[postgis-users] LinestringZ not valid

[ps.tiara]

Hello,

I've tried to make a linestring with z value as below

select st_isvalid(a.p), st_isvalid(b.q)
from (select st_geomfromtext ('LINESTRING Z(0 0 0, 1 0 0)') as p) as a,
(select st_geomfromtext('LINESTRING Z(0 0 0, 0 0 1)') as q) as b

the result shows that linestring from table b is not valid,,it's caused too
few points..
is it impossible to make linestring (0 0 0, 0 0 1) ? how to make it valid?

thanks..

--t



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