[FLINK-4736] Don't duplicate fields in Ordering

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Implemented
• Affects Version/s: 1.2.0
• Fix Version/s: 1.2.0
• Assignee: Greg Hogan
• Reporter: Greg Hogan
• Created: 04/Oct/16 15:37
• Updated: 28/Feb/19 13:21
• Resolved: 06/Oct/16 21:12

Description

Duplicate fields should not be appended to an ordering. In an ordering each subsequent field is only used as a comparison when all prior fields test equal; therefore, a repeated field cannot contribute to the ordering.

Issue Links

• links to: GitHub Pull Request #2601