Re: strange update problem with 7.2.1

Oleg Bartunov <oleg@sai.msu.su> writes:
> test=# update tst set i = i+10   where a && '{3,4}';
> UPDATE 3267
> test=# set enable_indexscan=off;
> SET VARIABLE
> test=# update tst set i = i+10   where a && '{3,4}';
> UPDATE 4060

I get the same in current sources (in fact the number of rows updated
varies from try to try).  Are you sure it's not a problem with the
gist index mechanism?
        regards, tom lane