DROP TABLE IF EXISTS t1; select 1, ST_Intersects(GeomFromText('POLYGON((0 0,20 0,20 20,0 20,0 0))'), GeomFromText('POLYGON((10 10,30 10,30 30,10 30,10 10))')); 1 ST_Intersects(GeomFromText('POLYGON((0 0,20 0,20 20,0 20,0 0))'), GeomFromText('POLYGON((10 10,30 10,30 30,10 30,10 10))')) 1 1 select 0, ST_Intersects(GeomFromText('POLYGON((0 0,20 10,10 30, 0 0))'), GeomFromText('POLYGON((10 40, 40 50, 20 70, 10 40))')); 0 ST_Intersects(GeomFromText('POLYGON((0 0,20 10,10 30, 0 0))'), GeomFromText('POLYGON((10 40, 40 50, 20 70, 10 40))')) 0 0 select 1, ST_Intersects(GeomFromText('POLYGON((0 0,20 10,10 30, 0 0))'), GeomFromText('POINT(10 10)')); 1 ST_Intersects(GeomFromText('POLYGON((0 0,20 10,10 30, 0 0))'), GeomFromText('POINT(10 10)')) 1 1 select 1, ST_Intersects(GeomFromText('POLYGON((0 0,20 10,10 30, 0 0))'), GeomFromText('POLYGON((10 10,30 20,20 40, 10 10))')); 1 ST_Intersects(GeomFromText('POLYGON((0 0,20 10,10 30, 0 0))'), GeomFromText('POLYGON((10 10,30 20,20 40, 10 10))')) 1 1 select 0, ST_Within(GeomFromText('POLYGON((0 0,20 10,10 30, 0 0))'), GeomFromText('POLYGON((10 10,30 20,20 40, 10 10))')); 0 ST_Within(GeomFromText('POLYGON((0 0,20 10,10 30, 0 0))'), GeomFromText('POLYGON((10 10,30 20,20 40, 10 10))')) 0 0 select 1, ST_Within(GeomFromText('POLYGON((1 1,20 10,10 30, 1 1))'), GeomFromText('POLYGON((0 0,30 5,10 40, 0 0))')); 1 ST_Within(GeomFromText('POLYGON((1 1,20 10,10 30, 1 1))'), GeomFromText('POLYGON((0 0,30 5,10 40, 0 0))')) 1 1 create table t1 (g point); insert into t1 values (GeomFromText('POINT(2 2)')), (GeomFromText('POINT(2 4)')), (GeomFromText('POINT(2 6)')), (GeomFromText('POINT(2 8)')), (GeomFromText('POINT(4 2)')), (GeomFromText('POINT(4 4)')), (GeomFromText('POINT(4 6)')), (GeomFromText('POINT(4 8)')), (GeomFromText('POINT(6 2)')), (GeomFromText('POINT(6 4)')), (GeomFromText('POINT(6 6)')), (GeomFromText('POINT(6 8)')), (GeomFromText('POINT(8 2)')), (GeomFromText('POINT(8 4)')), (GeomFromText('POINT(8 6)')), (GeomFromText('POINT(8 8)')); select astext(g) from t1 where ST_Within(g, GeomFromText('POLYGON((5 1, 7 1, 7 7, 5 7, 3 3, 5 3, 5 1))')); astext(g) POINT(4 4) POINT(6 2) POINT(6 4) POINT(6 6) select 'Contains'; Contains Contains select astext(g) from t1 where ST_Contains(GeomFromText('POLYGON((5 1, 7 1, 7 7, 5 7, 3 3, 5 3, 5 1))'), g); astext(g) POINT(4 4) POINT(6 2) POINT(6 4) POINT(6 6) select 'Intersects'; Intersects Intersects select astext(g) from t1 where ST_Intersects(GeomFromText('POLYGON((5 1, 7 1, 7 7, 5 7, 3 3, 5 3, 5 1))'), g); astext(g) POINT(4 4) POINT(6 2) POINT(6 4) POINT(6 6) select 'Contains'; Contains Contains select astext(g) from t1 where ST_Contains(GeomFromText('POLYGON((5 1, 7 1, 7 7, 5 7, 3 3, 5 3, 5 1))'), g); astext(g) POINT(4 4) POINT(6 2) POINT(6 4) POINT(6 6) select 'Contains2'; Contains2 Contains2 select astext(g) from t1 where ST_Contains(GeomFromText('POLYGON((5 1, 7 1, 7 7, 5 7, 3 3, 5 3, 5 1), (5.01 3.01, 6 5, 9 5, 8 3, 5.01 3.01))'), g); astext(g) POINT(4 4) POINT(6 2) POINT(6 6) POINT(8 4) DROP TABLE t1; select 0, ST_Within(GeomFromText('LINESTRING(15 15, 50 50, 60 60)'), GeomFromText('POLYGON((10 10,30 20,20 40, 10 10))')); 0 ST_Within(GeomFromText('LINESTRING(15 15, 50 50, 60 60)'), GeomFromText('POLYGON((10 10,30 20,20 40, 10 10))')) 0 0 select 1, ST_Within(GeomFromText('LINESTRING(15 15, 16 16)'), GeomFromText('POLYGON((10 10,30 20,20 40, 10 10))')); 1 ST_Within(GeomFromText('LINESTRING(15 15, 16 16)'), GeomFromText('POLYGON((10 10,30 20,20 40, 10 10))')) 1 1 select 1, ST_Intersects(GeomFromText('LINESTRING(15 15, 50 50)'), GeomFromText('LINESTRING(50 15, 15 50)')); 1 ST_Intersects(GeomFromText('LINESTRING(15 15, 50 50)'), GeomFromText('LINESTRING(50 15, 15 50)')) 1 1 select 0, ST_Intersects(GeomFromText('LINESTRING(15 15, 50 50)'), GeomFromText('LINESTRING(16 16, 51 51)')); 0 ST_Intersects(GeomFromText('LINESTRING(15 15, 50 50)'), GeomFromText('LINESTRING(16 16, 51 51)')) 0 1 select 1, ST_Intersects(GeomFromText('POLYGON((0 0, 50 45, 40 50, 0 0))'), GeomFromText('POLYGON((50 5, 55 10, 0 45, 50 5))')); 1 ST_Intersects(GeomFromText('POLYGON((0 0, 50 45, 40 50, 0 0))'), GeomFromText('POLYGON((50 5, 55 10, 0 45, 50 5))')) 1 1 select astext(ST_Union(geometryfromtext('point(1 1)'), geometryfromtext('polygon((0 0, 2 0, 1 2, 0 0))'))); astext(ST_Union(geometryfromtext('point(1 1)'), geometryfromtext('polygon((0 0, 2 0, 1 2, 0 0))'))) POLYGON((0 0,1 2,2 0,0 0)) select astext(ST_Intersection(geometryfromtext('point(1 1)'), geometryfromtext('polygon((0 0, 2 0, 1 2, 0 0))'))); astext(ST_Intersection(geometryfromtext('point(1 1)'), geometryfromtext('polygon((0 0, 2 0, 1 2, 0 0))'))) POINT(1 1) select ST_Intersects(GeomFromText('POLYGON((0 0, 50 45, 40 50, 0 0))'), GeomFromText('POLYGON((50 5, 55 10, 0 45, 50 5))')); ST_Intersects(GeomFromText('POLYGON((0 0, 50 45, 40 50, 0 0))'), GeomFromText('POLYGON((50 5, 55 10, 0 45, 50 5))')) 1 select ST_contains(GeomFromText('MULTIPOLYGON(((0 0, 0 5, 5 5, 5 0, 0 0)), ((6 6, 6 11, 11 11, 11 6, 6 6)))'), GeomFromText('POINT(5 10)')); ST_contains(GeomFromText('MULTIPOLYGON(((0 0, 0 5, 5 5, 5 0, 0 0)), ((6 6, 6 11, 11 11, 11 6, 6 6)))'), GeomFromText('POINT(5 10)')) 0 select ST_Disjoint(GeomFromText('POLYGON((0 0, 0 5, 5 5, 5 0, 0 0))'), GeomFromText('POLYGON((10 10, 10 15, 15 15, 15 10, 10 10))')); ST_Disjoint(GeomFromText('POLYGON((0 0, 0 5, 5 5, 5 0, 0 0))'), GeomFromText('POLYGON((10 10, 10 15, 15 15, 15 10, 10 10))')) 1 select ST_Disjoint(GeomFromText('POLYGON((0 0, 0 5, 5 5, 5 0, 0 0))'), GeomFromText('POLYGON((10 10, 10 4, 4 4, 4 10, 10 10))')); ST_Disjoint(GeomFromText('POLYGON((0 0, 0 5, 5 5, 5 0, 0 0))'), GeomFromText('POLYGON((10 10, 10 4, 4 4, 4 10, 10 10))')) 0 select ST_Overlaps(GeomFromText('POLYGON((0 0, 0 5, 5 5, 5 0, 0 0))'), GeomFromText('POLYGON((10 10, 10 4, 4 4, 4 10, 10 10))')); ST_Overlaps(GeomFromText('POLYGON((0 0, 0 