmbeddingFunction](interfaces/EmbeddingFunction.md)
- [IndexStats](interfaces/IndexStats.md)
- [IvfPQIndexConfig](interfaces/IvfPQIndexConfig.md)
- [Table](interfaces/Table.md)
- [UpdateArgs](interfaces/UpdateArgs.md)
- [UpdateSqlArgs](interfaces/UpdateSqlArgs.md)
- [VectorIndex](interfaces/VectorIndex.md)
- [WriteOptions](interfaces/WriteOptions.md)
### Type Aliases
@@ -32,6 +42,7 @@
### Functions
- [connect](modules.md#connect)
- [isWriteOptions](modules.md#iswriteoptions)
## Type Aliases
@@ -41,13 +52,13 @@
#### Defined in
[index.ts:431](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L431)
[index.ts:755](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L755)
## Functions
### connect
**connect**(`uri`): `Promise`<[`Connection`](interfaces/Connection.md)\>
**connect**(`uri`): `Promise`\<[`Connection`](interfaces/Connection.md)\>
Connect to a LanceDB instance at the given URI
@@ -59,24 +70,44 @@ Connect to a LanceDB instance at the given URI
#### Returns
`Promise`<[`Connection`](interfaces/Connection.md)\>
`Promise`\<[`Connection`](interfaces/Connection.md)\>
#### Defined in
[index.ts:47](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L47)
[index.ts:95](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L95)
**connect**(`opts`): `Promise`<[`Connection`](interfaces/Connection.md)\>
**connect**(`opts`): `Promise`\<[`Connection`](interfaces/Connection.md)\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `opts` | `Partial`<[`ConnectionOptions`](interfaces/ConnectionOptions.md)\> |
| `opts` | `Partial`\<[`ConnectionOptions`](interfaces/ConnectionOptions.md)\> |
#### Returns
`Promise`<[`Connection`](interfaces/Connection.md)\>
`Promise`\<[`Connection`](interfaces/Connection.md)\>
#### Defined in
[index.ts:48](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L48)
[index.ts:96](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L96)
___
### isWriteOptions
**isWriteOptions**(`value`): value is WriteOptions
#### Parameters
| Name | Type |
| :------ | :------ |
| `value` | `any` |
#### Returns
value is WriteOptions
#### Defined in
[index.ts:781](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L781)

View File

@@ -118,4 +118,101 @@ However, fast vector search using indices often entails making a trade-off with
This is why it is often called **Approximate Nearest Neighbors (ANN)** search, while the Flat Search (KNN)
always returns 100% recall.
See [ANN Index](ann_indexes.md) for more details.
See [ANN Index](ann_indexes.md) for more details.
### Output formats
LanceDB returns results in many different formats commonly used in python.
Let's create a LanceDB table with a nested schema:
```python
from datetime import datetime
import lancedb
from lancedb.pydantic import LanceModel, Vector
import numpy as np
from pydantic import BaseModel
uri = "data/sample-lancedb-nested"
class Metadata(BaseModel):
source: str
timestamp: datetime
class Document(BaseModel):
content: str
meta: Metadata
class LanceSchema(LanceModel):
id: str
vector: Vector(1536)
payload: Document
# Let's add 100 sample rows to our dataset
data = [LanceSchema(
id=f"id{i}",
vector=np.random.randn(1536),
payload=Document(
content=f"document{i}", meta=Metadata(source=f"source{i%10}", timestamp=datetime.now())
),
) for i in range(100)]
tbl = db.create_table("documents", data=data)
```
#### As a pyarrow table
Using `to_arrow()` we can get the results back as a pyarrow Table.
This result table has the same columns as the LanceDB table, with
the addition of an `_distance` column for vector search or a `score`
column for full text search.
```python
tbl.search(np.random.randn(1536)).to_arrow()
```
#### As a pandas dataframe
You can also get the results as a pandas dataframe.
```python
tbl.search(np.random.randn(1536)).to_pandas()
```
While other formats like Arrow/Pydantic/Python dicts have a natural
way to handle nested schemas, pandas can only store nested data as a
python dict column, which makes it difficult to support nested references.
So for convenience, you can also tell LanceDB to flatten a nested schema
when creating the pandas dataframe.
```python
tbl.search(np.random.randn(1536)).to_pandas(flatten=True)
```
If your table has a deeply nested struct, you can control how many levels
of nesting to flatten by passing in a positive integer.
```python
tbl.search(np.random.randn(1536)).to_pandas(flatten=1)
```
#### As a list of python dicts
You can of course return results as a list of python dicts.
```python
tbl.search(np.random.randn(1536)).to_list()
```
#### As a list of pydantic models
We can add data using pydantic models, and we can certainly
retrieve results as pydantic models
```python
tbl.search(np.random.randn(1536)).to_pydantic(LanceSchema)
```
Note that in this case the extra `_distance` field is discarded since
it's not part of the LanceSchema.

