[FLINK-12726] Fix ANY type serialization

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.9.0
• Component/s: Table SQL / API
• Labels: pull-request-available
• Assignee: Timo Walther
• Reporter: Timo Walther
• Created: 04/Jun/19 08:46
• Updated: 26/Mar/21 21:33
• Resolved: 05/Jun/19 06:11

Description

Every logical type needs to be string serializable. In old versions we used Java serialization logic for it. Since an any type has no type information anymore but just type serializer, we can use the snapshot to write out an any type into properties in a backward compatible way.

However, the current serialization logic is wrong.

Issue Links

• links to: GitHub Pull Request #8612