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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Achilleas Mantzios <a.mantzios@cloud.gatewaynet.com>
Cc: pgsql-admin@lists.postgresql.org
Subject: Re: application_name backend (not) reporting back to the client : pgbouncer, PgSQL 16.1, pgbouncer 1.21.0
Date: Sat, 09 Dec 2023 17:08:53 -0500
Message-ID: <1750352.1702159733@sss.pgh.pa.us> (raw)
In-Reply-To: <addc9291-d3a3-4545-9805-8d1f00978614@cloud.gatewaynet.com>
References: <e33e0231-77d7-4dd7-4b7c-97af1d0e091b@cloud.gatewaynet.com>
	<1436714.1702046865@sss.pgh.pa.us>
	<06bf30c8-371e-5575-e1cc-a6dc1140b8af@cloud.gatewaynet.com>
	<1454680.1702054572@sss.pgh.pa.us>
	<ff2ee637-f3b6-424d-8ebf-d7cb089487de@cloud.gatewaynet.com>
	<1552992.1702076062@sss.pgh.pa.us>
	<0028c29e-26f3-48e7-9201-f94d2579b9ba@cloud.gatewaynet.com>
	<addc9291-d3a3-4545-9805-8d1f00978614@cloud.gatewaynet.com>

Achilleas Mantzios <a.mantzios@cloud.gatewaynet.com> writes:
> Hi again, I am puzzled with your observations, this is what I get with 
> psql straight against PostgreSQL no pgbouncer involved :

> command :
> psql "postgresql://amantzio@localhost:5432/dynacom?application_name="

> ...
> public.S....is_superuser.on.S....application_name..S...&default_transaction_read_only.off.S....scram_iterations.4096.S....DateStyle.ISO, 
                              ^^^^^^^^^^^^^^^^^^^^^^^

I see the report of application_name with an empty-string value right
there.

> the client does not send the application_name

I do not know what you mean by that, but maybe your client code has
some special-case behavior for an empty string?

			regards, tom lane





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