GeometryCollection(g1,g2,...)

CREATE TABLE gis_geometrycollection  (g GEOMETRYCOLLECTION);
SHOW FIELDS FROM gis_geometrycollection;
INSERT INTO gis_geometrycollection VALUES
    (GeomCollFromText('GEOMETRYCOLLECTION(POINT(0 0), LINESTRING(0 0,10 10))')),
    (GeometryFromWKB(AsWKB(GeometryCollection(Point(44, 6), LineString(Point(3, 6), Point(7, 9)))))),
    (GeomFromText('GeometryCollection()')),
    (GeomFromText('GeometryCollection EMPTY'));

MultiLineString(ls1,ls2,...)

CREATE TABLE gis_multi_line (g MULTILINESTRING);
INSERT INTO gis_multi_line VALUES
 (MultiLineStringFromText('MULTILINESTRING((10 48,10 21,10 0),(16 0,16 23,16 48))')),
 (MLineFromText('MULTILINESTRING((10 48,10 21,10 0))')),
 (MLineFromWKB(AsWKB(MultiLineString(LineString(Point(1, 2), 
    Point(3, 5)), LineString(Point(2, 5),Point(5, 8),Point(21, 7))))));

MultiPoint(pt1,pt2,...)

SET @g = ST_GEOMFROMTEXT('MultiPoint( 1 1, 2 2, 5 3, 7 2, 9 3, 8 4, 6 6, 6 9, 4 9, 1 5 )');

CREATE TABLE gis_multi_point (g MULTIPOINT);
INSERT INTO gis_multi_point VALUES
    (MultiPointFromText('MULTIPOINT(0 0,10 10,10 20,20 20)')),
    (MPointFromText('MULTIPOINT(1 1,11 11,11 21,21 21)')),
    (MPointFromWKB(AsWKB(MultiPoint(Point(3, 6), Point(4, 10)))));

ST_Relate(g1, g2, i)

ST_DISTANCE(g1,g2)

SELECT ST_Distance(POINT(1,2),POINT(2,2));
+------------------------------------+
| ST_Distance(POINT(1,2),POINT(2,2)) |
+------------------------------------+
|                                  1 |
+------------------------------------+

ST_IsClosed(g)
IsClosed(g)

SET @ls = 'LineString(0 0, 0 4, 4 4, 0 0)';
SELECT ST_ISCLOSED(GEOMFROMTEXT(@ls));
+--------------------------------+
| ST_ISCLOSED(GEOMFROMTEXT(@ls)) |
+--------------------------------+
|                              1 |
+--------------------------------+

SET @ls = 'LineString(0 0, 0 4, 4 4, 0 1)';
SELECT ST_ISCLOSED(GEOMFROMTEXT(@ls));
+--------------------------------+
| ST_ISCLOSED(GEOMFROMTEXT(@ls)) |
+--------------------------------+
|                              0 |
+--------------------------------+

ST_SRID(g)
SRID(g)

SELECT SRID(GeomFromText('LineString(1 1,2 2)',101));
+-----------------------------------------------+
| SRID(GeomFromText('LineString(1 1,2 2)',101)) |
+-----------------------------------------------+
|                                           101 |
+-----------------------------------------------+

ST_DIFFERENCE(g1,g2)

SET @g1 = POINT(10,10), @g2 = POINT(20,20);

SELECT ST_AsText(ST_Difference(@g1, @g2));
+------------------------------------+
| ST_AsText(ST_Difference(@g1, @g2)) |
+------------------------------------+
| POINT(10 10)                       |
+------------------------------------+

ST_GeometryType(g)
GeometryType(g)

SELECT GeometryType(GeomFromText('POINT(1 1)'));
+------------------------------------------+
| GeometryType(GeomFromText('POINT(1 1)')) |
+------------------------------------------+
| POINT                                    |
+------------------------------------------+

ST_NumGeometries(gc)
NumGeometries(gc)

SET @gc = 'GeometryCollection(Point(1 1),LineString(2 2, 3 3))';

SELECT NUMGEOMETRIES(GeomFromText(@gc));
+----------------------------------+
| NUMGEOMETRIES(GeomFromText(@gc)) |
+----------------------------------+
|                                2 |
+----------------------------------+

OVERLAPS(g1,g2)

SET @g1 = ST_GEOMFROMTEXT('POINT(2 1)');

SET @g2 = ST_GEOMFROMTEXT('LINESTRING(2 1, 0 2)');

SELECT ASTEXT(ST_INTERSECTION(@g1,@g2));
+----------------------------------+
| ASTEXT(ST_INTERSECTION(@g1,@g2)) |
+----------------------------------+
| POINT(2 1)                       |
+----------------------------------+

SELECT ST_AsGeoJSON(ST_GeomFromText('POINT(5.3 7.2)'));
+-------------------------------------------------+
| ST_AsGeoJSON(ST_GeomFromText('POINT(5.3 7.2)')) |
+-------------------------------------------------+
| {"type": "Point", "coordinates": [5.3, 7.2]}    |
+-------------------------------------------------+

SET @g = 'Point(1 2)';

SELECT ST_ISSIMPLE(GEOMFROMTEXT(@g));
+-------------------------------+
| ST_ISSIMPLE(GEOMFROMTEXT(@g)) |
+-------------------------------+
|                             1 |
+-------------------------------+

CREATE TABLE geomcoll_example (
  g GEOMETRYCOLLECTION
);

