DROP TABLE IF EXISTS t1, gis_point, gis_line, gis_polygon, gis_multi_point, gis_multi_line, gis_multi_polygon, gis_geometrycollection, gis_geometry; CREATE TABLE gis_point (fid INTEGER NOT NULL PRIMARY KEY, g POINT); CREATE TABLE gis_line (fid INTEGER NOT NULL PRIMARY KEY, g LINESTRING); CREATE TABLE gis_polygon (fid INTEGER NOT NULL PRIMARY KEY, g POLYGON); CREATE TABLE gis_multi_point (fid INTEGER NOT NULL PRIMARY KEY, g MULTIPOINT); CREATE TABLE gis_multi_line (fid INTEGER NOT NULL PRIMARY KEY, g MULTILINESTRING); CREATE TABLE gis_multi_polygon (fid INTEGER NOT NULL PRIMARY KEY, g MULTIPOLYGON); CREATE TABLE gis_geometrycollection (fid INTEGER NOT NULL PRIMARY KEY, g GEOMETRYCOLLECTION); CREATE TABLE gis_geometry (fid INTEGER NOT NULL PRIMARY KEY, g GEOMETRY); SHOW FIELDS FROM gis_point; Field Type Null Key Default Extra fid int(11) PRI 0 g point YES NULL SHOW FIELDS FROM gis_line; Field Type Null Key Default Extra fid int(11) PRI 0 g linestring YES NULL SHOW FIELDS FROM gis_polygon; Field Type Null Key Default Extra fid int(11) PRI 0 g polygon YES NULL SHOW FIELDS FROM gis_multi_point; Field Type Null Key Default Extra fid int(11) PRI 0 g multipoint YES NULL SHOW FIELDS FROM gis_multi_line; Field Type Null Key Default Extra fid int(11) PRI 0 g multilinestring YES NULL SHOW FIELDS FROM gis_multi_polygon; Field Type Null Key Default Extra fid int(11) PRI 0 g multipolygon YES NULL SHOW FIELDS FROM gis_geometrycollection; Field Type Null Key Default Extra fid int(11) PRI 0 g geometrycollection YES NULL SHOW FIELDS FROM gis_geometry; Field Type Null Key Default Extra fid int(11) PRI 0 g geometry YES NULL INSERT INTO gis_point VALUES (101, PointFromText('POINT(10 10)')), (102, PointFromText('POINT(20 10)')), (103, PointFromText('POINT(20 20)')), (104, PointFromWKB(AsWKB(PointFromText('POINT(10 20)')))); INSERT INTO gis_line VALUES (105, LineFromText('LINESTRING(0 0,0 10,10 0)')), (106, LineStringFromText('LINESTRING(10 10,20 10,20 20,10 20,10 10)')), (107, LineStringFromWKB(LineString(Point(10, 10), Point(40, 10)))); INSERT INTO gis_polygon VALUES (108, PolygonFromText('POLYGON((10 10,20 10,20 20,10 20,10 10))')), (109, PolyFromText('POLYGON((0 0,50 0,50 50,0 50,0 0), (10 10,20 10,20 20,10 20,10 10))')), (110, PolyFromWKB(Polygon(LineString(Point(0, 0), Point(30, 0), Point(30, 30), Point(0, 0))))); INSERT INTO gis_multi_point VALUES (111, MultiPointFromText('MULTIPOINT(0 0,10 10,10 20,20 20)')), (112, MPointFromText('MULTIPOINT(1 1,11 11,11 21,21 21)')), (113, MPointFromWKB(MultiPoint(Point(3, 6), Point(4, 10)))); INSERT INTO gis_multi_line VALUES (114, MultiLineStringFromText('MULTILINESTRING((10 48,10 21,10 0),(16 0,16 23,16 48))')), (115, MLineFromText('MULTILINESTRING((10 48,10 21,10 0))')), (116, MLineFromWKB(MultiLineString(LineString(Point(1, 2), Point(3, 5)), LineString(Point(2, 5), Point(5, 8), Point(21, 7))))); INSERT INTO gis_multi_polygon