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Sean Hsuan-Yi Chu edited comment on DRILL-4476 at 5/4/16 4:30 PM: ------------------------------------------------------------------ The change in UnionAllRecordBatch in DRILL-2288 is related to this JIRA. was (Author: seanhychu): The change in UnionAllRecordBatch is related. > Enhance Union-All operator for dealing with empty left input or empty both > inputs > --------------------------------------------------------------------------------- > > Key: DRILL-4476 > URL: https://issues.apache.org/jira/browse/DRILL-4476 > Project: Apache Drill > Issue Type: Bug > Components: Execution - Relational Operators > Reporter: Sean Hsuan-Yi Chu > Assignee: Sean Hsuan-Yi Chu > Fix For: 1.7.0 > > > Union-All operator does not deal with the situation where left side comes > from empty source. > Due to DRILL-2288's enhancement for empty sources, Union-All operator now can > be allowed to support this scenario. -- This message was sent by Atlassian JIRA (v6.3.4#6332)