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https://issues.apache.org/jira/browse/IGNITE-24131?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Maksim Timonin updated IGNITE-24131:
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Labels: ise (was: )
> GroupKey.Builder should not create array for every row
> -------------------------------------------------------
>
> Key: IGNITE-24131
> URL: https://issues.apache.org/jira/browse/IGNITE-24131
> Project: Ignite
> Issue Type: Improvement
> Reporter: Maksim Timonin
> Assignee: Maksim Timonin
> Priority: Major
> Labels: ise
> Fix For: 2.18
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> In case SQL query with group by, HashAggregateNode handles every row and
> store in the hash-key group. It now creates object arr for every row but it
> is sub-optimal for queries that operates big data sets (100k rows) and only
> few groups. In a such case the array can be reused.
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