On Tue, Mar 23, 2010 at 12:57:19AM -0300, Juan Manuel Santos wrote:
> Are there any ideas on why would SQLO
> be a bit slower
When you declare a table
class MyTable(SQLObject):
...columns...
and do an INSERT by calling MyTable(columns) SQLObject immediately does a
SELECT to get back autogenerated fields (timestamps and the like) This is
slow. It's ok to create rows like this occasionally but it is certainly bad
for mass-insertion.
For mass-insertion use SQLBuilder. Alas, it's underdocumented. Go by
example:
record = {'column1': value1, 'column2': value2, ...}
connection.query(connection.sqlrepr(
sqlbuilder.Insert(MyTable.sqlmeta.table, values=record)))
These are simple straightforward INSERTs without any additional
high-level burden - no SELECT, no caching, nothing. Fire and forget.
It is not as high-level as calling MyTable() but it is still high
enough - sqlrepr() does value conversion and quoting, e.g.
Oleg.
--
Oleg Broytman http://phd.pp.ru/ p...@phd.pp.ru
Programmers don't die, they just GOSUB without RETURN.
------------------------------------------------------------------------------
Download Intel® Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
_______________________________________________
sqlobject-discuss mailing list
sqlobject-discuss@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/sqlobject-discuss
