SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function length (children 1)
     ExpressionList (children 1)
      Function groupUniqArrayMerge (children 1)
       ExpressionList (children 1)
        Identifier ds
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 3)
          ExpressionList (children 2)
           Identifier k
           Function groupUniqArrayState (alias ds) (children 1)
            ExpressionList (children 1)
             Identifier d
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier arena
          ExpressionList (children 1)
           Identifier k
   ExpressionList (children 1)
    Identifier k
