asolimando commented on a change in pull request #3011:
URL: https://github.com/apache/hive/pull/3011#discussion_r804712080
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File path: ql/src/java/org/apache/hadoop/hive/ql/parse/CalcitePlanner.java
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@@ -2026,6 +2038,10 @@ protected RelNode
applyMaterializedViewRewriting(RelOptPlanner planner, RelNode
// Optimize plan
if (!ruleExclusionRegex.isEmpty()) {
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("The CBO rules matching the following regex are excluded
from planning: {}",
+ ruleExclusionRegex);
+ }
Review comment:
Some prefers to protect any string concatenation and/or `.toString()`
over objects with `isDebugEnabled()`, but I have no problem dropping it, it
won't make much of a difference here anyway.
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