SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 3)
    Function toDateTime (alias x) (children 1)
     ExpressionList (children 2)
      Literal \'2000-01-01 00:00:00\'
      Literal \'Asia/Istanbul\'
    Function toDate (alias y) (children 1)
     ExpressionList (children 1)
      Literal \'2000-01-02\'
    Function if (alias z) (children 1)
     ExpressionList (children 3)
      Function greater (children 1)
       ExpressionList (children 2)
        Identifier x
        Identifier y
      Identifier x
      Identifier y