Thread

Re: [HACKERS] rollback varchar change

Vadim B. Mikheev <vadim@sable.krasnoyarsk.su> — 1998-01-08T05:54:15Z

Bruce Momjian wrote:
> 
> >
> > Bruce Momjian wrote:
> > >
> > > I have found that the varchar() change I made requires a new
> > > pg_attribute field, so I am rolling back the change until I get a fully
> >   ^^^^^^^^^^^^^^^^^^
> >
> > Please try some other way. As I remember, you said about breaking
> > vl_len into 2 parts - very nice for me, but I'd recommend to leave
> > varlena as is and add new structure - for compatibility and to allow
> > text (etc) be longer 2^16 someday (multi-representation feature).
> > Just like attlen -1 is used in many parts of code to flag varlena,
> > you could use -2 to flag new structure.
> 
> OK, I have now figured out that my original idea was sound.  The only

Having new column in pg_attribute I'm not sure that we need in new
structure...

Vadim