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https://issues.apache.org/jira/browse/STORM-2135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15552625#comment-15552625
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Jungtaek Lim commented on STORM-2135:
-------------------------------------
Scalar functions in SQL reference seems to be automatically covered by Storm
SQL.
Please refer
https://github.com/apache/storm/pull/1714/commits/ac7a5a354668479168149ec981ad93a4bc97c9d4
For now we use our own aggregate functions (not sure we can get it and
integrate with Trident aggregation), we need to write down our own supported
aggregate functions.
We don't support windowing for now, so no window functions supported.
We can adopt SQL reference page in Calcite and remove what Storm SQL doesn't
support / add what Storm SQL supports.
> [StormSQL] document covered features of SQL reference in Calcite
> ----------------------------------------------------------------
>
> Key: STORM-2135
> URL: https://issues.apache.org/jira/browse/STORM-2135
> Project: Apache Storm
> Issue Type: Task
> Components: storm-sql
> Reporter: Jungtaek Lim
>
> After STORM-2125, Storm SQL will directly use Calcite Rex compiler which can
> cover handling rex operations.
> In other words, we can expect Storm SQL will cover huge part of SQL reference
> in Calcite page.
> This issue tracks the effort of document covered features on Storm SQL.
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