[SPARK-30200] Add ExplainMode for Dataset.explain

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: SQL
• Assignee: Takeshi Yamamuro
• Reporter: Takeshi Yamamuro
• Created: 10/Dec/19 07:57
• Updated: 16/Dec/19 12:35
• Resolved: 10/Dec/19 17:52

Description

This pr targets to add ExplainMode for explaining Dataset/DataFrame with a given format mode (ExplainMode). ExplainMode has four types along with the SQL EXPLAIN command: Simple, Extended, Codegen, Cost, and Formatted.

Issue Links

• is related to: SPARK-30255 Support explain mode in SparkR df.explain
• is related to: SPARK-30231 Support explain mode in PySpark df.explain
• relates to: SPARK-27395 New format of EXPLAIN command
• links to: GitHub Pull Request #26829
• links to: GitHub Pull Request #26851
• links to: GitHub Pull Request #26898
• links to: GitHub Pull Request #26903