# Which Problems Are Solved
In versions previous to v2.66 it was possible to set a different
resource owner on project grants. This was introduced with the new
resource based API. The resource owner was possible to overwrite using
the x-zitadel-org header.
Because of this issue project grants got the wrong resource owner,
instead of the owner of the project it got the granted org which is
wrong because a resource owner of an aggregate is not allowed to change.
# How the Problems Are Solved
- The wrong owners of the events are set to the original owner of the
project.
- A new event is pushed to these aggregates `project.owner.corrected`
- The projection updates the owners of the user grants if that event was
written
# Additional Changes
The eventstore push function (replaced in version 2.66) writes the
correct resource owner.
# Additional Context
closes https://github.com/zitadel/zitadel/issues/9072
# Which Problems Are Solved
To improve performance a new table and method is implemented on
eventstore. The goal of this table is to index searchable fields on
command side to use it on command and query side.
The table allows to store one primitive value (numeric, text) per row.
The eventstore framework is extended by the `Search`-method which allows
to search for objects.
The `Command`-interface is extended by the `SearchOperations()`-method
which does manipulate the the `search`-table.
# How the Problems Are Solved
This PR adds the capability of improving performance for command and
query side by using the `Search`-method of the eventstore instead of
using one of the `Filter`-methods.
# Open Tasks
- [x] Add feature flag
- [x] Unit tests
- [ ] ~~Benchmarks if needed~~
- [x] Ensure no behavior change
- [x] Add setup step to fill table with current data
- [x] Add projection which ensures data added between setup and start of
the new version are also added to the table
# Additional Changes
The `Search`-method is currently used by `ProjectGrant`-command side.
# Additional Context
- Closes https://github.com/zitadel/zitadel/issues/8094
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.
