Method getOrCreateLanceTable

core/indexing/docs/DocsService.ts:1071–1116

({
    initializationVector,
    startUrl,
  }: {
    initializationVector: number[];
    startUrl: string;
  })

  }

  private async getOrCreateLanceTable({
    initializationVector,
    startUrl,
  }: {
    initializationVector: number[];
    startUrl: string;
  }) {
    const lance = await this.initLanceDb();
    if (!lance) {
      throw new Error("LanceDB not available on this platform");
    }

    const conn = await lance.connect(getLanceDbPath());
    const tableNames = await conn.tableNames();
    const { provider } = await this.getEmbeddingsProvider();

    if (!provider) {
      throw new Error(
        "Could not retrieve @docs Lance Table: no embeddings provider specified",
      );
    }

    const tableNameFromEmbeddingsProvider =
      await this.getLanceTableName(provider);

    if (!tableNames.includes(tableNameFromEmbeddingsProvider)) {
      if (initializationVector) {
        await this.createLanceDocsTable(
          conn,
          initializationVector,
          tableNameFromEmbeddingsProvider,
        );
      } else {
        console.trace(
          "No existing Lance DB docs table was found and no initialization " +
            "vector was passed to create one",
        );
      }
    }

    const table = await conn.openTable(tableNameFromEmbeddingsProvider);

    this.lanceTableNamesSet.add(tableNameFromEmbeddingsProvider);

    return table;
  }

  // Methods for adding individual docs
  private async addToLance({