如何仅提取 AWS RDS（Postgres 数据库）中的更改数据（CDC）并将更改数据转储到另一个 RDS postgres 实例？

Question

Is there a way to capture only change data in RDS Postgres instance and write those change records to another RDS Postgres DB instance for later use?

I have looked on few option like using Debezium but it doesn't seems to be helpful as I don't have to actually write to streams.

My requirement is that: 1) Load all the existing data to another DB at once 2) Capture the change data (delta) and store in a database (with same replica) and process the change data.

Answer 1

I have followed below steps to implement above scenario:

1) Written a Spring batch job which connects to RDS and does a full load once. 2) Once the full load is completed, we added logic to export WAL logs for CDC data and then put the data to stream to process further.

Not the very best solution but this solution worked well for the above scenario.