SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Function arrayElementOrNull (children 1)
     ExpressionList (children 2)
      Identifier m1
      Function CAST (children 1)
       ExpressionList (children 2)
        Literal \'aaa\'
        Literal \'FixedString(3)\'
    Function arrayElementOrNull (children 1)
     ExpressionList (children 2)
      Identifier m2
      Function CAST (children 1)
       ExpressionList (children 2)
        Literal \'aaa\'
        Literal \'FixedString(3)\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t_map_03240
