[SPARK-9143] Add planner rule for automatically inserting Unsafe <-> Safe row format converters

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.5.0
• Component/s: SQL
• Target Version/s: 1.5.0
• Epic Link: Tungsten Phase 1
• Assignee: Josh Rosen
• Reporter: Josh Rosen
• Shepherd: Michael Armbrust
• Created: 17/Jul/15 21:27
• Updated: 18/Jul/15 18:08
• Resolved: 18/Jul/15 18:08

Description

Now that we have two different internal row formats, UnsafeRow and the old Java-object-based row format, we end up having to perform conversions between these two formats. These conversions should not be performed by the operators themselves; instead, the planner should be responsible for inserting appropriate format conversions when they are needed.

Issue Links

• links to: [Github] Pull Request #7482 (JoshRosen)