There's this extension https://postgresql-anonymizer.readthedocs.io/en/stable/ https://postgresql-anonymizer.readthedocs.io/en/stable/ which lets you do this,

There's this extension https://postgresql-anonymizer.readthedocs.io/en/stable/ https://postgresql-anonymizer.readthedocs.io/en/stable/ which lets you do this, eg: `MASKED WITH NULL` - though I don't have much hands on experience with it / haven't looked into it's implementation details so not sure what trade-offs it might come with. My general feeling is that it's an extension you'd apply to your human users, whilst exempting your machine users, but it feels like it could work for both in the context of something like postgrest