maropu commented on a change in pull request #29170:
URL: https://github.com/apache/spark/pull/29170#discussion_r518567508
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
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@@ -116,7 +116,8 @@ abstract class Optimizer(catalogManager: CatalogManager)
operatorOptimizationRuleSet.filterNot(_ == InferFiltersFromConstraints)
Batch("Operator Optimization before Inferring Filters", fixedPoint,
rulesWithoutInferFiltersFromConstraints: _*) ::
- Batch("Infer Filters", Once,
+ Batch("Infer Filters", fixedPoint,
+ PushDownPredicates,
Review comment:
My concern is that the change above might cause the issue described in
#19149. Instead, (just a suggestion), we couldn't improve
`InferFiltersFromConstraints` to cover the case you pointed out in the PR
description?
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