We need help to add the "SQLSTATE error code" (e%) field to the log_line_prefix parameter.

Question

Hi everyone, our audit verified a case where a read-only user appeared in the log as responsible for executing a DDL command, we performed all the necessary tests and saw that the command executed was not applied and we saw that even with an error the log is generated, so we need to add the field "SQLSTATE error code" (e%) in the log_line_prefix parameter to filter the results and remove the cases where the command was not applied. But the log_line_prefix parameter is blocked in AWS RDS, how can we get around this?

Answer

In AWS RDS, certain parameters, including log_line_prefix, are indeed managed and restricted for direct user modification due to the managed nature of the service, prioritizing stability and security. However, understanding the context and need to include "SQLSTATE error code" in your logs for clearer auditing and troubleshooting, here are a few approaches you might consider to address your requirement:

**Using RDS Event Subscriptions for Notifications**
While this doesn't directly modify the log_line_prefix, you can create RDS Event Subscriptions to notify you about specific database events, including errors. This can help in monitoring and reacting to specific error codes, although it's more about alerting than logging.

We need help to add the "SQLSTATE error code" (e%) field to the log_line_prefix parameter.

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