src/traits/class-groupby.php
public function having( $column, $param1 = null, $param2 = null ) {
		$this->statements['having'] = $this->generateWhere( $column, $param1, $param2, 'having' );

		return $this;
	}
public function having( $column, $param1 = null, $param2 = null ) {
		$this->statements['having'] = $this->generateWhere( $column, $param1, $param2, 'having' );

		return $this;
	}
Generate Having clause

@param string $column The SQL column.
@param mixed  $param1 Operator or value depending if $param2 isset.
@param mixed  $param2 The value if $param1 is an operator.

@return self The current query builder.