[
https://issues.apache.org/jira/browse/IMPALA-2937?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Mostafa Mokhtar resolved IMPALA-2937.
-------------------------------------
Resolution: Fixed
Fix Version/s: Impala 2.12.0
> Introduce sampled statistics
> ----------------------------
>
> Key: IMPALA-2937
> URL: https://issues.apache.org/jira/browse/IMPALA-2937
> Project: IMPALA
> Issue Type: Sub-task
> Components: Backend
> Affects Versions: Impala 2.2
> Reporter: Mostafa Mokhtar
> Priority: Minor
> Labels: planner, supportability
> Fix For: Impala 2.12.0
>
>
> Stats computation can be expensive, introduce sampled scans for Parquet and
> text files to speedup stats computation.
> Database will have a default sampling rate which can be overridden at table
> level.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
