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# Which Problems Are Solved Add the possibility to filter project resources based on project member roles. # How the Problems Are Solved Extend and refactor existing Pl/PgSQL functions to implement the following: - Solve O(n) complexity in returned resources IDs by returning a boolean filter for instance level permissions. - Individually permitted orgs are returned only if there was no instance permission - Individually permitted projects are returned only if there was no instance permission - Because of the multiple filter terms, use `INNER JOIN`s instead of `WHERE` clauses. # Additional Changes - system permission function no longer query the organization view and therefore can be `immutable`, giving big performance benefits for frequently reused system users. (like our hosted login in Zitadel cloud) - The permitted org and project functions are now defined as `stable` because the don't modify on-disk data. This might give a small performance gain - The Pl/PgSQL functions are now tested using Go unit tests. # Additional Context - Depends on https://github.com/zitadel/zitadel/pull/9677 - Part of https://github.com/zitadel/zitadel/issues/9188 - Closes https://github.com/zitadel/zitadel/issues/9190