viirya commented on code in PR #38692:
URL: https://github.com/apache/spark/pull/38692#discussion_r1026176496
##########
sql/core/src/test/scala/org/apache/spark/sql/SparkSessionExtensionSuite.scala:
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@@ -192,6 +192,23 @@ class SparkSessionExtensionSuite extends SparkFunSuite
with SQLHelper {
testInjectColumnar(false)
}
+ test("inject plan normalization rules") {
+ val extensions = create { extensions =>
+ extensions.injectPlanNormalizationRules { session =>
+ org.apache.spark.sql.catalyst.optimizer.PushDownPredicates
+ }
+ }
+ withSession(extensions) { session =>
+ import session.implicits._
+ val df = Seq((1, "a"), (2, "b")).toDF("i", "s")
+ df.select("i").filter($"i" > 1).cache()
+ assert(df.filter($"i" > 1).select("i").queryExecution.executedPlan.find {
+ case _: org.apache.spark.sql.execution.columnar.InMemoryTableScanExec
=> true
+ case _ => false
Review Comment:
So without the added rule, caching is unable to apply here, right?
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