I have some interest in working out ways to integrate stored procedures with 
SQLAlchemy though at the moment the points of integration are very rudimental.  
  You can invoke a stored procedure, get results, and also create a 
"selectable" that would define the columns that come back from one (that's at 
http://www.sqlalchemy.org/docs/core/tutorial.html#functions).   Postgresql 
functions are also handy for various ad-hoc queries and I've used them for 
things like computing statistical values as columns.

As far as a full blown persistence layer with SPs, there's no established 
patterns for any of that so you'd be working that out yourself - I might skip 
usage of ORM mapped classes and build out something based on SQL expressions.


On Sep 1, 2011, at 8:27 AM, Krishnakant Mane wrote:

> hello all,
> I am thinking of programming a lot of stored procedures for my postgresql 
> based application.
> I would like to know if using the expression API is a way that can give me 
> the power of sqlalchemy's eas and comfort, at the same time make use of the 
> performance bennifits I will get from postgresql's stored procedure?  In 
> short I would like to know if the approach is worthwile and how?
> Happy hacking.
> Krishnakant.
> 
> 
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