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###############################################################################
# #
# This test is aimed to focus on a mixtur of operators and testing functions. #
# #
# Creation Date: 2014-02-25 #
# Author : Horst Hunger #
# #
###############################################################################
--source include/have_geometry.inc
############################################################################################
# Creating the spatial objects #
############################################################################################
--echo #Creating the spatial Geometry object
USE test;
CREATE TABLE gis_geometrycollection (fid INTEGER NOT NULL PRIMARY KEY, g GEOMETRY);
############################################################################################
# Inserting the values specific to the spatial objects #
############################################################################################
# Geometric elements constructing a star and some of its elememts as base
SET @star_elem_vertical= 'POLYGON((5 0,15 25,25 0,15 5,5 0))';
SET @star_elem_horizontal= 'POLYGON((25 0,0 15,30 15,22 10,25 0))';
SET @star_center= 'POINT(15 10)';
SET @star_top= 'POINT(15 25)';
SET @star_bottom_left= 'POINT(5 0)';
SET @star_bottom_right= 'POINT(25 0)';
SET @star_bottom_points= 'MULTIPOINT(5 0,25 0)';
SET @star_all_points= 'MULTIPOINT(5 0,25 0,15 10,15 25)';
SET @star_line_horizontal= 'LINESTRING(10 15,20 15)';
SET @star_line_vertical= 'LINESTRING(15 5,15 25)';
SET @star_top_to_center= 'LINESTRING(15 25,15 10)';
SET @star_lines_near_horizontal= 'MULTILINESTRING((25 0,0 15,15 30,0 5))';
SET @star_lines_near_vertical= 'MULTILINESTRING((0 5,15 25,0 25))';
SET @star= 'POLYGON((5 0,7 10,0 15,10 15,15 25,20 15,30 15,22 10,25 0,15 5,5 0))';
SET @star_elem_vertical_val= '((5 0,15 25,25 0,15 5,5 0))';
SET @star_elem_horizontal_val= '((25 0,0 15,30 15,22 10,25 0))';
SET @star_of_elems='MULTIPOLYGON(((5 0,15 25,25 0,15 5,5 0)),((25 0,0 15,30 15,22 10,25 0)))';
# Star identical to the base star
SET @star_elem_vertical_1= 'POLYGON((5 0,15 25,25 0,15 5,5 0))';
SET @star_elem_horizontal_1= 'POLYGON((25 0,0 15,30 15,22 10,25 0))';
SET @star_center_1= 'POINT(15 10)';
SET @star_top_1= 'POINT(15 25)';
SET @star_bottom_left_1= 'POINT(5 0)';
SET @star_bottom_right_1= 'POINT(25 0)';
SET @star_bottom_points_1= 'MULTIPOINT(5 0,25 0)';
SET @star_all_points_1= 'MULTIPOINT(5 0,25 0,15 10,15 25)';
SET @star_line_horizontal_1= 'LINESTRING(10 15,20 15)';
SET @star_line_vertical_1= 'LINESTRING(15 5,15 25)';
SET @star_top_to_center_1= 'LINESTRING(15 25,15 10)';
SET @star_lines_near_horizontal_1= 'MULTILINESTRING((25 0,0 15,15 30,0 5))';
SET @star_lines_near_vertical_1= 'MULTILINESTRING((0 5,15 25,0 25))';
SET @star_1= 'POLYGON((5 0,7 10,0 15,10 15,15 25,20 15,30 15,22 10,25 0,15 5,5 0))';
