[CALCITE-5149] Refine RelMdColumnUniqueness for Aggregate by considering intersect keys between target keys and group keys

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.31.0
• Labels: pull-request-available
• Assignee: Chunwei Lei
• Reporter: Chunwei Lei
• Created: 12/May/22 07:19
• Updated: 03/Aug/22 16:21
• Resolved: 18/May/22 01:42

Description

For instance,

columns: [0, 1]
group keys: [0, 2]

If [0] is unique, then [0, 1] is unique too.

Issue Links

• links to: GitHub Pull Request #2805