View File

@@ -1,7 +1,7 @@
# SQL filters
LanceDB embraces the utilization of standard SQL expressions as predicates for hybrid
filters. It can be used during hybrid vector search and deletion operations.
filters. It can be used during hybrid vector search, update, and deletion operations.
Currently, Lance supports a growing list of expressions.

104
node/package-lock.json generated
View File

@@ -1,12 +1,12 @@
{
"name": "vectordb",
"version": "0.3.11",
"version": "0.4.0",
"lockfileVersion": 2,
"requires": true,
"packages": {
"": {
"name": "vectordb",
"version": "0.3.11",
"version": "0.4.0",
"cpu": [
"x64",
"arm64"
@@ -53,11 +53,11 @@
"uuid": "^9.0.0"
},
"optionalDependencies": {
"@lancedb/vectordb-darwin-arm64": "0.3.11",
"@lancedb/vectordb-darwin-x64": "0.3.11",
"@lancedb/vectordb-linux-arm64-gnu": "0.3.11",
"@lancedb/vectordb-linux-x64-gnu": "0.3.11",
"@lancedb/vectordb-win32-x64-msvc": "0.3.11"
"@lancedb/vectordb-darwin-arm64": "0.4.0",
"@lancedb/vectordb-darwin-x64": "0.4.0",
"@lancedb/vectordb-linux-arm64-gnu": "0.4.0",
"@lancedb/vectordb-linux-x64-gnu": "0.4.0",
"@lancedb/vectordb-win32-x64-msvc": "0.4.0"
}
},
"node_modules/@apache-arrow/ts": {
@@ -316,6 +316,66 @@
"@jridgewell/sourcemap-codec": "^1.4.10"
}
},
"node_modules/@lancedb/vectordb-darwin-arm64": {
"version": "0.4.0",
"resolved": "https://registry.npmjs.org/@lancedb/vectordb-darwin-arm64/-/vectordb-darwin-arm64-0.4.0.tgz",
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"cpu": [
"arm64"
],
"optional": true,
"os": [
"darwin"
]
},
"node_modules/@lancedb/vectordb-darwin-x64": {
"version": "0.4.0",
"resolved": "https://registry.npmjs.org/@lancedb/vectordb-darwin-x64/-/vectordb-darwin-x64-0.4.0.tgz",
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"cpu": [
"x64"
],
"optional": true,
"os": [
"darwin"
]
},
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"version": "0.4.0",
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"cpu": [
"arm64"
],
"optional": true,
"os": [
"linux"
]
},
"node_modules/@lancedb/vectordb-linux-x64-gnu": {
"version": "0.4.0",
"resolved": "https://registry.npmjs.org/@lancedb/vectordb-linux-x64-gnu/-/vectordb-linux-x64-gnu-0.4.0.tgz",
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"cpu": [
"x64"
],
"optional": true,
"os": [
"linux"
]
},
"node_modules/@lancedb/vectordb-win32-x64-msvc": {
"version": "0.4.0",
"resolved": "https://registry.npmjs.org/@lancedb/vectordb-win32-x64-msvc/-/vectordb-win32-x64-msvc-0.4.0.tgz",
"integrity": "sha512-toNcNwBRE1sdsSf5hr7W8QiqZ33csc/knVEek4CyvYkZHJGh4Z6WI+DJUIASo5wzUez4TX7qUPpRPL9HuaPMCg==",
"cpu": [
"x64"
],
"optional": true,
"os": [
"win32"
]
},
"node_modules/@neon-rs/cli": {
"version": "0.0.160",
"resolved": "https://registry.npmjs.org/@neon-rs/cli/-/cli-0.0.160.tgz",
@@ -4808,6 +4868,36 @@
"@jridgewell/sourcemap-codec": "^1.4.10"
}
},
"@lancedb/vectordb-darwin-arm64": {
"version": "0.4.0",
"resolved": "https://registry.npmjs.org/@lancedb/vectordb-darwin-arm64/-/vectordb-darwin-arm64-0.4.0.tgz",
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"optional": true
},
"@lancedb/vectordb-darwin-x64": {
"version": "0.4.0",
"resolved": "https://registry.npmjs.org/@lancedb/vectordb-darwin-x64/-/vectordb-darwin-x64-0.4.0.tgz",
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"optional": true
},
"@lancedb/vectordb-linux-arm64-gnu": {
"version": "0.4.0",
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"optional": true
},
"@lancedb/vectordb-linux-x64-gnu": {
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"optional": true
},
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"version": "0.4.0",
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"optional": true
},
"@neon-rs/cli": {
"version": "0.0.160",
"resolved": "https://registry.npmjs.org/@neon-rs/cli/-/cli-0.0.160.tgz",

