[SPARK-13636] Direct consume UnsafeRow in wholestage codegen plans

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Component/s: SQL
• Assignee: L. C. Hsieh
• Reporter: L. C. Hsieh
• Created: 03/Mar/16 04:31
• Updated: 10/Mar/16 18:05
• Resolved: 10/Mar/16 18:05

Description

As shown in the wholestage codegen verion of Sort operator, when Sort is top of Exchange (or other operator that produce UnsafeRow), we will create variables from UnsafeRow, than create another UnsafeRow using these variables. We should avoid the unnecessary unpack and pack variables from UnsafeRows.

Issue Links

• links to: [Github] Pull Request #11484 (viirya)