# Which Problems Are Solved
id_tokens issued for auth requests created through the login UI
currently do not provide a sid claim.
This is due to the fact that (SSO) sessions for the login UI do not have
one and are only computed by the userAgent(ID), the user(ID) and the
authentication checks of the latter.
This prevents client to track sessions and terminate specific session on
the end_session_endpoint.
# How the Problems Are Solved
- An `id` column is added to the `auth.user_sessions` table.
- The `id` (prefixed with `V1_`) is set whenever a session is added or
updated to active (from terminated)
- The id is passed to the `oidc session` (as v2 sessionIDs), to expose
it as `sid` claim
# Additional Changes
- refactored `getUpdateCols` to handle different column value types and
add arguments for query
# Additional Context
- closes#8499
- relates to #8501
This implementation increases parallel write capabilities of the eventstore.
Please have a look at the technical advisories: [05](https://zitadel.com/docs/support/advisory/a10005) and [06](https://zitadel.com/docs/support/advisory/a10006).
The implementation of eventstore.push is rewritten and stored events are migrated to a new table `eventstore.events2`.
If you are using cockroach: make sure that the database user of ZITADEL has `VIEWACTIVITY` grant. This is used to query events.