View File

@@ -1,6 +1,6 @@
{
"name": "vectordb",
"version": "0.3.11",
"version": "0.4.0",
"description": " Serverless, low-latency vector database for AI applications",
"main": "dist/index.js",
"types": "dist/index.d.ts",
@@ -81,10 +81,10 @@
}
},
"optionalDependencies": {
"@lancedb/vectordb-darwin-arm64": "0.3.11",
"@lancedb/vectordb-darwin-x64": "0.3.11",
"@lancedb/vectordb-linux-arm64-gnu": "0.3.11",
"@lancedb/vectordb-linux-x64-gnu": "0.3.11",
"@lancedb/vectordb-win32-x64-msvc": "0.3.11"
"@lancedb/vectordb-darwin-arm64": "0.4.0",
"@lancedb/vectordb-darwin-x64": "0.4.0",
"@lancedb/vectordb-linux-arm64-gnu": "0.4.0",
"@lancedb/vectordb-linux-x64-gnu": "0.4.0",
"@lancedb/vectordb-win32-x64-msvc": "0.4.0"
}
}

View File

@@ -744,6 +744,11 @@ export interface IvfPQIndexConfig {
*/
replace?: boolean
/**
* Cache size of the index
*/
index_cache_size?: number
type: 'ivf_pq'
}

View File

@@ -195,6 +195,17 @@ export class RemoteTable<T = number[]> implements Table<T> {
return this._name
}
get schema (): Promise<any> {
return this._client.post(`/v1/table/${this._name}/describe/`).then(res => {
if (res.status !== 200) {
throw new Error(`Server Error, status: ${res.status}, ` +
// eslint-disable-next-line @typescript-eslint/restrict-template-expressions
`message: ${res.statusText}: ${res.data}`)
}
return res.data?.schema
})
}
search (query: T): Query<T> {
return new RemoteQuery(query, this._client, this._name)//, this._embeddings_new)
}
@@ -235,8 +246,41 @@ export class RemoteTable<T = number[]> implements Table<T> {
return data.length
}
async createIndex (indexParams: VectorIndexParams): Promise<any> {
throw new Error('Not implemented')
async createIndex (indexParams: VectorIndexParams): Promise<void> {
const unsupportedParams = [
'index_name',
'num_partitions',
'max_iters',
'use_opq',
'num_sub_vectors',
'num_bits',
'max_opq_iters',
'replace'
]
for (const param of unsupportedParams) {
// eslint-disable-next-line @typescript-eslint/strict-boolean-expressions
if (indexParams[param as keyof VectorIndexParams]) {
throw new Error(`${param} is not supported for remote connections`)
}
}
const column = indexParams.column ?? 'vector'
const indexType = 'vector' // only vector index is supported for remote connections
const metricType = indexParams.metric_type ?? 'L2'
const indexCacheSize = indexParams ?? null
const data = {
column,
index_type: indexType,
metric_type: metricType,
index_cache_size: indexCacheSize
}
const res = await this._client.post(`/v1/table/${this._name}/create_index/`, data)
if (res.status !== 200) {
throw new Error(`Server Error, status: ${res.status}, ` +
// eslint-disable-next-line @typescript-eslint/restrict-template-expressions
`message: ${res.statusText}: ${res.data}`)
}
}
async countRows (): Promise<number> {

