Re: [postgis-users] SQL syntax question

2015-03-09 Thread Manuel Kohout
Dear Remi, Many thanks for your reply - makes it much more clear. I actually managed to solve the issue by a table join following the sql query. Thanks again /Manuel On Mon, Mar 9, 2015 at 11:03 PM, Rémi Cura remi.c...@gmail.com wrote: Hey, this is more a postgres/SQL question. Anyway

Re: [postgis-users] SQL syntax question

2015-03-09 Thread Rémi Cura
Hey, this is more a postgres/SQL question. Anyway SELECT a.gid, b.gid, st_shortestline(a.geom,b.geom), ST_Distance(a.geom,b.geom) AS distance FROM test.nfanwood AS a, test.nfanwood AS b WHERE ST_DWithin(a.geom,b.geom,2000) = TRUE The syntax is : SELECT choose what you see as final result

[postgis-users] SQL syntax question

2015-03-08 Thread Manuel Kohout
Hi, I have found following SQL query for measuring distances between polygon edges: select a.gid from_gid, b.gid to_gid, st_shortestline(a.geom,b.geom), st_distance(a.geom,b.geom) as distance from test.nfanwood as a, (select * from test.nfanwood) as b where st_dwithin(a.geom,b.geom,2000)