[SPARK-18998] Add a cbo conf to switch between default statistics and cbo estimated statistics

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.2.0
• Fix Version/s: 2.2.0
• Component/s: SQL
• Assignee: Zhenhua Wang
• Reporter: Zhenhua Wang
• Created: 26/Dec/16 06:06
• Updated: 03/Jan/17 04:35
• Resolved: 03/Jan/17 04:35

Description

We need a cbo configuration to switch between default stats and estimated stats. We also need a new statistics method in LogicalPlan with conf as its parameter, in order to pass the cbo switch and other estimation related configurations in the future.

Issue Links

• links to: [Github] Pull Request #16401 (wzhfy)