HasNoKey() cause migration to generate table

[domdeger]

We use e.g. modelBuilder.Entity<QueryResult>().HasNoKey(); to register custom query result types for usage with "FromRawSql". We migrated from DbQuery<> as we moved along from ef core 2.2 .

Since ef core 3.1 new migrations include code to create table for the entity types marked with .HasNoKey(). The only way I was able to work around this behaviour was to call "ToView" on those types.

Steps to reproduce

[ajcvickers]

@domdeger Yes, this is correct. Improving the experience here is tracked by #17270