[SPARK-14851] Support radix sort with nullable longs

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.1.0
• Component/s: Spark Core
• Target Version/s: 2.1.0
• Assignee: Eric Liang
• Reporter: Eric Liang
• Created: 22/Apr/16 17:59
• Updated: 11/Jun/16 22:42
• Resolved: 11/Jun/16 22:42

Description

The current radix sort cannot handle nullable longs, since there is no bit pattern available to represents nulls. These cases are probably best handled outside the radix sort logic e.g. by keeping nulls in a separate region of the array.

Issue Links

• links to: [Github] Pull Request #13161 (ericl)