create table t1 (i int, i2 char(10), g geometry not null, primary key (i, i2), spatial index (g))engine=innodb;
insert into t1 values (1, "111", POINT(1,1));
insert into t1 values (2, "222", POINT(1.5,1.5));
insert into t1 values (3, "333", POINT(3,3));
insert into t1 values (4, "444", POINT(3.1,3.1));
insert into t1 values (5, "555", POINT(5,5));
analyze table t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	Engine-independent statistics collected
test.t1	analyze	status	OK
set @g1 = ST_GeomFromText('Polygon((0 0,0 3,3 3,3 0,0 0))');
explain select ST_astext(t1.g) from t1 where MBRWithin(t1.g, @g1);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	range	g	g	34	NULL	5	Using where
select ST_astext(t1.g) from t1 where MBRWithin(t1.g, @g1);
ST_astext(t1.g)
POINT(1.5 1.5)
POINT(1 1)
set @g1 = ST_GeomFromText('Polygon((0 0,0 3,3 3,3 0,0 0))');
delete from t1 where MBRWithin(t1.g, @g1);
check table t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
select ST_astext(t1.g) from t1;
ST_astext(t1.g)
POINT(3 3)
POINT(3.1 3.1)
POINT(5 5)
set @g1 = ST_GeomFromText('Polygon((5 5,5 5,5 5,5 5,5 5))');
update t1 set g = POINT(2,2) where MBRWithin(t1.g, @g1);
check table t1;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
select ST_astext(t1.g) from t1;
ST_astext(t1.g)
POINT(3 3)
POINT(3.1 3.1)
POINT(2 2)
show indexes from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment	Ignored
t1	0	PRIMARY	1	i	A	#	NULL	NULL		BTREE			NO
t1	0	PRIMARY	2	i2	A	#	NULL	NULL		BTREE			NO
t1	1	g	1	g	A	#	32	NULL		SPATIAL			NO
drop table t1;
create table t1 (name VARCHAR(100), square GEOMETRY not null, spatial index (square))engine=innodb;
INSERT INTO t1 VALUES("small",  ST_GeomFromText('POLYGON (( 0 0, 0 1, 1 1, 1 0, 0 0))'));
INSERT INTO t1 VALUES("big",    ST_GeomFromText('POLYGON (( 0 0, 0 3, 3 3, 3 0, 0 0))'));
INSERT INTO t1 VALUES("up",     ST_GeomFromText('POLYGON (( 0 1, 0 3, 2 3, 2 1, 0 1))'));
INSERT INTO t1 VALUES("up2",    ST_GeomFromText('POLYGON (( 0 2, 0 4, 2 4, 2 2, 0 2))'));
INSERT INTO t1 VALUES("up3",    ST_GeomFromText('POLYGON (( 0 3, 0 5, 2 5, 2 3, 0 3))'));
INSERT INTO t1 VALUES("down",   ST_GeomFromText('POLYGON (( 0 -1, 0  1, 2  1, 2 -1, 0 -1))'));
INSERT INTO t1 VALUES("down2",  ST_GeomFromText('POLYGON (( 0 -2, 0  0, 2  0, 2 -2, 0 -2))'));
INSERT INTO t1 VALUES("down3",  ST_GeomFromText('POLYGON (( 0 -3, 0 -1, 2 -1, 2 -3, 0 -3))'));
INSERT INTO t1 VALUES("right",  ST_GeomFromText('POLYGON (( 1 0, 1 2, 3 2, 3 0, 1 0))'));
INSERT INTO t1 VALUES("right2", ST_GeomFromText('POLYGON (( 2 0, 2 2, 4 2, 4 0, 2 0))'));
INSERT INTO t1 VALUES("right3", ST_GeomFromText('POLYGON (( 3 0, 3 2, 5 2, 5 0, 3 0))'));
INSERT INTO t1 VALUES("left",   ST_GeomFromText('POLYGON (( -1 0, -1 2,  1 2,  1 0, -1 0))'));
INSERT INTO t1 VALUES("left2",  ST_GeomFromText('POLYGON (( -2 0, -2 2,  0 2,  0 0, -2 0))'));
INSERT INTO t1 VALUES("left3",  ST_GeomFromText('POLYGON (( -3 0, -3 2, -1 2, -1 0, -3 0))'));
SET @p = ST_GeomFromText('POLYGON (( 0 0, 0 2, 2 2, 2 0, 0 0))');
SELECT name, ST_AsText(square) from t1 where MBRContains(@p, square);
