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https://issues.apache.org/jira/browse/HIVE-6395?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Szehon Ho updated HIVE-6395:
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Attachment: test.py
> multi-table insert from select transform fails if optimize.ppd enabled
> ----------------------------------------------------------------------
>
> Key: HIVE-6395
> URL: https://issues.apache.org/jira/browse/HIVE-6395
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Szehon Ho
> Attachments: test.py
>
>
> {code}
> set hive.optimize.ppd=true;
> add file ./test.py;
> from (select transform(test.*) using 'python ./test.py'
> as id,name,state from test) t0
> insert overwrite table test2 select * where state=1
> insert overwrite table test3 select * where state=2;
> {code}
> In the above example, the select transform returns an extra column, and that
> column is used in where clause of the multi-insert selects. However, if
> optimize is on, the query plan is wrong:
> filter (state=1 and state=2) //impossible
> --> select, insert into test1
> --> select, insert into test2
> The correct query plan for hive.optimize.ppd=false is:
> filter (state=1)
> --> select, insert into test1
> filter (state=2)
> --> select, insert into test2
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