nextcloud / server

	 *

	 * @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.

	 */

	public function select($select = null) {

		$selects = is_array($select) ? $select : func_get_args();

		$this->queryBuilder->select(

			$this->helper->quoteColumnNames($selects)

		);

		return $this;

	}

	/**

	 * Specifies an item that is to be returned with a different name in the query result.

	 *

	 * @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.

	 */

	public function addSelect($select = null) {

		$selects = is_array($select) ? $select : func_get_args();

		$this->queryBuilder->addSelect(

			$this->helper->quoteColumnNames($selects)

		);

		return $this;

	}

	/**

	 * Turns the query being built into a bulk delete query that ranges over

	 *

	 * @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.

	 */

	public function groupBy($groupBy) {

		$groupBys = is_array($groupBy) ? $groupBy : func_get_args();

		call_user_func_array(

			[$this->queryBuilder, 'groupBy'],

			$this->helper->quoteColumnNames($groupBys)

		);

		return $this;

	}

	/**

	 * Adds a grouping expression to the query.

	 *

	 * @return \OCP\DB\QueryBuilder\IQueryBuilder This QueryBuilder instance.

	 */

	public function addGroupBy($groupBy) {

		$groupBys = is_array($groupBy) ? $groupBy : func_get_args();

		call_user_func_array(

			[$this->queryBuilder, 'addGroupBy'],

			$this->helper->quoteColumnNames($groupBys)

		);

		return $this;

	}

	/**

	 * Sets a value for a column in an insert query.