I have noticed that there seems to be a portion of the ESRI SQL implementation that is undocumented. The geometry related functions such as ST_Area, etc are well documented in the help. What is not documented are the various functions for the setup, administration and maintenance of the data. One such function is the AddGeometryColumn function as described in the 10.2 help here:ArcGIS Help (10.2, 10.2.1, and 10.2.2)
There are other calls such as CreateSpatialIndex or DropGeometryMetadata that are shown in examples but I can not find the function documention. Much less a list of what other functions are available in the ST_Geometry library.
Does anyone know where I might find the full documentation of the ST_Geometry library?