[SPARK-13383] Keep broadcast hint after column pruning

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: SQL
• Assignee: L. C. Hsieh
• Reporter: L. C. Hsieh
• Created: 19/Feb/16 06:33
• Updated: 24/Mar/16 00:53
• Resolved: 24/Feb/16 18:22

Description

When we do column pruning in Optimizer, we put additional Project on top of a logical plan. However, when we already wrap a BroadcastHint on a logical plan, the added Project will hide BroadcastHint after later execution.

Issue Links

• links to: [Github] Pull Request #11260 (viirya)
• links to: [Github] Pull Request #11355 (yhuai)