adarshsanjeev commented on code in PR #16804:
URL: https://github.com/apache/druid/pull/16804#discussion_r1696376782
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extensions-core/multi-stage-query/src/main/java/org/apache/druid/msq/querykit/scan/ScanQueryKit.java:
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@@ -178,6 +183,11 @@ public QueryDefinition makeQueryDefinition(
}
}
+ // If window has an empty over, we want a single worker to process entire
data for window function evaluation.
+ if (windowHasEmptyOver) {
+ scanShuffleSpec = MixShuffleSpec.instance();
Review Comment:
Yes. Do an ingestion with a window function which generates 3 rows of
results. Set rowsPerSegment to 1 and see how many partitions are being created.
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