kasakrisz commented on a change in pull request #2887:
URL: https://github.com/apache/hive/pull/2887#discussion_r770684249
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/parse/CalcitePlanner.java
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@@ -2427,7 +2430,7 @@ protected RelNode executeProgram(RelNode basePlan,
HepProgram program,
// Create planner and copy context
HepPlanner planner = new HepPlanner(program,
basePlan.getCluster().getPlanner().getContext());
-
+ planner.addListener(new RuleEventLogger());
Review comment:
Should we add a check the log level setting before adding this listener
like
```
if (LOG.isDebugEnabled()) {
planner.addListener(new RuleEventLogger());
}
```
It may seems to be a preliminary optimization, what do you think?
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