5, 5 5, 5 0, 0 0))'), GeomFromText('POLYGON((10 10, 10 4, 4 4, 4 10, 10 10))')) 1 select ST_Overlaps(GeomFromText('POLYGON((0 0, 0 5, 5 5, 5 0, 0 0))'), GeomFromText('POLYGON((1 1, 1 4, 4 4, 4 1, 1 1))')); ST_Overlaps(GeomFromText('POLYGON((0 0, 0 5, 5 5, 5 0, 0 0))'), GeomFromText('POLYGON((1 1, 1 4, 4 4, 4 1, 1 1))')) 0 select ST_DISTANCE(geomfromtext('polygon((0 0, 1 2, 2 1, 0 0))'), geomfromtext('polygon((2 2, 3 4, 4 3, 2 2))')); ST_DISTANCE(geomfromtext('polygon((0 0, 1 2, 2 1, 0 0))'), geomfromtext('polygon((2 2, 3 4, 4 3, 2 2))')) 0.7071067811865475 select ST_DISTANCE(geomfromtext('polygon((0 0, 1 2, 2 1, 0 0))'), geomfromtext('linestring(0 1, 1 0)')); ST_DISTANCE(geomfromtext('polygon((0 0, 1 2, 2 1, 0 0))'), geomfromtext('linestring(0 1, 1 0)')) 0 select ST_DISTANCE(geomfromtext('polygon((0 0, 3 6, 6 3, 0 0))'), geomfromtext('polygon((2 2, 3 4, 4 3, 2 2))')); ST_DISTANCE(geomfromtext('polygon((0 0, 3 6, 6 3, 0 0))'), geomfromtext('polygon((2 2, 3 4, 4 3, 2 2))')) 0 select ST_DISTANCE(geomfromtext('polygon((0 0, 3 6, 6 3, 0 0),(2 2, 3 4, 4 3, 2 2))'), geomfromtext('point(3 3)')); ST_DISTANCE(geomfromtext('polygon((0 0, 3 6, 6 3, 0 0),(2 2, 3 4, 4 3, 2 2))'), geomfromtext('point(3 3)')) 0.4472135954999579 select ST_DISTANCE(geomfromtext('linestring(0 0, 3 6, 6 3, 0 0)'), geomfromtext('polygon((2 2, 3 4, 4 3, 2 2))')); ST_DISTANCE(geomfromtext('linestring(0 0, 3 6, 6 3, 0 0)'), geomfromtext('polygon((2 2, 3 4, 4 3, 2 2))')) 0.8944271909999159 select astext(ST_Intersection(GeomFromText('POLYGON((0 0, 50 45, 40 50, 0 0))'), GeomFromText('POLYGON((50 5, 55 10, 0 45, 50 5))'))); astext(ST_Intersection(GeomFromText('POLYGON((0 0, 50 45, 40 50, 0 0))'), GeomFromText('POLYGON((50 5, 55 10, 0 45, 50 5))'))) POLYGON((26.47058823529412 23.823529411764707,21.951219512195124 27.439024390243905,23.855421686746986 29.819277108433734,29.289940828402365 26.36094674556213,26.47058823529412 23.823529411764707)) select astext(ST_Intersection(GeomFromText('LINESTRING(0 0, 50 45, 40 50, 0 0)'), GeomFromText('LINESTRING(50 5, 55 10, 0 45, 50 5)'))); astext(ST_Intersection(GeomFromText('LINESTRING(0 0, 50 45, 40 50, 0 0)'), GeomFromText('LINESTRING(50 5, 55 10, 0 45, 50 5)'))) MULTIPOINT(26.47058823529412 23.823529411764707,29.289940828402365 26.36094674556213,21.951219512195124 27.439024390243905,23.855421686746986 29.819277108433734) select astext(ST_Intersection(GeomFromText('LINESTRING(0 0, 50 45, 40 50)'), GeomFromText('LINESTRING(50 5, 55 10, 0 45)'))); astext(ST_Intersection(GeomFromText('LINESTRING(0 0, 50 45, 40 50)'), GeomFromText('LINESTRING(50 5, 55 10, 0 45)'))) POINT(29.289940828402365 26.36094674556213) select astext(ST_Intersection(GeomFromText('POLYGON((0 0, 50 45, 40 50, 0 0))'), GeomFromText('POINT(20 20)'))); astext(ST_Intersection(GeomFromText('POLYGON((0 0, 50 45, 40 50, 0 0))'), GeomFromText('POINT(20 20)'))) POINT(20 20) select astext(ST_Intersection(GeomFromText('POLYGON((0 0, 50 45, 40 50, 0 0))'), GeomFromText('LINESTRING(-10 -10, 200 200)'))); astext(ST_Intersection(GeomFromText('POLYGON((0 0, 50 45, 40 50, 0 0))'), GeomFromText('LINESTRING(-10 -10, 200 200)'))) LINESTRING(0 0,46.666666666666664 46.666666666666664) select astext(ST_Intersection(GeomFromText('POLYGON((0 0, 50 45, 40 50, 0 0))'), GeomFromText('LINESTRING(-10 -10, 200 200, 199 201, -11 -9)'))); astext(ST_Intersection(GeomFromText('POLYGON((0 0, 50 45, 40 50, 0 0))'), GeomFromText('LINESTRING(-10 -10, 200 200, 199 201, -11 -9)'))) MULTILINESTRING((0 0,46.666666666666664 46.666666666666664),(8 10,45.33333333333333 47.33333333333333)) select astext(ST_UNION(GeomFromText('POLYGON((0 0, 50 45, 40 50, 0 0))'), GeomFromText('LINESTRING(-10 -10, 200 200, 199 201, -11 -9)'))); astext(ST_UNION(GeomFromText('POLYGON((0 0, 50 45, 40 50, 0 0))'), GeomFromText('LINESTRING(-10 -10, 200 200, 199 201, -11 -9)'))) GEOMETRYCOLLECTION(LINESTRING(-10 -10,0 0),LINESTRING(-11 -9,8 10),POLYGON((0 0,40 50,50 45,0 0)),LINESTRING(46.666666666666664 46.666666666666664,200 200,199 201,45.33333333333333 47.33333333333333)) select astext(ST_intersection(geomfromtext('polygon((0 0, 1 0, 0 1, 0 0))'), geomfromtext('polygon((0 0, 1 1, 0 2, 0 0))'))); astext(ST_intersection(geomfromtext('polygon((0 0, 1 0, 0 1, 0 0))'), geomfromtext('polygon((0 0, 1 1, 0 2, 0 0))'))) POLYGON((0 0,0 1,0.5 0.5,0 0)) select astext(ST_symdifference(geomfromtext('polygon((0 0, 1 0, 0 1, 0 0))'), geomfromtext('polygon((0 0, 1 1, 0 2, 0 0))'))); astext(ST_symdifference(geomfromtext('polygon((0 0, 1 0, 0 1, 0 0))'), geomfromtext('polygon((0 0, 1 1, 0 2, 0 0))'))) MULTIPOLYGON(((0 0,0.5 0.5,1 0,0 0)),((0.5 0.5,0 1,0 2,1 1,0.5 0.5))) select astext(ST_UNION(GeomFromText('POLYGON((0 0, 50 45, 40 50, 0 0))'), GeomFromText('LINESTRING(-10 -10, 200 200, 199 201, -11 -9)'))); astext(ST_UNION(GeomFromText('POLYGON((0 0, 50 45, 40 50, 0 0))'), GeomFromText('LINESTRING(-10 -10, 200 200, 199 201, -11 -9)'))) GEOMETRYCOLLECTION(LINESTRING(-10 -10,0 0),LINESTRING(-11 -9,8 10),POLYGON((0 0,40 50,50 45,0 0)),LINESTRING(46.666666666666664 46.666666666666664,200 200,199 201,45.33333333333333 47.33333333333333)) select astext(ST_buffer(geometryfromtext('point(1 1)'), 1)); astext(ST_buffer(geometryfromtext('point(1 1)'), 1)) POLYGON((1 0,0.950932325672582 0.001204543794827595,0.9019828596704393 0.004815273327803182,0.8532695255446382 0.010823490035218986,0.8049096779838717 0.01921471959676957,0.7570198200967361 0.029968746805456026,0.7097153227455377 0.043059664267791065,0.6631101466077799 0.058455934816979194,0.6173165676349102 0.07612046748871326,0.5724449065697179 0.09601070687655666,0.5286032631740024 0.11807873565164506,0.48589725580677834 0.14227138999972788,0.4444297669803978 0.16853038769745476,0.40430069550756664 0.19679246851935517,0.3656067158363545 0.226989546637263,0.32844104515298167 0.2590488746450409,0.29289321881345254 