, Nov 12, 2018 at 7:56 AM andrew cooke wrote:
> > >
> > >
> > > I have some code that uses high-level ORM and it works fine, except that
> > > one particular section is too slow. So I was trying to replace that
> > > section with a lower level query
I have some code that uses high-level ORM and it works fine, except that
one particular section is too slow. So I was trying to replace that
section with a lower level query. But I can't work out how to persuade the
Expression Language to stop auto-correlation.
The query I am trying to
Hi,
Could someone please explain what the following error means? I assume I am
expecting too much magic from SQLAlchemy, but I can't see why it doesn't
just work.
I am trying to define a directed graph of related (music) artists. So I
have an Artist class (nodes) and a Link class (directed
Oh, staring at that some more - I guess the problem is that there is
nothing that says that if alice links to bob then bob links from alice. I
should just defined one arc. Sorry - I will fix my code. Andrew
On Thursday, 7 February 2013 07:56:18 UTC-3, andrew cooke wrote:
Hi,
Could
I'm an idiot. Will delete post. I need to be more explicit about the
intermediate table.
On Thursday, 7 February 2013 07:56:18 UTC-3, andrew cooke wrote:
Hi,
Could someone please explain what the following error means? I assume I
am expecting too much magic from SQLAlchemy, but I can't
Hi,
This trace is from some code that is loading a lot of objects (and
which usually does so with no problems). I don't have more details
yet (it will be quite some work to find out exactly what data is
causing the error), but it does use joined table inheritance. Does
anyone have any idea
As far as I know, I'm doing nothing that complex. I am creating a
pile of mapped objects in Python and then dumping them to the
database. The most likely cause is that a field is None, or of the
incorrect type in some way, I would have guessed.
Andrew
On May 7, 9:56 am, Michael Bayer
(I thought this might be a FAQ, but I can't find it, and searching
isn't turning up anything either...).
Am I right n thinking it is not possible to do CREATE TABLE AS
in SQLAlchemy? In other words, creating a table from a select
statement?
I'm using 0.4 and Oracle. If it is possible I
Hi,
Not sure if I'm misunderstanding what's happening, whether I have a
bug, or whether this is normal behaviour, but as far as I can tell
mapped objects that are returned from a query do not have their
constructor called. Is that correct?
In a bit more detail - I have a mapping defined to
Hi,
(Apologies for asking so many questions here - I really appreciate the
help).
I have been using joined table inheritance without any problems for a
while with a very simple hierarchy: a base class/table called
Measurement and various subclasses that contain a typed value column
I'm sorry - ignore that, I am talking crap.
Adding with_polymorphic('*') *does* fix this - I was mislead because I
had the same problem in several places, so when I fixed one section of
the code another failed with a very similar stack trace.
Cheers,
Andrew
1 - changing isnull to foo worked. thanks!
2 - i tried adding text('nulls last') in the order_by(...), but got an
error from sqlite. i don't suppose there's something clever in
sqlalchemy that does this in a portable way is there?
3 - what do you use as a reference for SQL? do you have the
the case solution works too, which is what i'll go with. thanks.
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
sqlalchemy group.
To post to this group, send email to sqlalchemy@googlegroups.com
To unsubscribe from
On May 21, 2:04 am, [EMAIL PROTECTED] wrote:
what u want to accomplish?
Well, it's the equivalent of the SQL IN.
So i want to retrieve all Measurements which are associated with with
a Time Series in the given list. The SQL equivalent would be
something like:
SELECT * from Measurement as M
On May 21, 9:37 am, Michael Bayer [EMAIL PROTECTED] wrote:
in_ is supported for column-based attributes. If you are getting
NotImplemented, that's beacuse time_series is referencing either a
collection or a many-to-one object reference. so SQL IN wouldn't
work here.For the many-to-one
Hi,
Just wanted to check: I am seeing a NotImplementedError (v 0.4.6 on
Linux w Python 2.5) when I try to query some objects with the filter
in. Does that mean that the feature is not implemented, or is it
more likely an error in my code (eg somehow I'm calling a base class;
16 matches
Mail list logo
