ObjSQLite3  Diff

	case SQLITE_BLOB:
		return [OFData
		    dataWithItems: sqlite3_column_blob(_stmt, column)
			    count: sqlite3_column_bytes(_stmt, column)];
	case SQLITE_NULL:
		return [OFNull null];
	default:
		OF_ENSURE(0);
		OFEnsure(0);
	}
}

- (size_t)columnCount
{
	return sqlite3_column_count(_stmt);
}