> What we've basically got here is a complaint that the default
> textual-representation-based method for transmitting PL function
> parameters and results is awkward and inefficient for bytea.
> So the first question is whether this is really localized to only
> bytea, and if not which other types have got similar issues.
> (Even if you make the case that no other scalar types need help,
> what of bytea[] and composite types containing bytea or bytea[]?)
>
It can be solution for known isues. Current textual representation is
more ugly hack than everythink else.
Regards
Pavel Stehule