SET @star_elem_vertical_val_1= '((5 0,15 25,25 0,15 5,5 0))';
SET @star_elem_horizontal_val_1= '((25 0,0 15,30 15,22 10,25 0))';
SET @star_of_elems_1='MULTIPOLYGON(((5 0,15 25,25 0,15 5,5 0)),((25 0,0 15,30 15,22 10,25 0)))';
# Star like the base star, but shifted to right by 10 on X to overlap base star
SET @star_elem_vertical_2= 'POLYGON((15 0,25 25,35 0,25 5,15 0))';
SET @star_elem_horizontal_2= 'POLYGON((35 0,10 15,40 15,32 10,35 0))';
SET @star_center_2= 'POINT(25 10)';
SET @star_top_2= 'POINT(25 25)';
SET @star_bottom_left_2= 'POINT(15 0)';
SET @star_bottom_right_2= 'POINT(35 0)';
SET @star_bottom_points_2= 'MULTIPOINT(15 0,35 0)';
SET @star_all_points_2= 'MULTIPOINT(15 0,35 0,35 10,25 25)';
SET @star_line_horizontal_2= 'LINESTRING(20 15,30 15)';
SET @star_line_vertical_2= 'LINESTRING(25 5,25 25)';
SET @star_top_to_center_2= 'LINESTRING(25 25,25 10)';
SET @star_lines_near_horizontal_2= 'MULTILINESTRING((35 0,10 15,25 30,10 5))';
SET @star_lines_near_vertical_2= 'MULTILINESTRING((10 5,25 25,10 25))';
SET @star_2= 'POLYGON((15 0,17 10,10 15,20 15,25 25,30 15,40 15,32 10,35 0,25 5,15 0))';
SET @star_elem_vertical_val_2= '((15 0,25 25,35 0,25 5,15 0))';
SET @star_elem_horizontal_val_2= '((35 0,10 15,40 15,32 10,35 0))';
SET @star_of_elems_2='MULTIPOLYGON(((15 0,25 25,35 0,25 5,15 0)),((35 0,10 15,40 15,32 10,35 0)))';
# Star like the base star, but shifted to right by 60 on X to be completly separate
SET @star_elem_vertical_3= 'POLYGON((65 0,75 25,85 0,75 5,65 0))';
SET @star_elem_horizontal_3= 'POLYGON((85 0,60 15,90 15,82 10,85 0))';
SET @star_center_3= 'POINT(75 10)';
SET @star_top_3= 'POINT(75 25)';
SET @star_bottom_left_3= 'POINT(65 0)';
SET @star_bottom_right_3= 'POINT(85 0)';
SET @star_bottom_points_3= 'MULTIPOINT(65 0,85 0)';
SET @star_all_points_3= 'MULTIPOINT(65 0,85 0,75 10,75 25)';
SET @star_line_horizontal_3= 'LINESTRING(70 15,80 15)';
SET @star_line_vertical_3= 'LINESTRING(75 5,75 25)';
SET @star_top_to_center_3= 'LINESTRING(75 25,75 10)';
SET @star_lines_near_horizontal_3= 'MULTILINESTRING((85 0,60 15,85 30,60 5))';
SET @star_lines_near_vertical_3= 'MULTILINESTRING((60 5,75 25,60 25))';
SET @star_3= 'POLYGON((65 0,67 10,60 15,70 15,75 25,80 15,90 15,82 10,85 0,75 5,65 0))';
SET @star_elem_vertical_val_3= '((65 0,75 25,85 0,75 5,65 0))';
SET @star_elem_horizontal_val_3= '((85 0,60 15,90 15,82 10,85 0))';
SET @star_of_elems_3='MULTIPOLYGON(((65 0,75 25,85 0,75 5,65 0)),((85 0,60 15,90 15,82 10,85 0)))';
--echo #INSERT base star
--disable_warnings
INSERT INTO gis_geometrycollection VALUES
(100,ST_GEOMFROMTEXT(@star)),
(101,ST_GEOMFROMTEXT(@star_elem_vertical)),
(102,ST_GEOMFROMTEXT(@star_elem_horizontal)),
(103,ST_GEOMFROMTEXT(@star_of_elems)),
(104,ST_GEOMFROMTEXT(@star_top)),
(105,ST_GEOMFROMTEXT(@star_center)),
(106,ST_GEOMFROMTEXT(@star_bottom_left)),
(107,ST_GEOMFROMTEXT(@star_bottom_right)),
