Method union

packages/sql/src/query/QueryBuilder.ts:2767–2769

* Combines the current query with one or more other queries using `UNION` (with deduplication). * All queries must select the same columns. Returns a `QueryBuilder` that * can be used with `$in`, passed to `qb.from()`, or converted via `.getQuery()`, * `.getParams()`, `.toQuery()`, `.toRaw(

(...others: (QueryBuilder<any> | NativeQueryBuilder)[])

   * ```
   */
  union(...others: (QueryBuilder<any> | NativeQueryBuilder)[]): QueryBuilder<Entity> {
    return this.buildUnionQuery('union', others);
  }

  private buildUnionQuery(
    separator: 'union' | 'union all',