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Posted to issues-all@impala.apache.org by "Tim Armstrong (JIRA)" <ji...@apache.org> on 2018/07/05 18:01:00 UTC
[jira] [Updated] (IMPALA-3430) Runtime filter : Extend runtime
filter to support Min/Max values for HDFS scans
[ https://issues.apache.org/jira/browse/IMPALA-3430?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tim Armstrong updated IMPALA-3430:
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Summary: Runtime filter : Extend runtime filter to support Min/Max values for HDFS scans (was: Runtime filter : Extend runtime filter to support Min/Max values)
> Runtime filter : Extend runtime filter to support Min/Max values for HDFS scans
> -------------------------------------------------------------------------------
>
> Key: IMPALA-3430
> URL: https://issues.apache.org/jira/browse/IMPALA-3430
> Project: IMPALA
> Issue Type: New Feature
> Components: Backend
> Affects Versions: Impala 2.6.0
> Reporter: Mostafa Mokhtar
> Priority: Minor
> Labels: performance, runtime-filters
>
> Annotating Runtime filters with Min/Max values can help with
> * Inequality joins
> * Pushing more efficient filters to the scan
> * Used to skip reading Parquet blocks reducing IO.
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