(108,ST_GEOMFROMTEXT(@star_bottom_points)),
(109,ST_GEOMFROMTEXT(@star_all_points)),
(110,ST_GEOMFROMTEXT(@star_line_horizontal)),
(111,ST_GEOMFROMTEXT(@star_line_vertical)),
(112,ST_GEOMFROMTEXT(@star_top_to_center)),
(113,ST_GEOMFROMTEXT(@star_lines_near_horizontal)),
(114,ST_GEOMFROMTEXT(@star_lines_near_vertical));
--enable_warnings
--echo #INSERT identical (to base) star
--disable_warnings
INSERT INTO gis_geometrycollection VALUES
(200,ST_GEOMFROMTEXT(@star_1)),
(201,ST_GEOMFROMTEXT(@star_elem_vertical_1)),
(202,ST_GEOMFROMTEXT(@star_elem_horizontal_1)),
(203,ST_GEOMFROMTEXT(@star_of_elems_1)),
(204,ST_GEOMFROMTEXT(@star_top_1)),
(205,ST_GEOMFROMTEXT(@star_center_1)),
(206,ST_GEOMFROMTEXT(@star_bottom_left_1)),
(207,ST_GEOMFROMTEXT(@star_bottom_right_1)),
(208,ST_GEOMFROMTEXT(@star_bottom_points_1)),
(209,ST_GEOMFROMTEXT(@star_all_points_1)),
(210,ST_GEOMFROMTEXT(@star_line_horizontal_1)),
(211,ST_GEOMFROMTEXT(@star_line_vertical_1)),
(212,ST_GEOMFROMTEXT(@star_top_to_center_1)),
(213,ST_GEOMFROMTEXT(@star_lines_near_horizontal_1)),
(214,ST_GEOMFROMTEXT(@star_lines_near_vertical_1));
--enable_warnings
--echo #INSERT overlapping star
--disable_warnings
INSERT INTO gis_geometrycollection VALUES
(300,ST_GEOMFROMTEXT(@star_2)),
(301,ST_GEOMFROMTEXT(@star_elem_vertical_2)),
(302,ST_GEOMFROMTEXT(@star_elem_horizontal_2)),
(303,ST_GEOMFROMTEXT(@star_of_elems_2)),
(304,ST_GEOMFROMTEXT(@star_top_2)),
(305,ST_GEOMFROMTEXT(@star_center_2)),
(306,ST_GEOMFROMTEXT(@star_bottom_left_2)),
(307,ST_GEOMFROMTEXT(@star_bottom_right_2)),
(308,ST_GEOMFROMTEXT(@star_bottom_points_2)),
(309,ST_GEOMFROMTEXT(@star_all_points_2)),
(310,ST_GEOMFROMTEXT(@star_line_horizontal_2)),
(311,ST_GEOMFROMTEXT(@star_line_vertical_2)),
(312,ST_GEOMFROMTEXT(@star_top_to_center_2)),
(313,ST_GEOMFROMTEXT(@star_lines_near_horizontal_2)),
(314,ST_GEOMFROMTEXT(@star_lines_near_vertical_2));
--enable_warnings
--echo #INSERT seperate star
--disable_warnings
INSERT INTO gis_geometrycollection VALUES
(400,ST_GEOMFROMTEXT(@star_3)),
(401,ST_GEOMFROMTEXT(@star_elem_vertical_3)),
(402,ST_GEOMFROMTEXT(@star_elem_horizontal_3)),
(403,ST_GEOMFROMTEXT(@star_of_elems_3)),
(404,ST_GEOMFROMTEXT(@star_top_3)),
(405,ST_GEOMFROMTEXT(@star_center_3)),
(406,ST_GEOMFROMTEXT(@star_bottom_left_3)),
(407,ST_GEOMFROMTEXT(@star_bottom_right_3)),
(408,ST_GEOMFROMTEXT(@star_bottom_points_3)),
(409,ST_GEOMFROMTEXT(@star_all_points_3)),
(410,ST_GEOMFROMTEXT(@star_line_horizontal_3)),
(411,ST_GEOMFROMTEXT(@star_line_vertical_3)),
(412,ST_GEOMFROMTEXT(@star_top_to_center_3)),
(413,ST_GEOMFROMTEXT(@star_lines_near_horizontal_3)),
(414,ST_GEOMFROMTEXT(@star_lines_near_vertical_3));
--enable_warnings
CREATE TABLE gis_geometrycollection_2 SELECT fid as fid2,g as g2 FROM gis_geometrycollection;
--echo #Checking the integrity of the above create/insert statements
--echo #60 rows.
