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https://issues.apache.org/jira/browse/HIVE-413?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12699234#action_12699234
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Namit Jain commented on HIVE-413:
---------------------------------
The above approach will not work, as in case of sub-queries there are no topOps
to start with.
A simpler solution is to pass the reduce sink operator and use that to perform
setKeyAndValueDesc()
> multi-table insert
> ------------------
>
> Key: HIVE-413
> URL: https://issues.apache.org/jira/browse/HIVE-413
> Project: Hadoop Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Namit Jain
> Assignee: Namit Jain
> Priority: Critical
> Attachments: hive.413.1.patch
>
>
> some problem in multi-table insert if both of them contain grouping keys
> which are different.
> have not marked it a blocker, since a workaround exists (issue both inserts
> separately) - but this if the release is not yet done, we should fix this
> also.
> FROM SRC
> INSERT OVERWRITE TABLE DEST1 SELECT SRC.key, src.value, COUNT(DISTINCT
> SUBSTR(SRC.value,5)) GROUP BY SRC.key\
> , src.value
> INSERT OVERWRITE TABLE DEST2 SELECT SRC.key, COUNT(DISTINCT
> SUBSTR(SRC.value,5)) GROUP BY SRC.key;
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