Patent ID: 11868330
Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 5:
6. The method according to claim 5, wherein in a process of executing transaction on the target data, a plurality of versions of index tables are used for data storage, each index table has a corresponding version number to indicate data change, a version number of an index table after the transaction is committed is different from a version number of an index table before the transaction is committed; and after the determining an item corresponding to the change information in the second index table based on the corresponding row number in the second index table to update the second index table, the method further comprises:
determining a version number corresponding to the first storage engine according to the change information, to generate a log table in the second storage engine configured to record an association relationship between the first index table having the version number corresponding to the change information and the second index table in the second storage engine; and
determining a data record corresponding to an adjacent version number of the first storage engine in the log table to perform data recovery.