Is there a difference in PostgreSQL performance between these two
different strategies:
if(!exec("update foo set bar='blahblah' where name = 'xx'"))
exec("insert into foo(name, bar) values('xx','blahblah'");
or
exec("delete from foo where name = 'xx'");
exec("insert into foo(name, bar) values('xx','blahblah'");
In my session handler code I can do either, but am curious if it makes any
difference. Yes, "name" is unique.
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TIP 6: explain analyze is your friend