INSERT INTO geomcoll_example VALUES
  (ST_GeomCollFromText(
    'GEOMETRYCOLLECTION(POINT(0 0), LINESTRING(0 1, 0 2),
    POINT(1 0))')),
  (GeometryCollection(
    Point(0, 0),
    LineString(Point(0, 1), Point(0, 2))));

SELECT ST_AsWKT(g) FROM geomcoll_example;

+---------------------------------------------------------------+
| ST_AsWKT(g)                                                   |
+---------------------------------------------------------------+
| GEOMETRYCOLLECTION(POINT(0 0),LINESTRING(0 1,0 2),POINT(1 0)) |
| GEOMETRYCOLLECTION(POINT(0 0),LINESTRING(0 1,0 2))            |
+---------------------------------------------------------------+

CREATE TABLE mlstr_example (
  m MULTILINESTRING
);

INSERT INTO mlstr_example VALUES
  (ST_MultiLineStringFromText(
    'MULTILINESTRING((0 40, 0 20, 6 30, 12 20, 12 40),
    (15 40, 15 20, 25 20, 30 25, 30 35, 25 40, 15 40))')),
  (ST_MLineFromText('MULTILINESTRING((0 0, 1 1, 2 2))')),
  (MultiLineString(
    LineString(Point(0, 40), Point(0, 20)),
    LineString(Point(6, 30), Point(12, 20), Point(12, 40))));

INSERT INTO mlstr_example VALUES
  (MultiLineStringFromText(
    'MULTILINESTRING((0 40, 0 20, 6 30, 12 20, 12 40),
    (15 40, 15 20, 25 20, 30 25, 30 35, 25 40, 15 40))')),
  (MLineFromText('MULTILINESTRING((0 0, 1 1, 2 2))')),
  (MultiLineString(
    LineString(Point(0, 40), Point(0, 20)),
    LineString(Point(6, 30), Point(12, 20), Point(12, 40))));

SELECT ST_AsWKT(m) FROM mlstr_example;

+-------------------------------------------------------------------------------------------+
| ST_AsWKT(m)                                                                               |
+-------------------------------------------------------------------------------------------+
| MULTILINESTRING((0 40,0 20,6 30,12 20,12 40),(15 40,15 20,25 20,30 25,30 35,25 40,15 40)) |
| MULTILINESTRING((0 0,1 1,2 2))                                                            |
| MULTILINESTRING((0 40,0 20),(6 30,12 20,12 40))                                           |
+-------------------------------------------------------------------------------------------+

CREATE TABLE multipoint_example (
  m MULTIPOINT
);

INSERT INTO multipoint_example VALUES
  (ST_MultiPointFromText('MULTIPOINT(0 0, 1 0, 1 1, 0 1)')),
  (ST_MPointFromText('MULTIPOINT(1 1, 2 2, 3 3, 4 4)')),
  (MultiPoint(Point(0, 0), Point(1, 1)));

INSERT INTO multipoint_example VALUES
  (MultiPointFromText('MULTIPOINT(0 0, 1 0, 1 1, 0 1)')),
  (MPointFromText('MULTIPOINT(1 1, 2 2, 3 3, 4 4)')),
  (MultiPoint(Point(0, 0), Point(1, 1)));

SELECT ST_AsWKT(m) FROM multipoint_example;

+-----------------------------+
| ST_AsWKT(m)                 |
+-----------------------------+
| MULTIPOINT(0 0,1 0,1 1,0 1) |
| MULTIPOINT(1 1,2 2,3 3,4 4) |
| MULTIPOINT(0 0,1 1)         |
+-----------------------------+

Point(x,y)

SET @g = ST_GEOMFROMTEXT('Point(1 1)');

CREATE TABLE gis_point  (g POINT);
INSERT INTO gis_point VALUES
    (PointFromText('POINT(10 10)')),
    (PointFromText('POINT(20 10)')),
    (PointFromText('POINT(20 20)')),
    (PointFromWKB(AsWKB(PointFromText('POINT(10 20)'))));

MultiPolygon(poly1,poly2,...)

CREATE TABLE multipolygon_example (
  m MULTIPOLYGON
);

ST_DISTANCE_SPHERE(g1,g2,[r])

SET @zenica   = ST_GeomFromText('POINT(17.907743 44.203438)');
SET @sarajevo = ST_GeomFromText('POINT(18.413076 43.856258)');
SELECT ST_Distance_Sphere(@zenica, @sarajevo);
+----------------------------------------+
| ST_Distance_Sphere(@zenica, @sarajevo) |
+----------------------------------------+
|                      55878.59337591705 |
+----------------------------------------+

SELECT ST_Distance_Sphere(@zenica, @sarajevo, 6370986);
+-------------------------------------------------+
| ST_Distance_Sphere(@zenica, @sarajevo, 6370986) |
+-------------------------------------------------+
|                               55878.59337591705 |
+-------------------------------------------------+

SELECT ST_Distance_Sphere(@zenica, @sarajevo, 200);    
+---------------------------------------------+
| ST_Distance_Sphere(@zenica, @sarajevo, 200) |
+---------------------------------------------+
|                           1.754158410516584 |
+---------------------------------------------+

ST_GeometryN(gc,N)
GeometryN(gc,N)

SET @gc = 'GeometryCollection(Point(1 1),LineString(12 14, 9 11))';