0.29289321881345254,0.2590488746450409 0.32844104515298167,0.226989546637263 0.3656067158363545,0.19679246851935517 0.40430069550756664,0.16853038769745476 0.4444297669803978,0.14227138999972788 0.48589725580677834,0.11807873565164506 0.5286032631740024,0.09601070687655666 0.5724449065697179,0.07612046748871326 0.6173165676349102,0.058455934816979194 0.6631101466077799,0.043059664267791065 0.7097153227455377,0.029968746805456026 0.7570198200967361,0.01921471959676957 0.8049096779838717,0.010823490035218986 0.8532695255446382,0.004815273327803182 0.9019828596704393,0.001204543794827595 0.950932325672582,0 1,0.004815273327803182 1.0980171403295607,0.010823490035218986 1.146730474455362,0.01921471959676957 1.1950903220161284,0.029968746805456026 1.2429801799032638,0.043059664267791065 1.2902846772544623,0.058455934816979194 1.3368898533922202,0.07612046748871326 1.3826834323650898,0.09601070687655666 1.427555093430282,0.11807873565164506 1.4713967368259975,0.14227138999972788 1.5141027441932216,0.16853038769745476 1.5555702330196022,0.19679246851935517 1.5956993044924332,0.226989546637263 1.6343932841636455,0.2590488746450409 1.6715589548470184,0.29289321881345254 1.7071067811865475,0.32844104515298167 1.7409511253549592,0.3656067158363545 1.7730104533627369,0.40430069550756664 1.8032075314806448,0.4444297669803978 1.8314696123025453,0.48589725580677834 1.8577286100002721,0.5286032631740024 1.881921264348355,0.5724449065697179 1.9039892931234434,0.6173165676349102 1.9238795325112867,0.6631101466077799 1.9415440651830207,0.7097153227455377 1.956940335732209,0.7570198200967361 1.970031253194544,0.8049096779838717 1.9807852804032304,0.8532695255446382 1.9891765099647811,0.9019828596704393 1.9951847266721967,0.950932325672582 1.9987954562051724,1 2,1.049067674327418 1.9987954562051724,1.0980171403295607 1.9951847266721967,1.146730474455362 1.9891765099647811,1.1950903220161284 1.9807852804032304,1.2429801799032638 1.970031253194544,1.2902846772544623 1.956940335732209,1.3368898533922202 1.9415440651830207,1.3826834323650898 1.9238795325112867,1.427555093430282 1.9039892931234434,1.4713967368259975 1.881921264348355,1.5141027441932216 1.8577286100002721,1.5555702330196022 1.8314696123025453,1.5956993044924332 1.8032075314806448,1.6343932841636455 1.7730104533627369,1.6715589548470184 1.7409511253549592,1.7071067811865475 1.7071067811865475,1.7409511253549592 1.6715589548470184,1.7730104533627369 1.6343932841636455,1.8032075314806448 1.5956993044924332,1.8314696123025453 1.5555702330196022,1.8577286100002721 1.5141027441932216,1.881921264348355 1.4713967368259975,1.9039892931234434 1.427555093430282,1.9238795325112867 1.3826834323650898,1.9415440651830207 1.3368898533922202,1.956940335732209 1.2902846772544623,1.970031253194544 1.2429801799032638,1.9807852804032304 1.1950903220161284,1.9891765099647811 1.146730474455362,1.9951847266721967 1.0980171403295607,1.9987954562051724 1.049067674327418,2 1,1.9951847266721967 0.9019828596704393,1.9891765099647811 0.8532695255446382,1.9807852804032304 0.8049096779838717,1.970031253194544 0.7570198200967361,1.956940335732209 0.7097153227455377,1.9415440651830207 0.6631101466077799,1.9238795325112867 0.6173165676349102,1.9039892931234434 0.5724449065697179,1.881921264348355 0.5286032631740024,1.8577286100002721 0.48589725580677834,1.8314696123025453 0.4444297669803978,1.8032075314806448 0.40430069550756664,1.7730104533627369 0.3656067158363545,1.7409511253549592 0.32844104515298167,1.7071067811865475 0.29289321881345254,1.6715589548470184 0.2590488746450409,1.6343932841636455 0.226989546637263,1.5956993044924332 0.19679246851935517,1.5555702330196022 0.16853038769745476,1.5141027441932216 0.14227138999972788,1.4713967368259975 0.11807873565164506,1.427555093430282 0.09601070687655666,1.3826834323650898 0.07612046748871326,1.3368898533922202 0.058455934816979194,1.2902846772544623 0.043059664267791065,1.2429801799032638 0.029968746805456026,1.1950903220161284 0.01921471959676957,1.146730474455362 0.010823490035218986,1.0980171403295607 0.004815273327803182,1.049067674327418 0.001204543794827595,1 0)) create table t1(geom geometrycollection); insert into t1 values (geomfromtext('POLYGON((0 0, 10 10, 0 8, 0 0))')); insert into t1 values (geomfromtext('POLYGON((1 1, 10 10, 0 8, 1 1))')); select astext(geom), area(geom),round(area(ST_buffer(geom,2)), 7) from t1; astext(geom) area(geom) round(area(ST_buffer(geom,2)), 7) POLYGON((0 0,10 10,0 8,0 0)) 40 117.2416764 POLYGON((1 1,10 10,0 8,1 1)) 36 108.5553959 select ST_NUMPOINTS(ST_EXTERIORRING(ST_buffer(geom,2))) from t1; ST_NUMPOINTS(ST_EXTERIORRING(ST_buffer(geom,2))) 133 134 set @geom=geomfromtext('LINESTRING(2 1, 4 2, 2 3, 2 5)'); set @buff=ST_buffer(@geom,1); select ST_NUMPOINTS(ST_EXTERIORRING(@buff)); ST_NUMPOINTS(ST_EXTERIORRING(@buff)) 202 DROP TABLE t1; select st_touches(geomfromtext('point(0 0)'), geomfromtext('point(1 1)')); st_touches(geomfromtext('point(0 0)'), geomfromtext('point(1 1)')) 0 select st_touches(geomfromtext('point(1 1)'), geomfromtext('point(1 1)')); st_touches(geomfromtext('point(1 1)'), geomfromtext('point(1 1)')) 0 select st_touches(geomfromtext('polygon((0 0, 2 2, 0 4, 0 0))'), geomfromtext('point(1 1)')); st_touches(geomfromtext('polygon((0 0, 2 2, 0 4, 0 0))'), geomfromtext('point(1 1)')) 1 select st_touches(geomfromtext('polygon((0 0, 2 2, 0 4, 0 0))'), geomfromtext('point(1 0)')); st_touches(geomfromtext('polygon((0 0, 2 2, 0 4, 0 0))'), geomfromtext('point(1 0)')) 0 select st_touches(geomfromtext('polygon((0 0, 2 2, 0 4, 0 0))'), geomfromtext('point(1 2)')); st_touches(geomfromtext('polygon((0 0, 2 2, 0 4, 0 0))'), geomfromtext('point(1 2)')) 0 select st_touches(geomfromtext('polygon((0 0, 2 2, 0 4, 0 0))'), geomfromtext('polygon((1 1.2, 1 0, 2 0, 1 1.2))')); st_touches(geomfromtext('polygon((0 0, 2 2, 0 4, 0 0))'), geomfromtext('polygon((1 