[FLINK-16524] Optimize the execution of Python UDF to use generator to eliminate unnecessary function calls

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Resolved
• Fix Version/s: 1.11.0
• Component/s: API / Python
• Labels: pull-request-available
• Assignee: Huang Xingbo
• Reporter: Huang Xingbo
• Created: 10/Mar/20 14:38
• Updated: 24/Mar/20 09:53
• Resolved: 13/Mar/20 09:24

Description

Optimize the result of FlattenRowCoder and ArrowCoder to generator to eliminate unnecessary function calls.

Issue Links

• links to: GitHub Pull Request #11374