Pavel Stehule <pavel.stehule@gmail.com> writes:
> now missing variables is replaced by variable's name. We can implement
> some pset option - some like define what do with missing variable
> \pset missing_variable (use_name | use_null | error )
No, it isn't "replaced by variable's name". What actually happens is we
don't attempt a replacement unless the string after the colon matches an
existing variable. Tampering with that seems dangerous and foolish.
regards, tom lane