[SPARK-32376] Make unionByName null-filling behavior work with struct columns

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.1.0
• Fix Version/s: 3.1.0
• Component/s: SQL
• Assignee: L. C. Hsieh
• Reporter: Mukul Murthy
• Created: 20/Jul/20 22:11
• Updated: 02/May/22 21:00
• Resolved: 16/Oct/20 21:49

Description

https://issues.apache.org/jira/browse/SPARK-29358 added support for unionByName to work when the two datasets didn't necessarily have the same schema, but it does not work with nested columns like structs.

Issue Links

• is cloned by: SPARK-39089 Make unionByName null-filling behavior work with Array/Array of Structs columns
• links to: [Github] Pull Request #29587 (viirya)