yucai 743b73daf7 [SPARK-26909][FOLLOWUP][SQL] use unsafeRow.hashCode() as hash value in HashAggregate ... ## 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., so the hash should be different from shuffle hash, and then we don't need a special seed. ## How was this patch tested? UTs. Closes #23821 from yucai/unsafe_hash. Authored-by: yucai <yyu1@ebay.com> Signed-off-by: Wenchen Fan <wenchen@databricks.com>		2019-02-19 13:01:10 +08:00
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benchmarks	[SPARK-26745][SQL] Revert count optimization in JSON datasource by SPARK-24959	2019-01-31 14:32:31 +08:00
src	[SPARK-26909][FOLLOWUP][SQL] use unsafeRow.hashCode() as hash value in HashAggregate	2019-02-19 13:01:10 +08:00
pom.xml	[SPARK-25956] Make Scala 2.12 as default Scala version in Spark 3.0	2018-11-14 16:22:23 -08:00