SELECT count(ST_ASTEXT(g) != 'NULL') FROM gis_geometrycollection;
--echo #60 rows.
SELECT count(ST_ASTEXT(g2) != 'NULL') FROM gis_geometrycollection_2;
############################################################################################
# Checking the spatial testing functions and operator combinations #
############################################################################################
SELECT ST_ASTEXT(ST_GEOMFROMTEXT(@star));
SELECT ST_ASTEXT(ST_GEOMFROMTEXT(@star_elem_vertical));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_ASTEXT(ST_UNION(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star)));
SELECT ST_EQUALS(ST_GEOMFROMTEXT(@star),ST_UNION(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star)));
SELECT ST_EQUALS(g,ST_UNION(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star)))
FROM gis_geometrycollection WHERE fid=100;
SELECT ST_DISJOINT(ST_GEOMFROMTEXT(@star),ST_UNION(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star)));
SELECT ST_DISJOINT(g,ST_UNION(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star)))
FROM gis_geometrycollection WHERE fid=100;
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_ASTEXT(ST_UNION(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star)));
SELECT ST_EQUALS(ST_GEOMFROMTEXT(@star),ST_UNION(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star)));
SELECT ST_EQUALS(g,ST_UNION(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star)))
FROM gis_geometrycollection WHERE fid=100;
SELECT ST_INTERSECTS(ST_GEOMFROMTEXT(@star),ST_UNION(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star)));
SELECT ST_INTERSECTS(g,ST_UNION(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star)))
FROM gis_geometrycollection WHERE fid=100;
SELECT ST_ASTEXT(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_ASTEXT(ST_UNION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star)));
SELECT ST_EQUALS(ST_GEOMFROMTEXT(@star),ST_UNION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star)));
SELECT ST_EQUALS(g,ST_UNION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star)))
FROM gis_geometrycollection WHERE fid=100;
SELECT ST_CONTAINS(ST_GEOMFROMTEXT(@star),ST_UNION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star)));
SELECT ST_CONTAINS(g,ST_UNION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star)))
FROM gis_geometrycollection WHERE fid=100;
SELECT ST_ASTEXT(ST_GEOMFROMTEXT(@star));
SELECT ST_ASTEXT(ST_GEOMFROMTEXT(@star_elem_vertical));
SELECT ST_ASTEXT(ST_GEOMFROMTEXT(@star_elem_horizontal));
SELECT ST_ASTEXT(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_WITHIN(ST_SYMDIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star_2)),
ST_GEOMFROMTEXT(@star_1));
SELECT ST_OVERLAPS(ST_SYMDIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star_2)),
ST_GEOMFROMTEXT(@star_1));
SELECT ST_CROSSES(ST_SYMDIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star_2)),
ST_GEOMFROMTEXT(@star_1));
SELECT ST_CROSSES(ST_SYMDIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star_2)),
ST_GEOMFROMTEXT(@star_top_to_center_1));
SELECT ST_CROSSES(ST_SYMDIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star_2)),
ST_GEOMFROMTEXT(@star_top_to_center_2));
SELECT ST_TOUCHES(ST_SYMDIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star_2)),
ST_GEOMFROMTEXT(@star_top_1));
SELECT ST_ASTEXT(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_WITHIN(ST_DIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star_2)),
ST_GEOMFROMTEXT(@star_1));
SELECT ST_OVERLAPS(ST_DIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star_2)),
ST_GEOMFROMTEXT(@star_1));
SELECT ST_CROSSES(ST_DIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star_2)),
ST_GEOMFROMTEXT(@star_1));
SELECT ST_CROSSES(ST_DIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star_2)),
ST_GEOMFROMTEXT(@star_top_to_center_1));
SELECT ST_CROSSES(ST_DIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star_2)),
ST_GEOMFROMTEXT(@star_top_to_center_2));
SELECT ST_TOUCHES(ST_DIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),ST_GEOMFROMTEXT(@star_2)),
ST_GEOMFROMTEXT(@star_top_1));
SELECT ST_ASTEXT(ST_GEOMFROMTEXT(@star));
SELECT ST_ASTEXT(ST_GEOMFROMTEXT(@star_elem_vertical));
SELECT ST_ASTEXT(ST_GEOMFROMTEXT(@star_elem_horizontal));
--echo #-------------------------------------------------------------------------------------------
--echo # Spatial Testing functions with ST_UNION()
--echo #-------------------------------------------------------------------------------------------
SELECT ST_CONTAINS(ST_UNION(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_UNION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_EQUALS(ST_UNION(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_UNION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_DISJOINT(ST_UNION(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_UNION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_INTERSECTS(ST_UNION(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_UNION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_CROSSES(ST_UNION(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_UNION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_TOUCHES(ST_UNION(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_UNION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_WITHIN(ST_UNION(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_UNION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_OVERLAPS(ST_UNION(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_UNION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
--echo #-------------------------------------------------------------------------------------------
--echo # Spatial Testing functions with ST_DIFFERENCE()
--echo #-------------------------------------------------------------------------------------------
SELECT ST_CONTAINS(ST_DIFFERENCE(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_EQUALS(ST_DIFFERENCE(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_DISJOINT(ST_DIFFERENCE(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_INTERSECTS(ST_DIFFERENCE(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_CROSSES(ST_DIFFERENCE(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_TOUCHES(ST_DIFFERENCE(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_WITHIN(ST_DIFFERENCE(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_OVERLAPS(ST_DIFFERENCE(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
--echo #-------------------------------------------------------------------------------------------
