1. 2018-04-11 Re: [postgis-users] ST_Union results in empty polygon postgis-u Jonathan McCormack 2. 2018-04-05 Re: [postgis-users] ST_Union results in empty polygon postgis-u Arnaud L. 3. 2018-04-05 Re: [postgis-users] ST_Union results in empty polygon postgis-u Birgit Laggner 4. 2018-03-26 [postgis-users] ST_Union results in empty polygon postgis-u Jonathan McCormack