On Oct 5, 2010, at 4:48 AM, Chris Withers wrote: > On 04/10/2010 13:16, Mark Erbaugh wrote: >> If I were doing this in SQL, I would to the first command as >> >> SELECT count(*) >> FROM period >> WHERE period.cycle = ? > > Why would you do this first?
I wasn't sure why SA was issuing a "select realperiod from period where period.cycle = ?" before deleting the records. I incorrectly assumed that it was trying to get the count of records to be deleted. Michael Bayer pointed out that cursor.rowcount was used to get that value and that the code in question was used by the session to keep the local (in memory) copy of the data up to date. Mark -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalch...@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en.
