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https://issues.apache.org/jira/browse/FLINK-6839?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Metzger updated FLINK-6839:
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Component/s: Table API & SQL
> Improve SQL OVER alias When only one OVER window agg in selection.
> ------------------------------------------------------------------
>
> Key: FLINK-6839
> URL: https://issues.apache.org/jira/browse/FLINK-6839
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: sunjincheng
>
> For OVER SQL:
> {code}
> SELECT a COUNT(c) OVER (ORDER BY proctime RANGE BETWEEN INTERVAL '10' SECOND
> PRECEDING AND CURRENT ROW) as cnt1 FROM MyTable
> {code}
> We expect plan {{DataStreamCalc(select=[a, w0$o0 AS cnt1])}} But we get
> {{DataStreamCalc(select=[a, w0$o0 AS $1])}}. this improve only for plan
> check. the functional is work well in nested queries，e.g.:
> {code}
> SELECT cnt1 from (SELECT a COUNT(c) OVER (ORDER BY proctime RANGE BETWEEN
> INTERVAL '10' SECOND PRECEDING AND CURRENT ROW) as cnt1 FROM MyTable)
> {code}
> The SQL above is work well. which mentioned in
> [FLINK-6760|https://issues.apache.org/jira/browse/FLINK-6760].
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