Guoliang Sun created KYLIN-6044:
-----------------------------------
Summary: Subqueries containing JOIN may lead to incorrect query
results
Key: KYLIN-6044
URL: https://issues.apache.org/jira/browse/KYLIN-6044
Project: Kylin
Issue Type: Bug
Affects Versions: 5.0.0
Reporter: Guoliang Sun
It was discovered that a specific SQL query hits inconsistent indexes in a
particular version compared to earlier versions. Further simplification of the
SQL revealed that this issue might lead to incorrect query results.
{code:java}
SELECT count(1)
FROM (
SELECT 1
FROM (
SELECT sum(D_YEAR) as acct_bal_CURR
,1 AS DT
FROM SSB.DATES
) a
left JOIN (
SELECT sum(D_YEARMONTHNUM) acct_id_CURR
,1 AS DT
FROM SSB.DATES
) b ON a.DT = b.DT
)
LIMIT 500{code}
The model contains two SUM metrics from the SQL, and the correct query result
should be 1.
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