package postgres

Import Path
	github.com/golang-migrate/migrate/v4/database/postgres (on go.dev)

Dependency Relation
	imports 12 packages, and imported by 2 packages

Involved Source Files

	      postgres.go
Package-Level Type Names (total 2, both are exported)

	/* sort exporteds by: alphabet | popularity */
	 type Config (struct)

		Fields (total 3, all are exported)
			DatabaseName string
			MigrationsTable string
			SchemaName string
		As Inputs Of (at least one exported)
			func WithInstance(instance *sql.DB, config *Config) (database.Driver, error)

	 type Postgres (struct)

		Fields (total 4, none are exported)
			/* 4 unexporteds ... *//* 4 unexporteds: */
			config *Config
				Open and WithInstance need to guarantee that config is never nil

			conn *sql.Conn
				Locking and unlocking need to use the same connection

			db *sql.DB
			isLocked bool
		Methods (total 9, in which 8 are exported)
			(*T) Close() error
			(*T) Drop() (err error)
			(*T) Lock() error
				https://www.postgresql.org/docs/9.6/static/explicit-locking.html#ADVISORY-LOCKS

			(*T) Open(url string) (database.Driver, error)
			(*T) Run(migration io.Reader) error
			(*T) SetVersion(version int, dirty bool) error
			(*T) Unlock() error
			(*T) Version() (version int, dirty bool, err error)
			/* one unexported ... *//* one unexported: */
			(*T) ensureVersionTable() (err error)
				ensureVersionTable checks if versions table exists and, if not, creates it.
				Note that this function locks the database, which deviates from the usual
				convention of "caller locks" in the Postgres type.

		Implements (at least 2, both are exported)
			*T : github.com/golang-migrate/migrate/v4/database.Driver
			*T : io.Closer


Package-Level Functions (total 5, in which 1 are exported)

	 func WithInstance(instance *sql.DB, config *Config) (database.Driver, error)
	/* 4 unexporteds ... *//* 4 unexporteds: */
	 func computeLineFromPos(s string, pos int) (line uint, col uint, ok bool)
	 func init()
	 func runesCount(input []rune, target rune) int
	 func runesLastIndex(input []rune, target rune) int
Package-Level Variables (total 5, all are exported)

	  var DefaultMigrationsTable string
	  var ErrDatabaseDirty error
	  var ErrNilConfig error
	  var ErrNoDatabaseName error
	  var ErrNoSchema error
Package-Level Constants (only one, which is unexported)

	/* one unexported ... *//* one unexported: */
	const newLine = 10

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