Dong Li created KYLIN-2313:
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Summary: Cannot find a cube in a subquery case with count distinct
Key: KYLIN-2313
URL: https://issues.apache.org/jira/browse/KYLIN-2313
Project: Kylin
Issue Type: Bug
Components: Query Engine
Affects Versions: v1.6.0
Reporter: Dong Li
Assignee: liyang
Priority: Minor
With sample cube,
The first query can find a cube and give correct result:
select p.part_dt, p.lstg_site_id, p.grp, count(distinct user_id), sum(price)
from (
select t.part_dt, t.lstg_site_id, t.user_id, t.price,
case t.lstg_format_name when 'ABIN' then 'AAA' when 'BBIN' then 'BBB' else
'CCC' end as grp from kylin_sales t) p
group by p.part_dt, p.lstg_site_id, p.grp
The second query will throw exception: cannot find any realization:
select p.part_dt, p.lstg_site_id, p.grp, count(distinct user_id), sum(price)
from (
select t.part_dt, t.lstg_site_id, t.user_id, t.price,
case t.lstg_format_name when 'ABIN' then 'AAA'
when 'BBIN' then 'BBB'
else 'CCC' end as grp
from kylin_sales t
) p
where p.part_dt='2013-01-01'
group by p.part_dt, p.lstg_site_id, p.grp
Error message:
Error while executing SQL "select p.part_dt, p.lstg_site_id, p.grp,
count(distinct user_id), sum(price) from ( select t.part_dt, t.lstg_site_id,
t.user_id, t.price, case t.lstg_format_name when 'ABIN' then 'AAA' when 'BBIN'
then 'BBB' else 'CCC' end as grp from kylin_sales t ) p where
p.part_dt='2013-01-01' group by p.part_dt, p.lstg_site_id, p.grp LIMIT 50000":
Can't find any realization. Please confirm with providers. SQL digest: fact
table DEFAULT.KYLIN_SALES,group by [DEFAULT.KYLIN_SALES.PART_DT,
DEFAULT.KYLIN_SALES.LSTG_SITE_ID,
UNKNOWN_MODEL:DEFAULT._KYLIN_TABLE.GRP],filter on
[DEFAULT.KYLIN_SALES.PART_DT],with aggregates[FunctionDesc
[expression=COUNT_DISTINCT, parameter=ParameterDesc [type=column,
value=USER_ID, nextParam=null], returnType=null], FunctionDesc [expression=SUM,
parameter=ParameterDesc [type=column, value=PRICE, nextParam=null],
returnType=null]].
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