[HIVE-16934] Transform COUNT(x) into COUNT() when x is not nullable

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0
• Component/s: Logical Optimizer
• Target Version/s: 3.0.0
• Assignee: Jesús Camacho Rodríguez
• Reporter: Jesús Camacho Rodríguez
• Created: 21/Jun/17 18:33
• Updated: 27/Feb/24 22:23
• Resolved: 24/Jun/17 09:50

Description

Add a rule to simplify COUNT aggregation function if possible, removing expressions that cannot be nullable from its parameters.

Issue Links

• links to: RB link