SELECT AsText(GeometryN(GeomFromText(@gc),1));
+----------------------------------------+
| AsText(GeometryN(GeomFromText(@gc),1)) |
+----------------------------------------+
| POINT(1 1)                             |
+----------------------------------------+

ST_BUFFER(g1,r)
BUFFER(g1,r)

SET @g1 = ST_GEOMFROMTEXT('POLYGON((10 10, 10 20, 20 20, 20 10, 10 10))');

SET @g2 = ST_GEOMFROMTEXT('POINT(8 8)');

SELECT ST_WITHIN(@g2,ST_BUFFER(@g1,5));
+---------------------------------+
| ST_WITHIN(@g2,ST_BUFFER(@g1,5)) |
+---------------------------------+
|                               1 |
+---------------------------------+

SELECT ST_WITHIN(@g2,ST_BUFFER(@g1,1));
+---------------------------------+
| ST_WITHIN(@g2,ST_BUFFER(@g1,1)) |
+---------------------------------+
|                               0 |
+---------------------------------+

MBROverlaps(g1,g2)

ST_StartPoint(ls)
StartPoint(ls)

MBRIntersects(g1,g2)

INTERSECTS(g1,g2)

ST_PointN(ls,N)
PointN(ls,N)

ST_BOUNDARY(g)
BOUNDARY(g)

SELECT ST_AsText(ST_Boundary(ST_GeomFromText('LINESTRING(3 3,0 0, -3 3)')));
+----------------------------------------------------------------------+
| ST_AsText(ST_Boundary(ST_GeomFromText('LINESTRING(3 3,0 0, -3 3)'))) |
+----------------------------------------------------------------------+
| MULTIPOINT(3 3,-3 3)                                                 |
+----------------------------------------------------------------------+

SELECT ST_AsText(ST_Boundary(ST_GeomFromText('POLYGON((3 3,0 0, -3 3, 3 3))')));
+--------------------------------------------------------------------------+
| ST_AsText(ST_Boundary(ST_GeomFromText('POLYGON((3 3,0 0, -3 3, 3 3))'))) |
+--------------------------------------------------------------------------+
| LINESTRING(3 3,0 0,-3 3,3 3)                                             |
+--------------------------------------------------------------------------+

ST_EndPoint(ls)
EndPoint(ls)

MBRCoveredBy(g1, g2)

MBRTouches(g1,g2)

MBREqual(g1,g2)
MBREquals(g1,g2)

SET @g = ST_GEOMFROMTEXT('POLYGON((1 1,1 5,4 9,6 9,9 3,7 2,1 1))');

CREATE TABLE gis_polygon   (g POLYGON);
INSERT INTO gis_polygon VALUES
    (PolygonFromText('POLYGON((10 10,20 10,20 20,10 20,10 10))')),
    (PolyFromText('POLYGON((0 0,50 0,50 50,0 50,0 0), (10 10,20 10,20 20,10 20,10 10))')),
    (PolyFromWKB(AsWKB(Polygon(LineString(Point(0, 0), Point(30, 0), Point(30, 30), Point(0, 0))))));

SET @g1 = GEOMFROMTEXT('POINT (0 2)');

SET @g2 = GEOMFROMTEXT('POINT (2 0)');

SELECT ASTEXT(ST_UNION(@g1,@g2));
+---------------------------+
| ASTEXT(ST_UNION(@g1,@g2)) |
+---------------------------+
| MULTIPOINT(2 0,0 2)       |
+---------------------------+

SET @g1 = GEOMFROMTEXT('POLYGON((0 0,0 3,3 3,3 0,0 0))');

SET @g2 = GEOMFROMTEXT('POLYGON((2 2,4 2,4 4,2 4,2 2))');

SELECT ASTEXT(ST_UNION(@g1,@g2));
+------------------------------------------------+
| ASTEXT(ST_UNION(@g1,@g2))                      |
+------------------------------------------------+
| POLYGON((0 0,0 3,2 3,2 4,4 4,4 2,3 2,3 0,0 0)) |
+------------------------------------------------+

SET @ls = 'LineString(1 1,2 2,3 3)';

SELECT AsText(EndPoint(GeomFromText(@ls)));
+-------------------------------------+
| AsText(EndPoint(GeomFromText(@ls))) |
+-------------------------------------+
| POINT(3 3)                          |
+-------------------------------------+

CREATE TABLE gis_line  (g LINESTRING);
INSERT INTO gis_line VALUES
    (LineFromText('LINESTRING(0 0,0 10,10 0)')),
    (LineStringFromText('LINESTRING(10 10,20 10,20 20,10 20,10 10)')),
    (LineStringFromWKB(AsWKB(LineString(Point(10, 10), Point(40, 10)))));

SET @g1 = ST_GEOMFROMTEXT('LINESTRING(10 20, 10 40)');

SET @g2 = ST_GEOMFROMTEXT('LINESTRING(10 15, 10 25)');

SELECT ASTEXT(ST_SYMDIFFERENCE(@g1,@g2));
+----------------------------------------------+
| ASTEXT(ST_SYMDIFFERENCE(@g1,@g2))            |
+----------------------------------------------+
| MULTILINESTRING((10 15,10 20),(10 25,10 40)) |
+----------------------------------------------+

SET @g2 = ST_GeomFromText('LINESTRING(10 20, 10 41)');

