Prisma

I’m now seeing the following issue on `2.6.0-dev47`, where specifying a particular `schema` name in my postgres database causes the initial migration not to run at all:

```    PrismaAdapter: Error: Command failed: yarn prisma migrate save --name init --experimental --schema .prisma/schema.prisma
    Error: Failure during a migration command: Connector error. (error: Error querying the database: No such table: broken._Migration```


<https://github.com/prisma/migrate/issues/572>

Appears to be a regression introduced in `dev46`.

Thanks for the issue! We will check that :slightly_smiling_face: