github.com/jackc/pgx/v5/pgtype.Float8Codec.DecodeDatabaseSQLValue (method, view implemented interface methods)

one use

	github.com/jackc/pgx/v5/pgtype (current package)
		float8.go#L354: func (c Float8Codec) DecodeDatabaseSQLValue(m *Map, oid uint32, format int16, src []byte) (driver.Value, error) {