SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 3)
    Identifier t1.k
    Identifier t1.a
    Identifier t2.x
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier tp1 (alias t1)
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier tp2 (alias t2)
     TableJoin (children 1)
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier t1.k
        Identifier t2.k
   Function or (children 1)
    ExpressionList (children 2)
     Function in (children 1)
      ExpressionList (children 2)
       Identifier t1.k
       Literal Tuple_(UInt64_1, UInt64_2)
     Function in (children 1)
      ExpressionList (children 2)
       Identifier t1.k
       Literal Tuple_(UInt64_3, UInt64_4)
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier t1.k
