[postgis-users] Finding if a polygons is fully covered by others [Solved]

[Nicolas Gillet - MARKET-IP]

Hello

Thank you both for those inputs.

I have finally decided to use a difference because in a second step the
non-covered geometry interests me too.

About my area solution, yes it worked because I am sure that my table
contains only BBox and those are touching but never overlapping others.

Thank you again.

Nicolas.