This package provides type classes to allow backends to implement SQL DDL support for beam. This allows you to use beam syntax to write type-safe schema generation code. The package also provides features to introspect beam schemas, and support for automatic generation of migrations in SQL and Haskell formats. This is mostly a low-level support library. Most often, this library is used to write tooling to support DDL manipulation in your project, or to enable migrations support in beam backends. For a more turnkey solution for database migrations, consider the beam-migrate command line tool. This provides out-of-the-box support for migrations, schema change management, and version control, based on the features provided in this library.

Changes

0.3.2.0

Added haskellSchema shortcut

0.3.1.0

Add Semigroup instances to prepare for GHC 8.4 and Stackage nightly

0.3.0.0

  • Re-introduce backend parameter as Database type class
  • Move beam migration log schema to beam-migrate, since many applications will want to easily manage a database using the haskell-based migrations
  • Add bringUpToDate and bringUpToDateWithHooks to Database.Beam.Migrate.Simple, which can be used to bring a database up to date with the given migration.

0.2.0.0 -- 2018-01-20

  • First version. Released on an unsuspecting world.
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