vanzin commented on a change in pull request #23398: [SPARK-26493][SQL] Allow
multiple spark.sql.extensions
URL: https://github.com/apache/spark/pull/23398#discussion_r246470349
##########
File path:
sql/core/src/test/scala/org/apache/spark/sql/SparkSessionExtensionSuite.scala
##########
@@ -108,12 +124,86 @@ class SparkSessionExtensionSuite extends SparkFunSuite {
try {
assert(session.sessionState.planner.strategies.contains(MySparkStrategy(session)))
assert(session.sessionState.analyzer.extendedResolutionRules.contains(MyRule(session)))
+
assert(session.sessionState.analyzer.postHocResolutionRules.contains(MyRule(session)))
+
assert(session.sessionState.analyzer.extendedCheckRules.contains(MyCheckRule(session)))
+
assert(session.sessionState.optimizer.batches.flatMap(_.rules).contains(MyRule(session)))
+ assert(session.sessionState.sqlParser.isInstanceOf[MyParser])
+ assert(session.sessionState.functionRegistry
+ .lookupFunction(MyExtensions.myFunction._1).isDefined)
+ } finally {
+ stop(session)
+ }
+ }
+
+ test("use multiple custom class for extensions in the specified order") {
+ val session = SparkSession.builder()
+ .master("local[1]")
+ .config("spark.sql.extensions", Seq(
+ classOf[MyExtensions2].getCanonicalName,
+ classOf[MyExtensions].getCanonicalName).mkString(","))
+ .getOrCreate()
+ try {
+ assert(session.sessionState.planner.strategies.containsSlice(
+ Seq(MySparkStrategy2(session), MySparkStrategy(session))))
+ val orderedRules = Seq(MyRule2(session), MyRule(session))
+ val orderedCheckRules = Seq(MyCheckRule2(session), MyCheckRule(session))
+ val parser = MyParser(session, CatalystSqlParser)
+
assert(session.sessionState.analyzer.extendedResolutionRules.containsSlice(orderedRules))
+
assert(session.sessionState.analyzer.postHocResolutionRules.containsSlice(orderedRules))
+
assert(session.sessionState.analyzer.extendedCheckRules.containsSlice(orderedCheckRules))
+
assert(session.sessionState.optimizer.batches.flatMap(_.rules).filter(orderedRules.contains)
+ .containsSlice(orderedRules ++ orderedRules)) // The optimizer rules
are duplicated
+ assert(session.sessionState.sqlParser == parser)
Review comment:
`==` and `===` are not equivalent, and we use `===` in tests. The latter,
for example, handles arrays correctly, which the former does not.
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