[SPARK-43933] Add linear regression aggregate functions to Scala and Python

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.5.0
• Fix Version/s: 3.5.0
• Component/s: Connect, PySpark, SQL
• Assignee: Jiaan Geng
• Reporter: Ruifeng Zheng
• Created: 02/Jun/23 02:05
• Updated: 07/Jun/23 14:56
• Resolved: 07/Jun/23 14:56

Description

Add following functions:

• regr_avgx
• regr_avgy
• regr_count
• regr_intercept
• regr_r2
• regr_slope
• regr_sxx
• regr_sxy
• regr_syy

to:

• Scala API
• Python API
• Spark Connect Scala Client
• Spark Connect Python Client