[postgis-users] Z coordinate value changes with st_transform

[Jose Carlos Martinez]

Hi, dont know if this is the expected behavior, maybe its because I 
built postgis with proj 4.8 or because something has changed in 
spatial_ref_sys. Dont know at what time it happened (I missed it).

Before:
pg20=# select st_astext(st_transform(st_geomfromtext('POINT (700000 
4500000 100)', 23030), 4326));
                           st_astext
--------------------------------------------------------------
  POINT Z (-0.63662073736203 40.6248036513963 100)


Now:
pg20=# select st_astext(st_transform(st_geomfromtext('POINT (700000 
4500000 100)', 23030), 4326));
                           st_astext
--------------------------------------------------------------
  POINT Z (-0.63662073736203 40.6248036513963 168.35361468256)

Using ST_AsKml Its changing the Z coordinate too.

Someone can confirm when this change happened in PostGIS?

Regards,
Jose