Supabase: function gen_random_uuid() does not exist

Bug description

I am trying to do npx prisma db push to my connection with supabase but I get the following error

Error: Database error Error querying the database: db error: ERROR: function gen_random_uuid() does not exist HINT: No function matches the given name and argument types. You might need to add explicit type cas ts. 0: sql_migration_connector::sql_database_step_applier::apply_migration at migration-engine/connectors/sql-migration-connector/src/sql_database_step_applier.rs :15

I want to generate unique uuids with gen_random_uuid(), According to me, supabase by default has PGCRYPTO installed.

then I would expect the following model to be correct

model Team {
  id          String   @id @default("gen_random_uuid()") @db.Uuid
  name        String
  slug        String   @unique
  description String?
  avatar      String?
  isDefault   Boolean  @default(false)
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt
  creatorId   String?  @db.Uuid
  members     User[]   @relation(references: [id])
  apps        App[]
}

How to reproduce

Expected behavior

No response

Prisma information

model Team {
  id          String   @id @default("gen_random_uuid()") @db.Uuid
  name        String
  slug        String   @unique
  description String?
  avatar      String?
  isDefault   Boolean  @default(false)
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt
  creatorId   String?  @db.Uuid
  members     User[]   @relation(references: [id])
  apps        App[]
}

Environment & setup

• OS: Mac OS,
• Database: PostgreSQL
• Node.js version: v16.0.0

Prisma Version

prisma               : 2.24.1
@prisma/client       : 2.24.1
Current platform     : darwin
Query Engine         : query-engine 18095475d5ee64536e2f93995e48ad800737a9e4 (at node_modules/@prisma/engines/query-engine-darwin)
Migration Engine     : migration-engine-cli 18095475d5ee64536e2f93995e48ad800737a9e4 (at node_modules/@prisma/engines/migration-engine-darwin)
Introspection Engine : introspection-core 18095475d5ee64536e2f93995e48ad800737a9e4 (at node_modules/@prisma/engines/introspection-engine-darwin)
Format Binary        : prisma-fmt 18095475d5ee64536e2f93995e48ad800737a9e4 (at node_modules/@prisma/engines/prisma-fmt-darwin)
Default Engines Hash : 18095475d5ee64536e2f93995e48ad800737a9e4
Studio               : 0.397.0

[iwatakeshi]

Try @default(dbgenerated("extensions.[name of function here]()")) @db.Uuid. The uuid function(s) is/are located under the extensions schema and this is the result I got when I introspected the database. I’m not sure if the dbgenerated() is needed though.

[tomhoule]

Hi @iwatakeshi — I haven’t tried it myself but your answer looks right. The “dbgenerated(…)” is necessary because this is a “raw” database-level default that migrate and introspection understand, but prisma client doesn’t, it just knows there’s a default.