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_r339223676
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/state/SymmetricHashJoinStateManager.scala
##########
@@ -435,9 +541,10 @@ class SymmetricHashJoinStateManager(
}
/** Put new value for key at the given index */
- def put(key: UnsafeRow, valueIndex: Long, value: UnsafeRow): Unit = {
+ def put(key: UnsafeRow, valueIndex: Long, value: UnsafeRow, matched:
Boolean): Unit = {
val keyWithIndex = keyWithIndexRow(key, valueIndex)
- stateStore.put(keyWithIndex, value)
+ val valueWithMatched = valueRowConverter.convertToValueRow(value,
matched)
Review comment:
So, while replying to your comment, this came to my mind.
The way I see this code, when you start from a v1 state store, you'll also
be writing back v1 data.
Shouldn't you write out new data, so that you fix the problem going forward
once you start the app with the fixed version of Spark?
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