clintropolis commented on PR #13267:
URL: https://github.com/apache/druid/pull/13267#issuecomment-1295584079

   > it looks like integration tests are still failing in the 24.0.1 branch. We 
might want to check if there is something non-deterministic or not.
   
   hmm, these actually look unrelated to my fix, but maybe worth looking into
   
   ```
   [ERROR] 
org.apache.druid.sql.avatica.DruidAvaticaHandlerTest.testConcurrentQueries  
Time elapsed: 12.981 s  <<< ERROR!
   java.util.concurrent.ExecutionException: java.lang.RuntimeException: 
org.apache.calcite.avatica.AvaticaSqlException: Error -1 (00000) : Error while 
executing SQL "SELECT COUNT(*) + 1636 AS ci FROM foo": Remote driver error: 
QueryInterruptedException: Error while applying rule 
DruidQueryRule(AGGREGATE_PROJECT), args 
[rel#631993:LogicalProject.NONE.[](input=RelSubset#631992,ci=+($0, 1636)), 
rel#632012:DruidQueryRel.NONE.[](query={"queryType":"timeseries","dataSource":{"type":"table","name":"foo"},"intervals":{"type":"intervals","intervals":["-146136543-09-08T08:23:32.096Z/146140482-04-24T15:36:27.903Z"]},"granularity":{"type":"all"},"aggregations":[{"type":"count","name":"a0"}],"context":{"nativeQueryIds":"[3ef1e7e1-f2f6-4152-8384-229eaea39482]","sqlQueryId":"f2727102-ff6c-404c-8f9a-2ed84a406e46","sqlStringifyArrays":false}},signature={a0:LONG})]
 -> RuntimeException: Error while applying rule 
DruidQueryRule(AGGREGATE_PROJECT), args 
[rel#631993:LogicalProject.NONE.[](input=RelSubset#
 631992,ci=+($0, 1636)), 
rel#632012:DruidQueryRel.NONE.[](query={"queryType":"timeseries","dataSource":{"type":"table","name":"foo"},"intervals":{"type":"intervals","intervals":["-146136543-09-08T08:23:32.096Z/146140482-04-24T15:36:27.903Z"]},"granularity":{"type":"all"},"aggregations":[{"type":"count","name":"a0"}],"context":{"nativeQueryIds":"[3ef1e7e1-f2f6-4152-8384-229eaea39482]","sqlQueryId":"f2727102-ff6c-404c-8f9a-2ed84a406e46","sqlStringifyArrays":false}},signature={a0:LONG})]
 -> NullPointerException: Cannot invoke "java.util.Map.size()" because "m" is 
null
   ```
   
   I think maybe https://github.com/apache/druid/pull/13049 is the fix


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