[SPARK-11451] Support single distinct count on multiple columns

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.6.0
• Component/s: SQL
• Assignee: Herman van Hövell
• Reporter: Herman van Hövell
• Created: 02/Nov/15 10:10
• Updated: 08/Nov/15 19:06
• Resolved: 08/Nov/15 19:06

Description

The new aggregation code path does not support distinct counting on multiple colums. For example:

SELECT COUNT(DISTINCT a, b) FROM c

Issue Links

• links to: [Github] Pull Request #9409 (hvanhovell)