SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 2)
    Function sum (children 1)
     ExpressionList (children 1)
      Identifier value
    Identifier _table
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function merge (children 1)
       ExpressionList (children 2)
        Function currentDatabase (children 1)
         ExpressionList
        Literal \'test_local_1|test_local_2\'
   ExpressionList (children 1)
    Identifier _table
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier _table