[CALCITE-3885] Reestablish trace logging for rules queue and Volcano planner

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.23.0
• Component/s: core
• Labels: pull-request-available
• Assignee: Roman Kondakov
• Reporter: Roman Kondakov
• Created: 28/Mar/20 09:49
• Updated: 24/May/20 11:59
• Resolved: 29/Mar/20 13:55

Description

After fixing CALCITE-3753 the opportunity of tracing the rules queue and VolcanoPlanner search space state is disappeared: i.e. RuleQueue.dump() method was removed. We should restore this opportunity because it affects planner's debugging capabilities.

Issue Links

• links to: GitHub Pull Request #1886