View File

@@ -1,5 +1,5 @@
[bumpversion]
current_version = 0.3.6
current_version = 0.4.0
commit = True
message = [python] Bump version: {current_version} → {new_version}
tag = True

View File

@@ -75,8 +75,14 @@ def populate_index(index: tantivy.Index, table: LanceTable, fields: List[str]) -
The number of rows indexed
"""
# first check the fields exist and are string or large string type
nested = []
for name in fields:
f = table.schema.field(name) # raises KeyError if not found
try:
f = table.schema.field(name) # raises KeyError if not found
except KeyError:
f = resolve_path(table.schema, name)
nested.append(name)
if not pa.types.is_string(f.type) and not pa.types.is_large_string(f.type):
raise TypeError(f"Field {name} is not a string type")
@@ -85,7 +91,16 @@ def populate_index(index: tantivy.Index, table: LanceTable, fields: List[str]) -
# write data into index
dataset = table.to_lance()
row_id = 0
max_nested_level = 0
if len(nested) > 0:
max_nested_level = max([len(name.split(".")) for name in nested])
for b in dataset.to_batches(columns=fields):
if max_nested_level > 0:
b = pa.Table.from_batches([b])
for _ in range(max_nested_level - 1):
b = b.flatten()
for i in range(b.num_rows):
doc = tantivy.Document()
doc.add_integer("doc_id", row_id)
@@ -98,6 +113,30 @@ def populate_index(index: tantivy.Index, table: LanceTable, fields: List[str]) -
return row_id
def resolve_path(schema, field_name: str) -> pa.Field:
"""
Resolve a nested field path to a list of field names
Parameters
----------
field_name : str
The field name to resolve
Returns
-------
List[str]
The resolved path
"""
path = field_name.split(".")
field = schema.field(path.pop(0))
for segment in path:
if pa.types.is_struct(field.type):
field = field.type.field(segment)
else:
raise KeyError(f"field {field_name} not found in schema {schema}")
return field
def search_index(
index: tantivy.Index, query: str, limit: int = 10
) -> Tuple[Tuple[int], Tuple[float]]:

View File

@@ -185,14 +185,40 @@ class LanceQueryBuilder(ABC):
"""
return self.to_pandas()
def to_pandas(self) -> "pd.DataFrame":
def to_pandas(self, flatten: Optional[Union[int, bool]] = None) -> "pd.DataFrame":
"""
Execute the query and return the results as a pandas DataFrame.
In addition to the selected columns, LanceDB also returns a vector
and also the "_distance" column which is the distance between the query
vector and the returned vector.
Parameters
----------
flatten: Optional[Union[int, bool]]
If flatten is True, flatten all nested columns.
If flatten is an integer, flatten the nested columns up to the
specified depth.
If unspecified, do not flatten the nested columns.
"""
return self.to_arrow().to_pandas()
tbl = self.to_arrow()
if flatten is True:
while True:
tbl = tbl.flatten()
has_struct = False
# loop through all columns to check if there is any struct column
if any(pa.types.is_struct(col.type) for col in tbl.schema):
continue
else:
break
elif isinstance(flatten, int):
if flatten <= 0:
raise ValueError(
"Please specify a positive integer for flatten or the boolean value `True`"
)
while flatten > 0:
tbl = tbl.flatten()
flatten -= 1
return tbl.to_pandas()
@abstractmethod
def to_arrow(self) -> pa.Table:

