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https://issues.apache.org/jira/browse/CALCITE-2707?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Danny Chen resolved CALCITE-2707.
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Fix Version/s: 1.22.0
Assignee: Danny Chen
Resolution: Fixed
Fixed in
[b8deb18|https://github.com/apache/calcite/commit/b8deb183e88bc4b22f23b0fe03d1b8fc6603c600]
!
> Information about distinct aggregation is lost in MATCH_RECOGNIZE
> -----------------------------------------------------------------
>
> Key: CALCITE-2707
> URL: https://issues.apache.org/jira/browse/CALCITE-2707
> Project: Calcite
> Issue Type: Bug
> Reporter: Dawid Wysakowicz
> Assignee: Danny Chen
> Priority: Major
> Labels: match, pull-request-available
> Fix For: 1.22.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> There is no information that the COUNT aggregation is distinct in a plan for
> a query like e.g. this:
> {code}
> SELECT *
> FROM MyTable
> MATCH_RECOGNIZE (
> MEASURES
> ....
> AFTER MATCH SKIP PAST LAST ROW
> PATTERN (A B+ C)
> DEFINE
> B AS COUNT(DISTINCT B.id) < 4
> ) AS T
> {code}
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