Anil Menon wrote:
> I would like to ask from your experience which would be the best "generic" method for checking if row
> sets of a certain condition exists in a PLPGSQL function.
>
> I know of 4 methods so far (please feel free to add if I missed out any others)
[...]
Are you aware that all of these methods have a race condition unless
you use isolation level READ STABILITY or better?
It may be that rows are added or removed between the check and the
corresponding action.
Yours,
Laurenz Albe
