in my cases
and speeds up the system dramatically.
Once I understood that there wasn't really a memory leak, I just
optimized what was already there to use less memory.
-Allen
On Wed, Feb 25, 2009 at 6:59 PM, Peter Hansen pe...@engcorp.com wrote:
Allen Bierbaum wrote:
On Tue, Feb 24, 2009 at 4
On Tue, Feb 24, 2009 at 4:44 AM, Chris Miles miles.ch...@gmail.com wrote:
On Feb 22, 6:08 am, Allen Bierbaum abierb...@gmail.com wrote:
The python process. The number of objects seems to remain fairly
controlled. But the amount of resident memory used by the python
process does not decrease
Hello all:
We are running into a very strange memory leak issue. Here are the details:
- The co executes select statements directly on a table using SA
0.5.2, Postgres 8.3, Psycopg2, all running on Linux (Ubuntu 8.04)
- Querying a table with approximately 7 records
- When we query the
topped out even though all handles to the results
have been cleared in python.
I am sure that I must be doing something very wrong, but I can't
figure it out. Can anyone point out my error?
-Allen
On Sat, Feb 21, 2009 at 7:52 AM, Allen Bierbaum abierb...@gmail.com wrote:
Hello all:
We
generally stays large once it grows.
On Feb 21, 2009, at 11:16 AM, Allen Bierbaum wrote:
I spent some more time and came up with a completely standalone test
application. (attached) (requires SA 0.5.2 and some database backend).
I have tested this with postgres and with sqlite and both
Does anyone have any ideas on this?
Does declarative simply not support the deferred property?
-Allen
On Sat, Nov 8, 2008 at 11:32 AM, Allen Bierbaum [EMAIL PROTECTED] wrote:
We have been using the declarative successfully in our codebase for a
couple months now with 0.4.x, but we have just
Bierbaum
Sent: 14 November 2008 16:40
To: sqlalchemy
Subject: [sqlalchemy] Re: Using deferred with declarative
Does anyone have any ideas on this?
Does declarative simply not support the deferred property?
-Allen
On Sat, Nov 8, 2008 at 11:32 AM, Allen Bierbaum
[EMAIL PROTECTED] wrote
We have been using the declarative successfully in our codebase for a
couple months now with 0.4.x, but we have just run into a problem.
We have a table we we want to map using declarative but we want to
have one of the columns be deferred because it contains binary data.
Unfortunately we can't
On Fri, May 16, 2008 at 4:54 PM, jason kirtland [EMAIL PROTECTED] wrote:
[..]
Anyway, I think this is a bit non-intuitive. What I propose instead
is that SA could automatically set the 'keyword' attribute of the Note
object as part of the process of assigning it to the mapped collection
I have just started using column_mapped_collections.
(http://www.sqlalchemy.org/docs/04/mappers.html#advdatamapping_relation_collections_dictcollections
I must say, these are very powerful and extremely nice when reading
data. But I have run into one thing that seems confusing when it
comes to
I am trying to setup a many-to-many relationship for two tables where
I would like to allow more natural access to the data using a
dictionary interface. The exact usage is pretty complex to explain,
but I have come up with a simple example that demonstrates the same
concept. (there is a full
On Thu, May 15, 2008 at 11:37 AM, Michael Bayer
[EMAIL PROTECTED] wrote:
On May 15, 2008, at 11:23 AM, Allen Bierbaum wrote:
# WOULD LIKE - #
# Can this be done using
# - Custom join condition on input_output_type
# - column_mapped_collection
#
it can be done. Try working
the declarative layer and have it
regenerate all automatically created metadata and mappers?
-Allen
On Mon, Apr 28, 2008 at 5:07 PM, Michael Bayer [EMAIL PROTECTED] wrote:
On Apr 28, 2008, at 5:42 PM, Allen Bierbaum wrote:
So, if I understand this right, I could import a base module
On Mon, May 5, 2008 at 4:29 PM, Michael Bayer [EMAIL PROTECTED] wrote:
On May 5, 2008, at 5:04 PM, Allen Bierbaum wrote:
Is there some way to clear the declarative layer and have it
regenerate all automatically created metadata and mappers?
not as of yet but this could be done
and bind the metadata for the Base class to an
engine for use.
Correct? (I apologize if I used the terms incorrectly).
If this is true, then I think I see how I can solve my problem.
-Allen
On Sun, Apr 27, 2008 at 6:28 PM, Michael Bayer [EMAIL PROTECTED] wrote:
On Apr 27, 2008, at 8:25 AM, Allen
I am investigating the use of the declarative extension. It looks
very attractive, but I have a problem...
I have a large project that is using the standard methods of
configuring tables and mappers. More specifically, there is a single
method in my domain package that is called once the
I was just taking a look at the recipes on the SA wiki and stumbled
across this one:
http://www.sqlalchemy.org/trac/wiki/UsageRecipes/SchemaDisplay
It is a pretty nice little piece of code to automatically create
schema diagrams from a DB engine and UML diagrams for a set of
mappers. I am very
Thanks, that worked great.
Have their been any new capabilities added to this code?