--echo # Spatial Testing functions with ST_SYMDIFFERENCE()
--echo #-------------------------------------------------------------------------------------------
SELECT ST_CONTAINS(ST_SYMDIFFERENCE(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_EQUALS(ST_SYMDIFFERENCE(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_DISJOINT(ST_SYMDIFFERENCE(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_INTERSECTS(ST_SYMDIFFERENCE(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_CROSSES(ST_SYMDIFFERENCE(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_TOUCHES(ST_SYMDIFFERENCE(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_WITHIN(ST_SYMDIFFERENCE(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_OVERLAPS(ST_SYMDIFFERENCE(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
--echo #-------------------------------------------------------------------------------------------
--echo # Spatial Testing functions with ST_INTERSECTION()
--echo #-------------------------------------------------------------------------------------------
SELECT ST_CONTAINS(ST_INTERSECTION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_INTERSECTION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_EQUALS(ST_INTERSECTION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_INTERSECTION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_DISJOINT(ST_INTERSECTION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_INTERSECTION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_INTERSECTS(ST_INTERSECTION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_INTERSECTION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_CROSSES(ST_INTERSECTION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_INTERSECTION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_TOUCHES(ST_INTERSECTION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_INTERSECTION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_WITHIN(ST_INTERSECTION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_INTERSECTION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
SELECT ST_OVERLAPS(ST_INTERSECTION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_INTERSECTION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2)));
--echo #-------------------------------------------------------------------------------------------
--echo # Spatial Operators with ST_UNION()
--echo #-------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_UNION(ST_UNION(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_UNION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2))));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_UNION(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_UNION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2))));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_UNION(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_UNION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2))));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_UNION(ST_UNION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_UNION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2))));
--echo #-------------------------------------------------------------------------------------------
--echo # Spatial Operators with ST_DIFFERENCE()
--echo #-------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_UNION(ST_DIFFERENCE(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2))));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_DIFFERENCE(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2))));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_DIFFERENCE(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2))));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_DIFFERENCE(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_DIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2))));
--echo #-------------------------------------------------------------------------------------------
--echo # Spatial Operators with ST_SYMDIFFERENCE()
--echo #-------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_UNION(ST_SYMDIFFERENCE(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2))));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_SYMDIFFERENCE(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2))));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_SYMDIFFERENCE(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2))));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_SYMDIFFERENCE(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2))));
--echo #-------------------------------------------------------------------------------------------
--echo # Spatial Operators with ST_INTERSECTION()
--echo #-------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_UNION(ST_INTERSECTION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_INTERSECTION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2))));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_INTERSECTION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_INTERSECTION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2))));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_INTERSECTION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_INTERSECTION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2))));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_INTERSECTION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star_elem_horizontal),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_GEOMFROMTEXT(@star_2)),ST_INTERSECTION(ST_GEOMFROMTEXT(@star_1),ST_GEOMFROMTEXT(@star_2))));
--echo #=======================================================================================
--echo # Testing with combinations of 3 functions
--echo #=======================================================================================
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_ASTEXT(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
--echo #-------------------------------------------------------------------------------------------
--echo # Spatial Testing functions with combination of ST_UNION() and ST_DIFFERENCE
--echo #-------------------------------------------------------------------------------------------
SELECT ST_CONTAINS(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_EQUALS(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_DISJOINT(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_INTERSECTS(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_CROSSES(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_OVERLAPS(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_TOUCHES(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_WITHIN(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
