title: What is ST in PostGIS?
body: <p>Almost all the functions in PostGIS start with ST. e.g. ST_Distance_Sphere, ST_GeomFromText, ST_Intersection, etc.</p>
  
  <p>What does ST mean?</p>
  
  <p><a href="http://www.postgis.org/documentation/manual-svn/PostGIS_Special_Functions_Index.html" rel="noreferrer">http://www.postgis.org/documentation/manual-svn/PostGIS_Special_Functions_Index.html</a></p>