[jira] [Commented] (CALCITE-2708) In MATCH_RECOGNIZE, validator must ensure that arguments to a user-defined aggregate function come from a single pattern variable

["Dawid Wysakowicz (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CALCITE-2708?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16700063#comment-16700063 ] 

Dawid Wysakowicz commented on CALCITE-2708:
-------------------------------------------

Hi [~julianhyde]
It sounds like a good idea to have some common tests set, I will try to contribute back some tests that we use. Any pointers to some explanation what is the format of the {{match.iq}}?

> In MATCH_RECOGNIZE, validator must ensure that arguments to a user-defined aggregate function come from a single pattern variable
> ---------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: CALCITE-2708
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2708
>             Project: Calcite
>          Issue Type: Bug
>            Reporter: Dawid Wysakowicz
>            Assignee: Julian Hyde
>            Priority: Major
>              Labels: match
>
> In MATCH_RECOGNIZE, validator must ensure that arguments to a user-defined aggregate function (UDAF) come from a single pattern variable.
> Query:
> {code:java}
> SELECT *
> FROM Ticker
> MATCH_RECOGNIZE (
>   ORDER BY proctime
>   MEASURES
>     udagg(A.price + B.tax) AS taxedPrice
>   PATTERN (A B)
>   DEFINE
>     A AS A.symbol = 'a'
> ) AS T
> {code}
> should fail with ValidationException, because udagg is applied to different pattern variables.



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