The following bug has been logged on the website:
Bug reference: 7911
Logged by: ST_Intersection and Equal to operator does not work con=
sistently
Email address: dgplinux@yahoo.com
PostgreSQL version: 9.2.0
Operating system: Windows XP ,Windows 7
Description: =
The point below has equal x,y values with 3 Lines.
ST_Intersection & '=3D' operator returns only 2 of them =
=
POINT(-115.170246909479 36.0755731954767) =
LINESTRING(-115.16886866056 36.0749632293696,-115.169344063777
36.0751335573678,-115.170006424357 36.0754963465793,-115.170246909479
36.0755731954767)
LINESTRING(-115.170246909479 36.0755731954767,-115.169804424035
36.0763443739938)
=
LINESTRING(-115.170246909479 36.0755731954767,-115.170474133874
36.07567333046,-115.170951106408 36.0759910051809,-115.170983532364
36.076342785791)