[jira] [Created] (FLINK-17349) Reduce runtime of LocalExecutorITCase

[Shang Yuanchun (Jira)]

Aljoscha Krettek created FLINK-17349:
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             Summary: 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


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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