Prisma Client Extension: support Prisma.validator

[KATT]

I got asked to make a feature request by @millsp #15074 (comment)

I always define a select: when doing queries (because otherwise we get the equivalent of select *), and want to do the equivalent to the below but with my default prisma client:

const postSelect = Prisma.validator<Prisma.PostSelect>()({
  // ..
})

Originally posted by @KATT in #15074 (comment)

[janpio]

Internal Note: This can not happen like this, but needs a workaround via an extension - which we should document.

[millsp]

We've worked on a PR that expands the capabilities of Prisma.validator to bring a more natural API while also working with any client (be it extended or non-extended). Feedback welcome :)