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hejian edited comment on KYLIN-3967 at 4/30/19 9:40 AM: -------------------------------------------------------- thanks [~Shaofengshi], i set the column from the look up table as a normal dimension and it works fine, and does the cube need rebuild when the lookup table changed in this case? BTW, have a look at KYLIN-3319 if you are free. was (Author: hejian999): yes, i set the column from the look up table as a normal dimension and it works fine, thanks Shaofeng > sum along with case expression does not work in query > ----------------------------------------------------- > > Key: KYLIN-3967 > URL: https://issues.apache.org/jira/browse/KYLIN-3967 > Project: Kylin > Issue Type: Bug > Components: Query Engine > Reporter: Gladson Vas > Priority: Blocker > Attachments: notworkingcase.jpg, workingcase.jpg > > > When i try to run a query with a sum case expression combination, > eg: select sum(case when col1<0 then 0 else col1 end ) from table > i get the following error: > No realization found for OLAPContext, CUBE_UNMATCHED_AGGREGATION[FunctionDesc > [expression=SUM, parameter=CASE(<($8, 0), 0, $8), returnType=null]], > rel#36838:OLAPTableScan.OLAP.[](table=[DEFAULT, table],ctx=,fields=[0, 1, 2, > 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, > 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, > 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, > 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, > 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, > 100, 101, 102, 103, 104, 105, 106]) while executing SQL: "select sum (case > when col1 <0 then 0 else col1 end ) from table LIMIT 50000" > > is there any way to support this sum case expression in the query engine? > Also I get the same error when the sum operation is done on a column derived > from a case expression in a subquery. > eg: select sum(a.col1) from (select case when col1<0 then 0 else col1 end as > col1 from table) a > Thanks, > Gladson > -- This message was sent by Atlassian JIRA (v7.6.3#76005)