Re: [SQL] line datatype

Thomas Lockhart wrote:
> ...
> > > We do need a solution for exact dump/reload of floating-point data,
> > > but I don't see why the lack of it should be reason to disable access
> > > to the LINE type.
> > I don't understand why dumping the two point values isn't sufficient.
>
> Which two point values? LINE is handled as an equation, not as points,
> unlike the LSEG type which has two points.

Well, the \dT documentation used to show line as two points, so I
assumed that was how it was specified.

> One possibility is to have the external representation *be* the same as
> LSEG, then convert internally. Then we need to decide how to scale those
> points; maybe always using a unit vector is the right thing to do...

No one likes entering an equation. Two points seems the simplest.

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026