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142 lines
6.1 KiB
Text
142 lines
6.1 KiB
Text
create table t1 (i int, i2 char(10), g geometry not null, primary key (i, i2), spatial index (g))engine=innodb;
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insert into t1 values (1, "111", POINT(1,1));
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insert into t1 values (2, "222", POINT(1.5,1.5));
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insert into t1 values (3, "333", POINT(3,3));
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insert into t1 values (4, "444", POINT(3.1,3.1));
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insert into t1 values (5, "555", POINT(5,5));
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analyze table t1;
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Table Op Msg_type Msg_text
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test.t1 analyze status Engine-independent statistics collected
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test.t1 analyze status OK
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set @g1 = ST_GeomFromText('Polygon((0 0,0 3,3 3,3 0,0 0))');
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explain select ST_astext(t1.g) from t1 where MBRWithin(t1.g, @g1);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 range g g 34 NULL 5 Using where
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select ST_astext(t1.g) from t1 where MBRWithin(t1.g, @g1);
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ST_astext(t1.g)
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POINT(1.5 1.5)
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POINT(1 1)
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set @g1 = ST_GeomFromText('Polygon((0 0,0 3,3 3,3 0,0 0))');
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delete from t1 where MBRWithin(t1.g, @g1);
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check table t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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select ST_astext(t1.g) from t1;
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ST_astext(t1.g)
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POINT(3 3)
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POINT(3.1 3.1)
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POINT(5 5)
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set @g1 = ST_GeomFromText('Polygon((5 5,5 5,5 5,5 5,5 5))');
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update t1 set g = POINT(2,2) where MBRWithin(t1.g, @g1);
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check table t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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select ST_astext(t1.g) from t1;
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ST_astext(t1.g)
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POINT(3 3)
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POINT(3.1 3.1)
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POINT(2 2)
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show indexes from t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment Ignored
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t1 0 PRIMARY 1 i A # NULL NULL BTREE NO
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t1 0 PRIMARY 2 i2 A # NULL NULL BTREE NO
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t1 1 g 1 g A # 32 NULL SPATIAL NO
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drop table t1;
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create table t1 (name VARCHAR(100), square GEOMETRY not null, spatial index (square))engine=innodb;
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INSERT INTO t1 VALUES("small", ST_GeomFromText('POLYGON (( 0 0, 0 1, 1 1, 1 0, 0 0))'));
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INSERT INTO t1 VALUES("big", ST_GeomFromText('POLYGON (( 0 0, 0 3, 3 3, 3 0, 0 0))'));
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INSERT INTO t1 VALUES("up", ST_GeomFromText('POLYGON (( 0 1, 0 3, 2 3, 2 1, 0 1))'));
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INSERT INTO t1 VALUES("up2", ST_GeomFromText('POLYGON (( 0 2, 0 4, 2 4, 2 2, 0 2))'));
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INSERT INTO t1 VALUES("up3", ST_GeomFromText('POLYGON (( 0 3, 0 5, 2 5, 2 3, 0 3))'));
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INSERT INTO t1 VALUES("down", ST_GeomFromText('POLYGON (( 0 -1, 0 1, 2 1, 2 -1, 0 -1))'));
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INSERT INTO t1 VALUES("down2", ST_GeomFromText('POLYGON (( 0 -2, 0 0, 2 0, 2 -2, 0 -2))'));
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INSERT INTO t1 VALUES("down3", ST_GeomFromText('POLYGON (( 0 -3, 0 -1, 2 -1, 2 -3, 0 -3))'));
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INSERT INTO t1 VALUES("right", ST_GeomFromText('POLYGON (( 1 0, 1 2, 3 2, 3 0, 1 0))'));
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INSERT INTO t1 VALUES("right2", ST_GeomFromText('POLYGON (( 2 0, 2 2, 4 2, 4 0, 2 0))'));
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INSERT INTO t1 VALUES("right3", ST_GeomFromText('POLYGON (( 3 0, 3 2, 5 2, 5 0, 3 0))'));
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INSERT INTO t1 VALUES("left", ST_GeomFromText('POLYGON (( -1 0, -1 2, 1 2, 1 0, -1 0))'));
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INSERT INTO t1 VALUES("left2", ST_GeomFromText('POLYGON (( -2 0, -2 2, 0 2, 0 0, -2 0))'));
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INSERT INTO t1 VALUES("left3", ST_GeomFromText('POLYGON (( -3 0, -3 2, -1 2, -1 0, -3 0))'));
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SET @p = ST_GeomFromText('POLYGON (( 0 0, 0 2, 2 2, 2 0, 0 0))');
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SELECT name, ST_AsText(square) from t1 where MBRContains(@p, square);
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name ST_AsText(square)
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small POLYGON((0 0,0 1,1 1,1 0,0 0))
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SELECT name, ST_AsText(square) from t1 where MBRDisjoint(@p, square);
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name ST_AsText(square)
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down3 POLYGON((0 -3,0 -1,2 -1,2 -3,0 -3))
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left3 POLYGON((-3 0,-3 2,-1 2,-1 0,-3 0))
