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https://issues.apache.org/jira/browse/FLINK-17349?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17090581#comment-17090581
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Aljoscha Krettek commented on FLINK-17349:
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See also my earlier comment on FLINK-17338:
https://issues.apache.org/jira/browse/FLINK-17338?focusedCommentId=17090557&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-17090557
> Reduce runtime of LocalExecutorITCase
> -------------------------------------
>
> Key: FLINK-17349
> URL: https://issues.apache.org/jira/browse/FLINK-17349
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / Client, Table SQL / Legacy Planner, Table
> SQL / Planner, Table SQL / Runtime
> Reporter: Aljoscha Krettek
> Priority: Critical
>
> Running the while ITCase takes ~3 minutes on my machine, which is not
> acceptable for developer productivity and is also quite the burden on our CI
> systems and PR iteration time.
> The issue is mostly that this does many costly operations, such as compiling
> SQL queries. Some tests are inefficient in that they do a lot more
> repetitions or test things that are not needed here. Also {{LocalExecutor}}
> itself is a bit wasteful because every time a session property is changed,
> when opening a session, and for other things we trigger reloading/re-parsing
> the environment, which means all the defined catalogs, sources/sinks, and
> views.
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