Hi Jason,

Many thanks for your message!
The fact is that I realize that I can access to transaction information in 
other environments still using ZEO with FileStorage, not RelStorage!
For RelStorage I'm not planning to switch to history-mode any way...  ;)

Best regards,
Thierry

Le mercredi 13 novembre 2019 13:39:54 UTC+1, Jason Madden a écrit :
>
> Hi, 
>
> RelStorage in history-free mode has never stored transaction information 
> (description, user, extension). That's part of how it reduces the amount of 
> time and storage space needed. RelStorage only preserves those details in 
> history-preserving mode. 
>
> Note that it's not possible to simply switch between history-free and 
> history-preserving modes in an existing RDBMS schema; the data must be 
> copied into a new schema with the alternate configuration using zodbconvert 
> first (https://relstorage.readthedocs.io/en/latest/zodbconvert.html). 
>
> We have an open issue about improving the documentation for this at 
> https://github.com/zodb/relstorage/issues/112 
>
> Jason 
>
> > On Nov 13, 2019, at 06:02, Thierry Florac <[email protected] 
> <javascript:>> wrote: 
> > 
> > Hi, 
> > 
> > Transaction API (ITransaction interface) allows to store user and 
> description (at least the matching request URL) into a given transaction 
> properties. 
> > These properties are then visible using, for example, ZODBBrowser. 
> > But I'm actually using RelStorage (2.1, actually testing new 3.0, with 
> history-free storage) and can't see these attributes anymore! 
> > Is there any way to get them back? 
> > I'm actually using Pyramid 1.9.4... 
> > 
> > Best regards, 
> > Thierry 
>
>

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