[SPARK-14432] Add API to calculate the approximate quantiles for multiple columns

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Duplicate
• Component/s: SQL
• Assignee: L. C. Hsieh
• Reporter: L. C. Hsieh
• Created: 06/Apr/16 14:30
• Updated: 15/Apr/16 20:36
• Resolved: 15/Apr/16 03:53

Description

As we have the underlying implementation to calculate the approximate quantiles for multiple columns, I think we have no reason only providing API to calculate the approximate quantiles for just one column at a time. We should add API to do multiple columns too.

Issue Links

• duplicates: SPARK-14352 approxQuantile should support multi columns
• links to: [Github] Pull Request #12207 (viirya)