[SPARK-28056] Document SCALAR_ITER Pandas UDF

• Type: Documentation
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: Documentation, PySpark
• Target Version/s: 3.0.0
• Assignee: Xiangrui Meng
• Reporter: Xiangrui Meng
• Created: 14/Jun/19 18:52
• Updated: 28/Jun/19 22:14
• Resolved: 18/Jun/19 03:52

Description

After SPARK-26412, we should document the new SCALAR_ITER Pandas UDF so user can discover the feature and learn how to use it.

Issue Links

• is blocked by: SPARK-26412 Allow Pandas UDF to take an iterator of pd.DataFrames
• links to: GitHub Pull Request #24897
• links to: GitHub Pull Request #25005