HeartSaVioR commented on a change in pull request #32828:
URL: https://github.com/apache/spark/pull/32828#discussion_r647971086
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/state/SymmetricHashJoinStateManager.scala
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@@ -274,6 +274,9 @@ class SymmetricHashJoinStateManager(
if (valuePairAtMaxIndex != null) {
keyWithIndexToValue.put(currentKey, index,
valuePairAtMaxIndex.value,
valuePairAtMaxIndex.matched)
+ } else {
+ logWarning(s"`keyWithIndexToValue` returns a null value for index
${numValues - 1} " +
Review comment:
Oh that's a brilliant idea. Just to make sure we don't miss anything,
how it will be printed out? Probably testing with simple but composite row
(like row having String, Int, Timestamp, etc.) would be good.
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