HyukjinKwon commented on a change in pull request #23556: [SPARK-26626][SQL]
Maximum size for repeatedly substituted aliases in SQL expressions
URL: https://github.com/apache/spark/pull/23556#discussion_r265402165
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
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@@ -658,7 +658,8 @@ object CollapseProject extends Rule[LogicalPlan] {
def apply(plan: LogicalPlan): LogicalPlan = plan transformUp {
Review comment:
Is the purpose to give up this rule basically? Why don't we consider using
`spark.sql.optimizer.excludedRules`? I think it's more general way to resolve
such issues.
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