[
https://issues.apache.org/jira/browse/HIVE-26618?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Stamatis Zampetakis updated HIVE-26618:
---------------------------------------
Fix Version/s: (was: 4.0.0)
(was: 4.0.0-alpha-2)
I cleared the fixVersion field since this ticket is still open. Please review
this ticket and if the fix is already committed to a specific version please
set the version accordingly and mark the ticket as RESOLVED.
According to the [JIRA
guidelines|https://cwiki.apache.org/confluence/display/Hive/HowToContribute]
the fixVersion should be set only when the issue is resolved/closed.
> Add setting to turn on/off removing sections of a query plan known never
> produces rows
> --------------------------------------------------------------------------------------
>
> Key: HIVE-26618
> URL: https://issues.apache.org/jira/browse/HIVE-26618
> Project: Hive
> Issue Type: Improvement
> Components: CBO
> Reporter: Krisztian Kasa
> Assignee: Krisztian Kasa
> Priority: Major
> Labels: pull-request-available
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> HIVE-26524 introduced an optimization to remove sections of query plan known
> never produces rows.
> Add a setting into hive conf to turn on/off this optimization.
> When the optimization is turned off restore the legacy behavior:
> * represent empty result operator with {{HiveSortLimit}} 0
> * disable {{HiveRemoveEmptySingleRules}}
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
