Great question. We have a deletion endpoint that allows sessions (think users) to be deleted. All memory artifacts are timestamped, and we run soft-deletes with deleted_at timestamps. This allows enterprises to execute retention strategies (keep all records for X months) and hard deletes / expungement at scale set by policy (all soft deletes must be expunged within 48 hours of a request).

One of the benefits of using Postgres + pgvector, is it is much easier to delete records from a vector index versus using a vector database or Redis. While Redis has ttls for objects, there isn't an easy way to remove data from a vector index.