[SPARK-41633] Identify aggregation expression in the nodePatterns of PythonUDF

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Won't Do
• Affects Version/s: 3.4.0
• Component/s: SQL
• Assignee: Gengliang Wang
• Reporter: Gengliang Wang
• Created: 20/Dec/22 20:28
• Updated: 05/Jan/23 20:08
• Resolved: 05/Jan/23 20:08

Description

When a PythonUDF is evaluated as SQL_GROUPED_AGG_PANDAS_UDF, we can mark it as AGGREGATE_EXPRESSION in the `nodePatterns`. So that we can check whether an expression contains aggregation with a handy way: `expr.containsPattern(AGGREGATE_EXPRESSION)` 

Issue Links

• links to: [Github] Pull Request #39142 (gengliangwang)
• links to: [Github] Pull Request #39142 (gengliangwang)