mahesh kumar behera created HIVE-25431: ------------------------------------------
Summary: Enable CBO for null safe equality operator. Key: HIVE-25431 URL: https://issues.apache.org/jira/browse/HIVE-25431 Project: Hive Issue Type: Bug Components: Hive, HiveServer2 Reporter: mahesh kumar behera Assignee: mahesh kumar behera The CBO is disabled for null safe equality (<=>) operator. This is causing the sub optimal join execution for some queries. As null safe equality is supported by joins, the CBO can be enabled for it. There will be issues with join reordering as Hive does not support join reordering for null safe equality operator. But with CBO enabled the join plan will be better. -- This message was sent by Atlassian Jira (v8.3.4#803005)