Mike McGavin wrote:
> Hello everyone.
>
> Can anyone suggest if there's a way to force a plpgsql stored procedure
> to be recompiled every time that it's called, based on the values of the
> parameters that it's given? I assumed it would be possible, but
> unfortunately haven't been able to find any documentation on how to
> force a recompile at all, let alone automatically.
>
> I've encountered a situation where the standard precompiled generic
> query plan isn't working at all well with the unknown variables that the
> stored procedure receives. It seems to do nicely if I replace them with
> constants, though. (Compilation time isn't really an issue in this
> situation, but I'd like to leave everything in the stored procedure for
> other reasons.)
>
> I could probably re-write the procedure to concatenate a string
> containing the unknowns as constants and then EXECUTE it. Doing it that
> way seems a bit ugly, though, and it'd make maintenance a bigger problem.
>
Right now unfortunately this is the only one solution.
See the post on performance (8/28/2004) with the title:
ill-planned queries inside a stored procedure"
Regards
Gaetano Mendola