Am I missing something? Are we talking about doing some kind of transaction management at the application level? If not then it's worth noting that in MySQL you cannot begin a transaction twice without commiting or rolling back. i.e. nested transactions are not supported.
On Tue, May 18, 2010 at 1:05 AM, Piet Delport <pjdelp...@gmail.com> wrote: > 2010/5/17 Ian Lewis <ianmle...@gmail.com>: >> >> I suppose that it's worth mentioning that any support for nested >> transactions will not be portable to different databases (particularly >> MySQL) and probably would need to be documented accordingly. > > How do you mean? > > Django-level transaction block nesting is portable to any database that > supports transactions: The top-level transaction subsumes nested > transactional blocks. > > If you are referring to SQL savepoints, supporting them is entirely > optional: nested transaction blocks do not depend on it in any way. > Savepoints are more like an optional performance optimization than > anything else, and just give applications the option of doing > finer-grained failure recovery in certain cases without changing the > meaning of transactional blocks. (The proposal above only mentions > savepoints for completeness, and because support for them would be > natural to integrate.) > > -- > You received this message because you are subscribed to the Google Groups > "Django developers" group. > To post to this group, send email to django-develop...@googlegroups.com. > To unsubscribe from this group, send email to > django-developers+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/django-developers?hl=en. > > -- ======================================= 株式会社ビープラウド イアン・ルイス 〒150-0021 東京都渋谷区恵比寿西2-3-2 NSビル6階 email: ianmle...@beproud.jp TEL:03-6416-9836 FAX:03-6416-9837 http://www.beproud.jp/ ======================================= -- You received this message because you are subscribed to the Google Groups "Django developers" group. To post to this group, send email to django-develop...@googlegroups.com. To unsubscribe from this group, send email to django-developers+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-developers?hl=en.
