LakshSingla commented on code in PR #13352:
URL: https://github.com/apache/druid/pull/13352#discussion_r1021064927
##########
extensions-core/multi-stage-query/src/main/java/org/apache/druid/msq/exec/QueryValidator.java:
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@@ -55,6 +57,15 @@ public static void validateQueryDef(final QueryDefinition
queryDef)
throw new ISE("Number of workers must be greater than 0");
}
}
+
+ // Check if the number of columns in the query's CLUSTERED BY clause donot
exceed the limit
+ ClusterBy queryClusteredBy =
queryDef.getFinalStageDefinition().getClusterBy();
Review Comment:
Looking at the TooManyColumnsFault, I think that we can also go ahead with
the second proposition since that is also imposed at a per-stage level, which
might not correspond to the final result that the user expects. (The wording
might need to change though).
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