okumin commented on code in PR #5452:
URL: https://github.com/apache/hive/pull/5452#discussion_r1804676002
##########
ql/src/java/org/apache/hadoop/hive/ql/parse/TezCompiler.java:
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@@ -991,35 +987,6 @@ private void
removeSemiJoinIfNoStats(OptimizeTezProcContext procCtx)
ogw.startWalking(topNodes, null);
}
- private static class CollectAll implements SemanticNodeProcessor {
Review Comment:
This is not used anywhere. I assume it is costly to ensure unused classes
works correctly compared with advantages to keep maintaining it.
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