[FLINK-21070] Overloaded aggregate functions cause converter errors

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.11.4, 1.12.2, 1.13.0
• Component/s: Table SQL / Planner
• Labels: pull-request-available
• Assignee: Timo Walther
• Reporter: Timo Walther
• Created: 21/Jan/21 10:35
• Updated: 28/May/21 07:12
• Resolved: 22/Jan/21 20:42

Description

It seems the converter reuse is invalid. This causes overloaded aggregate functions to fail. See the discussion here:

https://lists.apache.org/thread.html/r8b7c2c820f9e76ab1520ad8516f303c0de85e99e8d9faa52591b7214%40%3Cuser.flink.apache.org%3E

Issue Links

• duplicates: FLINK-20747 ClassCastException when using MAX aggregate function
• links to: GitHub Pull Request #14720