Public UUID postgre migrate error !

Bug description

I created a new project from scratch then I added @id @default(dbgenerated("public.gen_random_uuid()")) one of id field.The database was created on PostgreSql.

After that, I want to add a new column to our existing schema.prisma .When I run npx prisma migrate dev It returns this error Migration 20210405204104_202005042340 failed to apply cleanly to a temporary database.

We are using custom uuid which describe like this => @id @default(dbgenerated(“public.gen_random_uuid()”)) @db.Uuid

How to reproduce

Steps to reproduce the behavior:

1. Go to schema.prisma
2. Add relation

model Author {
  id            String    @id @default(dbgenerated("public.gen_random_uuid()")) @db.Uuid
  name          String
  confirmedBy   User? @relation("User", fields: [confirmedById], references: [id])
  confirmedById String?   @db.Uuid
}

1. Run npx prisma migrate dev
2. See error

Error: P3006

Migration `20210405204104_202005042340` failed to apply cleanly to a temporary database. 
Error:
Database error
Error querying the database: db error: ERROR: function public.gen_random_uuid() does not exist
HINT: No function matches the given name and argument types. You might need to add explicit type casts.
   0: sql_migration_connector::flavour::postgres::sql_schema_from_migration_history
             at migration-engine/connectors/sql-migration-connector/src/flavour/postgres.rs:278
   1: sql_migration_connector::sql_database_migration_inferrer::validate_migrations
             at migration-engine/connectors/sql-migration-connector/src/sql_database_migration_inferrer.rs:88
   2: migration_core::api::DevDiagnostic
             at migration-engine/core/src/api.rs:95

Expected behavior

We were waiting for the database to be updated successfully migrated

Prisma information

model User { id String @id @default(dbgenerated(“public.gen_random_uuid()”)) @db.Uuid email String? Author Author[] @relation(“User”) }

model Author { id String @id @default(dbgenerated(“public.gen_random_uuid()”)) @db.Uuid name String confirmedBy User? @relation(“User”, fields: [confirmedById], references: [id]) confirmedById String? @db.Uuid }

Environment & setup

• OS: Mac OS
• Database: PostgreSQL
• Node.js version: v14.16.0
• Prisma version: 2.20.1

[tomhoule]

We have an internal issue about documenting this better.

[kokokenada]

This problem has been a major complication as I attempt to change from Hasura migrations to prisma migrate. The work around of adding CREATE EXTENSION pgcrypto; as described by https://www.prisma.io/docs/guides/database/developing-with-prisma-migrate/enable-native-database-functions (even as a separate initial migration) simply does not work when you run prisma migrate dev. The only workaround I have found so far is to use a shadow database and manually add the extension there.