[HIVE-9015] Constant Folding optimizer doesn't handle expressions involving null

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.14.0, 1.0.0, 1.1.0
• Fix Version/s: 1.2.0
• Component/s: Logical Optimizer
• Assignee: Ashutosh Chauhan
• Reporter: Ashutosh Chauhan
• Created: 04/Dec/14 00:50
• Updated: 18/May/15 19:49
• Resolved: 16/Apr/15 01:14

Description

Expressions which are guaranteed to evaluate to null aren't folded by optimizer yet.

Issue Links

• is superceded by: HIVE-9645 Constant folding case NULL equality