[HIVE-28431] Fix RexLiteral to ExprNode conversion if the literal is an empty string

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.1.0, 4.0.1
• Labels: hive-4.0.1-merged hive-4.0.1-must pull-request-available
• Assignee: Ramesh Kumar Thangarajan
• Reporter: Ramesh Kumar Thangarajan
• Created: 03/Aug/24 00:48
• Updated: 24/Sep/24 02:15
• Resolved: 07/Aug/24 21:13

Description

Currently conversion from RexLiteral to ExprNode fail if the literal is an empty string. This was introduced from https://issues.apache.org/jira/browse/HIVE-23892. This causes the CBO to fail

RexLiteral node will not be null but still value within RexLiteral can be empty.

 

Issue Links

• links to: GitHub Pull Request #5384