Davies Liu created SPARK-13304:
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Summary: Broadcast join with two ints could be very slow
Key: SPARK-13304
URL: https://issues.apache.org/jira/browse/SPARK-13304
Project: Spark
Issue Type: Bug
Reporter: Davies Liu
If the two join columns have the same value, the hash code of them will be (a ^
b), which is 0, then the HashMap will be very very slow.
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