Justin,
Thank you for you reply.
Now we have SAP HANA 70 revision.
SELECT COUNT(CARDNUMBER),SHOPNAME
FROM (
SELECT COUNT(*) AS "Quantity"
,O.CARDNUMBER
,O.SHOPNAME
FROM OLAPFACTS O
INNER JOIN OLAP_DATE OD ON O.DATEEXT = OD.DATEID
WHERE OD.DATEVALUE BETWEEN '2013-07-15'
AND ADD_DAYS('2013-07-15', 29)
AND O.CARDTYPE = 1
GROUP BY O.CARDNUMBER, O.SHOPNAME
)
GROUP BY SHOPNAME
order by shopname
This query work 40 seconds and give the same results as a query in my first post. But what is the cause of poor performance COUNT(DISTINCT) combination?
