Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/1469#discussion_r50391192
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/operators/hash/MutableHashTable.java
---
@@ -486,11 +518,43 @@ protected boolean processProbeIter() throws
IOException{
}
}
// -------------- partition done ---------------
-
+
return false;
}
+ protected boolean processUnmatchedBuildIter() throws IOException {
+ if (this.unmatchedBuildVisited) {
+ return false;
+ }
+
+ this.probeMatchedPhase = false;
+ UnmatchedBuildIterator<BT, PT> unmatchedBuildIter = new
UnmatchedBuildIterator<>(this.buildSideSerializer, this.numBuckets,
+ this.bucketsPerSegmentBits, this.bucketsPerSegmentMask,
this.buckets, this.partitionsBeingBuilt, probedSet);
+ this.unmatchedBuildIterator = unmatchedBuildIter;
+
+ // There maybe none unmatched build element, so we add a
verification here to make sure we do not return (null, null) to user.
+ if (unmatchedBuildIter.next() == null) {
--- End diff --
OK, sounds good.
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