Wenchen Fan 4144b6da52 [SPARK-32764][SQL] -0.0 should be equal to 0.0 ... ### What changes were proposed in this pull request? This is a Spark 3.0 regression introduced by https://github.com/apache/spark/pull/26761. We missed a corner case that `java.lang.Double.compare` treats 0.0 and -0.0 as different, which breaks SQL semantic. This PR adds back the `OrderingUtil`, to provide custom compare methods that take care of 0.0 vs -0.0 ### Why are the changes needed? Fix a correctness bug. ### Does this PR introduce _any_ user-facing change? Yes, now `SELECT 0.0 > -0.0` returns false correctly as Spark 2.x. ### How was this patch tested? new tests Closes #29647 from cloud-fan/float. Authored-by: Wenchen Fan <wenchen@databricks.com> Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>		2020-09-07 20:43:43 -07:00
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benchmarks	[SPARK-30413][SQL] Avoid WrappedArray roundtrip in GenericArrayData constructor, plus related optimization in ParquetMapConverter	2020-01-19 19:12:19 -08:00
src	[SPARK-32764][SQL] -0.0 should be equal to 0.0	2020-09-07 20:43:43 -07:00
pom.xml	[SPARK-30950][BUILD] Setting version to 3.1.0-SNAPSHOT	2020-02-25 19:44:31 -08:00