github.com/jackc/pgx/v5/pgtype.Int8Codec.DecodeDatabaseSQLValue (method, view implemented interface methods)

one use

	github.com/jackc/pgx/v5/pgtype (current package)
		int.go#L1410: func (c Int8Codec) DecodeDatabaseSQLValue(m *Map, oid uint32, format int16, src []byte) (driver.Value, error) {