[SPARK-9296] variance, var_pop, and var_samp aggregate functions

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.6.0
• Component/s: SQL
• Target Version/s: 1.6.0
• Assignee: Seth Hendrickson
• Reporter: Yin Huai
• Created: 24/Jul/15 04:41
• Updated: 03/Nov/15 22:54
• Resolved: 03/Nov/15 22:48

Description

A short introduction on how to build aggregate functions based on our new interface can be found at https://issues.apache.org/jira/browse/SPARK-4366?focusedCommentId=14639921&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14639921.

Issue Links

• is related to: SPARK-11490 variance should alias var_samp instead of var_pop
• links to: [Github] Pull Request #8778 (JihongMA)