[postgis-users] relationship functions not working well

[Nicolas Ribot]

> This relation has quite a complex expression in terms of the IM pattern
> languge.  It is:
>
> [T********]  or [*T*******] or [***T*****] or [****T****]
> and not ( [FT*******] or [F**T*****] or [F***T****] )
>
> This is equivalent to:
>
> not ([FF*FF****] or [FT*******] or [F**T*****] or [F***T****] )
>

Well, even if I would have read your email in great detail, I couldn't
guess such a pattern... gosh !

Nico