1.2, 1 0, 2 0, 1 1.2))')) 0 select st_touches(geomfromtext('polygon((0 0, 2 2, 0 4, 0 0))'), geomfromtext('polygon((1 1, 1 0, 2 0, 1 1))')); st_touches(geomfromtext('polygon((0 0, 2 2, 0 4, 0 0))'), geomfromtext('polygon((1 1, 1 0, 2 0, 1 1))')) 1 SELECT ST_Equals(PolyFromText('POLYGON((67 13, 67 18, 67 18, 59 18, 59 13, 67 13) )'),PolyFromText('POLYGON((67 13, 67 18, 59 19, 59 13, 59 13, 67 13) )')) as result; result 0 SELECT ST_Equals(PolyFromText('POLYGON((67 13, 67 18, 67 18, 59 18, 59 13, 67 13) )'),PolyFromText('POLYGON((67 13, 67 18, 59 18, 59 13, 59 13, 67 13) )')) as result; result 1 SELECT ST_Equals(PointFromText('POINT (12 13)'),PointFromText('POINT (12 13)')) as result; result 1 # # BUG#11755628/47429: INTERSECTION FUNCTION CRASHED MYSQLD # BUG#11759650/51979: UNION/INTERSECTION OF POLYGONS CRASHES MYSQL # SELECT ASTEXT(ST_UNION(GEOMFROMTEXT('POLYGON((525000 183300,525400 183300,525400 18370, 525000 183700,525000 183300))'), geomfromtext('POLYGON((525298.67 183511.53,525296.57 183510.39,525296.42 183510.31,525289.11 183506.62,525283.17 183503.47,525280.98 183502.26,525278.63 183500.97,525278.39 183500.84,525276.79 183500,525260.7 183491.55,525263.95 183484.75,525265.58 183481.95,525278.97 183488.73,525276.5 183493.45,525275.5 183495.7,525280.35 183498.2,525282.3 183499.1,525282.2 183499.3,525283.55 183500,525301.75 183509.35,525304.45 183504.25,525307.85 183504.95,525304.5 183510.83,525302.81 183513.8,525298.67 183511.53),(525275.06 183489.89,525272.06 183488.37,525268.94 183494.51,525271.94 183496.03,525275.06 183489.89),(525263.26 183491.55,525266.15 183493.04,525269.88 183485.82,525266.99 183484.33,525263.26 183491.55))'))) st_u; st_u MULTIPOLYGON(((525400 18370,525000.9677614468 183300,525400 183300,525400 18370)),((525000 183300,525000 183700,525000.9677614468 183300,525000 183300)),((525265.58 183481.95,525263.95 183484.75,525260.7 183491.55,525276.79 183500,525278.39 183500.84,525278.63 183500.97,525280.98 183502.26,525283.17 183503.47,525289.11 183506.62,525296.42 183510.31,525296.57 183510.39,525298.67 183511.53,525302.81 183513.8,525304.5 183510.83,525307.85 183504.95,525304.45 183504.25,525301.75 183509.35,525283.55 183500,525282.2 183499.3,525282.3 183499.1,525280.35 183498.2,525275.5 183495.7,525276.5 183493.45,525278.97 183488.73,525265.58 183481.95),(525266.99 183484.33,525263.26 183491.55,525266.15 183493.04,525269.88 183485.82,525266.99 183484.33),(525272.06 183488.37,525268.94 183494.51,525271.94 183496.03,525275.06 183489.89,525272.06 183488.37))) SET @a=0x0000000001030000000200000005000000000000000000000000000000000000000000000000002440000000000000000000000000000024400000000000002440000000000000000000000000000024400000000000000000000000000000000000000000000000000000F03F000000000000F03F0000000000000040000000000000F03F00000000000000400000000000000040000000000000F03F0000000000000040000000000000F03F000000000000F03F; SELECT ASTEXT(TOUCHES(@a, GEOMFROMTEXT('point(0 0)'))) t; t NULL SELECT astext(ST_UNION ( PolyFromText('POLYGON(( 2 2 ,3 2,2 7,2 2),( 0 0,8 2,1 9,0 0))'), ExteriorRing( Envelope( MultiLineStringFromText('MULTILINESTRING((3 4,5 3),(3 0,0 5))'))))); astext(ST_UNION ( PolyFromText('POLYGON(( 2 2 ,3 2,2 7,2 2),( 0 0,8 2,1 9,0 0))'), ExteriorRing( Envelope( MultiLineStringFromText('MULTILINESTRING((3 4,5 3),(3 0,0 5))'))))) GEOMETRYCOLLECTION(POLYGON((0 0,1 9,8 2,0 0),(2 2,2 7,3 2,2 2)),LINESTRING(0.5555555555555556 5,0 5,0 0,5 0,5 1.25),LINESTRING(2 5,2.4 5)) SELECT astext(ST_BUFFER(LineStringFromText('LINESTRING(0 0,1 1)'),0)); astext(ST_BUFFER(LineStringFromText('LINESTRING(0 0,1 1)'),0)) LINESTRING(0 0,1 1) SELECT Round(ST_Area(ST_BUFFER(MultipointFromText('MULTIPOINT(7 7,3 7,7 2,7 4 ,7 7)'), 3)), 5); Round(ST_Area(ST_BUFFER(MultipointFromText('MULTIPOINT(7 7,3 7,7 2,7 4 ,7 7)'), 3)), 5) 78.68426 SELECT ST_INTERSECTION(NULL, NULL); ST_INTERSECTION(NULL, NULL) NULL SELECT ASTEXT(ST_INTERSECTION( MULTIPOLYGONFROMTEXT('MULTIPOLYGON(((2 2,2 8,8 8,8 2,2 2),(4 4,4 6,6 6,6 4,4 4)), ((0 5,3 5,3 0,0 0,0 1,2 1,2 2,0 2,0 5), (1 3,2 3,2 4,1 4,1 3)), ((2 2,5 2,4 4,2 8,2 2)))'), MULTIPOLYGONFROMTEXT('MULTIPOLYGON(((3 5,2 4,2 5,3 5)), ((2 2,9 2,0 2,2 6,2 2)), ((2 2,2 8,8 8,8 2,2 2), (4 4,4 6,6 6,6 4,4 4)), ((9 9,6 8,7 0,9 9)))'))); ASTEXT(ST_INTERSECTION( MULTIPOLYGONFROMTEXT('MULTIPOLYGON(((2 2,2 8,8 8,8 2,2 2),(4 4,4 6,6 6,6 4,4 4)), ((0 5,3 5,3 0,0 0,0 1,2 1,2 2,0 2,0 5), (1 3,2 3,2 4,1 4,1 3)), ((2 2,5 2,4 4,2 8,2 2)))'), MULTIPOLY POLYGON((0 2,1 4,1 3,2 3,2 4,1 4,1.5 5,2 5,2 8,8 8,8 2,0 2),(4 4,4 6,6 6,6 4,4 4)) SELECT ROUND(ST_LENGTH(ST_UNION( MULTILINESTRINGFROMTEXT('MULTILINESTRING((6 2,4 0,3 5,3 6,4 3,6 4,3 9,0 7,3 7,8 4,2 9,5 0), (8 2,1 3,9 0,4 4))'), MULTILINESTRINGFROMTEXT('MULTILINESTRING((2 5,6 7,9 7,5 2,1 6,3 6))'))), 7); ROUND(ST_LENGTH(ST_UNION( MULTILINESTRINGFROMTEXT('MULTILINESTRING((6 2,4 0,3 5,3 6,4 3,6 4,3 9,0 7,3 7,8 4,2 9,5 0), (8 2,1 3,9 0,4 4))'), MULTILINESTRINGFROMTEXT('MULTILINESTRING((2 5,6 7,9 7,5 2,1 6,3 6) 90.2783626 SELECT ST_NUMGEOMETRIES((ST_UNION(ST_UNION( MULTILINESTRINGFROMTEXT('MULTILINESTRING((2 0,4 2,0 2,1 5,0 3,7 0,8 5,5 8), (6 2,4 0,3 5,3 6,4 3,6 4,3 9,0 7,3 7,8 4,2 9,5 0), (7 8,3 1,0 9,6 0,4 8), (9 3,0 4,5 9,6 4), (8 2,1 3,9 0,4 4))'), MULTILINESTRINGFROMTEXT('MULTILINESTRING((6 0,9 3,2 5,3 6,3 2), (2 5,6 7,9 7,5 2,1 6,3 6))')), MULTIPOLYGONFROMTEXT('MULTIPOLYGON(((7 7,3 7,3 1,7 8,7 7)), ((3 5,2 4,2 5,3 5)), ((7 7,8 7,3 7,7 7,7 7)), ((0 5,3 5,3 4,1 4,1 3,3 3,3 0,0 0,0 5), (1 1,2 1,2 2,1 2,1 1)))')))); ST_NUMGEOMETRIES((ST_UNION(ST_UNION( MULTILINESTRINGFROMTEXT('MULTILINESTRING((2 0,4 2,0 2,1 5,0 3,7 0,8 5,5 8), (6 2,4 0,3 5,3 6,4 3,6 4,3 9,0 7,3 7,8 4,2 9,5 0), 192 SELECT Round(ST_AREA(ST_BUFFER( ST_UNION( POLYGONFROMTEXT('POLYGON((7 7, 7 7, 7 4, 7 7, 7 7))'), POLYGONFROMTEXT('POLYGON((7 7, 4 7, 2 9, 7 6, 7 7))')), 1)), 6); Round(ST_AREA(ST_BUFFER( ST_UNION( POLYGONFROMTEXT('POLYGON((7 