# Which Problems Are Solved
Classic permission checks execute for every returned row on resource
based search APIs. Complete background and problem definition can be
found here: https://github.com/zitadel/zitadel/issues/9188
# How the Problems Are Solved
- PermissionClause function now support dynamic query building, so it
supports multiple cases.
- PermissionClause is applied to all list resources which support org
level permissions.
- Wrap permission logic into wrapper functions so we keep the business
logic clean.
# Additional Changes
- Handle org ID optimization in the query package, so it is reusable for
all resources, instead of extracting the filter in the API.
- Cleanup and test system user conversion in the authz package. (context
middleware)
- Fix: `core_integration_db_up` make recipe was missing the postgres
service.
# Additional Context
- Related to https://github.com/zitadel/zitadel/issues/9190
a2f60f2e7a