SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier tab2
   ExpressionList (children 2)
    OrderByElement (children 1)
     Function toTimeZone (children 1)
      ExpressionList (children 2)
       Function toTimezone (children 1)
        ExpressionList (children 2)
         Identifier x
         Literal \'UTC\'
       Literal \'CET\'
    OrderByElement (children 1)
     Function intDiv (children 1)
      ExpressionList (children 2)
       Function intDiv (children 1)
        ExpressionList (children 2)
         Identifier y
         Literal Int64_-2
       Literal Int64_-3
