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https://issues.apache.org/jira/browse/KYLIN-6044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17930137#comment-17930137
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ASF subversion and git services commented on KYLIN-6044:
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Commit a03fbf8e7eb1b438b921aec9eb92aed8b8ac4075 in kylin's branch
refs/heads/kylin5 from Guoliang Sun
[ https://gitbox.apache.org/repos/asf?p=kylin.git;h=a03fbf8e7e ]
KYLIN-6044 Removed ProjectAggregateMergeRule to avoid aggregate index mismatches
> 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
> Priority: Major
>
> 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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