SELECT ASTEXT(ST_SYMDIFFERENCE(@g1,@g2));
+-----------------------------------+
| ASTEXT(ST_SYMDIFFERENCE(@g1,@g2)) |
+-----------------------------------+
| LINESTRING(10 40,10 41)           |
+-----------------------------------+

SET @g1 = GEOMFROMTEXT('POINT(174 149)');
SET @g2 = GEOMFROMTEXT('POINT(176 151)');
SET @g3 = GEOMFROMTEXT('POLYGON((175 150, 20 40, 50 60, 125 100, 175 150))');

SELECT within(@g1,@g3);
+-----------------+
| within(@g1,@g3) |
+-----------------+
|               1 |
+-----------------+

SELECT within(@g2,@g3);
+-----------------+
| within(@g2,@g3) |
+-----------------+
|               0 |
+-----------------+

SET @ls = 'LineString(1 1,2 2,3 3)';

SELECT GLength(GeomFromText(@ls));
+----------------------------+
| GLength(GeomFromText(@ls)) |
+----------------------------+
|           2.82842712474619 |
+----------------------------+

SET @g1 = ST_GEOMFROMTEXT('POINT(2 0)');

SET @g2 = ST_GEOMFROMTEXT('LINESTRING(2 0, 0 2)');

SELECT ST_TOUCHES(@g1,@g2);
+---------------------+
| ST_TOUCHES(@g1,@g2) |
+---------------------+
|                   1 |
+---------------------+

SET @g1 = ST_GEOMFROMTEXT('POINT(2 1)');

SELECT ST_TOUCHES(@g1,@g2);
+---------------------+
| ST_TOUCHES(@g1,@g2) |
+---------------------+
|                   0 |
+---------------------+

SET @g = ST_GEOMFROMTEXT('Point(0 0)');

SELECT ST_ASTEXT(ST_CONVEXHULL(@g));
+------------------------------+
| ST_ASTEXT(ST_CONVEXHULL(@g)) |
+------------------------------+
| POINT(0 0)                   |
+------------------------------+

SET @g = ST_GEOMFROMTEXT('MultiPoint(0 0, 1 2, 2 3)');

SELECT ST_ASTEXT(ST_CONVEXHULL(@g));
+------------------------------+
| ST_ASTEXT(ST_CONVEXHULL(@g)) |
+------------------------------+
| POLYGON((0 0,1 2,2 3,0 0))   |
+------------------------------+

SET @g1 = ST_GEOMFROMTEXT('POINT(0 0)');

SET @g2 = ST_GEOMFROMTEXT('LINESTRING(2 0, 0 2)');

SELECT ST_DISJOINT(@g1,@g2);
+----------------------+
| ST_DISJOINT(@g1,@g2) |
+----------------------+
|                    1 |
+----------------------+

SET @g2 = ST_GEOMFROMTEXT('LINESTRING(0 0, 0 2)');

SELECT ST_DISJOINT(@g1,@g2);
+----------------------+
| ST_DISJOINT(@g1,@g2) |
+----------------------+
|                    0 |
+----------------------+

SET @g1 = ST_GEOMFROMTEXT('POINT(0 0)');

SET @g2 = ST_GEOMFROMTEXT('LINESTRING(0 0, 0 2)');

SELECT ST_INTERSECTS(@g1,@g2);
+------------------------+
| ST_INTERSECTS(@g1,@g2) |
+------------------------+
|                      1 |
+------------------------+

POLYGON((MINX MINY, MAXX MINY, MAXX MAXY, MINX MAXY, MINX MINY))

SELECT AsText(ST_ENVELOPE(GeomFromText('LineString(1 1,4 4)')));
+----------------------------------------------------------+
| AsText(ST_ENVELOPE(GeomFromText('LineString(1 1,4 4)'))) |
+----------------------------------------------------------+
| POLYGON((1 1,4 1,4 4,1 4,1 1))                           |
+----------------------------------------------------------+

SET @g1 = ST_GEOMFROMTEXT('POINT(174 149)');

SET @g2 = ST_GEOMFROMTEXT('POLYGON((175 150, 20 40, 50 60, 125 100, 175 150))');

SELECT ST_WITHIN(@g1,@g2);
+--------------------+
| ST_WITHIN(@g1,@g2) |
+--------------------+
|                  1 |
+--------------------+

SET @g1 = ST_GEOMFROMTEXT('POINT(176 151)');

SELECT ST_WITHIN(@g1,@g2);
+--------------------+
| ST_WITHIN(@g1,@g2) |
+--------------------+
|                  0 |
+--------------------+

SET @ls = 'LineString(1 1,2 2,3 3)';

SELECT NumPoints(GeomFromText(@ls));
+------------------------------+
| NumPoints(GeomFromText(@ls)) |
+------------------------------+
|                            3 |
+------------------------------+

SET @pt = 'Point(56.7 53.34)';

SELECT X(GeomFromText(@pt));
+----------------------+
| X(GeomFromText(@pt)) |
+----------------------+
|                 56.7 |
+----------------------+

SET @pt = 'Point(56.7 53.34)';

SELECT Y(GeomFromText(@pt));
+----------------------+
| Y(GeomFromText(@pt)) |
+----------------------+
|                53.34 |
+----------------------+

CREATE TABLE point_example (
  p POINT
);

INSERT INTO point_example VALUES
  (ST_PointFromText('POINT(1 1)')),
  (ST_PointFromText('POINT(2 2)')),
  (Point(3, 3)),
  (Point(4, 4));

