[postgis-users] geometry type issue

Shaozhong SHI shishaozhong at gmail.com
Mon Apr 27 04:27:06 PDT 2020

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.



On Mon, 27 Apr 2020 at 12:16, David McKelvie <dmck at interactive.co.uk> 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
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