-Allen
On Jan 17, 2008 12:21 PM, [EMAIL PROTECTED] wrote:
use sqlalchemy.orm.class_mapper(cls) instead of cls.mapper, and it should
work?
Allen Bierbaum wrote:
I was just taking a look at the recipes
On Dec 13, 2007 12:29 PM, Allen Bierbaum [EMAIL PROTECTED] wrote:
On Dec 13, 2007 10:47 AM, Michael Bayer [EMAIL PROTECTED] wrote:
On Dec 13, 2007, at 9:55 AM, Allen Bierbaum wrote:
In my current application I am running a rather expensive query in a
background thread, but then I need
In my current application I am running a rather expensive query in a
background thread, but then I need to use the results in the
foreground thread. The object I find has a great deal of lazy
evaluated properties that link it to several other mapped objects. As
it stands now, the application is
On Dec 13, 2007 10:47 AM, Michael Bayer [EMAIL PROTECTED] wrote:
On Dec 13, 2007, at 9:55 AM, Allen Bierbaum wrote:
In my current application I am running a rather expensive query in a
background thread, but then I need to use the results in the
foreground thread. The object I find
Thanks. This looks like it should work. I will give it a try.
-Allen
On Dec 9, 2007 10:39 PM, Michael Bayer [EMAIL PROTECTED] wrote:
On Dec 9, 2007, at 10:55 PM, Allen Bierbaum wrote:
I am using SA 0.3.11 and I would like to know if there is a way to get
a query object from
I am trying to figure out how to best use SA to create a GIS query.
In my application I am actually using ORM objects and mappers, but to
keep my question focused on clauses and python expressions, I am just
trying to test this out without the ORM first.
The SQL query I would like to generate is
I am using SA 0.3.11 and I would like to know if there is a way to get
a query object from a relation property. I have several one-to-many
relationships in my application. These are all setup and work very
well, but I find that I often want to perform further filtering of the
objects in the
I forgot to mention, I am using SA 0.3.10.
Thanks,
Allen
On Dec 7, 2007 7:49 AM, Allen Bierbaum [EMAIL PROTECTED] wrote:
I am trying to create two queries with some of my SA ORM objects that
will use the sum of a field found through a relationship. To be a bit
more concrete, here
I am trying to create two queries with some of my SA ORM objects that
will use the sum of a field found through a relationship. To be a bit
more concrete, here is a simple setup similar to mine.
# table object
users_table = Table('users', meta,
Column('user_id', Integer, primary_key=True),
Thanks for the feedback. I hadn't thought of doing it this way.
I did comb through the documentation a 2nd and 3rd time today though
and found the add_column() method for queries. It looks like that
may be another way to get what I want. I am thinking about even
creating a little builder
Is anyone currently keeping the migrate project up to date or are
there any other efforts to provide similar functionality?
We have a rather large project where we started using migrate with SA
because we wanted a robust way to track database modifications and
apply then to production databases.
this directly with SA, so if anyone
can tell me a way to let SA know exactly how I want the object's value
to appear in the generated SQL statement please let me know so I can
refine my code.
Thanks,
Allen
On 2/25/07, Allen Bierbaum [EMAIL PROTECTED] wrote:
[snip]
When I use this with my table
I have been pursuing this further on my own and one of the issues I
have run into is how to cleanly add a geometry column to a database.
The posting referenced in the first e-mail [2] talks about doing this
directly with psycopg2 cursor because the poster could not get it
working with SA. I gave
[snip]
When I use this with my table and datamapper code, it looks like
everything is working fine but the generated SQL insert statement
fails with a exception:
sqlalchemy.exceptions.SQLError: (ProgrammingError) parse error -
invalid geometry
'INSERT INTO gis_entity (id, name, pos)
Is it possible to examine the session and get a list of all mapped
instances that have been changed?
More details:
I would like to implement an observer pattern in my application. I
would like to let the code make changes to mapped objects as normal,
but immediately before (or after) a session
in the SA tutorial. This may help separate the SA plugin magic from
the fixture magic.
Anyway, see below for more detailed comments
On 2/6/07, Kumar McMillan [EMAIL PROTECTED] wrote:
On 2/3/07, Allen Bierbaum [EMAIL PROTECTED] wrote:
This works for creating the table structure
I am going to try to integrate this into my testing framework this
afternoon so I am sure I will have more questions after that. In the
meantime see below...
On 2/7/07, Kumar McMillan [EMAIL PROTECTED] wrote:
Thanks for taking a close look Allen. Here are some answers...
On 2/7/07, Allen
On 2/1/07, Evan Rosson [EMAIL PROTECTED] wrote:
I was considering the use of migrate (http://erosson.com/migrate/) for
a new project using SA and I just wondered if anyone else is using
it?
I'm using it, but then, I wrote it. It's worked well for me, though
I'm not sure how widely used
On 1/26/07, Michael Bayer [EMAIL PROTECTED] wrote:
On Jan 25, 7:28 pm, Allen [EMAIL PROTECTED] wrote:
The basic idea of a persistence layer (as I understand it) is that you
attempt to isolate applications from the database to the point that the
application and the data model can vary
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