Max length of SQl return string?

Phil Mayers p.mayers at
Thu Nov 28 15:54:56 CET 2013

On 28/11/13 14:41, Alexander Silveröhrt wrote:
> Hello,
> We are doing a query which are supposed to comeback with a bunch of
> subscriber accounts.
>   update request {
>                  Subscriber-Accounts := "%{sql-cisco-bng:SELECT
> GROUP_CONCAT(username SEPARATOR ';') FROM radcheck WHERE username LIKE
> '%{User-Name}%%'}"
>   }
> But it seems that there is a limit on how long the return string can be?

Well, it's a radius attribute, so it's probably 253 bytes.

Not sure if this limit is changed/removed in later versions of the 
server (e.g. for attributes which are internal, since they never go on 
the wire there's no protocol reason to limit their length)

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