VALUES (117, 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)))')), (118, 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)))')), (119, MPolyFromWKB(MultiPolygon(Polygon(LineString(Point(0, 3), Point(3, 3), Point(3, 0), Point(0, 3)))))); INSERT INTO gis_geometrycollection VALUES (120, GeomCollFromText('GEOMETRYCOLLECTION(POINT(0 0), LINESTRING(0 0,10 10))')), (121, GeometryFromWKB(GeometryCollection(Point(44, 6), LineString(Point(3, 6), Point(7, 9))))); INSERT into gis_geometry SELECT * FROM gis_point; INSERT into gis_geometry SELECT * FROM gis_line; INSERT into gis_geometry SELECT * FROM gis_polygon; INSERT into gis_geometry SELECT * FROM gis_multi_point; INSERT into gis_geometry SELECT * FROM gis_multi_line; INSERT into gis_geometry SELECT * FROM gis_multi_polygon; INSERT into gis_geometry SELECT * FROM gis_geometrycollection; SELECT fid, AsText(g) FROM gis_point; fid AsText(g) 101 POINT(10 10) 102 POINT(20 10) 103 POINT(20 20) 104 POINT(10 20) SELECT fid, AsText(g) FROM gis_line; fid AsText(g) 105 LINESTRING(0 0,0 10,10 0) 106 LINESTRING(10 10,20 10,20 20,10 20,10 10) 107 LINESTRING(10 10,40 10) SELECT fid, AsText(g) FROM gis_polygon; fid AsText(g) 108 POLYGON((10 10,20 10,20 20,10 20,10 10)) 109 POLYGON((0 0,50 0,50 50,0 50,0 0),(10 10,20 10,20 20,10 20,10 10)) 110 POLYGON((0 0,30 0,30 30,0 0)) SELECT fid, AsText(g) FROM gis_multi_point; fid AsText(g) 111 MULTIPOINT(0 0,10 10,10 20,20 20) 112 MULTIPOINT(1 1,11 11,11 21,21 21) 113 MULTIPOINT(3 6,4 10) SELECT fid, AsText(g) FROM gis_multi_line; fid AsText(g) 114 MULTILINESTRING((10 48,10 21,10 0),(16 0,16 23,16 48)) 115 MULTILINESTRING((10 48,10 21,10 0)) 116 MULTILINESTRING((1 2,3 5),(2 5,5 8,21 7)) SELECT fid, AsText(g) FROM gis_multi_polygon; fid AsText(g) 117 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))) 118 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))) 119 MULTIPOLYGON(((0 3,3 3,3 0,0 3))) SELECT fid, AsText(g) FROM gis_geometrycollection; fid AsText(g) 120 GEOMETRYCOLLECTION(POINT(0 0),LINESTRING(0 0,10 10)) 121 GEOMETRYCOLLECTION(POINT(44 6),LINESTRING(3 6,7 9)) SELECT fid, AsText(g) FROM gis_geometry; fid AsText(g) 101 POINT(10 10) 102 POINT(20 10) 103 POINT(20 20) 104 POINT(10 20) 105 LINESTRING(0 0,0 10,10 0) 106 LINESTRING(10 10,20 10,20 20,10 20,10 10) 107 LINESTRING(10 10,40 10) 108 POLYGON((10 10,20 10,20 20,10 20,10 10)) 109 POLYGON((0 0,50 0,50 50,0 50,0 0),(10 10,20 10,20 20,10 20,10 10)) 110 POLYGON((0 0,30 0,30 30,0 0)) 111 MULTIPOINT(0 0,10 10,10 20,20 20) 112 MULTIPOINT(1 1,11 11,11 21,21 21) 113 MULTIPOINT(3 6,4 10) 114 MULTILINESTRING((10 48,10 21,10 0),(16 0,16 23,16 48)) 115 MULTILINESTRING((10 48,10 21,10 0)) 116 MULTILINESTRING((1 2,3 5),(2 5,5 8,21 7)) 117 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))) 118 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))) 119 MULTIPOLYGON(((0 3,3 3,3 0,0 3))) 120 GEOMETRYCOLLECTION(POINT(0 