Re: SCRAM pass-through authentication for postgres_fdw

[Alexander Pyhalov]

Matheus Alcantara писал(а) 2025-06-25 14:36:

Hi, thanks for testing and reporting the issue!

On 25/06/25 11:37, Alexander Pyhalov wrote:

Hi.
I've started to look at this feature and found an issue - MyProcPort
can be not set if connection is initiated
by some bgworker. (Internally we use one for statistics collection.)
In other places (for example, in be_gssapi_get_delegation())
there are checks that port is not NULL. Likely postgres_fdw and dblink
should do something similar.

In this case the bgworker is used to collect statistics for the fdw
tables? If that's the case, since we don't have the MyProcPort and the

properties? If that's also the case I think that we may have a problem
because the goal of this feature is to avoid storing the password on
user mapping.

Do you have steps to reproduce the issue?

scram keys, will it use the user and password configured on user mapping

You'll see bgworker crash.

--
Best regards,
Alexander Pyhalov,
Postgres Professional

Hi. I've created a simple extension to reproduce an issue. Just put attached files to contrib and run make check.

testex.tar.gz
Description: application/gzip