RisingWave Community - Is there a way to add a TTL to a table to expire older records?

RisingWave doesn't have explicit TTL functionality for base tables, but you can use window functions to enforce TTL for materialized views.
For base tables, you can create materialized views with window functions to manage TTL.
RisingWave recommends using Time Window or Temporal Filter as substitutes for explicit TTL functionality.
Experimental support for table TTL was abandoned to maintain consistency between tables, materialized views, and states.