ST_PointM
Name
ST_PointM — Creates a Point with the given coordinate and SRID values.
Synopsis
    
     geometry
     
      ST_PointZ
     
     (
    
    float
    
     x
    
    , float
    
     y
    
    , float
    
     m
    
    , integer
    
     srid=unknown
    
    
     )
    
    ;
   
Description
Returns an Point with the given X, Y and M coordinate values, and optionally an SRID number.
Enhanced: 3.2.0 srid as an extra optional argument was added. Older installs require combining with ST_SetSRID to mark the srid on the geometry.