Re: [sqlalchemy] Why does SA (only 0.6.x) read data from n:m relationships when updating the parent table?

2010-07-07 Thread Michael Bayer
I so desperately wished you had reported this yesterday before I released. It's an extra load that forgot to get factored out. I may very well release 0.6.3 today as I consider this a very severe issue. On Jul 7, 2010, at 5:16 AM, Ralph Heinkel wrote: > Hi, > > is SA < 0.6 this problem did

[sqlalchemy] Why does SA (only 0.6.x) read data from n:m relationships when updating the parent table?

2010-07-07 Thread Ralph Heinkel
Hi, is SA < 0.6 this problem did not occur. The sample code to demonstrate the problem is taken from http://www.sqlalchemy.org/docs/mappers.html#many-to-many and repeated here for completeness. First let's setup a sample db (all done in sqlite in my case): class Parent(object): def __init__(