SELECT ST_AsWKT(p) FROM point_example;

+-------------+
| ST_AsWKT(p) |
+-------------+
| POINT(1 1)  |
| POINT(2 2)  |
| POINT(3 3)  |
| POINT(4 4)  |
+-------------+

CREATE TABLE gis_multi_polygon  (g MULTIPOLYGON);
INSERT INTO gis_multi_polygon VALUES
    (MultiPolygonFromText('MULTIPOLYGON(((28 26,28 0,84 0,84 42,28 26),(52 18,66 23,73 9,48 6,52 18)),
     ((59 18,67 18,67 13,59 13,59 18)))')),
    (MPolyFromText('MULTIPOLYGON(((28 26,28 0,84 0,84 42,28 26),(52 18,66 23,73 9,48 6,52 18)),
        ((59 18,67 18,67 13,59 13,59 18)))')),
    (MPolyFromWKB(AsWKB(MultiPolygon(Polygon(LineString(
       Point(0, 3), Point(3, 3), Point(3, 0), Point(0, 3)))))));

INSERT INTO multipolygon_example VALUES
  (ST_MultiPolygonFromText(
    'MULTIPOLYGON(((0 40, 0 20, 6 30, 12 20, 12 40, 0 40),
    (15 40, 15 20, 25 20, 30 25, 30 35, 25 40, 15 40)))')),
  (ST_MPolyFromText(
    'MULTIPOLYGON(((-5 45, 35 45, 35 15, -5 15, -5 45),
    (0 40, 0 20, 6 30, 12 20, 12 40, 0 40),
    (15 40, 15 20, 25 20, 30 25, 30 35, 25 40, 15 40)))')),
  (MultiPolygon(Polygon(LineString(Point(0, 0), Point(0, 1),
     Point(1, 1), Point(1, 0), Point(0, 0)))));

SELECT ST_AsWKT(m) FROM multipolygon_example;

+-------------------------------------------------------------------------------------------------------------------------------+
| ST_AsWKT(m)                                                                                                                   |
+-------------------------------------------------------------------------------------------------------------------------------+
| MULTIPOLYGON(((0 40,0 20,6 30,12 20,12 40,0 40),(15 40,15 20,25 20,30 25,30 35,25 40,15 40)))                                 |
| MULTIPOLYGON(((-5 45,35 45,35 15,-5 15,-5 45),(0 40,0 20,6 30,12 20,12 40,0 40),(15 40,15 20,25 20,30 25,30 35,25 40,15 40))) |
| MULTIPOLYGON(((0 0,0 1,1 1,1 0,0 0)))                                                                                         |
+-------------------------------------------------------------------------------------------------------------------------------+

ST_CROSSES(g1,g2)

SET @g1 = ST_GEOMFROMTEXT('LINESTRING(174 149, 176 151)');

SET @g2 = ST_GEOMFROMTEXT('POLYGON((175 150, 20 40, 50 60, 125 100, 175 150))');

SELECT ST_CROSSES(@g1,@g2);
+---------------------+
| ST_CROSSES(@g1,@g2) |
+---------------------+
|                   1 |
+---------------------+

SET @g1 = ST_GEOMFROMTEXT('LINESTRING(176 149, 176 151)');

SELECT ST_CROSSES(@g1,@g2);
+---------------------+
| ST_CROSSES(@g1,@g2) |
+---------------------+
|                   0 |
+---------------------+

ST_Dimension(g)
Dimension(g)

SELECT Dimension(GeomFromText('LineString(1 1,2 2)'));
+------------------------------------------------+
| Dimension(GeomFromText('LineString(1 1,2 2)')) |
+------------------------------------------------+
|                                              1 |
+------------------------------------------------+

SET @g1 = GeomFromText('Polygon((0 0,0 3,3 3,3 0,0 0))');
SET @g2 = GeomFromText('Polygon((4 4,4 7,7 7,7 4,4 4))');
SELECT mbroverlaps(@g1,@g2);
+----------------------+
| mbroverlaps(@g1,@g2) |
+----------------------+
|                    0 |
+----------------------+

SET @g1 = GeomFromText('Polygon((0 0,0 3,3 3,3 0,0 0))');
SET @g2 = GeomFromText('Polygon((3 3,3 6,6 6,6 3,3 3))');
SELECT mbroverlaps(@g1,@g2);
+----------------------+
| mbroverlaps(@g1,@g2) |
+----------------------+
|                    0 |
+----------------------+

SET @g1 = GeomFromText('Polygon((0 0,0 4,4 4,4 0,0 0))');
SET @g2 = GeomFromText('Polygon((3 3,3 6,6 6,6 3,3 3))');
SELECT mbroverlaps(@g1,@g2);
+----------------------+
| mbroverlaps(@g1,@g2) |
+----------------------+
|                    1 |
+----------------------+

SET @ls = 'LineString(1 1,2 2,3 3)';

SELECT AsText(StartPoint(GeomFromText(@ls)));
+---------------------------------------+
| AsText(StartPoint(GeomFromText(@ls))) |
+---------------------------------------+
| POINT(1 1)                            |
+---------------------------------------+

SET @g1 = GeomFromText('Polygon((0 0,0 3,3 3,3 0,0 0))');
SET @g2 = GeomFromText('Polygon((3 3,3 6,6 6,6 3,3 3))');
SELECT mbrintersects(@g1,@g2);
+------------------------+
| mbrintersects(@g1,@g2) |
+------------------------+
|                      1 |
+------------------------+

