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feat: support to build FTS without positions (#1621)

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BubbleCal
2024-09-10 22:51:32 +08:00
committed by GitHub
parent a405847f9b
commit 2bde5401eb
11 changed files with 150 additions and 25 deletions
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17
nodejs/lancedb/indices.ts
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@@ -113,6 +113,19 @@ export interface IvfPqOptions {
sampleRate?: number;
}
/**
* Options to create a full text search index
*/
export interface FtsOptions {
/**
* Whether to build the index with positions.
* True by default.
* If set to false, the index will not store the positions of the tokens in the text,
* which will make the index smaller and faster to build, but will not support phrase queries.
*/
withPositions?: boolean;
}
export class Index {
private readonly inner: LanceDbIndex;
private constructor(inner: LanceDbIndex) {
@@ -211,8 +224,8 @@ export class Index {
*
* For now, the full text search index only supports English, and doesn't support phrase search.
*/
static fts() {
return new Index(LanceDbIndex.fts());
static fts(options?: Partial<FtsOptions>) {
return new Index(LanceDbIndex.fts(options?.withPositions));
}
}