Hi,
I'm getting some surprisingly poor performance from SQLAlchemy
in .get() operations. They're typically taking about 100-200ms, though
varying quite a lot. Just doing engine.execute() on the echo()ed SQL
takes about 10ms. The query is not small, with a few LEFT OUTER JOINS
to eagerly loaded
Hi all, i want to retrieve columns from table used as secondary in a n:m
join.
For Example, in this case how to retrieda data_fine, data_inizio from
secondary tables ?
my mapper respect correclty this property:
'associated_unita_aziendale' : relation( UnitaAziendale,
On May 13, 2007, at 11:52 PM, Eric Ongerth wrote:
Incidentally, the same problem is happening when using SPE as my
editor. Ordinarily it is able to open sources of imported modules so
the user can view the statement where an exception occurred, but in
the case of SQLAlchemy modules, it's
On May 14, 2007, at 1:28 AM, Sanjay wrote:
Further findings and queries on SelectResults:
1. Is SelectResults still needed in certain situations:
a. Observed that SelectResults was having a count() method. If we
don't use SelectResults, either we have to query the database for
getting
On May 14, 2007, at 4:12 AM, Graham Stratton wrote:
Hi,
I'm getting some surprisingly poor performance from SQLAlchemy
in .get() operations. They're typically taking about 100-200ms, though
varying quite a lot. Just doing engine.execute() on the echo()ed SQL
takes about 10ms. The query
do you mean, the compilation of the Select object into a string ?
extremely unlikely. the main speed issue with get() is that of
fetching rows from DBAPI and processing into object results, which
goes up by a huge margin if you have a lot of eagerly loaded
instances attached to the get.
Cool. I should have realized a thorough reread of the setuptools and
easy_install docs would solve this.
Anyone experiencing the same problem should check the following link:
http://peak.telecommunity.com/DevCenter/EasyInstall#editing-and-viewing-source-packages
I reinstalled more carefully
On May 14, 2007, at 11:27 AM, Graham Stratton wrote:
I ran a few get()s with non-existent ids (which are therefore
returning no rows, confirmed by setting engine.echo to 'debug'). The
average query time was about 80ms, though it varied from 56ms to
110ms.
I also called engine.execute with
Hi there,
You can include a command in the dburi that is executed upon
connection start. I use it all the time like this:
mysql://user:[EMAIL
PROTECTED]:3306/dbname?init_command=set%20character%20set%20utf8
Arnar
On 5/14/07, Noam [EMAIL PROTECTED] wrote:
Hello,
I'm trying to use
