Chris, 23.07.2009 09:06:
psql -d dbname
..
# select now();
now
-------------------------------
2009-07-23 17:04:21.406424+10
(1 row)
Time: 2.434 ms
(csm...@[local]:5432) 17:04:21 [test]
# savepoint xyz;
ERROR: SAVEPOINT can only be used in transaction blocks
(csm...@[local]:5432) 17:04:25 [test]
You haven't explicitly started a transaction, therefore savepoints won't
work.
Django (it seems) just issues queries with no knowledge of (and no way
to support) them.
The above situation only arises if you run in autocommit mode which is the default for psql (which I have *never* understood).
If you do a "\set AUTOCOMMIT off", then you can set a savepoint without using
BEGIN. I have this in my psqlrc.conf and your example looks like this on my computer:
c:\Temp>psql training thomas
psql (8.4.0)
Type "help" for help.
training=> select now();
now
----------------------------
2009-07-23 09:30:55.791+02
(1 row)
training=> savepoint abc;
SAVEPOINT
training=> release abc;
RELEASE
training=>
I don't believe any serious ORM would run in autocommit mode, so that shouldn't be a problem.
Thomas
--
Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-sql
