[FLINK-6789] Remove duplicated test utility reducer in optimizer

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.4.0
• Fix Version/s: 1.3.2, 1.4.0
• Component/s: API / DataSet, Tests
• Assignee: zhangminglei
• Reporter: Chesnay Schepler
• Created: 31/May/17 16:45
• Updated: 28/Feb/19 14:30
• Resolved: 01/Jul/17 12:24

Description

The DummyReducer and SelectOneReducer in org.apache.flink.optimizer.testfunctions are identical; we could remove one of them.

Issue Links

• links to: GitHub Pull Request #4216