[jira] [Commented] (SPARK-23560) A joinWith followed by groupBy requires extra shuffle

2018-03-10 Thread Bruce Robbins (JIRA)
[ https://issues.apache.org/jira/browse/SPARK-23560?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16394369#comment-16394369 ] Bruce Robbins commented on SPARK-23560: --- A simpler example that seems to reproduce this issue

[jira] [Commented] (SPARK-23560) A joinWith followed by groupBy requires extra shuffle

2018-03-07 Thread Bruce Robbins (JIRA)
[ https://issues.apache.org/jira/browse/SPARK-23560?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16390111#comment-16390111 ] Bruce Robbins commented on SPARK-23560: --- The main issue is that an AttributeReference instance