SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function groupBitmapXor (children 1)
     ExpressionList (children 1)
      Identifier z
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier bitmap_column_expr_test2
   Function like (children 1)
    ExpressionList (children 2)
     Identifier tag_id
     Literal \'tag%\'