AmatyaAvadhanula commented on code in PR #16324:
URL: https://github.com/apache/druid/pull/16324#discussion_r1577307196


##########
indexing-service/src/test/java/org/apache/druid/indexing/common/task/CompactionTaskTest.java:
##########
@@ -1512,7 +1512,7 @@ public void 
testQueryGranularityAndNullSegmentGranularity() throws IOException
         
AGGREGATORS.stream().map(AggregatorFactory::getCombiningFactory).collect(Collectors.toList()),
         SEGMENT_INTERVALS,
         Granularities.MONTH,
-        new PeriodGranularity(Period.months(3), null, null),

Review Comment:
   Yes, it could break existing compaction configurations.
   My observation is that for replacing jobs such as compaction, if we specify 
a coarser query granularity like ALL and segment granularity as DAY,
   1. We process the data as if the segment granularity and query granularity 
were both DAY.
   2. The segment metadata retains query granularity as ALL and segment 
granularity as DAY.



##########
indexing-service/src/test/java/org/apache/druid/indexing/common/task/CompactionTaskTest.java:
##########
@@ -1492,7 +1492,7 @@ public void 
testQueryGranularityAndNullSegmentGranularity() throws IOException
         null,
         null,
         null,
-        new ClientCompactionTaskGranularitySpec(null, new 
PeriodGranularity(Period.months(3), null, null), null),
+        new ClientCompactionTaskGranularitySpec(null, Granularities.HOUR, 
null),

Review Comment:
   Done



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