Hello 2013/6/19 sachin kotwal <kotsac...@gmail.com>: > While migrating my application from DB2 to PostgreSQL. > > I want to migrate ROLLUP() function in PostgreSQL. > > Example: > SELECT WEEK(SALES_DATE) AS WEEK, > DAYOFWEEK(SALES_DATE) AS DAY_WEEK, > SUM(SALES) AS UNITS_SOLD > FROM SALES > GROUP BY ROLLUP ( WEEK(SALES_DATE), DAYOFWEEK(SALES_DATE) ) > ORDER BY WEEK, DAY_WEEK > > This example shows two simple ROLLUP queries followed by a query which > treats the two ROLLUPs as grouping sets in a single result set and specifies > row ordering for each column involved in the grouping sets. > > How can I migrate ROLLUP() function in PostgreSQL? or is there any similar > function in PostgreSQL which can done this job?
this functionality is not supported you should to rewrite query SELECT .. FROM GROUP BY weeks(sales_date), dayofweek(salesdate) UNION ALL SELECT ... FROM .. GROUP BY dayofweek(salesdate) ORDER BY .. Regards Pavel Stehule > > > > -- > View this message in context: > http://postgresql.1045698.n5.nabble.com/Migration-from-DB2-to-PostgreSQL-ROLLUP-tp5759825.html > Sent from the PostgreSQL - general mailing list archive at Nabble.com. > > > -- > Sent via pgsql-general mailing list (pgsql-general@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-general -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
