On 12/21/12 4:49 PM, I wrote:
> On 12/21/12 4:39 PM, Tom Lane wrote:
>> What is the use-case for this?
>
> Currently, the way to do this would be something like:
I realize I didn't really answer the question.
The use case is when you're UPDATEing or DELETEing a row and you want to
quickly assert that there should be exactly one row. For example, if
you've previously locked a row with SELECT .. FOR UPDATE, and now you
want to UPDATE or DELETE it, it better be there (or you have a bug
somewhere).
Regards,
Marko Tiikkaja
