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https://issues.apache.org/jira/browse/FLINK-6547?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Timo Walther closed FLINK-6547.
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Resolution: Won't Fix
Nowadays we validate Calcite plans instead in Blink planner.
> Improve toString methods of Table API expressions
> -------------------------------------------------
>
> Key: FLINK-6547
> URL: https://issues.apache.org/jira/browse/FLINK-6547
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / API
> Reporter: Timo Walther
> Priority: Minor
> Labels: auto-deprioritized-major
>
> Right now, we logically test windows like this:
> {code}
> term(
> "window",
> TumblingGroupWindow(
> WindowReference("w1"),
> 'proctime,
> 50.milli)),
> {code}
> But this does not test if the proctime attribute is resolved nor checks the
> time indicator type.
> If we still rely on string comparison for tests, we need to make sure that
> all expressions have a rich {{toString}} function with sufficient information.
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