Hi,
I am using 2.6.1 version.
Thanks,
JK
From: ShaoFeng Shi <[email protected]>
Sent: 25 April 2019 12:32
To: user <[email protected]>
Subject: Re: SUM on CASE not working
What's your Kylin version? Kylin 2.4 and above should already support this.
Best regards,
Shaofeng Shi 史少锋
Apache Kylin PMC
Email: [email protected]<mailto:[email protected]>
Apache Kylin FAQ: https://kylin.apache.org/docs/gettingstarted/faq.html
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Jayakumar Balasubramanya
<[email protected]<mailto:[email protected]>> 于2019年4月25日周四
下午1:42写道：
Hi,
I am facing a specific limitation when trying to roll-up a
metric conditionally. We are using case statement to either choose the metric
or 0 and then doing a SUM on top of it. The condition is set on a dimension
which is part of the cube. Getting an exception as stated below.
Query Not working:
Select Sum(Case when cyc_xxx_cyclesdelinquent>=2 THEN CYC_XXX_BALANCEADB ELSE 0
end) from fct_profit_table_monthly
group by cyc_xxx_cyclesdelinquent
This is the exception for it:
No realization found for OLAPContext, CUBE_UNMATCHED_AGGREGATION[FunctionDesc
[expression=SUM, parameter=CASE(>=($9, 2), CAST($4):DECIMAL(14, 4), 0),
returnType=null]], rel#1153:OLAPTableScan.OLAP.[](table=[DEFAULT,
FCT_PROFIT_TABLE_MONTHLY],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])
while executing SQL: "Select Sum(Case when cyc_xxx_cyclesdelinquent>=2 THEN
CYC_XXX_BALANCEADB ELSE 0 end) from fct_profit_table_monthly group by
cyc_xxx_cyclesdelinquent LIMIT 50000"
This one works on Kylin:
SELECT CASE WHEN cyc_xxx_cyclesdelinquent>=2 THEN delinquent_bal ELSE 0 END
FROM (Select SUM(Cyc_xxx_BalanceAdb) as delinquent_bal,
cyc_xxx_cyclesdelinquent from fct_profit_table_monthly
group by cyc_xxx_cyclesdelinquent)
Regards,
JK
