Rezoom.SQL.Migrations

This namespace contains the migration configuration and some types representing migrations within your data model.

The MigrationConfig type

This is a record type with the following properties:

AllowRetroactiveMigrations : bool

If true, permit running migrations that have not been run on the database, but are older than other migrations that have been run. Typically this would only make sense in development, after merging migrations written by another developer.

See also the section on migration trees.

LogMigrationRan : Migration -> unit

This is a function which will be called after a migration has been run. Often it is nice to print the migration name to the console or perhaps to a text file.

MigrationConfig defaults

The static member MigrationConfig.Default is suitable for most typical usages. It is defined as:

{   AllowRetroactiveMigrations = false
    LogMigrationRan = fun _ -> ()
}