Hi everybody,
I am trying to merge two linestring like in the following example:
select st_astext(st_linemerge(st_collect(ST_GeomFromEWKT('LINESTRING(5 5 5
5, 10 10 10 10)'),ST_GeomFromEWKT('LINESTRING(10 10 10 10 , 15 15 15
15)'))));
but the output is
"LINESTRING Z (5 5 5,10 10 10,15 15 15)"
that is, the 4th dimension is lost.
Can anyone please explain me the reason and how to overcome this problem?
Thanks and best regards
Paolo
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