SET @g1 = GeomFromText('Polygon((0 0,0 3,3 3,3 0,0 0))');
SET @g2 = GeomFromText('Polygon((4 4,4 7,7 7,7 4,4 4))');
SELECT mbrintersects(@g1,@g2);
+------------------------+
| mbrintersects(@g1,@g2) |
+------------------------+
|                      0 |
+------------------------+

SET @ls = 'LineString(1 1,2 2,3 3)';

SELECT AsText(PointN(GeomFromText(@ls),2));
+-------------------------------------+
| AsText(PointN(GeomFromText(@ls),2)) |
+-------------------------------------+
| POINT(2 2)                          |
+-------------------------------------+

Crosses(g1,g2)

SET @ls = 'LineString(1 1,2 2,3 3)';

SELECT AsText(EndPoint(GeomFromText(@ls)));
+-------------------------------------+
| AsText(EndPoint(GeomFromText(@ls))) |
+-------------------------------------+
| POINT(3 3)                          |
+-------------------------------------+

SET @g1a = ST_GeomFromText('Point(5 6)');
SET @g1b = ST_GeomFromText('Point(5 11)');
SET @g2 = ST_GeomFromText('Polygon((0 0,0 10,10 10,10 0,0 0))');

SELECT MBRCoveredby(@g1a,@g2), MBRCoveredby(@g1b,@g2);
+------------------------+------------------------+
| MBRCoveredby(@g1a,@g2) | MBRCoveredby(@g1b,@g2) |
+------------------------+------------------------+
|                      1 |                      0 |
+------------------------+------------------------+

SET @g1 = GeomFromText('Polygon((0 0,0 3,3 3,3 0,0 0))');
SET @g2 = GeomFromText('Polygon((4 4,4 7,7 7,7 4,4 4))');
SELECT mbrtouches(@g1,@g2);
+---------------------+
| mbrtouches(@g1,@g2) |
+---------------------+
|                   0 |
+---------------------+

SET @g1 = GeomFromText('Polygon((0 0,0 3,3 3,3 0,0 0))');
SET @g2 = GeomFromText('Polygon((3 3,3 6,6 6,6 3,3 3))');
SELECT mbrtouches(@g1,@g2);
+---------------------+
| mbrtouches(@g1,@g2) |
+---------------------+
|                   1 |
+---------------------+

SET @g1 = GeomFromText('Polygon((0 0,0 4,4 4,4 0,0 0))');
SET @g2 = GeomFromText('Polygon((3 3,3 6,6 6,6 3,3 3))');
SELECT mbrtouches(@g1,@g2);
+---------------------+
| mbrtouches(@g1,@g2) |
+---------------------+
|                   0 |
+---------------------+

ST_IsValid(g)

SELECT ST_IsValid(ST_GeomFromText('LINESTRING (0 0, 1 1)'));
+------------------------------------------------------+
| ST_IsValid(ST_GeomFromText('LINESTRING (0 0, 1 1)')) |
+------------------------------------------------------+
|                                                    1 |
+------------------------------------------------------+

SELECT ST_IsValid(ST_GeomFromText('LINESTRING (0 0, 0 0)'));
+------------------------------------------------------+
| ST_IsValid(ST_GeomFromText('LINESTRING (0 0, 0 0)')) |
+------------------------------------------------------+
|                                                    0 |
+------------------------------------------------------+

SELECT ST_IsValid(ST_GeomFromText('POINT (0)'));  
ERROR 3037 (22023): Invalid GIS data provided to function st_isvalid.

ST_Validate(g)

SELECT ST_ASTEXT(ST_VALIDATE(ST_GeomFromText('POINT(1 0)')));          
+-------------------------------------------------------+
| ST_ASTEXT(ST_VALIDATE(ST_GeomFromText('POINT(1 0)'))) |
+-------------------------------------------------------+
| POINT(1 0)                                            |
+-------------------------------------------------------+

SELECT ST_ASTEXT(ST_VALIDATE(ST_GeomFromText('POINT(1)')));  
+-----------------------------------------------------+
| ST_ASTEXT(ST_VALIDATE(ST_GeomFromText('POINT(1)'))) |
+-----------------------------------------------------+
| NULL                                                |
+-----------------------------------------------------+

ST_PointFromGeoHash(geohash, srid)

SELECT ST_ASTEXT(ST_POINTFROMGEOHASH("s00twy01mtw037m",0));
+-----------------------------------------------------+
| ST_ASTEXT(ST_POINTFROMGEOHASH("s00twy01mtw037m",0)) |
+-----------------------------------------------------+
| POINT(1 1)                                          |
+-----------------------------------------------------+

SELECT ST_ASTEXT(ST_POINTFROMGEOHASH(ST_GEOHASH(180,90,20),0));
+---------------------------------------------------------+
| ST_ASTEXT(ST_POINTFROMGEOHASH(ST_GEOHASH(180,90,20),0)) |
+---------------------------------------------------------+
| POINT(180 90)                                           |
+---------------------------------------------------------+

ST_Simplify(g, max_distance)

SELECT ST_AsText(ST_Simplify(ST_GeomFromText('LINESTRING(0 0,0 2,2 2,2 4,4 4,4 6,6 6)'), 0.5));
+-----------------------------------------------------------------------------------------+
| ST_AsText(ST_Simplify(ST_GeomFromText('LINESTRING(0 0,0 2,2 2,2 4,4 4,4 6,6 6)'), 0.5)) |
+-----------------------------------------------------------------------------------------+
| LINESTRING(0 0,0 2,2 2,2 4,4 4,4 6,6 6)                                                 |
+-----------------------------------------------------------------------------------------+

