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https://issues.apache.org/jira/browse/HIVE-2340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13624131#comment-13624131
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Harish Butani commented on HIVE-2340:
-------------------------------------
The problem with PTF is in plan generation. In
SemanticAnalyzer::genReduceSinkPlanForWindowing line 10778, we are setting the
RowSchema of the ReduceSinkOp that precedes a PTF to be the same one as the Op
that precedes it. In the e.g. that was failing the preceding Op was another
PTFOp. The fix is to set both the RowSchema and RowResolver by not pointing to
the 'input' Op's structures(same issue in genPTFPlanForComponentQuery). Will
fix in the separate Jira. Will add back
'schema.getSignature().remove(colInfo);' to ColumnPrunerProcFactory. Sorry
about this.
> optimize orderby followed by a groupby
> --------------------------------------
>
> Key: HIVE-2340
> URL: https://issues.apache.org/jira/browse/HIVE-2340
> Project: Hive
> Issue Type: Sub-task
> Components: Query Processor
> Reporter: Navis
> Assignee: Navis
> Priority: Minor
> Labels: perfomance
> Attachments: ASF.LICENSE.NOT.GRANTED--HIVE-2340.D1209.1.patch,
> ASF.LICENSE.NOT.GRANTED--HIVE-2340.D1209.2.patch,
> ASF.LICENSE.NOT.GRANTED--HIVE-2340.D1209.3.patch,
> ASF.LICENSE.NOT.GRANTED--HIVE-2340.D1209.4.patch,
> ASF.LICENSE.NOT.GRANTED--HIVE-2340.D1209.5.patch, HIVE-2340.12.patch,
> HIVE-2340.13.patch, HIVE-2340.14.patch,
> HIVE-2340.14.rebased_and_schema_clone.patch, HIVE-2340.1.patch.txt,
> HIVE-2340.D1209.10.patch, HIVE-2340.D1209.11.patch, HIVE-2340.D1209.12.patch,
> HIVE-2340.D1209.13.patch, HIVE-2340.D1209.14.patch, HIVE-2340.D1209.15.patch,
> HIVE-2340.D1209.6.patch, HIVE-2340.D1209.7.patch, HIVE-2340.D1209.8.patch,
> HIVE-2340.D1209.9.patch, testclidriver.txt
>
>
> Before implementing optimizer for JOIN-GBY, try to implement RS-GBY
> optimizer(cluster-by following group-by).
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