[
https://issues.apache.org/jira/browse/IGNITE-13919?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Konstantin Orlov updated IGNITE-13919:
--------------------------------------
Priority: Minor (was: Major)
> Calcite integration. Single group aggregates
> --------------------------------------------
>
> Key: IGNITE-13919
> URL: https://issues.apache.org/jira/browse/IGNITE-13919
> Project: Ignite
> Issue Type: Improvement
> Components: sql
> Reporter: Taras Ledkov
> Priority: Minor
> Labels: calcite2-required, calcite3-required
>
> Investigate the optimization for single group aggregates,
> e.g.: {{SELECT <aggregates> FROM <table>}}
> Now the hash based aggregates are used for this case.
> We can obtain a little performance improvement.
> Also the special cases (e.g.: {{SELECT COUNT(<any-columns>) FROM <table>}})
> may be optimized to use table/cache size.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
