SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 1) ExpressionList (children 1) Function age (children 1) ExpressionList (children 3) Literal \'month\' Function toDateTime (children 1) ExpressionList (children 2) Literal \'2014-10-26 00:00:00\' Literal \'Asia/Istanbul\' Function toDateTime (children 1) ExpressionList (children 2) Literal \'2014-10-27 00:00:00\' Literal \'Asia/Istanbul\'