[FLINK-25158] Fix formatting for true, false and null to uppercase

• Type: Sub-task
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 1.15.0
• Component/s: Table SQL / Planner
• Labels: pull-request-available
• Assignee: Francesco Guardiani
• Reporter: Francesco Guardiani
• Created: 03/Dec/21 14:07
• Updated: 16/Dec/21 10:36
• Resolved: 16/Dec/21 08:46

Description

All the cast rules using the constant strings true, false and null should use TRUE, FALSE and NULL instead.

This behavior should be enabled only if legacy behavior is not enabled

Issue Links

• is blocked by: FLINK-25111 Introduce config option to keep previous CAST behaviour
• links to: GitHub Pull Request #18098