Provides a basic Engine implementation that can be used to build and test new DB implementations.

Default directory for migration files (in the embed.FS).

Provided for Engine implementations that want to do something right after the connection is opened.

If the engine provides this hook, it will be run before a migrate up operation is performed.

DataSource is an interface that defines the options for a database connection.

Interface for specific database implementations using DBHandle.

Interface for DB maintenance functions.

If the engine provides this hook, it should return a list of key/value pairs that will be inserted into the environment before a migration is run.

This interface is to expose a method to supply supplemental data (beyond what sql.Stats provides), in healthcheacks.

BaseDataSource provides a basic DataSource implementation that's wrapped around a dsn string.

A function to be invoked before the underlying database connection is closed.

MaintenanceFunction is a function that can be called periodically to perform maintenance on the database.

StatementGenerator is a function that returns a prepared statement.