0),LINESTRING(0 0,10 10)) 121 GEOMETRYCOLLECTION(POINT(44 6),LINESTRING(3 6,7 9)) SELECT fid, Dimension(g) FROM gis_geometry; fid Dimension(g) 101 0 102 0 103 0 104 0 105 1 106 1 107 1 108 2 109 2 110 2 111 0 112 0 113 0 114 1 115 1 116 1 117 2 118 2 119 2 120 1 121 1 SELECT fid, GeometryType(g) FROM gis_geometry; fid GeometryType(g) 101 POINT 102 POINT 103 POINT 104 POINT 105 LINESTRING 106 LINESTRING 107 LINESTRING 108 POLYGON 109 POLYGON 110 POLYGON 111 MULTIPOINT 112 MULTIPOINT 113 MULTIPOINT 114 MULTILINESTRING 115 MULTILINESTRING 116 MULTILINESTRING 117 MULTIPOLYGON 118 MULTIPOLYGON 119 MULTIPOLYGON 120 GEOMETRYCOLLECTION 121 GEOMETRYCOLLECTION SELECT fid, IsEmpty(g) FROM gis_geometry; fid IsEmpty(g) 101 0 102 0 103 0 104 0 105 0 106 0 107 0 108 0 109 0 110 0 111 0 112 0 113 0 114 0 115 0 116 0 117 0 118 0 119 0 120 0 121 0 SELECT fid, AsText(Envelope(g)) FROM gis_geometry; fid AsText(Envelope(g)) 101 POLYGON((10 10,10 10,10 10,10 10,10 10)) 102 POLYGON((20 10,20 10,20 10,20 10,20 10)) 103 POLYGON((20 20,20 20,20 20,20 20,20 20)) 104 POLYGON((10 20,10 20,10 20,10 20,10 20)) 105 POLYGON((0 0,10 0,10 10,0 10,0 0)) 106 POLYGON((10 10,20 10,20 20,10 20,10 10)) 107 POLYGON((10 10,40 10,40 10,10 10,10 10)) 108 POLYGON((10 10,20 10,20 20,10 20,10 10)) 109 POLYGON((0 0,50 0,50 50,0 50,0 0)) 110 POLYGON((0 0,30 0,30 30,0 30,0 0)) 111 POLYGON((0 0,20 0,20 20,0 20,0 0)) 112 POLYGON((1 1,21 1,21 21,1 21,1 1)) 113 POLYGON((3 6,4 6,4 10,3 10,3 6)) 114 POLYGON((10 0,16 0,16 48,10 48,10 0)) 115 POLYGON((10 0,10 0,10 48,10 48,10 0)) 116 POLYGON((1 2,21 2,21 8,1 8,1 2)) 117 POLYGON((28 0,84 0,84 42,28 42,28 0)) 118 POLYGON((28 0,84 0,84 42,28 42,28 0)) 119 POLYGON((0 0,3 0,3 3,0 3,0 0)) 120 POLYGON((0 0,10 0,10 10,0 10,0 0)) 121 POLYGON((3 6,44 6,44 9,3 9,3 6)) explain extended select Dimension(g), GeometryType(g), IsEmpty(g), AsText(Envelope(g)) from gis_geometry; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE gis_geometry ALL NULL NULL NULL NULL 21 Warnings: Note 1003 select dimension(`test`.`gis_geometry`.`g`) AS `Dimension(g)`,geometrytype(`test`.`gis_geometry`.`g`) AS `GeometryType(g)`,isempty(`test`.`gis_geometry`.`g`) AS `IsEmpty(g)`,astext(envelope(`test`.`gis_geometry`.`g`)) AS `AsText(Envelope(g))` from `test`.`gis_geometry` SELECT fid, X(g) FROM gis_point; fid X(g) 101 10 102 20 103 20 104 10 SELECT fid, Y(g) FROM gis_point; fid Y(g) 101 10 102 10 103 20 104 20 explain extended select X(g),Y(g) FROM gis_point; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE gis_point ALL NULL NULL NULL NULL 4 Warnings: Note 1003 select x(`test`.`gis_point`.`g`) AS `X(g)`,y(`test`.`gis_point`.`g`) AS `Y(g)` from `test`.