--echo #-------------------------------------------------------------------------------------------
--echo # Spatial Testing functions with combination of ST_UNION() and ST_SYMDIFFERENCE
--echo #-------------------------------------------------------------------------------------------
SELECT ST_CONTAINS(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_EQUALS(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_DISJOINT(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_INTERSECTS(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_CROSSES(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_OVERLAPS(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_TOUCHES(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_WITHIN(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
--echo #-------------------------------------------------------------------------------------------
--echo # Spatial Testing functions with combination of ST_UNION() and ST_INTERSECTION
--echo #-------------------------------------------------------------------------------------------
SELECT ST_CONTAINS(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_EQUALS(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_DISJOINT(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_INTERSECTS(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_CROSSES(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_OVERLAPS(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_TOUCHES(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_WITHIN(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
--echo #-------------------------------------------------------------------------------------------
--echo # Spatial Testing functions with combination of ST_DIFFERENCE() and ST_UNION
--echo #-------------------------------------------------------------------------------------------
SELECT ST_CONTAINS(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_EQUALS(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_DISJOINT(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_INTERSECTS(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_CROSSES(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_OVERLAPS(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_TOUCHES(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_WITHIN(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
--echo #-------------------------------------------------------------------------------------------
--echo # Spatial Testing functions with combination of ST_DIFFERENCE() and ST_SYMDIFFERENCE
--echo #-------------------------------------------------------------------------------------------
SELECT ST_CONTAINS(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_EQUALS(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_DISJOINT(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_INTERSECTS(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_CROSSES(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_OVERLAPS(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_TOUCHES(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_WITHIN(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
--echo #-------------------------------------------------------------------------------------------
--echo # Spatial Testing functions with combination of ST_DIFFERENCE() and ST_INTERSECTION
--echo #-------------------------------------------------------------------------------------------
SELECT ST_CONTAINS(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_EQUALS(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_DISJOINT(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_INTERSECTS(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_CROSSES(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_OVERLAPS(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_TOUCHES(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_WITHIN(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
--echo #-------------------------------------------------------------------------------------------
--echo # Spatial Testing functions with combination of ST_SYMDIFFERENCE() and ST_UNION
--echo #-------------------------------------------------------------------------------------------
SELECT ST_CONTAINS(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_EQUALS(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_DISJOINT(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_INTERSECTS(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_CROSSES(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_OVERLAPS(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_TOUCHES(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_WITHIN(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
--echo #-------------------------------------------------------------------------------------------
--echo # Spatial Testing functions with combination of ST_SYMDIFFERENCE() and ST_DIFFERENCE
--echo #-------------------------------------------------------------------------------------------
SELECT ST_CONTAINS(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_EQUALS(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_DISJOINT(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_INTERSECTS(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_CROSSES(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_OVERLAPS(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_TOUCHES(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_WITHIN(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
--echo #----------------------------------------------------------------------------------------------
--echo # Spatial Testing functions with combination of ST_SYMDIFFERENCE() and ST_INTERSECTION
--echo #----------------------------------------------------------------------------------------------
SELECT ST_CONTAINS(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_EQUALS(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_DISJOINT(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_INTERSECTS(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_CROSSES(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_OVERLAPS(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_TOUCHES(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_WITHIN(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