7, 7 7, 7 4, 7 7, 7 7))'), POLYGONFROMTEXT('POLYGON((7 7, 4 7, 2 9, 7 6, 7 7))')), 1)), 6) 21.901344 SELECT AsText(ST_UNION(MultiPolygonFromText(' MULTIPOLYGON(((2 2, 2 8, 8 8, 8 2, 2 2), (4 4, 4 6, 6 6, 6 4, 4 4)), ((0 0, 8 3, 7 4, 0 0)), ((2 2, 2 8, 8 8, 8 2, 2 2), (4 4, 4 6, 6 6, 6 4, 4 4)))'), MultiPolygonFromText(' MULTIPOLYGON(((0 0, 1 9, 4 6, 0 0)), ((0 5, 3 5, 3 4, 1 4, 1 3, 3 3, 3 0, 0 0, 0 5), (1 1, 2 1, 2 2, 1 2, 1 1)), ((7 7, 4 7, 6 3, 7 2, 7 7)), ((0 5, 3 5, 3 4, 1 4, 1 3, 3 3, 3 0, 0 0, 0 5), (1 1, 2 1, 2 2, 1 2, 1 1))) '))); AsText(ST_UNION(MultiPolygonFromText(' MULTIPOLYGON(((2 2, 2 8, 8 8, 8 2, 2 2), (4 4, 4 6, 6 6, 6 4, 4 4)), ((0 0, 8 3, 7 4, 0 0)), ((2 2, 2 8, 8 8, 8 2, 2 2), (4 4, 4 6, 6 6, 6 4, 4 4)))'), MultiPolygonFr POLYGON((0 0,0 5,0.5555555555555556 5,1 9,2 8,8 8,8 2,5.333333333333334 2,3 1.125,3 0,0 0),(1 1,1 1.5,1.3333333333333333 2,2 2,2 1.1428571428571428,1.75 1,1 1),(3 1.7142857142857142,3 2,3.5 2,3 1.7142857142857142),(4 4,4 6,4.5 6,5.5 4,4 4)) SELECT AsText(ST_SYMDIFFERENCE( MultiLineStringFromText('MULTILINESTRING((7 7, 1 7, 8 5, 7 8, 7 7), (6 3, 3 4, 1 1, 9 9, 9 0, 8 4, 9 9))'), Envelope(GeometryFromText('MULTIPOINT(7 9, 0 0, 3 7, 1 6, 0 0)')))); AsText(ST_SYMDIFFERENCE( MultiLineStringFromText('MULTILINESTRING((7 7, 1 7, 8 5, 7 8, 7 7), (6 3, 3 4, 1 1, 9 9, 9 0, 8 4, 9 9))'), Envelope(GeometryFromText('MULTIPOINT(7 9, 0 0, 3 7, 1 6, 0 0)')))) GEOMETRYCOLLECTION(POLYGON((0 0,0 9,7 9,7 0,0 0)),LINESTRING(9 9,8 4,9 0,9 9),LINESTRING(7 5.285714285714286,8 5,7.25 7.25),LINESTRING(7 7,7.25 7.25),LINESTRING(7.25 7.25,7 8),LINESTRING(7.25 7.25,9 9)) SELECT AsText(ST_UNION( MultiPolygonFromText('MULTIPOLYGON(((9 9, 7 9, 1 1, 9 9)), ((2 2, 1 2, 3 3, 2 2, 2 2)), ((0 0, 7 5, 9 6, 0 0)), ((7 7, 5 7, 1 5, 7 1, 7 7)))'), MultiPolygonFromText('MULTIPOLYGON(((2 2, 2 2, 1 5, 2 7, 2 2)), ((0 5, 3 5, 3 0, 0 0, 0 5), (1 1, 2 1, 2 4, 1 4, 1 1)))'))); AsText(ST_UNION( MultiPolygonFromText('MULTIPOLYGON(((9 9, 7 9, 1 1, 9 9)), ((2 2, 1 2, 3 3, 2 2, 2 2)), ((0 0, 7 5, 9 6, 0 0)), POLYGON((0 0,0 5,1 5,2 7,2 5.5,5 7,5.5 7,7 9,9 9,7 7,7 5,9 6,7 4.666666666666667,7 1,4.25 2.833333333333333,3 2,3 0,0 0),(1 1,1 4,1.3333333333333333 4,1.8571428571428572 2.4285714285714284,1 2,1.75 2,1 1,2 2,2 1.4285714285714284,1.4 1,1 1),(1.5 1,2 1.3333333333333333,2 1,1.5 1),(3 2.142857142857143,3 3,3.4 3.4,4.1034482758620685 2.9310344827586206,3 2.142857142857143)) SELECT AsText( ST_INTERSECTION( LinestringFromText('LINESTRING( 3 5, 2 5, 2 4, 3 4, 3 5 ) ') , LinestringFromText('LINESTRING( 3 5, 2 4, 2 5, 3 5 ) ') )); AsText( ST_INTERSECTION( LinestringFromText('LINESTRING( 3 5, 2 5, 2 4, 3 4, 3 5 ) ') , LinestringFromText('LINESTRING( 3 5, 2 4, 2 5, 3 5 ) ') )) LINESTRING(2 4,2 5,3 5) SELECT AsText( ST_UNION( PolygonFromText(' POLYGON( ( 2 2 , 3 2 , 7 5 , 2 0 , 2 2 ) ) ') , PolygonFromText(' POLYGON( ( 2 2 , 3 2 , 3 3 , 2 5 , 2 2 ) ) ') ) ); AsText( ST_UNION( PolygonFromText(' POLYGON( ( 2 2 , 3 2 , 7 5 , 2 0 , 2 2 ) ) ') , PolygonFromText(' POLYGON( ( 2 2 , 3 2 , 3 3 , 2 5 , 2 2 ) ) ') ) ) POLYGON((2 0,2 5,3 3,3 2,7 5,2 0)) SELECT AsText(ST_INTERSECTION(LinestringFromText('LINESTRING(1 1, 2 2)'), GeometryFromText('LINESTRING(3 3, 4 4)'))); AsText(ST_INTERSECTION(LinestringFromText('LINESTRING(1 1, 2 2)'), GeometryFromText('LINESTRING(3 3, 4 4)'))) GEOMETRYCOLLECTION EMPTY SELECT AsText(ST_UNION(GEOMETRYFROMTEXT('POINT(8 1)') ,MULTILINESTRINGFROMTEXT('MULTILINESTRING((3 5, 2 5, 2 4, 3 4, 3 5))'))); AsText(ST_UNION(GEOMETRYFROMTEXT('POINT(8 1)') ,MULTILINESTRINGFROMTEXT('MULTILINESTRING((3 5, 2 5, 2 4, 3 4, 3 5))'))) GEOMETRYCOLLECTION(POINT(8 1),LINESTRING(2 4,2 5,3 5,3 4,2 4)) SELECT ST_DISTANCE(POINTFROMTEXT('POINT(7 1)'),MULTILINESTRINGFROMTEXT('MULTILINESTRING( (4 7,9 7,6 1,3 4,1 1), (3 5, 2 5, 2 4, 3 4, 3 5))')); ST_DISTANCE(POINTFROMTEXT('POINT(7 1)'),MULTILINESTRINGFROMTEXT('MULTILINESTRING( (4 7,9 7,6 1,3 4,1 1), (3 5, 2 5, 2 4, 3 4, 3 5))')) 1 SELECT AsText(ST_UNION(POLYGONFROMTEXT('POLYGON((12 9, 3 6, 3 0, 12 9))'), POLYGONFROMTEXT('POLYGON((2 2, 7 2, 4 2, 2 0, 2 2))'))); AsText(ST_UNION(POLYGONFROMTEXT('POLYGON((12 9, 3 6, 3 0, 12 9))'), POLYGONFROMTEXT('POLYGON((2 2, 7 2, 4 2, 2 0, 2 2))'))) GEOMETRYCOLLECTION(POLYGON((2 0,2 2,3 2,3 6,12 9,3 0,3 1,2 0)),LINESTRING(5 2,7 2)) SELECT ST_NUMPOINTS(ST_EXTERIORRING(ST_BUFFER(ST_UNION( MULTILINESTRINGFROMTEXT('MULTILINESTRING((3 4, 2 5, 7 6, 1 8),(0 0 ,1 6 ,0 1, 8 9, 2 4, 6 1, 3 5, 4 8), (9 3, 5 4, 1 8, 4 2, 5 8, 3 0))' ) , MULTILINESTRINGFROMTEXT('MULTILINESTRING((3 4, 3 1, 2 7, 4 2, 6 2, 1 5))') ), 16))); ST_NUMPOINTS(ST_EXTERIORRING(ST_BUFFER(ST_UNION( MULTILINESTRINGFROMTEXT('MULTILINESTRING((3 4, 2 5, 7 6, 1 8),(0 0 ,1 6 ,0 1, 8 9, 2 4, 6 1, 3 5, 4 8), (9 3, 5 4, 1 8, 4 2, 5 8, 3 0))' ) , MULTILINESTRINGFROMTEXT('MULTILINESTRING((3 4, 3 1, 2 7, 4 2, 6 2 278 SELECT ST_NUMGEOMETRIES(ST_DIFFERENCE ( ST_UNION ( MULTILINESTRINGFROMTEXT( ' MULTILINESTRING( ( 2 4 , 5 0 , 2 9 , 6 2 , 0 2 ) , ( 4 3 , 5 6 , 9 4 , 0 7 , 7 2 , 2 0 , 8 2 ) , ( 5 0 , 1 5 , 3 7 , 7 7 ) , ( 2 3 , 9 5 , 2 0 , 8 1 ) , ( 0 9 , 9 3 , 2 8 , 8 1 , 9 4 ) ) ' ), ST_UNION ( MULTIPOLYGONFROMTEXT( ' MULTIPOLYGON( ( ( 2 2 , 7 2 , 6 2 , 2 6 , 2 2 ) ) , ( (3 5, 2 5, 2 4, 3 4, 3 5) ) ) ' ) , ENVELOPE( MULTIPOLYGONFROMTEXT( ' MULTIPOLYGON( ( (3 5, 2 5, 2 4, 3 4, 3 5) ) ) ' ) ) ) ), MULTILINESTRINGFROMTEXT( ' MULTILINESTRING( ( 2 9 , 1 3 , 7 3 , 8 5 ) , ( 5 0 , 8 1 , 2 0 , 7 4 , 1 0 ) , ( 9 2 , 5 2 , 6 5 , 8 8 , 0 2 ) , ( 0 8 , 3 9 , 4 0 , 1 0 ) , ( 0 0 , 7 6 , 8 3 , 0 0 ) ) ' ) )); ST_NUMGEOMETRIES(ST_DIFFERENCE ( ST_UNION ( MULTILINESTRINGFROMTEXT( ' MULTILINESTRING( ( 2 4 , 5 0 , 2 9 , 6 2 , 0 2 ) , ( 4 3 , 5 6 , 9 4 , 0 7 , 7 2 , 2 0 , 8 2 ) , ( 5 0 , 1 5 , 3 7 , 7 7 ) , ( 2 3 , 9 5 , 2 0 , 8 1 ) , ( 0 9 , 9 3 , 2 8 , 8 1 , 9 4 ) 125 SELECT ASTEXT(ST_DIFFERENCE ( POLYGONFROMTEXT( ' POLYGON( ( 2 