`gis_point` SELECT fid, AsText(StartPoint(g)) FROM gis_line; fid AsText(StartPoint(g)) 105 POINT(0 0) 106 POINT(10 10) 107 POINT(10 10) SELECT fid, AsText(EndPoint(g)) FROM gis_line; fid AsText(EndPoint(g)) 105 POINT(10 0) 106 POINT(10 10) 107 POINT(40 10) SELECT fid, GLength(g) FROM gis_line; fid GLength(g) 105 24.142135623731 106 40 107 30 SELECT fid, NumPoints(g) FROM gis_line; fid NumPoints(g) 105 3 106 5 107 2 SELECT fid, AsText(PointN(g, 2)) FROM gis_line; fid AsText(PointN(g, 2)) 105 POINT(0 10) 106 POINT(20 10) 107 POINT(40 10) SELECT fid, IsClosed(g) FROM gis_line; fid IsClosed(g) 105 0 106 1 107 0 explain extended select AsText(StartPoint(g)),AsText(EndPoint(g)),GLength(g),NumPoints(g),AsText(PointN(g, 2)),IsClosed(g) FROM gis_line; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE gis_line ALL NULL NULL NULL NULL 3 Warnings: Note 1003 select astext(startpoint(`test`.`gis_line`.`g`)) AS `AsText(StartPoint(g))`,astext(endpoint(`test`.`gis_line`.`g`)) AS `AsText(EndPoint(g))`,glength(`test`.`gis_line`.`g`) AS `GLength(g)`,numpoints(`test`.`gis_line`.`g`) AS `NumPoints(g)`,astext(pointn(`test`.`gis_line`.`g`,2)) AS `AsText(PointN(g, 2))`,isclosed(`test`.`gis_line`.`g`) AS `IsClosed(g)` from `test`.`gis_line` SELECT fid, AsText(Centroid(g)) FROM gis_polygon; fid AsText(Centroid(g)) 108 POINT(15 15) 109 POINT(25.416666666667 25.416666666667) 110 POINT(20 10) SELECT fid, Area(g) FROM gis_polygon; fid Area(g) 108 100 109 2400 110 450 SELECT fid, AsText(ExteriorRing(g)) FROM gis_polygon; fid AsText(ExteriorRing(g)) 108 LINESTRING(10 10,20 10,20 20,10 20,10 10) 109 LINESTRING(0 0,50 0,50 50,0 50,0 0) 110 LINESTRING(0 0,30 0,30 30,0 0) SELECT fid, NumInteriorRings(g) FROM gis_polygon; fid NumInteriorRings(g) 108 0 109 1 110 0 SELECT fid, AsText(InteriorRingN(g, 1)) FROM gis_polygon; fid AsText(InteriorRingN(g, 1)) 108 NULL 109 LINESTRING(10 10,20 10,20 20,10 20,10 10) 110 NULL explain extended select AsText(Centroid(g)),Area(g),AsText(ExteriorRing(g)),NumInteriorRings(g),AsText(InteriorRingN(g, 1)) FROM gis_polygon; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE gis_polygon ALL NULL NULL NULL NULL 3 Warnings: Note 1003 select astext(centroid(`test`.`gis_polygon`.`g`)) AS `AsText(Centroid(g))`,area(`test`.`gis_polygon`.`g`) AS `Area(g)`,astext(exteriorring(`test`.`gis_polygon`.`g`)) AS `AsText(ExteriorRing(g))`,numinteriorrings(`test`.`gis_polygon`.`g`) AS `NumInteriorRings(g)`,astext(interiorringn(`test`.`gis_polygon`.`g`,1)) AS `AsText(InteriorRingN(g, 1))` from `test`.`gis_polygon` SELECT fid, IsClosed(g) FROM gis_multi_line; fid IsClosed(g) 114 0 115 0 116 0 SELECT fid, AsText(Centroid(g)) FROM gis_multi_polygon; fid AsText(Centroid(g)) 117 POINT(55.588527753042 17.426536064114) 118 POINT(55.588527753042 17.426536064114) 119 POINT(2 2) SELECT fid, Area(g) FROM gis_multi_polygon; fid Area(g) 117 1684.5 118 1684.5 119 4.5 SELECT fid, NumGeometries(g) from gis_multi_point; fid NumGeometries(g) 111 4 112 4 113 2 SELECT fid, NumGeometries(g) from gis_multi_line; fid NumGeometries(g) 114 2 115 1 116 2 SELECT fid, NumGeometries(g) from gis_multi_polygon; fid NumGeometries(g) 117 2 118 2 119 1 SELECT fid, NumGeometries(g) from gis_geometrycollection; fid NumGeometries(g) 120 2 121 2 explain extended SELECT fid, NumGeometries(g) from gis_multi_point; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE gis_multi_point ALL NULL NULL NULL NULL 3 Warnings: Note 1003 select `test`.