--echo #-------------------------------------------------------------------------------------------
--echo # Spatial Testing functions with combination of ST_INTERSECTION() and ST_UNION
--echo #-------------------------------------------------------------------------------------------
SELECT ST_CONTAINS(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_EQUALS(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_DISJOINT(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_INTERSECTS(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_CROSSES(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_OVERLAPS(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_TOUCHES(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_WITHIN(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
--echo #-------------------------------------------------------------------------------------------
--echo # Spatial Testing functions with combination of ST_INTERSECTION() and ST_DIFFERENCE
--echo #-------------------------------------------------------------------------------------------
SELECT ST_CONTAINS(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_EQUALS(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_DISJOINT(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_INTERSECTS(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_CROSSES(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_OVERLAPS(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_TOUCHES(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_WITHIN(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
--echo #---------------------------------------------------------------------------------------------
--echo # Spatial Testing functions with combination of ST_INTERSECTION() and ST_SYMDIFFERENCE
--echo #---------------------------------------------------------------------------------------------
SELECT ST_CONTAINS(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_EQUALS(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_DISJOINT(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_INTERSECTS(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_CROSSES(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_OVERLAPS(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_TOUCHES(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
SELECT ST_WITHIN(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)));
--echo #---------------------------------------------------------------------------------------------
--echo # Spatial Operators with combination of ST_UNION() and ST_DIFFERENCE
--echo #---------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_UNION(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
--echo #---------------------------------------------------------------------------------------------
--echo # Spatial Operators with combination of ST_UNION() and ST_SYMDIFFERENCE
--echo #---------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_UNION(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
--echo #---------------------------------------------------------------------------------------------
--echo # Spatial Operators with combination of ST_UNION() and ST_INTERSECTION
--echo #---------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_UNION(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
--echo #---------------------------------------------------------------------------------------------
--echo # Spatial Operators with combination of ST_DIFFERENCE() and ST_UNION
--echo #---------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_UNION(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
--echo #---------------------------------------------------------------------------------------------
--echo # Spatial Operators with combination of ST_DIFFERENCE() and ST_SYMDIFFERENCE
--echo #---------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_UNION(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
--echo #---------------------------------------------------------------------------------------------
--echo # Spatial Operators with combination of ST_DIFFERENCE() and ST_INTERSECTION
--echo #---------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_UNION(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
--echo #---------------------------------------------------------------------------------------------
--echo # Spatial Operators with combination of ST_SYMDIFFERENCE() and ST_UNION
--echo #---------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_UNION(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
--echo #---------------------------------------------------------------------------------------------
--echo # Spatial Operators with combination of ST_SYMDIFFERENCE() and ST_DIFFERENCE
--echo #---------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_UNION(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
--echo #---------------------------------------------------------------------------------------------
--echo # Spatial Operators with combination of ST_SYMDIFFERENCE() and ST_INTERSECTION
--echo #---------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_UNION(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
--echo #---------------------------------------------------------------------------------------------
--echo # Spatial Operators with combination of ST_INTERSECTION() and ST_UNION
--echo #---------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_UNION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_UNION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
--echo #---------------------------------------------------------------------------------------------
--echo # Spatial Operators with combination of ST_INTERSECTION() and ST_DIFFERENCE
--echo #---------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_UNION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_DIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
--echo #---------------------------------------------------------------------------------------------
--echo # Spatial Operators with combination of ST_INTERSECTION() and ST_SYMDIFFERENCE
--echo #---------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_UNION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_INTERSECTION(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical)),
ST_SYMDIFFERENCE(ST_GEOMFROMTEXT(@star),ST_GEOMFROMTEXT(@star_elem_vertical))));
--echo #=======================================================================================
--echo # Spatial set operations involving empty geometry collections.
