ForQueryRows encapsulates a lot of boilerplate when making db queries.

GetDB extracts the DB previously stored in ctx (or some parent of ctx) with WithDB.

Migrate executes database migrations.

QueryRowContext is just like the db.QueryRowContext method but additionally detects whether the query produces more than one row.

WithDB creates a child of the given context object containing a DB.

ErrMultipleRows is the error produced by Row.Scan when the query has produced more than one row.

Lease is the type of a lease acquired from a Lessor.

Lessor is a provider of leases.

Row is the type of result produced by QueryRowContext.