[SPARK-18663] Simplify CountMinSketch aggregate implementation

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.2.0
• Component/s: SQL
• Assignee: Reynold Xin
• Reporter: Reynold Xin
• Created: 01/Dec/16 02:01
• Updated: 02/Dec/16 05:38
• Resolved: 02/Dec/16 05:38

Description

SPARK-18429 introduced count-min sketch aggregate function for SQL, but the implementation and testing is more complicated than needed. This simplifies the test cases and removes support for data types that don't have clear equality semantics.

Issue Links

• links to: [Github] Pull Request #16093 (rxin)