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right3 POLYGON((3 0,3 2,5 2,5 0,3 0))
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up3 POLYGON((0 3,0 5,2 5,2 3,0 3))
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SELECT name, ST_AsText(square) from t1 where MBREquals(@p, square);
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name ST_AsText(square)
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SELECT name, ST_AsText(square) from t1 where MBRIntersects(@p, square);
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name ST_AsText(square)
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right2 POLYGON((2 0,2 2,4 2,4 0,2 0))
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right POLYGON((1 0,1 2,3 2,3 0,1 0))
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up2 POLYGON((0 2,0 4,2 4,2 2,0 2))
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up POLYGON((0 1,0 3,2 3,2 1,0 1))
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big POLYGON((0 0,0 3,3 3,3 0,0 0))
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small POLYGON((0 0,0 1,1 1,1 0,0 0))
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down POLYGON((0 -1,0 1,2 1,2 -1,0 -1))
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down2 POLYGON((0 -2,0 0,2 0,2 -2,0 -2))
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left POLYGON((-1 0,-1 2,1 2,1 0,-1 0))
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left2 POLYGON((-2 0,-2 2,0 2,0 0,-2 0))
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SELECT name, ST_AsText(square) from t1 where MBROverlaps(@p, square);
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name ST_AsText(square)
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right POLYGON((1 0,1 2,3 2,3 0,1 0))
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up POLYGON((0 1,0 3,2 3,2 1,0 1))
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down POLYGON((0 -1,0 1,2 1,2 -1,0 -1))
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left POLYGON((-1 0,-1 2,1 2,1 0,-1 0))
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SELECT name, ST_AsText(square) from t1 where MBRTouches(@p, square);
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name ST_AsText(square)
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right2 POLYGON((2 0,2 2,4 2,4 0,2 0))
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up2 POLYGON((0 2,0 4,2 4,2 2,0 2))
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down2 POLYGON((0 -2,0 0,2 0,2 -2,0 -2))
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left2 POLYGON((-2 0,-2 2,0 2,0 0,-2 0))
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SELECT name, ST_AsText(square) from t1 where MBRWithin(@p, square);
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name ST_AsText(square)
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big POLYGON((0 0,0 3,3 3,3 0,0 0))
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SELECT GROUP_CONCAT(a1.name ORDER BY a1.name) AS MBRoverlaps FROM t1 a1 WHERE MBROverlaps(a1.square, @vert1) GROUP BY a1.name;
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MBRoverlaps
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SELECT GROUP_CONCAT(a1.name ORDER BY a1.name) AS MBRoverlaps FROM t1 a1 WHERE MBROverlaps(a1.square, @horiz1) GROUP BY a1.name;
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MBRoverlaps
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SELECT MBROverlaps(@horiz1, @vert1) FROM DUAL;
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MBROverlaps(@horiz1, @vert1)
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NULL
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SELECT MBROverlaps(@horiz1, @horiz2) FROM DUAL;
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MBROverlaps(@horiz1, @horiz2)
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NULL
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SELECT MBROverlaps(@horiz1, @horiz3) FROM DUAL;
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MBROverlaps(@horiz1, @horiz3)
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NULL
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SELECT MBROverlaps(@horiz1, @point1) FROM DUAL;
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MBROverlaps(@horiz1, @point1)
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NULL
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SELECT MBROverlaps(@horiz1, @point2) FROM DUAL;
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MBROverlaps(@horiz1, @point2)
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NULL
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DROP TABLE t1;
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create table t1 (i int not null, g geometry not null)engine=innodb;
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insert into t1 values (1, POINT(1,1));
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insert into t1 values (2, POINT(1.5,1.5));
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insert into t1 values (3, POINT(3,3));
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insert into t1 values (4, POINT(3.1,3.1));
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insert into t1 values (5, POINT(5,5));
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alter table t1 add primary key(i), algorithm=inplace;
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alter table t1 drop primary key;
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create spatial index idx on t1(g) algorithm=inplace;
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create spatial index idx2 on t1(g);
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Warnings:
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Note 1831 Duplicate index `idx2`. This is deprecated and will be disallowed in a future release
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alter table t1 add primary key(i), algorithm=inplace;
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`i` int(11) NOT NULL,
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`g` geometry NOT NULL,
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PRIMARY KEY (`i`),
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SPATIAL KEY `idx` (`g`),
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SPATIAL KEY `idx2` (`g`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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drop index idx on t1;
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drop table t1;
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