Duplicate identifier 'CheckSelect'

[rickyhopkins]

Bug description

I have a model in my prisma schema called Check which looks like it causes prisma to generate conflicting types.

In .prisma/client/index.ts I am getting a typescript warning as there are 2 CheckSelect types:

  type CheckSelect<T, S, U> = T extends SelectAndInclude
    ? 'Please either choose `select` or `include`'
    : T extends HasSelect
    ? U
    : T extends HasInclude
    ? U
    : S
  export type CheckSelect = {
    id?: boolean
    name?: boolean
    checkType?: boolean
  }

How to reproduce

1. Add a Check model to prisma.schema
2. run prisma generate
3. See error

I dont think there is anything complicated going on here.

Expected behavior

I would expect prisma to either warn me that I cannot create a model called Check or handle the conflict in another way.

Prisma information

I think this can be replicated with something as simple as this:

model Check {
  id          String        @id @default(uuid())
}

Environment & setup

• OS: Windows
• Database: PostgreSQL
• Node.js version: 14

Prisma Version

prisma                  : 3.0.2
@prisma/client          : 3.0.2
Current platform        : windows
Query Engine (Node-API) : libquery-engine 2452cc6313d52b8b9a96999ac0e974d0aedf88db (at node_modules\@prisma\engines\query_engine-windows.dll.node)
Migration Engine        : migration-engine-cli 2452cc6313d52b8b9a96999ac0e974d0aedf88db (at node_modules\@prisma\engines\migration-engine-windows.exe)
Introspection Engine    : introspection-core 2452cc6313d52b8b9a96999ac0e974d0aedf88db (at node_modules\@prisma\engines\introspection-engine-windows.exe)
Format Binary           : prisma-fmt 2452cc6313d52b8b9a96999ac0e974d0aedf88db (at node_modules\@prisma\engines\prisma-fmt-windows.exe)
Default Engines Hash    : 2452cc6313d52b8b9a96999ac0e974d0aedf88db
Studio                  : 0.423.0

[janpio]

Can confirm:

  type CheckSelect<T, S, U> = T extends SelectAndInclude
    ? 'Please either choose `select` or `include`'
    : T extends HasSelect
    ? U
    : T extends HasInclude
    ? U
    : S

and

  export type CheckSelect = {
    id?: boolean
  }

[SuryaElavazhagan]

I think we can prefix all auto generated interfaces with Prisma__ to avoid future type clashes

[SevInf]

This is fixed and the fix will be published as a part of 5.1 release. You can also check out 5.1.0-dev.25 dev snapshot - we do not recommend using dev snapshots in production, but it should be enough to verify the fix.

[subhendupsingh]

Tried the 5.1.0-dev.25, still getting the duplicate identifier error

node_modules/.prisma/client/index.d.ts:46587:15 - error TS2300: Duplicate identifier 'MediaCreateWithoutOrganizationInput'.

46587   export type MediaCreateWithoutOrganizationInput = {

[SevInf]

@subhendupsingh this issue is specifically about being able to name model Check. You error, even though also talks about duplicate identifier, is a different one. There were a bunch of other type clash fixes done recently, you can try to check 5.1.0-dev.61 version, which has all previously reported type conflicts fixed. If it still happens for you on that version, please, open a new issue and attach your schema.
Thank you!.