Method when

packages/db/src/clickhouse/query-builder.ts:588–593

(condition: boolean, callback?: ConditionalCallback)

  // Add method for callback-style conditionals
  when(condition: boolean, callback?: ConditionalCallback): this {
    if (condition && callback) {
      callback(this);
    }
    return this;
  }

  clone(): Query<T> {
    return new Query(this.client, this.timezone).merge(this);