US 12,079,206 B2
Transmitting change data capture events during database replication
Narsimha Reddy Challa, Hyderabad (IN); Swaroop Jayanthi, Hyderabad (IN); Komalapriya J, Rajapalayam (IN); and Ramalinga Raju Kalidindi, Hyderabad (IN)
Assigned to Salesforce, Inc., San Francisco, CA (US)
Filed by Salesforce, Inc., San Francisco, CA (US)
Filed on Dec. 29, 2022, as Appl. No. 18/091,313.
Prior Publication US 2024/0220484 A1, Jul. 4, 2024
Int. Cl. G06F 16/23 (2019.01); G06F 16/27 (2019.01)
CPC G06F 16/2386 (2019.01) [G06F 16/273 (2019.01)] 20 Claims
OG exemplary drawing
 
1. A method for replicating databases, the method comprising:
receiving a request to replicate a source database system to a target database system;
sending a change data stream from the source database system to the target database system, the change data stream comprising events corresponding to database operations performed by the source database system to be applied to the target database system;
wherein the sending comprises:
receiving an event object corresponding to a given database operation, wherein the event object comprises a set of attributes describing an event;
executing a plurality of tasks based on the event object, the plurality of tasks including:
a transmission task for sending a first subset of the set of attributes to the target database system, wherein the first subset of attributes is usable by the target database system to apply changes caused by the given database operation, and
a second task processing a second subset of the set of attributes;
splitting the event object into a first partial event object including the first subset of attributes and a second partial event object including the second subset of attributes; and
executing the second task in parallel with execution of the transmission task, the transmission task sending the first partial event object to the target database system.