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Posted to issues@calcite.apache.org by "Atri Sharma (JIRA)" <ji...@apache.org> on 2017/07/06 18:26:00 UTC
[jira] [Commented] (CALCITE-1345) Streaming GROUP BY
[ https://issues.apache.org/jira/browse/CALCITE-1345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16077011#comment-16077011 ]
Atri Sharma commented on CALCITE-1345:
--------------------------------------
[~julianhyde] Looking at the test you wrote, does
{code:java}
DeltaAggregateTransposeRule
{code} seem like a good place to follow for writing the rule?
> Streaming GROUP BY
> ------------------
>
> Key: CALCITE-1345
> URL: https://issues.apache.org/jira/browse/CALCITE-1345
> Project: Calcite
> Issue Type: Bug
> Components: stream
> Reporter: Julian Hyde
> Assignee: Atri Sharma
>
> Implement streaming {{GROUP BY}}, including parsing, validation, and execution using the Interpreter (probably a variation of AggregateNode), intermittently returning results when a monotonic column indicates that the next set of results are ready. Add test(s) to StreamingTest. Example query should include {{FLOOR(rowtime TO HOUR)}}; the {{TUMBLE}}, {{HOP}} and {{SESSION}} functions are out of scope of this JIRA case.
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