2 , 2 8 , 8 8 , 8 2 , 2 2 ) , ( 4 4 , 4 6 , 6 6 , 6 4 , 4 4 ) ) ' ) , ST_UNION ( MULTILINESTRINGFROMTEXT( ' MULTILINESTRING( (3 5, 2 5, 2 4, 3 4, 3 5) ) ' ) , ST_SYMDIFFERENCE ( MULTILINESTRINGFROMTEXT( ' MULTILINESTRING( ( 3 8 , 0 8 , 6 6 , 6 1 , 0 5 , 6 7 , 3 7 ) , ( 5 8 , 7 7 , 9 0 , 8 7 ) , ( 1 5 , 1 8 , 2 3 , 3 9 ) , ( 1 3 , 9 7 , 5 5 , 0 8 , 6 9 ) , ( 3 6 , 6 9 , 8 7 , 0 2 , 4 6 , 9 5 ) ) ' ) , ST_UNION ( MULTILINESTRINGFROMTEXT( ' MULTILINESTRING( ( 9 4 , 2 0 , 2 2 , 7 2 , 6 2 ) , ( 5 2 , 8 2 , 4 8 , 3 4 ) , ( 1 0 , 1 4 , 2 7 , 7 0 , 1 5 ) , ( 2 8 , 4 4 , 5 0 , 7 0 , 4 0 ) ) ' ) , GEOMETRYFROMTEXT( ' MULTILINESTRING( ( 3 7 , 7 3 , 5 8 , 4 8 ) , ( 3 2 , 5 0 , 9 3 , 4 4 ) , ( 6 0 , 4 2 , 7 8 , 1 3 ) ) ' ) ) ) ) )); ASTEXT(ST_DIFFERENCE ( POLYGONFROMTEXT( ' POLYGON( ( 2 2 , 2 8 , 8 8 , 8 2 , 2 2 ) , ( 4 4 , 4 6 , 6 6 , 6 4 , 4 4 ) ) ' ) , ST_UNION ( MULTILINESTRINGFROMTEXT( ' MULTILINESTRING( (3 5, 2 5, 2 4, 3 4, 3 5) ) ' ) , ST_SYMDIFFERENCE ( MULTILINESTRINGFROMTEX POLYGON((2 2,2 8,8 8,8 2,2 2),(4 4,4 6,6 6,6 4,4 4)) SELECT ST_NUMGEOMETRIES(ST_UNION ( MULTILINESTRINGFROMTEXT( ' MULTILINESTRING( ( 0 8 , 1 9 , 5 7 , 2 8 , 5 8 , 6 7 ) , ( 4 5 , 8 4 , 0 3 , 5 1 ) , ( 6 8 , 2 7 , 1 6 , 9 9 , 7 2 ) , ( 9 5 , 2 8 , 1 2 , 9 6 , 2 0 ) ) ' ) , MULTIPOLYGONFROMTEXT( ' MULTIPOLYGON( ( ( 7 7 , 2 7, 6 8, 7 1 , 7 7 ) ) ) ' ) )); ST_NUMGEOMETRIES(ST_UNION ( MULTILINESTRINGFROMTEXT( ' MULTILINESTRING( ( 0 8 , 1 9 , 5 7 , 2 8 , 5 8 , 6 7 ) , ( 4 5 , 8 4 , 0 3 , 5 1 ) , ( 6 8 , 2 7 , 1 6 , 9 9 , 7 2 ) , ( 9 5 , 2 8 , 1 2 , 9 6 , 2 0 ) ) ' ) , MULTIPOLYGONFROMTEXT( ' MULTIPOLYGON( ( ( 50 SELECT ST_BUFFER ( LINESTRINGFROMTEXT( ' LINESTRING( 5 4 , 3 8 , 2 6 , 5 5 , 7 9 ) ' ) , ST_DISTANCE ( MULTIPOLYGONFROMTEXT( ' MULTIPOLYGON( ( (3 5, 2 4, 2 5, 3 5) ) , ( (3 5, 2 5, 2 4, 3 4, 3 5) ) , ( ( 0 0 , 8 3 , 9 5 , 0 0 ) ) ) ' ) , ST_DIFFERENCE ( MULTIPOLYGONFROMTEXT( ' MULTIPOLYGON( ( (3 5, 2 5, 2 4, 3 4, 3 5) ) ) ' ) , MULTIPOLYGONFROMTEXT( ' MULTIPOLYGON( ( ( 2 2 , 2 8 , 8 8 , 8 2 , 2 2 ) , ( 4 4 , 4 6 , 6 6 , 6 4 , 4 4 ) ) , ( ( 0 0 , 3 8 , 9 4 , 0 0 ) ) ) ' ) ) ) ) ; ST_BUFFER ( LINESTRINGFROMTEXT( ' LINESTRING( 5 4 , 3 8 , 2 6 , 5 5 , 7 9 ) ' ) , ST_DISTANCE ( MULTIPOLYGONFROMTEXT( ' MULTIPOLYGON( ( (3 5, 2 4, 2 5, 3 5) ) , ( (3 5, 2 5, 2 4, 3 4, 3 5) ) , ( ( 0 0 , 8 3 , 9 5 , 0 0 ) ) ) ' ) , ST_DIFFERENCE ( MULTIPOL NULL SELECT ST_DISTANCE ( ST_DIFFERENCE ( MULTIPOLYGONFROMTEXT( ' MULTIPOLYGON( ( (3 5, 2 5, 2 4, 3 4, 3 5) ) ) ' ) , MULTIPOLYGONFROMTEXT( ' MULTIPOLYGON( ( ( 2 2 , 2 8 , 8 8 , 8 2 , 2 2 ) , ( 4 4 , 4 6 , 6 6 , 6 4 , 4 4 ) ) , ( ( 0 0 , 3 8 , 9 4 , 0 0 ) ) ) ' ) ), MULTIPOLYGONFROMTEXT( ' MULTIPOLYGON( ( (3 5, 2 4, 2 5, 3 5) ) , ( (3 5, 2 5, 2 4, 3 4, 3 5) ) , ( ( 0 0 , 8 3 , 9 5 , 0 0 ) ) ) ' ) ) ; ST_DISTANCE ( ST_DIFFERENCE ( MULTIPOLYGONFROMTEXT( ' MULTIPOLYGON( ( (3 5, 2 5, 2 4, 3 4, 3 5) ) ) ' ) , MULTIPOLYGONFROMTEXT( ' MULTIPOLYGON( ( ( 2 2 , 2 8 , 8 8 , 8 2 , 2 2 ) , ( 4 4 , NULL SELECT ASTEXT(ST_INTERSECTION( GEOMETRYFROMTEXT('GEOMETRYCOLLECTION(LINESTRING(7 7,5.33333333333333 7),LINESTRING(5.33333333333333 7,0 7,5 8,5.33333333333333 7),LINESTRING(5.33333333333333 7,7 2,7 7),POLYGON((0 5,3 5,3 2,1 2,1 1,3 1,3 0,0 0,0 3,2 3,2 4,0 4,0 5)))'), geomETRYFROMTEXT(' MULTILINESTRING( ( 5 1 , 3 7 , 6 1 , 7 0 ) , ( 1 6 , 8 5 , 7 5 , 5 6 ) )') )); ASTEXT(ST_INTERSECTION( GEOMETRYFROMTEXT('GEOMETRYCOLLECTION(LINESTRING(7 7,5.33333333333333 7),LINESTRING(5.33333333333333 7,0 7,5 8,5.33333333333333 7),LINESTRING(5.33333333333333 7,7 2,7 7),POLYGON((0 5,3 5,3 2,1 2,1 1,3 1,3 0,0 0,0 3,2 3,2 4,0 4,0 5)) MULTIPOINT(7 5,7 5.142857142857142,5.899999999999998 5.300000000000001,5.799999999999997 5.600000000000001,3 7) SELECT ST_CROSSES( GEOMETRYFROMTEXT(' POLYGON( (3 5, 2 4, 2 5, 3 5) ) ') , POLYGONFROMTEXT(' POLYGON((2 4,3 4,3 5,2 5,2 4)) ')); ST_CROSSES( GEOMETRYFROMTEXT(' POLYGON( (3 5, 2 4, 2 5, 3 5) ) ') , POLYGONFROMTEXT(' POLYGON((2 4,3 4,3 5,2 5,2 4)) ')) 0 SELECT ST_WITHIN( POLYGONFROMTEXT(' POLYGON( (0 5, 3 5, 3 4, 2 0 , 1 0, 2 4 , 0 4, 0 5) ) ') , POLYGONFROMTEXT(' POLYGON( (0 5, 3 5, 3 4, 1 4 , 1 3 , 3 3 , 3 0 , 0 0 , 0 5), ( 1 1 , 2 1 , 2 2 , 1 2 , 1 1 ) ) ') ); ST_WITHIN( POLYGONFROMTEXT(' POLYGON( (0 5, 3 5, 3 4, 2 0 , 1 0, 2 4 , 0 4, 0 5) ) ') , POLYGONFROMTEXT(' POLYGON( (0 5, 3 5, 3 4, 1 4 , 1 3 , 3 3 , 3 0 , 0 0 , 0 5), ( 1 1 , 2 1 , 2 2 , 1 2 , 1 1 ) ) ') ) 0 SELECT ST_WITHIN( POINTFROMTEXT(' POINT(1 2 ) ') , MULTIPOLYGONFROMTEXT(' MULTIPOLYGON( ( (0 5, 3 5, 3 0, 0 0, 0 5), ( 1 1 , 2 1 , 2 4, 1 4, 1 1 ) ) ) ')); ST_WITHIN( POINTFROMTEXT(' POINT(1 2 ) ') , MULTIPOLYGONFROMTEXT(' MULTIPOLYGON( ( (0 5, 3 5, 3 0, 0 0, 0 5), ( 1 1 , 2 1 , 2 4, 1 4, 1 1 ) ) ) ')) 1 select ST_ASTEXT(envelope(ST_GEOMCOLLFROMTEXT('GEOMETRYCOLLECTION EMPTY'))); ST_ASTEXT(envelope(ST_GEOMCOLLFROMTEXT('GEOMETRYCOLLECTION EMPTY'))) GEOMETRYCOLLECTION EMPTY SELECT ST_EQUALS( GEOMETRYFROMTEXT(' MULTILINESTRING( (3 5, 2 5, 2 4, 3 4, 3 5) ) ') , GEOMETRYFROMTEXT(' POLYGON( (3 5, 2 5, 2 4, 3 4, 3 5) ) ') ); ST_EQUALS( GEOMETRYFROMTEXT(' MULTILINESTRING( (3 5, 2 5, 2 4, 3 4, 3 5) ) ') , GEOMETRYFROMTEXT(' POLYGON( (3 5, 2 5, 2 4, 3 4, 3 5) ) ') ) 0 SELECT ST_TOUCHES( GEOMETRYFROMTEXT(' LINESTRING( 1 1 , 1 4 , 5 0 , 8 3 ) ') , POLYGONFROMTEXT(' POLYGON( ( 2 2 , 2 8 , 8 8 , 8 2 , 2 2 ) , ( 4 4 , 4 6 , 6 6 , 6 4 , 4 4 ) ) ') ); ST_TOUCHES( GEOMETRYFROMTEXT(' LINESTRING( 1 1 , 1 4 , 5 0 , 8 3 ) ') , POLYGONFROMTEXT(' POLYGON( ( 2 2 , 2 8 , 8 8 , 8 2 , 2 2 ) , ( 4 4 , 4 6 , 6 6 , 6 4 , 4 4 ) ) ') ) 0 SELECT ST_EQUALS( MULTIPOINTFROMTEXT(' MULTIPOINT( 5 1 , 6 9 , 1 4 , 4 0 ) ') , MULTIPOINTFROMTEXT(' MULTIPOINT( 5 8 , 5 2 , 1 8 , 3 0 , 3 0 , 7 8 ) ') ); ST_EQUALS( MULTIPOINTFROMTEXT(' MULTIPOINT( 5 1 , 6 9 , 1 4 , 4 0 ) ') , MULTIPOINTFROMTEXT(' MULTIPOINT( 5 8 , 5 2 , 1 8 , 3 0 , 3 0 , 7 8 ) ') ) 0 SELECT ST_EQUALS( MULTIPOINTFROMTEXT(' MULTIPOINT( 5 1 , 6 9 , 1 4 , 4 