ST_HasArc
Name
ST_HasArc — Returns true if a geometry or geometry collection contains a circular string
Synopsis
    
     boolean
     
      ST_HasArc
     
     (
    
    geometry
    
     geomA
    
    
     )
    
    ;
   
Description
Returns true if a geometry or geometry collection contains a circular string
Availability: 1.2.3?
   
    
   
   This function supports 3d and will not drop the z-index.
  
   
    
   
   This method supports Circular Strings and Curves