[postgis-devel] Validity flag

Rémi Cura remi.cura at gmail.com
Mon Feb 29 03:40:55 PST 2016

would it also be possible to have function to set the flag.
Geometry may come from a trusted workflow outside of postgis.


2016-02-29 12:34 GMT+01:00 Sandro Santilli <strk at keybit.net>:

> On Mon, Feb 29, 2016 at 11:49:34AM +0100, Sandro Santilli wrote:
> > I like the approach of the validity flag, as long as we have
> > space for it. The ST_MakeValid could probably also set it,
> > for example.
> I've been also thinking that a single bit would not be enough
> to store the validity as the expensive operation we're trying
> to avoid is _checking_ for validity, so we want to encode
> whether or not the geometry was _checked_ in addition to
> whether it was found _valid_ or _invalid_, so we'd need
> 2 bits.
> --strk;
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