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Posted to issues-all@impala.apache.org by "Daniel Becker (Jira)" <ji...@apache.org> on 2022/11/23 12:19:00 UTC
[jira] [Updated] (IMPALA-11613) Optimize result spooling for the statement that returns at most one row
[ https://issues.apache.org/jira/browse/IMPALA-11613?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Becker updated IMPALA-11613:
-----------------------------------
Fix Version/s: (was: Impala 4.2.0)
Target Version: Impala 4.3.0
> Optimize result spooling for the statement that returns at most one row
> -----------------------------------------------------------------------
>
> Key: IMPALA-11613
> URL: https://issues.apache.org/jira/browse/IMPALA-11613
> Project: IMPALA
> Issue Type: Improvement
> Reporter: Xianqing He
> Assignee: Xianqing He
> Priority: Major
>
> If result spooling is enabled and the statement that returns at most one row, we can
> set the min memory reservation by the row size.
>
> The strategy is as follows:
> # If it contains string or complex data types we set the reservation as max_row_size.
> # Others compute the row size.
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