[jira] [Created] (FLINK-19678) tableEnv.getConfig.setNullCheck(false) seems to break group by

[Shang Yuanchun (Jira)]

Ion Alberdi created FLINK-19678:
-----------------------------------

             Summary: tableEnv.getConfig.setNullCheck(false) seems to break group by
                 Key: FLINK-19678
                 URL: https://issues.apache.org/jira/browse/FLINK-19678
             Project: Flink
          Issue Type: Bug
          Components: Table SQL / Runtime
    Affects Versions: 1.11.2
            Reporter: Ion Alberdi


The program  written at [https://gist.github.com/yetanotherion/d007fa113d97411226eaea4f20cd4c2d|https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgist.github.com%2Fyetanotherion%2Fd007fa113d97411226eaea4f20cd4c2d&data=04%7C01%7Cj.alberdi%40criteo.com%7C08c520289ec4433b7b7a08d871c60180%7C2a35d8fd574d48e3927c8c398e225a01%7C1%7C1%7C637384442549853109%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=vQGyO%2FqLQ%2FCN%2BVuQPYbmPVfKDbLxVKmWJh%2Fu9L2qTBw%3D&reserved=0]

creates unexpected stack traces when the line
*// triggerBug…*

Is uncommented (some lines of the stack trace are written in the gist).

(It correctly outputs
{code:java}
+-------------+
|           c |
+-------------+
|           1 |
|           2 |
+-------------+
 {code}
else)



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