[SPARK-4233] Simplify the Aggregation Function implementation

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.5.0
• Component/s: SQL
• Assignee: Cheng Hao
• Reporter: Cheng Hao
• Created: 05/Nov/14 02:23
• Updated: 22/Jul/15 20:24
• Resolved: 22/Jul/15 06:26

Description

Currently, the UDAF implementation is quite complicated, and we have to provide distinct & non-distinct version.

Issue Links

• contains: SPARK-4234 Always do paritial aggregation
• is depended upon by: SPARK-4367 Partial aggregation support the DISTINCT aggregation
• requires: SPARK-4573 Support SettableStructObjectInspector for function "wrap" in HiveObjectInspectors
• links to: [Github] Pull Request #3247 (chenghao-intel)
• links to: [Github] Pull Request #5542 (chenghao-intel)
• links to: [Github] Pull Request #7458 (yhuai)