vanzin commented on a change in pull request #26108: [SPARK-26154][SS]
Streaming left/right outer join should not return outer nulls for already
matched rows
URL: https://github.com/apache/spark/pull/26108#discussion_r338821563
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/StreamingSymmetricHashJoinExec.scala
##########
@@ -139,13 +141,20 @@ case class StreamingSymmetricHashJoinExec(
rightKeys: Seq[Expression],
joinType: JoinType,
condition: Option[Expression],
+ stateFormatVersion: Int,
left: SparkPlan,
right: SparkPlan) = {
this(
leftKeys, rightKeys, joinType, JoinConditionSplitPredicates(condition,
left, right),
stateInfo = None, eventTimeWatermark = None,
- stateWatermarkPredicates = JoinStateWatermarkPredicates(), left, right)
+ stateWatermarkPredicates = JoinStateWatermarkPredicates(),
stateFormatVersion, left, right)
+ }
+
+ if (stateFormatVersion < 2 && joinType != Inner) {
+ logError(s"The query is using stream-stream outer join with state format
version" +
Review comment:
Is logging enough? Shouldn't you just fail the query?
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