Re: @ versus ~, redux

Tom Lane wrote:
> The existing geometric containment tests seem to be nonstrict, so if we
> wanted to leave room to add strict ones later, it might be best to
> settle on
> 
>     x @>= y        x contains or equals y
>     x <=@ y        x is contained in or equals y
> 
> reserving @> and <@ for future strict comparison operators.

Since the choice of @> and <@ comes from current ltree operators I'd 
like to point out that they are non-strict for ltree, and this could add 
a little bit of inconsistence.


Best regards
--
Matteo Beccati
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