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https://issues.apache.org/jira/browse/KYLIN-3476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16570217#comment-16570217
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ASF subversion and git services commented on KYLIN-3476:
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Commit b938a1c53e5b5e894b9ca0cd6c6b3b757bdeca6a in kylin's branch
refs/heads/KYLIN-3476 from Zhong
[ https://gitbox.apache.org/repos/asf?p=kylin.git;h=b938a1c ]
KYLIN-3476 fix TupleExpression verification when parsing sql
Signed-off-by: shaofengshi <shaofeng...@apache.org>
> Fix TupleExpression verification when parsing sql
> -------------------------------------------------
>
> Key: KYLIN-3476
> URL: https://issues.apache.org/jira/browse/KYLIN-3476
> Project: Kylin
> Issue Type: Bug
> Affects Versions: v2.4.0
> Reporter: Zhong Yanghong
> Assignee: Zhong Yanghong
> Priority: Major
> Fix For: v2.4.1, v2.5.0
>
> Attachments: APACHE-KYLIN-3476.patch, b134-12adb0383568.png,
> image-2018-08-06-17-58-18-760.png
>
>
> Previously there's a validation check for sql, since dynamic column does not
> support {{sum(col1/col2)}}. However, if the sql has a subquery and
> {{sum(col1/col2)}} is in the main query rather than the sub-query, this
> should be OK. One example is as follows:
> {code}
> select T1.D1, sum(T1.gmv/T2.gmv)
> from
> (select D1, D2, sum(M1) as gmv
> from T
> group by D1, D2) T1
> inner join
> (select D1, D2, sum(M2) as gmv
> from T
> group by D1, D2) T2
> on T1.D1 = T2.D1
> group by T1.D1
> {code}
> Since the outside {{sum(T1.gmv/T2.gmv)}} is handled by calcite rather than
> Kylin, it's OK and should not go through the verification.
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