[FLINK-2684] Make TypeInformation non-serializable again by removing Table API's need for it

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Won't Fix
• Component/s: Table SQL / API
• Assignee: Unassigned
• Reporter: Till Rohrmann
• Created: 15/Sep/15 17:19
• Updated: 02/Oct/19 17:42
• Resolved: 22/Mar/17 09:36

Description

Currently, the TypeInformations must be serializable because they are shipped with UDFs of the Table API to the TMs. There the Table API code is generated and compiled. By generating the code on the client and shipping the code as strings, we could get rid of this dependency. As a consequence, the TypeInformations can be non-serializable again, as they were intended to be.

Maybe aljoscha can provide some more implementation details here.