Hi Fabien,

I've found them at the template functions chapter:

https://www.syslog-ng.com/technical-documents/doc/syslog-ng-open-source-edition/3.23/administration-guide/63#TOPIC-1268645

I agree with you, that these should be referenced and explained in grouping-by/patterndb chapters.

From: Fabien Wernli <wernli@in2p3.fr>
Sent: Wednesday, October 2, 2019 16:41
To: Gabor Nagy (gnagy) <Gabor.Nagy@oneidentity.com>
Cc: Syslog-ng users' and developers' mailing list <syslog-ng@lists.balabit.hu>
Subject: Re: Re: [syslog-ng] group-by() send all messages to destination() ?

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