Re: [HACKERS] LONG

> > At least this is my impression from some descriptions, and it also
> > seems reasonable thing to do in general as we dont want to read in
> > 500K tuples (and then sort them) just to join on int fields and filter
> > out on boolean and count(n) < 3.
> 
>     Even  if  this  is  a  side  effect  I  haven't  seen  at the
>     beginning, it would be one of the  best  side  effect's  I've
>     ever  seen.  A  really  tempting  one  that's worth to try it
>     anyway.
> 

Or make struct varlena vl_len a 15-bit field, and make islong a 1-bit
field.  I don't remember if using & manually or bit fields is faster.

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