When I tried to use auto incremental materialized views in SQL Server (about 10 years ago) - they had so many limitations that they were virtually useless. I now use Postgres and this is the Number 1 feature that’s missing for me, there have been a few attempts that have unfortunately not made it into the core. I don’t understand why this critical capability is not even on the radar of the core developers - maybe this publicity from Materialize will raise its priority.