Change error code severity for syslog?

Hi

The Postgres errors when sent to syslog have their severity levels
translated as follows:
https://www.postgresql.org/docs/current/runtime-config-logging.html#RUNTIME-CONFIG-SEVERITY-LEVELS

I have a system which raises an alert every time syslog receives an ERROR
(or higher severity level).

For most of the Postgres errors, translating it to WARNING level in syslog
works, however, I wanted to translate *ERROR codes XX000/1/2* in Postgres
to be ERROR in syslog as well, so that it triggers the alert system and I
can notified.

Is there any way to change the severity level for these specific error
codes in Postgres?

Thanks

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