Method createIndex

packages/db/src/collection/index.ts:598–603

* Creates an index on a collection for faster queries. * Indexes significantly improve query performance by allowing constant time lookups * and logarithmic time range queries instead of full scans. * * @param indexCallback - Function that extracts the indexed value from each item * @

(
    indexCallback: (row: SingleRowRefProxy<TOutput>) => any,
    config: IndexOptions<TIndexType> = {},
  )

   * ```
   */
  public createIndex<TIndexType extends IndexConstructor<TKey>>(
    indexCallback: (row: SingleRowRefProxy<TOutput>) => any,
    config: IndexOptions<TIndexType> = {},
  ): BaseIndex<TKey> {
    return this._indexes.createIndex(indexCallback, config)
  }

  /**
   * Removes an index created with createIndex.