[SPARK-49366] Treat Union node as leaf in dataframe column resolution

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0.0
• Fix Version/s: 4.0.0
• Component/s: Connect
• Labels: pull-request-available
• Assignee: Ruifeng Zheng
• Reporter: Ruifeng Zheng
• Created: 23/Aug/24 05:36
• Updated: 27/Aug/24 01:25
• Resolved: 27/Aug/24 01:24

Issue Links

• links to: GitHub Pull Request #47853