In 2.10.0 we introduced the prisma db push command that enables developers to update their database schema from a Prisma schema file without using migrations.

For the "opposite" motion (i.e., updating the Prisma schema from an existing database schema), we currently have the prisma introspect command. In this release, prisma introspect is being renamed to prisma db pull. However, the prisma introspect command will be kept around for a few more releases so that you have enough time to switch over to the new command.

Here is how we are planning to execute the renaming:

In this release, we are introducing a new command prisma db pull, which behaves exactly the same as prisma introspect.
We will at some point in the near future add a deprecation warning to the prisma introspect CLI command.
Eventually, prisma introspect will be removed.

There is no specific timeline to execute on this deprecation and we want to make sure we give developers a generous period of time to switch over.

Relation syntax will not be updated automatically any more

Prisma has a set of rules for defining relations between models in the Prisma schema.

The prisma format command automatically helps to apply these rules by inserting missing pieces. As an example, consider this data model with an invalid relation:

model User {
  id    String  @id
  name  String?
  posts Post[]
}

model Post {
  id       String  @id
  authorId String?
  author   User?   // not valid because the `@relation` attribute is missing
}

This example is not valid because the @relation attribute is missing. Running npx prisma format, automatically inserts the missing attribute:

model User {
  id    String  @id
  name  String?
  posts Post[]
}

model Post {
  id       String  @id
  authorId String?
+ author   User?   @relation(fields: [authorId], references: [id])
}

In previous releases, this expansion logic was applied automatically in several scenarios without running the formatter (by running npx prisma format explicitly, or formatting via VS code), e.g. when running prisma migrate. While helpful in some scenarios, these "magic" insertions often resulted in others errors that were harder to interpret and to debug for developers and ourselves.

In this release, the "magical" instertions are removed and developers need to explicitly run npx prisma format if they want still make use of them.

More flexible seeding in TypeScript

The ts-node command options can now be customized via package.json to pass specific options to ts-node. This makes prisma db seed work with tools that have specific requirements when used with TypeScript, such as Next.js.

Here is an example that works with Next.js:

{
  "name": "my-project",
  "version": "1.0.0",
  "scripts": {
    "ts-node": "ts-node --compiler-options '{\"module\":\"CommonJS\"}'"
  },
  "devDependencies": {
    "@types/node": "^14.14.21",
    "ts-node": "^9.1.1",
    "typescript": "^4.1.3"
  }
}

New Upsert API for Prisma Client Go

Prisma Client Go now supports upsert operations:

post, _ := client.Post.UpsertOne(
    // query
    Post.ID.Equals("upsert"),
).Create(
    // set these fields if document doesn't exist already
    Post.Title.Set("title"),
    Post.Views.Set(0),
    Post.ID.Set("upsert"),
).Update(
    // update these fields if document already exists
    Post.Title.Set("new-title"),
    Post.Views.Increment(1),
).Exec(ctx)

Learn more in the documentation and share your feedback in the #prisma-client-go channel on Slack.

Fixes and improvements

Prisma Client

Prisma Migrate

Prisma Studio

Language tools (e.g. VS Code extension)

Add autocompletion for shadowDatabaseUrl in the datasource block

Prisma engines

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Prisma: 2.18.0 Release

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prisma introspect is becoming prisma db pull