[CALCITE-4260] Support plan explain with dot format

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.27.0
• Component/s: core
• Labels: pull-request-available
• Assignee: Liya Fan
• Reporter: Liya Fan
• Created: 17/Sep/20 04:08
• Updated: 03/Jun/21 22:31
• Resolved: 14/Oct/20 07:33

Description

After supporting the dot explain format and the dot relwriter, we are ready to support plan explain with dot format. 

Issue Links

• is a child of: CALCITE-4197 Provide utility to visualize RelNode plans
• links to: GitHub Pull Request #2156