0 ) ') , MULTIPOINTFROMTEXT('MULTIPOINT( 4 0 , 6 9 , 5 1, 1 4 )') ); ST_EQUALS( MULTIPOINTFROMTEXT(' MULTIPOINT( 5 1 , 6 9 , 1 4 , 4 0 ) ') , MULTIPOINTFROMTEXT('MULTIPOINT( 4 0 , 6 9 , 5 1, 1 4 )') ) 1 SELECT ST_WITHIN( MULTIPOINTFROMTEXT(' MULTIPOINT( 2 9 , 2 9 , 4 9 , 9 1 ) ') , POLYGONFROMTEXT(' POLYGON( ( 2 2 , 2 8 , 8 8 , 8 2 , 2 2 ) , ( 4 4 , 4 6 , 6 6 , 6 4 , 4 4 ) ) ')); ST_WITHIN( MULTIPOINTFROMTEXT(' MULTIPOINT( 2 9 , 2 9 , 4 9 , 9 1 ) ') , POLYGONFROMTEXT(' POLYGON( ( 2 2 , 2 8 , 8 8 , 8 2 , 2 2 ) , ( 4 4 , 4 6 , 6 6 , 6 4 , 4 4 ) ) ')) 0 SELECT ST_INTERSECTS( GeomFromText('MULTILINESTRING( ( 4030 3045 , 3149 2461 , 3004 3831 , 3775 2976 ) )') , GeomFromText('LINESTRING(3058.41 3187.91,3081.52 3153.19,3042.99 3127.57,3019.89 3162.29,3039.07 3175.05,3039.07 3175.05,3058.41 3187.91,3081.52 3153.19,3042.99 3127.57,3019.89 3162.29)') ); ST_INTERSECTS( GeomFromText('MULTILINESTRING( ( 4030 3045 , 3149 2461 , 3004 3831 , 3775 2976 ) )') , GeomFromText('LINESTRING(3058.41 3187.91,3081.52 3153.19,3042.99 3127.57,3019.89 3162.29,3039.07 3175.05,3039.07 3175.05,3058.41 3187.91,3081.52 3153.19, 1 SELECT ST_NUMPOINTS(ST_EXTERIORRING(ST_BUFFER( POLYGONFROMTEXT( 'POLYGON( ( 0.0 -3.0, -2.910427500435995 0.727606875108998, -0.910427500435995 8.727606875108998, 7.664100588675687 1.503849116986468, 1.664100588675687 -2.496150883013531, 0.0 -3.0 ))' ), 3 ))); ST_NUMPOINTS(ST_EXTERIORRING(ST_BUFFER( POLYGONFROMTEXT( 'POLYGON( ( 0.0 -3.0, -2.910427500435995 0.727606875108998, -0.910427500435995 8.727606875108998, 7.664100588675687 1.503849116986468, 1.664100588675687 -2.496150883013531, 0.0 -3.0 ))' ), 136 select astext(buffer(st_linestringfromwkb(linestring(point(-1,1), point(-1,-2))),-1)); astext(buffer(st_linestringfromwkb(linestring(point(-1,1), point(-1,-2))),-1)) GEOMETRYCOLLECTION EMPTY select ST_Touches(ST_LineFromText('LINESTRING(0 0,5 5)'),ST_PointFromText('POINT(0 0)')); ST_Touches(ST_LineFromText('LINESTRING(0 0,5 5)'),ST_PointFromText('POINT(0 0)')) 1 select ST_Touches(ST_PolygonFromText('POLYGON((0 0,0 5,5 5,5 0,0 0))'),ST_PointFromText('POINT(0 0)')); ST_Touches(ST_PolygonFromText('POLYGON((0 0,0 5,5 5,5 0,0 0))'),ST_PointFromText('POINT(0 0)')) 1 select ST_Touches(ST_PointFromText('POINT(0 0)'),ST_PointFromText('POINT(0 0)')); ST_Touches(ST_PointFromText('POINT(0 0)'),ST_PointFromText('POINT(0 0)')) 0 SELECT ST_RELATE( ST_DIFFERENCE( GEOMETRYFROMTEXT(' MULTILINESTRING( ( 12841 36140, 8005 31007, 26555 31075, 52765 41191, 28978 6548, 45720 32057, 53345 3221 ), ( 8304 59107, 25233 31592, 40502 25303, 8205 42940 ), ( 7829 7305, 58841 56759, 64115 8512, 37562 54145, 2210 14701 ), ( 20379 2805, 40807 27770, 28147 14883, 26439 29383, 55663 5086 ), ( 35944 64702, 14433 23728, 49317 26241, 790 16941 ) ) '), GEOMETRYFROMTEXT('POINT(46061 13545)') ), GEOMETRYFROMTEXT('POINT(4599 60359)'), 'F*FFFF**F' ) as relate_res; relate_res 0 prepare s from 'do st_convexhull(st_aswkb(multipoint(point(-11702,15179),point(-5031,27960),point(-30557,11158),point(-27804,30314))))'; execute s; execute s; deallocate prepare s; DROP TABLE IF EXISTS p1; CREATE PROCEDURE p1(dist DOUBLE, geom TEXT) BEGIN DECLARE g GEOMETRY; SET g=GeomFromText(geom); SELECT geom AS `-----`; SELECT dist, GeometryType(@buf:=ST_Buffer(g, dist)) AS `buffer`, ROUND(ST_AREA(@buf),2) AS buf_area; END| # # Testing ST_BUFFER with positive distance # ----- POINT(0 0)) dist buffer buf_area 1 POLYGON 3.14 ----- LineString(0 1, 1 1)) dist buffer buf_area 1 POLYGON 5.14 ----- LineString(9 9,8 1,1 5,0 0) dist buffer buf_area 1 POLYGON 44.63 ----- Polygon((2 2,2 8,8 8,8 2,2 2)) dist buffer buf_area 1 POLYGON 63.14 ----- Polygon((0 0,0 8,8 8,8 0,0 0),(2 2,6 2,6 6,2 6,2 2)) dist buffer buf_area 1 POLYGON 95.14 ----- Polygon((0 0, 0 8, 8 8, 8 10, -10 10, -10 0, 0 0)) dist buffer buf_area 1 POLYGON 174.93 ----- MultiPoint(9 9,8 1,1 5) dist buffer buf_area 1 MULTIPOLYGON 9.42 ----- MultiLineString((0 0,2 2)) dist buffer buf_area 1 POLYGON 8.80 ----- MultiLineString((0 0,2 2,0 4)) dist buffer buf_area 1 POLYGON 14.24 ----- MultiLineString((0 0,2 2),(0 2,2 0)) dist buffer buf_area 1 POLYGON 13.59 ----- MultiLineString((2 2,2 8,-2 8),(-6 -6, 6 6),(10 10, 14 14)) dist buffer buf_area 1 MULTIPOLYGON 70.06 ----- MultiPolygon(((2 2,2 8,8 8,8 2,2 2)), ((9 9,8 1,1 5,9 9))) dist buffer buf_area 1 POLYGON 73.18 ----- MultiPolygon(((2 2,2 8,8 8,8 2,2 2), (4 4,4 6,6 6,6 4,4 4)),((9 9,8 1,1 5,9 9))) dist buffer buf_area 1 POLYGON 73.18 ----- GeometryCollection(Point(0 0)) dist buffer buf_area 1 POLYGON 3.14 ----- GeometryCollection(LineString(0 0, 2 2))) dist buffer buf_area 1 POLYGON 8.80 ----- GeometryCollection(Polygon((2 2,2 8,8 8,8 2,2 2)))) dist buffer buf_area 1 POLYGON 63.14 ----- GeometryCollection(MultiPoint(9 9,8 1,1 5)) dist buffer buf_area 1 MULTIPOLYGON 9.42 ----- GeometryCollection(MultiLineString((0 0,0 1),(3 0,3 1))) dist buffer buf_area 1 MULTIPOLYGON 10.28 ----- GeometryCollection(MultiPolygon(((0 0, 3 0, 3 3, 0 3, 0 0)),((6 6,6 9,9 9,9 6,6 6)))) dist buffer buf_area 1 MULTIPOLYGON 48.28 ----- GeometryCollection(Point(9 9),LineString(1 5,0 0),Polygon((2 2,2 8,8 8,8 2,2 2))) dist buffer buf_area 1 POLYGON 75.92 # # Testing ST_BUFFER with zero distance # ----- POINT(0 0)) dist buffer buf_area 0 POINT 0.00 ----- LineString(0 1, 1 1)) dist buffer buf_area 0 LINESTRING 0.00 ----- LineString(9 9,8 1,1 5,0 0) dist buffer buf_area 0 LINESTRING 0.00 ----- Polygon((2 2,2 8,8 8,8 2,2 2)) dist buffer buf_area 0 POLYGON 36.00 ----- Polygon((0 0,0 8,8 8,8 0,0 0),(2 2,6 2,6 6,2 6,2 2)) dist buffer buf_area 0 POLYGON 48.00 ----- Polygon((0 0, 0 8, 8 8, 8 10, -10 10, -10 0, 0 0)) dist buffer buf_area 0 POLYGON 116.00 ----- MultiPoint(9 9,8 1,1 5) dist buffer buf_area 0 MULTIPOINT NULL ----- MultiLineString((0 0,2 2)) dist buffer buf_area 0 MULTILINESTRING NULL ----- MultiLineString((0 0,2 2,0 4)) dist buffer