SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Identifier c2
    Function groupArray (alias res) (children 1)
     ExpressionList (children 1)
      Identifier c2
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test_window_collate
   ExpressionList (children 1)
    OrderByElement (children 2)
     Identifier c2
     Literal \'zh_Hans_CN\'
