[FLINK-25156] DISTINCT is not handled correctly by CastRules

• Type: Sub-task
• Status: Closed
• Priority: Major
• 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 14:03
• Updated: 08/Dec/21 14:31
• Resolved: 08/Dec/21 14:31

Description

We need to support DISTINCT types in CastRuleProvider, or with some sort of meta rule, so every rule can support it.

Issue Links

• links to: GitHub Pull Request #18030