ulysses-you dc7b5a99f0 [SPARK-35282][SQL] Support AQE side shuffled hash join formula using rule ... ### What changes were proposed in this pull request? The main code change is: * Change rule `DemoteBroadcastHashJoin` to `DynamicJoinSelection` and add shuffle hash join selection code. * Specify a join strategy hint `SHUFFLE_HASH` if AQE think a join can be converted to SHJ. * Skip `preferSortMerge` config check in AQE side if a join can be converted to SHJ. ### Why are the changes needed? Use AQE runtime statistics to decide if we can use shuffled hash join instead of sort merge join. Currently, the formula of shuffled hash join selection dose not work due to the dymanic shuffle partition number. Add a new config spark.sql.adaptive.shuffledHashJoinLocalMapThreshold to decide if join can be converted to shuffled hash join safely. ### Does this PR introduce _any_ user-facing change? Yes, add a new config. ### How was this patch tested? Add test. Closes #32550 from ulysses-you/SPARK-35282-2. Authored-by: ulysses-you <ulyssesyou18@gmail.com> Signed-off-by: Wenchen Fan <wenchen@databricks.com>		2021-05-26 14:16:04 +00:00
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benchmarks	[SPARK-34950][TESTS] Update benchmark results to the ones created by GitHub Actions machines	2021-04-03 23:02:56 +03:00
src	[SPARK-35282][SQL] Support AQE side shuffled hash join formula using rule	2021-05-26 14:16:04 +00:00
pom.xml	[SPARK-33212][BUILD] Upgrade to Hadoop 3.2.2 and move to shaded clients for Hadoop 3.x profile	2021-01-15 14:06:50 -08:00