cloud-fan commented on a change in pull request #32355:
URL: https://github.com/apache/spark/pull/32355#discussion_r681628239
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/SparkStrategies.scala
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@@ -139,6 +141,36 @@ abstract class SparkStrategies extends
QueryPlanner[SparkPlan] {
object JoinSelection extends Strategy
with PredicateHelper
with JoinSelectionHelper {
+ private val hintErrorHandler = conf.hintErrorHandler
+
+ private def checkHintBuildSide(
+ onlyLookingAtHint: Boolean,
+ buildSide: Option[BuildSide],
+ joinType: JoinType,
+ hint: JoinHint,
+ isBroadcast: Boolean): Unit = {
+ if (onlyLookingAtHint && buildSide.isEmpty) {
+ if ((isBroadcast && hintToBroadcastLeft(hint)) ||
+ (!isBroadcast && hintToShuffleHashJoinLeft(hint))) {
+ assert(hint.leftHint.isDefined)
+ hintErrorHandler.joinHintNotSupported(hint.leftHint.get,
+ s"build left for ${joinType.sql.toLowerCase(Locale.ROOT)} join")
+ } else if ((isBroadcast && hintToBroadcastRight(hint)) ||
+ (!isBroadcast && hintToShuffleHashJoinRight(hint))) {
+ assert(hint.rightHint.isDefined)
+ hintErrorHandler.joinHintNotSupported(hint.rightHint.get,
+ s"build right for ${joinType.sql.toLowerCase(Locale.ROOT)} join")
+ }
+ }
+ }
+
+ private def checkHintNonEquiJoin(hint: JoinHint): Unit = {
+ if (hintToShuffleHashJoin(hint) || hintToSortMergeJoin(hint)) {
+ assert(hint.leftHint.orElse(hint.rightHint).isDefined)
+
hintErrorHandler.joinHintNotSupported(hint.leftHint.orElse(hint.rightHint).get,
+ "equi join keys is not existed")
Review comment:
`no equi-join keys`
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