gatorsmile commented on a change in pull request #30808:
URL: https://github.com/apache/spark/pull/30808#discussion_r544777666
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/SparkSessionExtensions.scala
##########
@@ -200,19 +200,20 @@ class SparkSessionExtensions {
optimizerRules += builder
}
- private[this] val dataSourceRewriteRules = mutable.Buffer.empty[RuleBuilder]
+ private[this] val postOperatorOptimizationRules =
mutable.Buffer.empty[RuleBuilder]
- private[sql] def buildDataSourceRewriteRules(session: SparkSession):
Seq[Rule[LogicalPlan]] = {
- dataSourceRewriteRules.map(_.apply(session)).toSeq
+ private[sql] def buildPostOperatorOptimizationRules(
+ session: SparkSession): Seq[Rule[LogicalPlan]] = {
+ postOperatorOptimizationRules.map(_.apply(session)).toSeq
}
/**
- * Inject an optimizer `Rule` builder that rewrites data source plans into
the [[SparkSession]].
+ * Inject an optimizer `Rule` builder that rewrites logical plans into the
[[SparkSession]].
* The injected rules will be executed after the operator optimization batch
and before rules
* that depend on stats.
*/
- def injectDataSourceRewriteRule(builder: RuleBuilder): Unit = {
- dataSourceRewriteRules += builder
+ def injectPostOperatorOptimizationRule(builder: RuleBuilder): Unit = {
Review comment:
BTW, eventually, we should move all the statistics based rules from the
optimizer to the planner
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