[SPARK-26735] Verify plan integrity for special expressions

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: SQL
• Assignee: Kris Mok
• Reporter: Kris Mok
• Created: 26/Jan/19 00:39
• Updated: 27/Jan/19 06:29
• Resolved: 27/Jan/19 06:28

Description

Add verification of plan integrity with regards to special expressions being hosted only in supported operators. Specifically:

• AggregateExpression: should only be hosted in Aggregate, or indirectly in Window
• WindowExpression: should only be hosted in Window
• Generator: should only be hosted in Generate

Issue Links

• links to: GitHub Pull Request #23658