Syntax
------ 
OVERLAPS(g1,g2)
 
Description
----------- 
Returns 1 or 0 to indicate whether g1 spatially overlaps g2.
The term spatially overlaps is used if two geometries
intersect and their
intersection results in a geometry of the same dimension but
not equal to
either of the given geometries.
 
OVERLAPS() is based on the original MySQL implementation and
uses object bounding rectangles, while ST_OVERLAPS() uses
object shapes.
 

 
 
 
 
 
 
 

URL: https://mariadb.com/kb/en/overlaps/