Robert Haas <robertmhaas@gmail.com> writes:
> Is "forcibly detoast everything" a complete no-go? I realize there
> are performance concerns with that approach, but I'm not sure how
> realistic a worry it actually is.
It's certainly possible to think of scenarios under which it'd be painful,
eg, you fetch all columns into a record but you never actually use the
toasted one(s). OTOH, I can think of cases where forced detoasting might
save cycles too, if it prevents multiple detoastings on later accesses.
Probably what we ought to do is put together a trial patch and try to
do some benchmarking. I agree that this is the simplest route to a
fix if we can stand the overhead.
regards, tom lane