--echo #=======================================================================================
--echo #---------------------------------------------------------------------------------------------
--echo # Empty collection and empty collection
--echo #---------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_UNION(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)'))));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)'))));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)'))));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)'))));
--echo #---------------------------------------------------------------------------------------------
--echo # Empty collection and non-empty collection
--echo #---------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_UNION(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_DIFFERENCE(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)'))));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_DIFFERENCE(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)'))));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_DIFFERENCE(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)'))));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_DIFFERENCE(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)'))));
--echo #---------------------------------------------------------------------------------------------
--echo # Non-empty collection and empty collection
--echo #---------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_UNION(ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)'),ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)'))));
SELECT ST_ASTEXT(ST_INTERSECTION(ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)'),ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)'))));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)'),ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)'))));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)'),ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)'))));
--echo #---------------------------------------------------------------------------------------------
--echo # Empty intermediate or final result
--echo #---------------------------------------------------------------------------------------------
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)'),ST_GEOMFROMTEXT('MULTIPOINT(0 0, 4 4)')));
SELECT ST_ASTEXT(ST_DIFFERENCE(ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)'),ST_GEOMFROMTEXT('MULTIPOINT(0 0, 4 4)')));
SELECT ST_ASTEXT(ST_SYMDIFFERENCE(ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')));
--echo #=======================================================================================
--echo # Spatial relation check operations involving empty geometry collections.
--echo #=======================================================================================
--echo #---------------------------------------------------------------------------------------------
--echo # Empty collection and empty collection
--echo #---------------------------------------------------------------------------------------------
SELECT ST_INTERSECTS(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_DISJOINT(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_EQUALS(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_CONTAINS(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_WITHIN(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_TOUCHES(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_OVERLAPS(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_CROSSES(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
--echo #---------------------------------------------------------------------------------------------
--echo # Empty collection and non-empty collection
--echo #---------------------------------------------------------------------------------------------
SELECT ST_INTERSECTS(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_UNION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_DISJOINT(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_UNION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_EQUALS(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_UNION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_CONTAINS(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_UNION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_WITHIN(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_UNION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_TOUCHES(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_UNION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_OVERLAPS(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_UNION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_CROSSES(ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_UNION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
--echo #---------------------------------------------------------------------------------------------
--echo # Non-empty collection and empty collection
--echo #---------------------------------------------------------------------------------------------
SELECT ST_INTERSECTS(ST_UNION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_DISJOINT(ST_UNION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_EQUALS(ST_UNION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_CONTAINS(ST_UNION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_WITHIN(ST_UNION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_TOUCHES(ST_UNION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_OVERLAPS(ST_UNION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
SELECT ST_CROSSES(ST_UNION(ST_GEOMFROMTEXT('POINT(1 1)'),ST_GEOMFROMTEXT('MULTIPOINT(2 2, 3 3)')),
ST_INTERSECTION(ST_GEOMFROMTEXT('POINT(0 0)'), ST_GEOMFROMTEXT('POINT(1 1)')));
--echo #clean up
DROP TABLE gis_geometrycollection;
DROP TABLE gis_geometrycollection_2;