[FLINK-11074] Improve the harness test to make it possible test with state backend

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.8.0
• Component/s: Table SQL / API
• Labels: pull-request-available
• Assignee: Dian Fu
• Reporter: Dian Fu
• Created: 05/Dec/18 08:37
• Updated: 31/Jan/19 14:08
• Resolved: 31/Jan/19 14:08

Description

Currently, the harness test can only test without state backend. If you use a DataView in the accumulator of the aggregate function, the DataView is a java object and held in heap, not replaced with StateMapView/StateListView which values are actually held in the state backend. We should improve the harness test to make it possible to test with state backend. Otherwise, issues such as FLINK-10674 could have never been found. With this harness test available, we could test the built-in aggregate functions which use the DataView more fine grained.

Issue Links

• duplicates: FLINK-9232 Add harness test for AggregationCodeGenerator
• links to: GitHub Pull Request #7253