[FLINK-26283] Harden AggregateCall serialization in JSON plan

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.15.0
• Component/s: Table SQL / Planner
• Labels: pull-request-available
• Assignee: Timo Walther
• Reporter: Timo Walther
• Created: 21/Feb/22 14:11
• Updated: 25/Feb/22 08:51
• Resolved: 25/Feb/22 08:51

Description

Similar to FLINK-25385, we also need to revisit AggregateCall serialization.

• It should not contain Java serialization.
• It should support all kinds of agg functions.
• It should not support legacy stacks.

Issue Links

• links to: GitHub Pull Request #18872