[SPARK-18892] Alias percentile_approx approx_percentile

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.1.1, 2.2.0
• Component/s: SQL
• Target Version/s: 2.1.1, 2.2.0
• Assignee: Reynold Xin
• Reporter: Reynold Xin
• Created: 16/Dec/16 00:45
• Updated: 16/Dec/16 05:58
• Resolved: 16/Dec/16 05:58

Description

percentile_approx is the name used in Hive, and approx_percentile is the name used in Presto. approx_percentile is actually more consistent with our approx_count_distinct. Given the cost to alias SQL functions is low (one-liner), it'd be better to just alias them so it is easier to use.

Issue Links

• relates to: SPARK-16283 Implement percentile_approx SQL function
• links to: [Github] Pull Request #16300 (rxin)