[CALCITE-3949] RelDistributions.of() and RelCollations.of() should canonize trait instance

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.23.0
• Component/s: core
• Assignee: Unassigned
• Reporter: Haisheng Yuan
• Created: 22/Apr/20 04:17
• Updated: 24/May/20 12:00
• Resolved: 28/Apr/20 20:02

Description

Otherwise, in Sort constructor, the assertion might fail.

assert traits.containsIfApplicable(collation)