Support for `extendedWhereUnique` behavior

[kovaxis]

Problem

When supplying parameters for unique queries like update or find_unique, I cannot supply additional/redundant constraints other than the unique constraints.

Suggested solution

The JS Prisma Client solved this with the extendedWhereUnique preview feature, which was stabilized in version 5.0.0. I can't seem to get this behavior with Prisma Client Python.

Alternatives

Just not using extended unique queries. This leads to bad usability and/or unnecessary database queries.

Additional context

This is useful for example when authenticating. Consider for example:

prisma.sensitiveinfo.find_unique(where={
    "id": id,
    "owner": owner,
})

owner is redundant, but it is still useful.