Hi, David, A good point.
Are there any alternatives? For instance, buffering all with a very small amount, so as to ensure all are polygons? Is that feasible? Can we cast a point into a polygon? Alternatively, can we store results in a list or an array of mixed points, so that these can be used. Regards, Shao On Mon, 27 Apr 2020 at 12:16, David McKelvie <[email protected]> wrote: > > One possibility is that for one of a_table there is only one of the > matching > b's. The st_concavehull of a point is a point, it doesnt always return a > polygon. > > David > > _______________________________________________ > postgis-users mailing list > [email protected] > https://lists.osgeo.org/mailman/listinfo/postgis-users
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