SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function arrayMap (children 1)
     ExpressionList (children 2)
      Function lambda (alias lambda) (children 1)
       ExpressionList (children 2)
        Function tuple (children 1)
         ExpressionList (children 1)
          Identifier x
        Function concat (children 1)
         ExpressionList (children 2)
          Function concat (children 1)
           ExpressionList (children 2)
            Function toString (children 1)
             ExpressionList (children 1)
              Identifier x
            Literal \'_\'
          Function toString (children 1)
           ExpressionList (children 1)
            Identifier id
      Literal Array_[UInt64_1, UInt64_2, UInt64_3]
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test_table