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https://issues.apache.org/jira/browse/IGNITE-3911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15889308#comment-15889308
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Tolstokulakov Nikolay commented on IGNITE-3911:
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Hi Vladimir
I suppose the open issue is related to aggregation over cluster. My naive
implementation does not take into account aggregation over cluster. But anyway
I have no comments or suggestion on my pull request. Currently I have no
interest in this pull request. Feel free reassign it.
> Unable to add user defined aggregate to H2
> ------------------------------------------
>
> Key: IGNITE-3911
> URL: https://issues.apache.org/jira/browse/IGNITE-3911
> Project: Ignite
> Issue Type: Improvement
> Components: SQL
> Reporter: Tolstokulakov Nikolay
> Assignee: Tolstokulakov Nikolay
>
> It is possible to add user defined function (@QuerySqlFunction annotation)
> for H2 SQL, but it is not possible to add user defined aggregate. For
> consistency I suggest create new annotation @QuerySqlAggregateClass
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