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https://issues.apache.org/jira/browse/IMPALA-12018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17805757#comment-17805757
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ASF subversion and git services commented on IMPALA-12018:
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Commit a2b8aed2c2d4c1bb25ed9626a2b014b79ec741ad in impala's branch
refs/heads/master from Riza Suminto
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=a2b8aed2c ]
IMPALA-12702: Show reduced cardinality estimation in ExecSummary
In the query profile, cardinality reduction from IMPALA-12018 is
highlighted in Plan section, but missing out from ExecSummary section.
This patch changes the ExecSummary to show the reduced cardinality
estimation if it set.
Testing:
- Add TestObservability::test_reduced_cardinality_by_filter
Change-Id: If1f51ce585a1cb66e518b725686ab3076ffa8168
Reviewed-on: http://gerrit.cloudera.org:8080/20879
Reviewed-by: Wenzhe Zhou <[email protected]>
Tested-by: Impala Public Jenkins <[email protected]>
> Consider runtime filters in resource estimates
> ----------------------------------------------
>
> Key: IMPALA-12018
> URL: https://issues.apache.org/jira/browse/IMPALA-12018
> Project: IMPALA
> Issue Type: Improvement
> Components: Frontend
> Reporter: Csaba Ringhofer
> Assignee: Riza Suminto
> Priority: Major
> Fix For: Impala 4.4.0
>
>
> Currently Impala creates a plan first and looks for runtime filters bases on
> the complete plan.
> IMPALA-3573 is about considering runtime filters during join ordering which
> would be a major change. Meanwhile it could be also useful to consider
> selective looking runtime filters in resource estimates without changing the
> plan topology.
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