[CALCITE-966] VolcanoPlanner should clear ruleNames in order to avoid rule name conflicting error

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.6.0
• Component/s: core
• Assignee: Jinfeng Ni
• Reporter: Jinfeng Ni
• Created: 13/Nov/15 23:21
• Updated: 21/Jan/16 22:20
• Resolved: 30/Nov/15 23:24

Description

When VolcanoPlanner is called multiple times through Frameworks, it may encounter rule name conflicting error, if the first ruleset and second ruleset have rules with identical name.

The fix is to simply clear the set of ruleNames in VolcanoPlanner.clear() method.

Issue Links

• links to: PR 167