View File

@@ -383,6 +383,61 @@ class Table(ABC):
"""
raise NotImplementedError
@abstractmethod
def update(
self,
where: Optional[str] = None,
values: Optional[dict] = None,
*,
values_sql: Optional[Dict[str, str]] = None,
):
"""
This can be used to update zero to all rows depending on how many
rows match the where clause. If no where clause is provided, then
all rows will be updated.
Either `values` or `values_sql` must be provided. You cannot provide
both.
Parameters
----------
where: str, optional
The SQL where clause to use when updating rows. For example, 'x = 2'
or 'x IN (1, 2, 3)'. The filter must not be empty, or it will error.
values: dict, optional
The values to update. The keys are the column names and the values
are the values to set.
values_sql: dict, optional
The values to update, expressed as SQL expression strings. These can
reference existing columns. For example, {"x": "x + 1"} will increment
the x column by 1.
Examples
--------
>>> import lancedb
>>> import pandas as pd
>>> data = pd.DataFrame({"x": [1, 2, 3], "vector": [[1, 2], [3, 4], [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]
>>> table.update(where="x = 2", values={"vector": [10, 10]})
>>> table.to_pandas()
x vector
0 1 [1.0, 2.0]
1 3 [5.0, 6.0]
2 2 [10.0, 10.0]
>>> table.update(values_sql={"x": "x + 1"})
>>> table.to_pandas()
x vector
0 2 [1.0, 2.0]
1 4 [5.0, 6.0]
2 3 [10.0, 10.0]
"""
raise NotImplementedError
class LanceTable(Table):
"""

View File

@@ -1,9 +1,9 @@
[project]
name = "lancedb"
version = "0.3.6"
version = "0.4.0"
dependencies = [
"deprecation",
"pylance==0.8.21",
"pylance==0.9.0",
"ratelimiter~=1.0",
"retry>=0.9.2",
"tqdm>=4.27.0",

View File

@@ -43,7 +43,15 @@ def table(tmp_path) -> ldb.table.LanceTable:
for _ in range(100)
]
table = db.create_table(
"test", data=pd.DataFrame({"vector": vectors, "text": text, "text2": text})
"test",
data=pd.DataFrame(
{
"vector": vectors,
"text": text,
"text2": text,
"nested": [{"text": t} for t in text],
}
),
)
return table
@@ -89,3 +97,9 @@ def test_empty_rs(tmp_path, table, mocker):
mocker.patch("lancedb.fts.search_index", return_value=([], []))
df = table.search("puppy").limit(10).to_pandas()
assert len(df) == 0
def test_nested_schema(tmp_path, table):
table.create_fts_index("nested.text")
rs = table.search("puppy").limit(10).to_list()
assert len(rs) == 10

View File

@@ -144,9 +144,13 @@ def test_add(db):
def test_add_pydantic_model(db):
# https://github.com/lancedb/lancedb/issues/562
class Metadata(BaseModel):
source: str
timestamp: datetime
class Document(BaseModel):
content: str
source: str
meta: Metadata
class LanceSchema(LanceModel):
id: str
@@ -162,13 +166,21 @@ def test_add_pydantic_model(db):
id="id",
vector=[0.0, 0.0],
li=[1, 2, 3],
payload=Document(content="foo", source="bar"),
payload=Document(
content="foo", meta=Metadata(source="bar", timestamp=datetime.now())
),
)
tbl.add([expected])
result = tbl.search([0.0, 0.0]).limit(1).to_pydantic(LanceSchema)[0]
assert result == expected
flattened = tbl.search([0.0, 0.0]).limit(1).to_pandas(flatten=1)
assert len(flattened.columns) == 6 # _distance is automatically added
really_flattened = tbl.search([0.0, 0.0]).limit(1).to_pandas(flatten=True)
assert len(really_flattened.columns) == 7
def _add(table, schema):
# table = LanceTable(db, "test")

View File

@@ -1,6 +1,6 @@
[package]
name = "vectordb-node"
version = "0.3.11"
version = "0.4.0"
description = "Serverless, low-latency vector database for AI applications"
license = "Apache-2.0"
edition = "2018"

View File

@@ -1,6 +1,6 @@
[package]
name = "vectordb"
version = "0.3.11"
version = "0.4.0"
edition = "2021"
description = "LanceDB: A serverless, low-latency vector database for AI applications"
license = "Apache-2.0"