buf_area 0 MULTILINESTRING NULL ----- MultiLineString((0 0,2 2),(0 2,2 0)) dist buffer buf_area 0 MULTILINESTRING NULL ----- MultiLineString((2 2,2 8,-2 8),(-6 -6, 6 6),(10 10, 14 14)) dist buffer buf_area 0 MULTILINESTRING NULL ----- MultiPolygon(((2 2,2 8,8 8,8 2,2 2)), ((9 9,8 1,1 5,9 9))) dist buffer buf_area 0 MULTIPOLYGON 66.00 ----- MultiPolygon(((2 2,2 8,8 8,8 2,2 2), (4 4,4 6,6 6,6 4,4 4)),((9 9,8 1,1 5,9 9))) dist buffer buf_area 0 MULTIPOLYGON 62.00 ----- GeometryCollection(Point(0 0)) dist buffer buf_area 0 GEOMETRYCOLLECTION 0.00 ----- GeometryCollection(LineString(0 0, 2 2))) dist buffer buf_area 0 GEOMETRYCOLLECTION 0.00 ----- GeometryCollection(Polygon((2 2,2 8,8 8,8 2,2 2)))) dist buffer buf_area 0 GEOMETRYCOLLECTION 36.00 ----- GeometryCollection(MultiPoint(9 9,8 1,1 5)) dist buffer buf_area 0 GEOMETRYCOLLECTION NULL ----- GeometryCollection(MultiLineString((0 0,0 1),(3 0,3 1))) dist buffer buf_area 0 GEOMETRYCOLLECTION NULL ----- GeometryCollection(MultiPolygon(((0 0, 3 0, 3 3, 0 3, 0 0)),((6 6,6 9,9 9,9 6,6 6)))) dist buffer buf_area 0 GEOMETRYCOLLECTION 18.00 ----- GeometryCollection(Point(9 9),LineString(1 5,0 0),Polygon((2 2,2 8,8 8,8 2,2 2))) dist buffer buf_area 0 GEOMETRYCOLLECTION 36.00 # # Testing ST_BUFFER with negative distance # ----- POINT(0 0)) dist buffer buf_area -1 GEOMETRYCOLLECTION 0.00 ----- LineString(0 1, 1 1)) dist buffer buf_area -1 GEOMETRYCOLLECTION 0.00 ----- LineString(9 9,8 1,1 5,0 0) dist buffer buf_area -1 GEOMETRYCOLLECTION 0.00 ----- Polygon((2 2,2 8,8 8,8 2,2 2)) dist buffer buf_area -1 POLYGON 16.00 ----- MultiPoint(9 9,8 1,1 5) dist buffer buf_area -1 GEOMETRYCOLLECTION 0.00 ----- MultiLineString((0 0,2 2)) dist buffer buf_area -1 GEOMETRYCOLLECTION 0.00 ----- MultiLineString((0 0,2 2,0 4)) dist buffer buf_area -1 GEOMETRYCOLLECTION 0.00 ----- MultiLineString((0 0,2 2),(0 2,2 0)) dist buffer buf_area -1 GEOMETRYCOLLECTION 0.00 ----- MultiLineString((2 2,2 8,-2 8),(-6 -6, 6 6),(10 10, 14 14)) dist buffer buf_area -1 GEOMETRYCOLLECTION 0.00 ----- GeometryCollection(Point(0 0)) dist buffer buf_area -1 GEOMETRYCOLLECTION 0.00 ----- GeometryCollection(LineString(0 0, 2 2))) dist buffer buf_area -1 GEOMETRYCOLLECTION 0.00 ----- GeometryCollection(Polygon((2 2,2 8,8 8,8 2,2 2)))) dist buffer buf_area -1 POLYGON 16.00 ----- GeometryCollection(MultiPoint(9 9,8 1,1 5)) dist buffer buf_area -1 GEOMETRYCOLLECTION 0.00 ----- GeometryCollection(MultiLineString((0 0,0 1),(3 0,3 1))) dist buffer buf_area -1 GEOMETRYCOLLECTION 0.00 ----- GeometryCollection(Point(9 9),LineString(1 5,0 0),Polygon((2 2,2 8,8 8,8 2,2 2))) dist buffer buf_area -1 POLYGON 16.00 SELECT ST_CONTAINS( GeomFromText('MULTIPOLYGON(((0 0, 0 5, 5 5, 5 0, 0 0)),((6 6, 6 11, 11 11, 11 6, 6 6)))'), GeomFromText('POINT(5 10)')); ST_CONTAINS( GeomFromText('MULTIPOLYGON(((0 0, 0 5, 5 5, 5 0, 0 0)),((6 6, 6 11, 11 11, 11 6, 6 6)))'), GeomFromText('POINT(5 10)')) 0 SELECT AsText(ST_UNION( GeomFromText('MULTIPOLYGON(((0 0, 0 5, 5 5, 5 0, 0 0)),((6 6, 6 11, 11 11, 11 6, 6 6)))'), GeomFromText('POINT(5 10)'))); AsText(ST_UNION( GeomFromText('MULTIPOLYGON(((0 0, 0 5, 5 5, 5 0, 0 0)),((6 6, 6 11, 11 11, 11 6, 6 6)))'), GeomFromText('POINT(5 10)'))) GEOMETRYCOLLECTION(POLYGON((0 0,0 5,5 5,5 0,0 0)),POLYGON((6 6,6 11,11 11,11 6,6 6)),POINT(5 10)) DROP PROCEDURE p1; # # Bug #13833019 ASSERTION `T1->RESULT_RANGE' FAILED IN GCALC_OPERATION_REDUCER::END_COUPLE # SELECT GeometryType(ST_BUFFER(MULTIPOLYGONFROMTEXT('MULTIPOLYGON(((0 0,9 4,3 3,0 0)),((2 2,2 2,8 8,2 3,2 2)))'), 3)); GeometryType(ST_BUFFER(MULTIPOLYGONFROMTEXT('MULTIPOLYGON(((0 0,9 4,3 3,0 0)),((2 2,2 2,8 8,2 3,2 2)))'), 3)) POLYGON # # Bug #13832749 HANDLE_FATAL_SIGNAL IN GCALC_FUNCTION::COUNT_INTERNAL # SELECT GeometryType(ST_BUFFER(MULTIPOLYGONFROMTEXT('MULTIPOLYGON(((3 5,2 5,2 4,3 4,3 5)),((2 2,2 8,8 8,8 2,2 2), (4 4,4 6,6 6,6 4,4 4)), ((9 9,8 1,1 5,9 9)))'),1)); GeometryType(ST_BUFFER(MULTIPOLYGONFROMTEXT('MULTIPOLYGON(((3 5,2 5,2 4,3 4,3 5)),((2 2,2 8,8 8,8 2,2 2), (4 4,4 6,6 6,6 4,4 4)), ((9 9,8 1,1 5,9 9)))'),1)) POLYGON # # Bug#13358363 - ASSERTION: N > 0 && N < SINUSES_CALCULATED*2+1 | GET_N_SINCOS/ADD_EDGE_BUFFER # DO ST_BUFFER(ST_GEOMCOLLFROMTEXT('linestring(1 1,2 2)'),''); Warnings: Warning 1292 Truncated incorrect DOUBLE value: '' SELECT ST_WITHIN( LINESTRINGFROMTEXT(' LINESTRING(3 8,9 2,3 8,3 3,7 6,4 7,4 7,8 1) '), ST_BUFFER(MULTIPOLYGONFROMTEXT(' MULTIPOLYGON(((3 5,2 5,2 4,3 4,3 5)),((2 2,2 8,8 8,8 2,2 2),(4 4,4 6,6 6,6 4,4 4)),((0 5,3 5,3 2,1 2,1 1,3 1,3 0,0 0,0 3,2 3,2 4,0 4,0 5))) '), ST_NUMINTERIORRINGS(POLYGONFROMTEXT('POLYGON((3 5,2 4,2 5,3 5)) ')))); ST_WITHIN( LINESTRINGFROMTEXT(' LINESTRING(3 8,9 2,3 8,3 3,7 6,4 7,4 7,8 1) '), ST_BUFFER(MULTIPOLYGONFROMTEXT(' MULTIPOLYGON(((3 5,2 5,2 4,3 4,3 5)),((2 2,2 8,8 8,8 2,2 2),(4 4,4 6,6 6,6 4,4 4)),((0 5,3 5,3 2,1 2,1 1,3 1,3 0,0 0,0 3,2 3,2 4,0 4,0 5))) ') 0 SELECT ST_DIMENSION(ST_BUFFER(POLYGONFROMTEXT(' POLYGON((3 5,2 5,2 4,3 4,3 5)) '), ST_NUMINTERIORRINGS(POLYGONFROMTEXT(' POLYGON((0 0,9 3,4 2,0 0))')))); ST_DIMENSION(ST_BUFFER(POLYGONFROMTEXT(' POLYGON((3 5,2 5,2 4,3 4,3 5)) '), ST_NUMINTERIORRINGS(POLYGONFROMTEXT(' POLYGON((0 0,9 3,4 2,0 0))')))) 2 SELECT ST_NUMINTERIORRINGS( ST_ENVELOPE(ST_BUFFER(MULTIPOLYGONFROMTEXT('MULTIPOLYGON(((3 5,2 5,2 4,3 4,3 5))) '), SRID(MULTILINESTRINGFROMTEXT('MULTILINESTRING((2 2,4 2,1 2,2 4,2 2)) '))))); ST_NUMINTERIORRINGS( ST_ENVELOPE(ST_BUFFER(MULTIPOLYGONFROMTEXT('MULTIPOLYGON(((3 5,2 5,2 4,3 4,3 5))) '), SRID(MULTILINESTRINGFROMTEXT('MULTILINESTRING((2 2,4 2,1 2,2 4,2 2)) '))))) 0 SELECT ASTEXT(ST_BUFFER(POLYGONFROMTEXT(' POLYGON((9 9,5 2,4 5,9 9))'), SRID(GEOMETRYFROMTEXT(' MULTIPOINT(8 4,5 0,7 8,6 9,3 4,7 3,5 5) ')))); ASTEXT(ST_BUFFER(POLYGONFROMTEXT(' POLYGON((9 9,5 2,4 5,9 9))'), SRID(GEOMETRYFROMTEXT(' MULTIPOINT(8 4,5 0,7 8,6 9,3 4,7 3,5 5) ')))) POLYGON((9 9,5 2,4 5,9 9))