ravipesala commented on a change in pull request #3122: [CARBONDATA-3289] MV datamap doesn't take effect when having clause use alias
URL:
https://github.com/apache/carbondata/pull/3122#discussion_r282931593
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File path: datamap/mv/plan/src/main/scala/org/apache/carbondata/mv/plans/util/BirdcageOptimizer.scala
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@@ -156,6 +159,53 @@ object BirdcageOptimizer extends RuleExecutor[LogicalPlan] {
}
}
+// This class is used to optimize the filter condition
+// If all of the conditions have alias on the aggregate expressions
+// it will be pull up and exchange the alias to match the MV
+object MVPredicateAlias extends Rule[LogicalPlan] with PredicateHelper {
Review comment:
Whatever is pushdown in `PushDownPredicate` you are trying to pull up using this rule. Please just remove the `PushDownPredicate` from the optimizer will solve all having clause issues. But the only issue will be with filter query on groupby queries , I think that issue can be fixed in MV module instead of adding a rule.
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