florin-akermann commented on code in PR #14174:
URL: https://github.com/apache/kafka/pull/14174#discussion_r1372233874
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streams/src/main/java/org/apache/kafka/streams/kstream/internals/InternalStreamsBuilder.java:
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@@ -351,8 +353,23 @@ private void optimizeTopology(final Properties props) {
LOG.debug("Optimizing the Kafka Streams graph for self-joins");
rewriteSingleStoreSelfJoin(root, new IdentityHashMap<>());
}
+ LOG.debug("Optimizing the Kafka Streams graph for null-key records");
+ rewriteRepartitionNodes();
}
+ private void rewriteRepartitionNodes() {
Review Comment:
Ok, so basically we remove this optimization completley for now?
Developers could still just filter out null keys with a 'filter' operator to
achieve the old behavior.
And then we make a separate ticket where developers can opt in to this
optimization?
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