Chao Sun created HIVE-11297: ------------------------------- Summary: Combine op trees for partition info generating tasks [Spark branch] Key: HIVE-11297 URL: https://issues.apache.org/jira/browse/HIVE-11297 Project: Hive Issue Type: Bug Affects Versions: spark-branch Reporter: Chao Sun
Currently, for dynamic partition pruning in Spark, if a small table generates partition info for more than one partition columns, multiple operator trees are created, which all start from the same table scan op, but have different spark partition pruning sinks. As an optimization, we can combine these op trees and so don't have to do table scan multiple times. -- This message was sent by Atlassian JIRA (v6.3.4#6332)