`gis_multi_point`.`fid` AS `fid`,numgeometries(`test`.`gis_multi_point`.`g`) AS `NumGeometries(g)` from `test`.`gis_multi_point` SELECT fid, AsText(GeometryN(g, 2)) from gis_multi_point; fid AsText(GeometryN(g, 2)) 111 POINT(10 10) 112 POINT(11 11) 113 POINT(4 10) SELECT fid, AsText(GeometryN(g, 2)) from gis_multi_line; fid AsText(GeometryN(g, 2)) 114 LINESTRING(16 0,16 23,16 48) 115 NULL 116 LINESTRING(2 5,5 8,21 7) SELECT fid, AsText(GeometryN(g, 2)) from gis_multi_polygon; fid AsText(GeometryN(g, 2)) 117 POLYGON((59 18,67 18,67 13,59 13,59 18)) 118 POLYGON((59 18,67 18,67 13,59 13,59 18)) 119 NULL SELECT fid, AsText(GeometryN(g, 2)) from gis_geometrycollection; fid AsText(GeometryN(g, 2)) 120 LINESTRING(0 0,10 10) 121 LINESTRING(3 6,7 9) SELECT fid, AsText(GeometryN(g, 1)) from gis_geometrycollection; fid AsText(GeometryN(g, 1)) 120 POINT(0 0) 121 POINT(44 6) explain extended SELECT fid, AsText(GeometryN(g, 2)) from gis_multi_point; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE gis_multi_point ALL NULL NULL NULL NULL 3 Warnings: Note 1003 select `test`.`gis_multi_point`.`fid` AS `fid`,astext(geometryn(`test`.`gis_multi_point`.`g`,2)) AS `AsText(GeometryN(g, 2))` from `test`.`gis_multi_point` SELECT g1.fid as first, g2.fid as second, Within(g1.g, g2.g) as w, Contains(g1.g, g2.g) as c, Overlaps(g1.g, g2.g) as o, Equals(g1.g, g2.g) as e, Disjoint(g1.g, g2.g) as d, Touches(g1.g, g2.g) as t, Intersects(g1.g, g2.g) as i, Crosses(g1.g, g2.g) as r FROM gis_geometrycollection g1, gis_geometrycollection g2 ORDER BY first, second; first second w c o e d t i r 120 120 1 1 0 1 0 0 1 0 120 121 0 0 0 0 0 0 1 0 121 120 0 0 1 0 0 0 1 0 121 121 1 1 0 1 0 0 1 0 explain extended SELECT g1.fid as first, g2.fid as second, Within(g1.g, g2.g) as w, Contains(g1.g, g2.g) as c, Overlaps(g1.g, g2.g) as o, Equals(g1.g, g2.g) as e, Disjoint(g1.g, g2.g) as d, Touches(g1.g, g2.g) as t, Intersects(g1.g, g2.g) as i, Crosses(g1.g, g2.g) as r FROM gis_geometrycollection g1, gis_geometrycollection g2 ORDER BY first, second; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE g1 ALL NULL NULL NULL NULL 2 Using temporary; Using filesort 1 SIMPLE g2 ALL NULL NULL NULL NULL 2 Warnings: Note 1003 select `test`.`g1`.`fid` AS `first`,`test`.`g2`.`fid` AS `second`,within(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `w`,contains(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `c`,overlaps(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `o`,equals(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `e`,disjoint(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `d`,touches(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `t`,intersects(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `i`,crosses(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `r` from `test`.