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Posted to issues@kylin.apache.org by "zhimin wu (Jira)" <ji...@apache.org> on 2021/07/02 13:49:00 UTC
[jira] [Commented] (KYLIN-5025) when filter is a derived column
equals another column query failed
[ https://issues.apache.org/jira/browse/KYLIN-5025?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17373549#comment-17373549 ]
zhimin wu commented on KYLIN-5025:
----------------------------------
I found this problem when fix https://issues.apache.org/jira/browse/KYLIN-4969.
> when filter is a derived column equals another column query failed
> ------------------------------------------------------------------
>
> Key: KYLIN-5025
> URL: https://issues.apache.org/jira/browse/KYLIN-5025
> Project: Kylin
> Issue Type: Bug
> Components: Query Engine
> Reporter: zhimin wu
> Assignee: zhimin wu
> Priority: Major
> Attachments: image-2021-07-02-21-41-15-854.png
>
>
> Just use the following SQL query to learn_kylin.
> h6. SELECT
> count(*)
> FROM KYLIN_SALES as KYLIN_SALES
> INNER JOIN KYLIN_CAL_DT as KYLIN_CAL_DT
> ON KYLIN_SALES.PART_DT = KYLIN_CAL_DT.CAL_DT
> WHERE KYLIN_SALES.PART_DT = KYLIN_CAL_DT.MONTH_BEG_DT
> that was OK, but if you put the derived column to the left of the filter like the following SQL, query failed.
> h6. SELECT
> count(*)
> FROM KYLIN_SALES as KYLIN_SALES
> INNER JOIN KYLIN_CAL_DT as KYLIN_CAL_DT
> ON KYLIN_SALES.PART_DT = KYLIN_CAL_DT.CAL_DT
> WHERE KYLIN_CAL_DT.MONTH_BEG_DT = KYLIN_SALES.PART_DT
> {{!image-2021-07-02-21-41-15-854.png|width=618,height=271!}}
>
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