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https://issues.apache.org/jira/browse/FLINK-7357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16120483#comment-16120483
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Rong Rong commented on FLINK-7357:
----------------------------------

Seems like the logical plan generated from Having inserts another 
`LogicalFilter` in between the outer project and inner project. Thus the 
`WindowStartEndPropertiesRule` did not get fired. 

Working on a fix now, [~wheat9] can I assign to myself?

> HOP_START() HOP_END() does not work when using HAVING clause with GROUP BY 
> HOP window
> -------------------------------------------------------------------------------------
>
>                 Key: FLINK-7357
>                 URL: https://issues.apache.org/jira/browse/FLINK-7357
>             Project: Flink
>          Issue Type: Bug
>          Components: Table API & SQL
>    Affects Versions: 1.3.1
>            Reporter: Rong Rong
>            Assignee: Haohui Mai
>
> The following SQL does not compile:
> {code:title=invalid_having_hop_start_sql}
> SELECT 
>   c AS k, 
>   COUNT(a) AS v, 
>   HOP_START(rowtime, INTERVAL '1' MINUTE, INTERVAL '1' MINUTE) AS 
> windowStart, 
>   HOP_END(rowtime, INTERVAL '1' MINUTE, INTERVAL '1' MINUTE) AS windowEnd 
> FROM 
>   T1 
> GROUP BY 
>   HOP(rowtime, INTERVAL '1' MINUTE, INTERVAL '1' MINUTE), 
>   c 
> HAVING 
>   SUM(b) > 1
> {code}
> While individually keeping HAVING clause or HOP_START field compiles and runs 
> without issue.
> more details: 
> https://github.com/apache/flink/compare/master...walterddr:having_does_not_work_with_hop_start_end



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