Patent ID: 11928099
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A system, comprising:
at least one processor; and
a memory, storing program instructions that when executed by the at least one processor, cause the at least one processor to implement a database system, the database system configured to:
record a plurality of updates to respective items in a data set stored in a change log ordered by respective time values assigned to the plurality of updates;
update an in-memory table to include the respective items according to the plurality of updates with respective time values;
detect an event to seal the in-memory table from subsequent updates, wherein the subsequent updates are stored in the change log and used to update a new in-memory table;
generate a persistent data object that orders the respective items according both respective keys of the respective items and the respective time values; and
store the persistent data object as part of a backup of the data set.