Re: [os-libsynthesis] super data store: trying to read to check for existance

2011-10-25 Thread Lukas Zeller
Hello Patrick, On Oct 24, 2011, at 16:55 , Patrick Ohly wrote: Why is it necessary to read before trying to delete? If the item exists, then reading it is a fairly expensive test. Unfortunately, with some some backends, this is the only test that reliably works. For example, some SQL

Re: [os-libsynthesis] super data store: trying to read to check for existance

2011-10-25 Thread Patrick Ohly
On Tue, 2011-10-25 at 09:24 +0200, Lukas Zeller wrote: Hello Patrick, On Oct 24, 2011, at 16:55 , Patrick Ohly wrote: Why is it necessary to read before trying to delete? If the item exists, then reading it is a fairly expensive test. Unfortunately, with some some backends, this is