SELECT ST_AsText(ST_Simplify(ST_GeomFromText('LINESTRING(0 0,0 2,2 2,2 4,4 4,4 6,6 6)'), 1));  
+---------------------------------------------------------------------------------------+
| ST_AsText(ST_Simplify(ST_GeomFromText('LINESTRING(0 0,0 2,2 2,2 4,4 4,4 6,6 6)'), 1)) |
+---------------------------------------------------------------------------------------+
| LINESTRING(0 0,0 2,2 2,2 4,6 6)                                                       |
+---------------------------------------------------------------------------------------+

SET @g1=GEOMFROMTEXT('LINESTRING(0 0, 1 2)');
SET @g2=GEOMFROMTEXT('POLYGON((0 0, 0 2, 1 2, 1 0, 0 0))');
SELECT MbrEqual(@g1,@g2);
+-------------------+
| MbrEqual(@g1,@g2) |
+-------------------+
|                 1 |
+-------------------+

SET @g1=GEOMFROMTEXT('LINESTRING(0 0, 1 3)');
SET @g2=GEOMFROMTEXT('POLYGON((0 0, 0 2, 1 4, 1 0, 0 0))');
SELECT MbrEqual(@g1,@g2);
+-------------------+
| MbrEqual(@g1,@g2) |
+-------------------+
|                 0 |
+-------------------+

ST_GeoHash(longitude, latitude, max_length)
ST_GeoHash(point, max_length)

SELECT ST_GeoHash(ST_GeomFromText('POINT(1 1)'),15), ST_GeoHash(0,30,15);
+----------------------------------------------+---------------------+
| ST_GeoHash(ST_GeomFromText('POINT(1 1)'),15) | ST_GeoHash(0,30,15) |
+----------------------------------------------+---------------------+
| s00twy01mtw037m                              | sj248j248j248j2     |
+----------------------------------------------+---------------------+

SELECT ST_NumInteriorRings(ST_PolyFromText('POLYGON((0 0,10 0,10 10,0 10,0 0),
  (-1 -1,-5 -1,-5 -5,-1 -5,-1 -1))')) AS NumInteriorRings;
+------------------+
| NumInteriorRings |
+------------------+
|                1 |
+------------------+

CREATE TABLE polygon_example (
  p POLYGON
);

INSERT INTO polygon_example VALUES
  (ST_PolygonFromText('POLYGON((0 40, 0 20, 6 30, 12 20, 12 40, 0 40))')),
  (ST_PolyFromText('POLYGON((15 40, 15 20, 25 20, 30 25, 30 35, 25 40, 15 40))')),
  (Polygon(LineString(Point(0, 0), Point(0, 1), Point(1, 1),
  Point(1, 0), Point(0, 0))));

SELECT ST_AsWKT(p) FROM polygon_example;

+------------------------------------------------------+
| ST_AsWKT(p)                                          |
+------------------------------------------------------+
| POLYGON((0 40,0 20,6 30,12 20,12 40,0 40))           |
| POLYGON((15 40,15 20,25 20,30 25,30 35,25 40,15 40)) |
| POLYGON((0 0,0 1,1 1,1 0,0 0))                       |
+------------------------------------------------------+

SET @j = '{ "type": "Point", "coordinates": [5.3, 15.0]}';

SELECT ST_AsText(ST_GeomFromGeoJSON(@j));
+-----------------------------------+
| ST_AsText(ST_GeomFromGeoJSON(@j)) |
+-----------------------------------+
| POINT(5.3 15)                     |
+-----------------------------------+

CREATE TABLE linestring_example (
  g LINESTRING
);

INSERT INTO linestring_example VALUES
  (ST_LineFromText('LINESTRING(0 0, 1 1, 2 2)')),
  (ST_LineStringFromText('LINESTRING(10 10, 20 10, 20 20, 10 20, 10 10)')),
  (LineString(Point(10, 10), Point(40, 10)));

SELECT ST_AsWKT(g) FROM linestring_example;
<</code>>

<<sql>>
+-------------------------------------------+
| ST_AsWKT(g)                               |
+-------------------------------------------+
| LINESTRING(0 0,1 1,2 2)                   |
| LINESTRING(10 10,20 10,20 20,10 20,10 10) |
| LINESTRING(10 10,40 10)                   |
+-------------------------------------------+

SET @g = ST_GEOMFROMTEXT('MultiPoint( 1 1, 2 2, 5 3, 7 2, 9 3, 8 4, 6 6, 6 9, 4 9, 1 5 )');

SELECT ST_ASTEXT(ST_CONVEXHULL(@g));
+----------------------------------------+
| ST_ASTEXT(ST_CONVEXHULL(@g))           |
+----------------------------------------+
| POLYGON((1 1,1 5,4 9,6 9,9 3,7 2,1 1)) |
+----------------------------------------+

SET @g2 = ST_GEOMFROMTEXT('LINESTRING(2 0, 0 2)');

SELECT ST_INTERSECTS(@g1,@g2);
+------------------------+
| ST_INTERSECTS(@g1,@g2) |
+------------------------+
|                      0 |
+------------------------+

