snleee commented on a change in pull request #8067:
URL: https://github.com/apache/pinot/pull/8067#discussion_r792047544
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File path:
pinot-broker/src/main/java/org/apache/pinot/broker/routing/segmentpruner/SegmentPrunerFactory.java
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@@ -69,7 +70,10 @@ private SegmentPrunerFactory() {
}
}
}
- segmentPruners.addAll(sortSegmentPruners(configuredSegmentPruners));
+ // sort all segment pruners so that always prune empty segments first.
After that, pruned based on time
Review comment:
Can you add the comment on why you picked the order in this way?
```
empty -> time -> partition
```
If we are trying to sort them in a particular order for improving the
performance, this order may not be the optimal case. (We need to put the pruner
that will potentially prune the most segments to front)
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