[FLINK-19891] ScalarOperatorGens should generate a not-null type for IS NULL and IS NOT NULL

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.12.0
• Component/s: Table SQL / Planner
• Labels: pull-request-available
• Assignee: Rui Li
• Reporter: Rui Li
• Created: 30/Oct/20 05:57
• Updated: 04/Nov/20 03:40
• Resolved: 04/Nov/20 03:40

Description

Otherwise, calling a function expecting a not null boolean argument will fail with argument type mismatch.

Issue Links

• links to: GitHub Pull Request #13851