name	ST_AsText(square)
small	POLYGON((0 0,0 1,1 1,1 0,0 0))
SELECT name, ST_AsText(square) from t1 where MBRDisjoint(@p, square);
name	ST_AsText(square)
down3	POLYGON((0 -3,0 -1,2 -1,2 -3,0 -3))
left3	POLYGON((-3 0,-3 2,-1 2,-1 0,-3 0))
right3	POLYGON((3 0,3 2,5 2,5 0,3 0))
up3	POLYGON((0 3,0 5,2 5,2 3,0 3))
SELECT name, ST_AsText(square) from t1 where MBREquals(@p, square);
name	ST_AsText(square)
SELECT name, ST_AsText(square) from t1 where MBRIntersects(@p, square);
name	ST_AsText(square)
right2	POLYGON((2 0,2 2,4 2,4 0,2 0))
right	POLYGON((1 0,1 2,3 2,3 0,1 0))
up2	POLYGON((0 2,0 4,2 4,2 2,0 2))
up	POLYGON((0 1,0 3,2 3,2 1,0 1))
big	POLYGON((0 0,0 3,3 3,3 0,0 0))
small	POLYGON((0 0,0 1,1 1,1 0,0 0))
down	POLYGON((0 -1,0 1,2 1,2 -1,0 -1))
down2	POLYGON((0 -2,0 0,2 0,2 -2,0 -2))
left	POLYGON((-1 0,-1 2,1 2,1 0,-1 0))
left2	POLYGON((-2 0,-2 2,0 2,0 0,-2 0))
SELECT name, ST_AsText(square) from t1 where MBROverlaps(@p, square);
name	ST_AsText(square)
right	POLYGON((1 0,1 2,3 2,3 0,1 0))
up	POLYGON((0 1,0 3,2 3,2 1,0 1))
down	POLYGON((0 -1,0 1,2 1,2 -1,0 -1))
left	POLYGON((-1 0,-1 2,1 2,1 0,-1 0))
SELECT name, ST_AsText(square) from t1 where MBRTouches(@p, square);
name	ST_AsText(square)
right2	POLYGON((2 0,2 2,4 2,4 0,2 0))
up2	POLYGON((0 2,0 4,2 4,2 2,0 2))
down2	POLYGON((0 -2,0 0,2 0,2 -2,0 -2))
left2	POLYGON((-2 0,-2 2,0 2,0 0,-2 0))
SELECT name, ST_AsText(square) from t1 where MBRWithin(@p, square);
name	ST_AsText(square)
big	POLYGON((0 0,0 3,3 3,3 0,0 0))
SELECT GROUP_CONCAT(a1.name ORDER BY a1.name) AS MBRoverlaps FROM t1 a1 WHERE MBROverlaps(a1.square, @vert1) GROUP BY a1.name;
MBRoverlaps
SELECT GROUP_CONCAT(a1.name ORDER BY a1.name) AS MBRoverlaps FROM t1 a1 WHERE MBROverlaps(a1.square, @horiz1) GROUP BY a1.name;
MBRoverlaps
SELECT MBROverlaps(@horiz1, @vert1) FROM DUAL;
MBROverlaps(@horiz1, @vert1)
NULL
SELECT MBROverlaps(@horiz1, @horiz2) FROM DUAL;
MBROverlaps(@horiz1, @horiz2)
NULL
SELECT MBROverlaps(@horiz1, @horiz3) FROM DUAL;
MBROverlaps(@horiz1, @horiz3)
NULL
SELECT MBROverlaps(@horiz1, @point1) FROM DUAL;
MBROverlaps(@horiz1, @point1)
NULL
SELECT MBROverlaps(@horiz1, @point2) FROM DUAL;
MBROverlaps(@horiz1, @point2)
NULL
DROP TABLE t1;
create table t1 (i int not null, g geometry not null)engine=innodb;
insert into t1 values (1, POINT(1,1));
insert into t1 values (2, POINT(1.5,1.5));
insert into t1 values (3, POINT(3,3));
insert into t1 values (4, POINT(3.1,3.1));
insert into t1 values (5, POINT(5,5));
alter table t1 add primary key(i), algorithm=inplace;
alter table t1 drop primary key;
create spatial index idx on t1(g) algorithm=inplace;
create spatial index idx2 on t1(g);
Warnings:
Note	1831	Duplicate index `idx2`. This is deprecated and will be disallowed in a future release
alter table t1 add primary key(i), algorithm=inplace;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `i` int(11) NOT NULL,
  `g` geometry NOT NULL,
  PRIMARY KEY (`i`),
  SPATIAL KEY `idx` (`g`),
  SPATIAL KEY `idx2` (`g`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
drop index idx on t1;
drop table t1;