ST_MinimumBoundingRadius
Name
ST_MinimumBoundingRadius — Returns the center point and radius of the smallest circle that contains a geometry.
Synopsis
    
     (geometry, double precision)
     
      ST_MinimumBoundingRadius
     
     (
    
    geometry
    
     geom
    
    
     )
    
    ;
   
Description
Returns a record containing the center point and radius of the smallest circle that contains a geometry.
Use in conjunction with ST_Collect to get the minimum bounding circle of a set of geometries.
Availability - 2.3.0