yucai opened a new pull request #23821: [SPARK-26909][FOLLOWUP][SQL] use unsafeRow.hashCode() as hash value in HashAggregate URL: https://github.com/apache/spark/pull/23821 ## What changes were proposed in this pull request? This is a followup PR for #21149. New way uses unsafeRow.hashCode() as hash value in HashAggregate. The unsafe row has [null bit set] etc., the result should be different, so we don't need weird `48`. ## How was this patch tested? UTs.
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