soumyakanti3578 commented on a change in pull request #1959:
URL: https://github.com/apache/hive/pull/1959#discussion_r572938384
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File path:
ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/rules/HiveJoinConstraintsRule.java
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@@ -334,11 +335,13 @@ private void rewrite(final Mode mode, final RelNode
inputToKeep, final RelNode i
}
} else { // Mode.TRANSFORM
// Trigger transformation
+ List<RexNode> exps = new ArrayList<>();
+ project.accept(new ChildExpsRexShuttle(exps));
call.transformTo(call.builder()
.push(leftInput).push(rightInput)
.join(JoinRelType.INNER, join.getCondition())
.convert(call.rel(1).getRowType(), false) // Preserve nullability
- .project(project.getChildExps())
Review comment:
The project here is of type `RelNode` which doesn't have a `getProjects`
method. In other places, generally the variable is of `Project` type.
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