[jira] [Commented] (IGNITE-13919) Calcite integration. Single group aggregates

["Ignite TC Bot (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-13919?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17637297#comment-17637297 ] 

Ignite TC Bot commented on IGNITE-13919:
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{panel:title=Branch: [pull/10390/head] Base: [master] : No blockers found!|borderStyle=dashed|borderColor=#ccc|titleBGColor=#D6F7C1}{panel}
{panel:title=Branch: [pull/10390/head] Base: [master] : New Tests (1)|borderStyle=dashed|borderColor=#ccc|titleBGColor=#D6F7C1}
{color:#00008b}Calcite SQL{color} [[tests 1|https://ci2.ignite.apache.org/viewLog.html?buildId=6920787]]
* {color:#013220}IgniteCalciteTestSuite: AggregatesIntegrationTest.testCountIndexedField - PASSED{color}

{panel}
[TeamCity *--> Run :: All* Results|https://ci2.ignite.apache.org/viewLog.html?buildId=6920867&buildTypeId=IgniteTests24Java8_RunAll]

> 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
>            Assignee: Aleksey Plekhanov
>            Priority: Minor
>              Labels: calcite2-required, calcite3-required
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> 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.



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