`gis_geometrycollection` `g1` join `test`.`gis_geometrycollection` `g2` order by `test`.`g1`.`fid`,`test`.`g2`.`fid` DROP TABLE gis_point, gis_line, gis_polygon, gis_multi_point, gis_multi_line, gis_multi_polygon, gis_geometrycollection, gis_geometry; CREATE TABLE t1 ( gp point, ln linestring, pg polygon, mp multipoint, mln multilinestring, mpg multipolygon, gc geometrycollection, gm geometry ); SHOW FIELDS FROM t1; Field Type Null Key Default Extra gp point YES NULL ln linestring YES NULL pg polygon YES NULL mp multipoint YES NULL mln multilinestring YES NULL mpg multipolygon YES NULL gc geometrycollection YES NULL gm geometry YES NULL ALTER TABLE t1 ADD fid INT NOT NULL; SHOW FIELDS FROM t1; Field Type Null Key Default Extra gp point YES NULL ln linestring YES NULL pg polygon YES NULL mp multipoint YES NULL mln multilinestring YES NULL mpg multipolygon YES NULL gc geometrycollection YES NULL gm geometry YES NULL fid int(11) 0 DROP TABLE t1; SELECT AsText(GeometryFromWKB(AsWKB(GeometryFromText('POINT(1 4)')))); AsText(GeometryFromWKB(AsWKB(GeometryFromText('POINT(1 4)')))) POINT(1 4) explain extended SELECT AsText(GeometryFromWKB(AsWKB(GeometryFromText('POINT(1 4)')))); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used Warnings: Note 1003 select astext(geometryfromwkb(aswkb(geometryfromtext(_latin1'POINT(1 4)')))) AS `AsText(GeometryFromWKB(AsWKB(GeometryFromText('POINT(1 4)'))))` explain extended SELECT AsText(GeometryFromWKB(AsWKB(PointFromText('POINT(1 4)')))); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used Warnings: Note 1003 select astext(geometryfromwkb(aswkb(geometryfromtext(_latin1'POINT(1 4)')))) AS `AsText(GeometryFromWKB(AsWKB(PointFromText('POINT(1 4)'))))` SELECT SRID(GeomFromText('LineString(1 1,2 2)',101)); SRID(GeomFromText('LineString(1 1,2 2)',101)) 101 explain extended SELECT SRID(GeomFromText('LineString(1 1,2 2)',101)); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used Warnings: Note 1003 select srid(geometryfromtext(_latin1'LineString(1 1,2 2)',101)) AS `SRID(GeomFromText('LineString(1 1,2 2)',101))` explain extended select issimple(MultiPoint(Point(3, 6), Point(4, 10))), issimple(Point(3, 6)); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used Warnings: Note 1003 select issimple(multipoint(point(3,6),point(4,10))) AS `issimple(MultiPoint(Point(3, 6), Point(4, 10)))`,issimple(point(3,6)) AS `issimple(Point(3, 6))` create table t1 (a geometry not null); insert into t1 values (GeomFromText('Point(1 2)')); insert into t1 values ('Garbage'); ERROR HY000: Unknown error insert IGNORE into t1 values ('Garbage'); ERROR HY000: Unknown error alter table t1 add spatial index(a); drop table t1;