Hi All,
I was getting My Sql has gone away, then i set
sqlalchemy.pool_recylce=3600 in prod.cfg.
it was woking fine but but still some time i get the same error i.e
MySql has gone away.
Can any one tell me what should i do?
Thanks anD Regards
Reetesh Nigam
wow, thanks for the replies. I really appreciate the quick responses.
I've been
using sqlalchemy for a few years now, and I have been very impressed
by the
turnaround on questions and bugs when dealing with this group. Again,
thank you.
I have just a few more (inline) comments below
On Apr 15,
On Apr 16, 2009, at 3:25 AM, dykang wrote:
Are objects not marked as dirty on changes? Do you check each
attribute
of each object in the session on every flush? If this process has poor
performance, doesn't autoflush suffer the same consequences?
I believe I probably overstated
Hi all,
I've playing around with SQLAlchemy for a few months, being very happy
with the results.
As my adventures are getting gradually more complex I feel I've
finally run into a problem where I am just stuck, so any help from the
SQLAlchemy community would be greatly appreciated.
In essence I
that error is just a table already exists. pass checkfirst=True to
your table.create() call.
On Apr 16, 2009, at 6:21 AM, JanW wrote:
Hi all,
I've playing around with SQLAlchemy for a few months, being very happy
with the results.
As my adventures are getting gradually more complex I
Oops, yes of course.
Sorry, I copied the error message from the wrong terminal.
The relevant error message would be this one:
Traceback (most recent call last):
File demo.py, line 51, in module
result = Person.query().all()
File /Library/Frameworks/Python.framework/Versions/2.5/lib/
if the issue is, youre doing a JOIN across two tables that are in
different databases, that's not going to work. you cant issue a JOIN
across two different databases unless both of those tables are
accessible using schemas or remote database links within the same
process.
On Apr 16,
OK, thanks, so does that mean that mapping one class against multiple
tables in different databases is something very exotic and probably
bad practice?
Or is there some elegant way to achieve this?
Thanks,
Jan.
On Apr 16, 4:42 pm, Michael Bayer mike...@zzzcomputing.com wrote:
if the issue is,
On Apr 16, 2009, at 10:50 AM, JanW wrote:
OK, thanks, so does that mean that mapping one class against multiple
tables in different databases is something very exotic and probably
bad practice?
its an impossible practice unless you're using DBLINK...
Or is there some elegant way to
Hello,
I've got many to many relation: Reservation to Host. In Reservation I've
got collection (apparently an instance of InstrumentedList) of hosts.
How can I delete element from that collection? That is, I do not need to
delete Host per se, just delete reference to it in Reservation.hosts.
Hello
Even I am getting the same error. I thought pool_recycle was the
option to look into after doing research on Google.
For testing, I have a MySQL server with wait_timeout set to 10 seconds.
http://paste.pocoo.org/show/112820/
On Wed, Apr 15, 2009 at 11:36 PM, reetesh nigam
The following example is very contrived, but it's a very simplified
version of what I am actually trying to do.
Basically I'm trying to join with a derived table, that itself is a
self join.
Can someone help me figure out what I am doing wrong with this
example?
Thanks
#create meta
#create
On Apr 16, 2009, at 2:31 PM, dykang wrote:
inside = table.alias('inside')
outside = inside.join(table, table.c.foo 2)
s = outside.select(use_labels=True).alias('outside')
j = table2.join(s, table2.c.bar == outside.c.inside_foo)
s = j.select(use_labels=True)
rows =
So above, you're joining table2 to s. the ON clause must be in
terms of table2 and s, not outside, which is meaningless in that
context.
You are correct, that was a mistake in my example, but does not change
my mapping error.
The error was not that the query it was creating was
the error youre showing me, which is sqlalchemy.exc.OperationalError:
(OperationalError) (1054, Unknown column 'inside.foo' in 'on
clause') , has nothing to do with mapping. the SQL is not being
understood by the database. from_statement() results in the SQL you
pass being executed
oh, haha, sorry. i've been staring at this too long.
the real error (the one that I do get when I fix the example) is
sqlalchemy.exc.NoSuchColumnError: Could not locate column in row for
column 'inside.id'
they looked very similar, and i didn't look close enough. sorry
On Apr 16, 12:27 pm,
the sophisticated column correlation you're looking for will only work
if you use query.select_from(s), in which case there's no point in
creating the final subquery, just call select_from(j) to prevent an
unnecessary layer of nesting. It also seems like your ultimate query
is better
Hi,
I have a structure as this:
fossati
setup (module with attribute USER)
models/cliente(User)
calendar (Entry)
apps/job
in calendar.py:
from cliente import User
class Entry(Base):
...
user = relation(User,
thanks again for your help. I was curious though, I don't really
understand what
select_from is doing, and why it is able to map this data. I couldn't
really find
good explanations in the documentation about this. is there a good
place for me
to look to understand what this is doing? My
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