liutang123 048197749e [SPARK-22144][SQL] ExchangeCoordinator combine the partitions of an 0 sized pre-shuffle to 0 ... ## What changes were proposed in this pull request? when the length of pre-shuffle's partitions is 0, the length of post-shuffle's partitions should be 0 instead of spark.sql.shuffle.partitions. ## How was this patch tested? ExchangeCoordinator converted a pre-shuffle that partitions is 0 to a post-shuffle that partitions is 0 instead of one that partitions is spark.sql.shuffle.partitions. Author: liutang123 <liutang123@yeah.net> Closes #19364 from liutang123/SPARK-22144.		2018-06-11 17:48:07 -07:00
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main	[SPARK-22144][SQL] ExchangeCoordinator combine the partitions of an 0 sized pre-shuffle to 0	2018-06-11 17:48:07 -07:00
test	[SPARK-24468][SQL] Handle negative scale when adjusting precision for decimal operations	2018-06-08 18:51:56 -07:00