[postgis-users] geometry type issue
shishaozhong at gmail.com
Mon Apr 27 03:29:23 PDT 2020
I added a new column.
alter table a_table add column geom geometry(Polygon, 27700);
update a_table set geom = (select ST_ConcaveHull(ST_Collect(geom), 0.99)
from b_table where name = _name) where name = _name;
It kept throwing up an error message saying: "geometry type point does not
I thought that a concavehyll is a polygon. That is why I created a polygon
column for it.
Can anyone help?
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