On Mar 20, 2007, at 11:15 PM, 张骏 wrote:
> >> postgres.py: > Added SAVEPOINT support. > without SAVEPOINT support, the next code cannot run: > ::python > > rs = con.execute( "select * from sometable1" ) > for row in rs: > a = row.a > try: > con.execute( "insert into sometable2( a ) values( %s )" > , ( a ) ) > except: > pass > > with SAVEPOINT support: > ::python > rs = con.execute( "select * from sometable1" ) > for row in rs: > a = row.a > try: > con.execute( "insert into sometable2( a ) values( %s )" > , ( a ) ) > except: > if con.engine.name == 'postgres': > con.execute( 'rollback to sp' ) so, youd just have people using postgres automatically and without any control issue a "SAVEPOINT SP" after every single statement execution ? what about the performance overhead ? what if someone wants to issue SAVEPOINT at some other step, or not at all ? --~--~---------~--~----~------------~-------~--~----~ 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 this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
