sqlite - sqlite3_step在IOS 8.2上永远存在

Question

我正在运行以下选择查询，它在iOS 8.2之前可以100％工作。此查询在iOS 8.1和更早版本中返回了完美的结果集。该应用程序停留在sqlite3_step上，它将永久完成。有人知道为什么吗？我的应用卡在用户设备上。下面是查询和代码。

NSString *sqlStatement = @"Select W.woorde, R.woorde, W.woordIDs, R.woordIDs from masterWoorde W, masterWoorde R, masterWaardes WD, masterWoorde Rr where Rr.woorde LIKE ? And Rr.woordIDs=WD.skoonLeidraadID and WD.leidraadID=W.woordIDs and WD.resultaatID=R.woordIDs ORDER BY W.woorde COLLATE NOCASE, R.woorde COLLATE NOCASE";

if (prepareStatus == SQLITE_OK) {
            sqlite3_bind_text(select_statement, 1, [dboObject.frases UTF8String], -1, SQLITE_STATIC);

            while (sqlite3_step(select_statement) == SQLITE_ROW) {

                productSModel * aProduct = [[productSModel alloc] init];
                aProduct.frases = [NSString stringWithUTF8String:(char *)sqlite3_column_text(select_statement, 0)];
                aProduct.ABC = [NSString stringWithUTF8String:(char *)sqlite3_column_text(select_statement, 1)];
                aProduct.CDE = sqlite3_column_int(select_statement, 2);
                aProduct.FGH = sqlite3_column_int(select_statement, 3);

                [arrResult addObject:aProduct];
            }
        }

Answer 1

此问题可追溯到iOS 8.1和iOS 8.2之间的SQLite更改。见Sqlite3 query gets really slow under iOS 8.2