Source URL: https://docs.prisma.io/docs/orm/prisma-client/setup-and-configuration/database-polyfills

Database polyfills

Prisma Client provides features that are not achievable with relational databases. These features are referred to as “polyfills” and explained on this page.

Prisma Client provides features that are typically either not achievable with particular databases or require extensions. These features are referred to as polyfills. For all databases, this includes:

Initializing ID values with cuid and uuid values
Using @updatedAt to store the time when a record was last updated

For relational databases, this includes:

Implicit many-to-many relations

For MongoDB, this includes:

Relations in general - foreign key relations between documents are not enforced in MongoDB