ST_LongFromGeoHash(geohash)

ST_Collect(g)

SET @ls = 'LineString(1 1,2 2,3 3)';

SELECT ST_LENGTH(ST_GeomFromText(@ls));
+---------------------------------+
| ST_LENGTH(ST_GeomFromText(@ls)) |
+---------------------------------+
|                2.82842712474619 |
+---------------------------------+

SET @g1 = GeomFromText('Polygon((0 0,0 3,3 3,3 0,0 0))');
SET @g2 = GeomFromText('Polygon((4 4,4 7,7 7,7 4,4 4))');
SELECTmbrdisjoint(@g1,@g2);
+----------------------+
| mbrdisjoint(@g1,@g2) |
+----------------------+
|                    1 |
+----------------------+

SET @g1 = GeomFromText('Polygon((0 0,0 3,3 3,3 0,0 0))');
SET @g2 = GeomFromText('Polygon((3 3,3 6,6 6,6 3,3 3))');
SELECT mbrdisjoint(@g1,@g2);
+----------------------+
| mbrdisjoint(@g1,@g2) |
+----------------------+
|                    0 |
+----------------------+

SET @g1 = GeomFromText('Polygon((0 0,0 3,3 3,3 0,0 0))');
SET @g2 = GeomFromText('Polygon((0 0,0 5,5 5,5 0,0 0))');
SELECT MBRWithin(@g1,@g2), MBRWithin(@g2,@g1);
+--------------------+--------------------+
| MBRWithin(@g1,@g2) | MBRWithin(@g2,@g1) |
+--------------------+--------------------+
|                  1 |                  0 |
+--------------------+--------------------+

SET @g1 = ST_GEOMFROMTEXT('POLYGON((175 150, 20 40, 50 60, 125 100, 175 150))');

SET @g2 = ST_GEOMFROMTEXT('POINT(174 149)');

SELECT ST_CONTAINS(@g1,@g2);
+----------------------+
| ST_CONTAINS(@g1,@g2) |
+----------------------+
|                    1 |
+----------------------+

SET @g2 = ST_GEOMFROMTEXT('POINT(175 151)');

SELECT ST_CONTAINS(@g1,@g2);
+----------------------+
| ST_CONTAINS(@g1,@g2) |
+----------------------+
|                    0 |
+----------------------+

MBRContains(g1,g2)

ST_EQUALS(g1,g2)

SET @g1 = ST_GEOMFROMTEXT('LINESTRING(174 149, 176 151)');

SET @g2 = ST_GEOMFROMTEXT('LINESTRING(176 151, 174 149)');

SELECT ST_EQUALS(@g1,@g2);
+--------------------+
| ST_EQUALS(@g1,@g2) |
+--------------------+
|                  1 |
+--------------------+

SELECT ST_LatFromGeoHash('zzzzzzzzz'), ST_LatFromGeoHash('xvrfxvrfxvrfxvr');
+--------------------------------+--------------------------------------+
| ST_LatFromGeoHash('zzzzzzzzz') | ST_LatFromGeoHash('xvrfxvrfxvrfxvr') |
+--------------------------------+--------------------------------------+
|                             90 |                                   30 |
+--------------------------------+--------------------------------------+

SELECT ST_LongFromGeoHash('zzzzzzzzz'), ST_LongFromGeoHash('sj248j248j248j2');           
+---------------------------------+---------------------------------------+
| ST_LongFromGeoHash('zzzzzzzzz') | ST_LongFromGeoHash('sj248j248j248j2') |
+---------------------------------+---------------------------------------+
|                             180 |                                     0 |
+---------------------------------+---------------------------------------+

CREATE OR REPLACE TABLE t1 ( running_number INTEGER NOT NULL
  AUTO_INCREMENT, grouping_condition INTEGER, location GEOMETRY , PRIMARY KEY (
  running_number));

INSERT INTO t1 ( grouping_condition, location ) VALUES
  ( 0,ST_GEOMFROMTEXT('POINT(0 0)',4326)),
  ( 1,ST_GEOMFROMTEXT('POINT(0 0)',4326)),
  ( 0,ST_GEOMFROMTEXT('POINT(1 0)',4326)),
  ( 1,ST_GEOMFROMTEXT('POINT(2 0)',4326)),
  ( 0,ST_GEOMFROMTEXT('POINT(3 0)',4326));

SELECT ST_EQUALS( (SELECT ST_COLLECT( location ) AS t FROM t1), 
  ST_GEOMFROMTEXT('MULTIPOINT(0 0,0 0,1 0,2 0,3 0) ',4326)) AS equals;
+--------+
| equals |
+--------+
|      1 |
+--------+

SET @g1 = GeomFromText('Polygon((0 0,0 3,3 3,3 0,0 0))');

SET @g2 = GeomFromText('Point(1 1)');

SELECT MBRContains(@g1,@g2), MBRContains(@g2,@g1);
+----------------------+----------------------+
| MBRContains(@g1,@g2) | MBRContains(@g2,@g1) |
+----------------------+----------------------+
|                    1 |                    0 |
+----------------------+----------------------+

SET @g1 = ST_GEOMFROMTEXT('POINT(0 2)');

SET @g1 = ST_GEOMFROMTEXT('POINT(2 0)');

SELECT ST_EQUALS(@g1,@g2);
+--------------------+
| ST_EQUALS(@g1,@g2) |
+--------------------+
|                  0 |
+--------------------+