[postgis-users] Polygon to line

[Ricardo Vilella]

Hi all, is the first time I use the list. I have a polygon that represent a
country, if i want extract only the sides that touch with other polygon. How
i have to do? The result should be a MultiLineString or a LineString
representing the limits of the country but without the coast line if it has
one. I tried with ST_Touches but i can't get it work.
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