Vercel: Schema only change does not invalidate build cache

[janpio]

Switching provider from postgresql to mysql does not cause Prisma Client to be regenerated.

Deploy project with this first, observe error:

datasource db {
  provider = "postgresql"
  url      = "mysql://root:@127.0.0.1:3306/e2e-tests"
}

Switch to this and keep seeing the same error:

datasource db {
  provider = "mysql"
  url      = "mysql://root:@127.0.0.1:3306/e2e-tests"
}

[pantharshit00]

I can reproduce this.

Here is the reproduction deployment which is our vercel account:

• https://vercel.com/prisma/issue-7291
• https://issue-7291-drigger-prisma.vercel.app/api
• Logs of the failing deployment: https://vercel.com/prisma/issue-7291/8LuVeEr12nzDjawoZ8vN3sENTcwk/functions?name=team_FKpRq4HXay6RMp3Hd987KofN-a4a6888174e8793eb0b4aa18c9fadbd3fa

[janpio]

Users are obviously also experiencing this problem: #8312 (comment)

[millsp]

Related prisma/docs#3590