Drill Down with Union ALL in a query

Question

Why when i use a UNION ALL in a query or some sentences of SQL the drilldown disappears ? Does exists a special syntax ??
A query example:
SELECT DISTINCT CASE T0.[ObjType] WHEN '13' THEN 'Factura' WHEN '203' THEN 'F. Anticipo' END AS Documento, T0.[DocNum] AS NumDocumento, T0.[DocDate] AS Fecha, T0.[NumAtCard] AS Referencia, T2.[DocNum] AS 'Ref NC', 
T0.[DocTotal] AS TotalMN, T0.[DocTotalFC] AS TotalME, CASE T1.[TaxCode]
WHEN 'A2' THEN '15'
WHEN 'A1' THEN '10'
WHEN 'A0' THEN '0'
END AS '%IVA', T0.[DocRate] AS TC FROM OINV T0  INNER JOIN INV1 T1 ON T0.DocEntry = T1.DocEntry  LEFT JOIN ORIN T2 ON T1.TrgetEntry =  T2.DocEntry
UNION ALL
SELECT DISTINCT CASE T0.[ObjType] WHEN '13' THEN 'Factura' WHEN '203' THEN 'F. Anticipo' END AS Documento, T0.[DocNum] AS NumDocumento, T0.[DocDate] AS Fecha, T0.[NumAtCard] AS Referencia, T2.[DocNum] AS 'Ref NC', 
T0.[DocTotal] AS TotalMN, T0.[DocTotalFC] AS TotalME, CASE T1.[TaxCode]
WHEN 'A2' THEN '15'
WHEN 'A1' THEN '10'
WHEN 'A0' THEN '0'
END AS '%IVA', T0.[DocRate] AS TC FROM ODPI T0  INNER JOIN DPI1 T1 ON T0.DocEntry = T1.DocEntry  LEFT JOIN ORIN T2 ON T1.TrgetEntry =  T2.DocEntry

Answer 1

Carlos
When you use the Union Clause you will not get the Drill Down link button.  You may try creating a view of your Query and then Create a new Query in SAP joining the View and the SAP table containing the link data to get the links.
Suda