mirror of
https://github.com/MariaDB/server.git
synced 2025-02-06 22:02:20 +01:00
78 lines
2.2 KiB
Text
78 lines
2.2 KiB
Text
create table t1 (id int auto_increment primary key, v vector(5) not null, vector index (v)) engine=innodb;
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insert t1 (v) values (Vec_Fromtext('[0.418,0.809,0.823,0.598,0.033]')),
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(Vec_Fromtext('[0.687,0.789,0.496,0.574,0.917]')),
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(Vec_Fromtext('[0.333,0.962,0.467,0.448,0.475]')),
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(Vec_Fromtext('[0.822,0.185,0.683,0.211,0.554]')),
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(Vec_Fromtext('[0.437,0.167,0.077,0.428,0.241]')),
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(Vec_Fromtext('[0.769,0.926,0.803,0.015,0.589]')),
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(Vec_Fromtext('[0.493,0.641,0.761,0.942,0.425]')),
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(Vec_Fromtext('[0.924,0.275,0.054,0.073,0.136]')),
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(Vec_Fromtext('[0.186,0.696,0.035,0.668,0.847]')),
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(Vec_Fromtext('[0.415,0.609,0.426,0.988,0.475]'));
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select id from t1 order by vec_distance_euclidean(v, Vec_FromText('[1,0,0,0,0]')) limit 3;
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id
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8
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5
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4
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drop table t1;
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db.opt
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t1#i#01.ibd
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t1.frm
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t1.ibd
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# shutdown server
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# remove datadir
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# xtrabackup move back
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# restart
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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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`id` int(11) NOT NULL AUTO_INCREMENT,
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`v` vector(5) NOT NULL,
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PRIMARY KEY (`id`),
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VECTOR KEY `v` (`v`)
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) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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select id, Vec_ToText(v) from t1;
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id Vec_ToText(v)
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1 [0.418,0.809,0.823,0.598,0.033]
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2 [0.687,0.789,0.496,0.574,0.917]
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3 [0.333,0.962,0.467,0.448,0.475]
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4 [0.822,0.185,0.683,0.211,0.554]
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5 [0.437,0.167,0.077,0.428,0.241]
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6 [0.769,0.926,0.803,0.015,0.589]
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7 [0.493,0.641,0.761,0.942,0.425]
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8 [0.924,0.275,0.054,0.073,0.136]
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9 [0.186,0.696,0.035,0.668,0.847]
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10 [0.415,0.609,0.426,0.988,0.475]
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select id from t1 order by vec_distance_euclidean(v, Vec_FromText('[1,0,0,0,0]')) limit 3;
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id
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8
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5
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4
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drop table t1;
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#
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# MDEV-35258 Mariabackup does not work with MyISAM tables with vector keys
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#
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create table t1 (a int, v vector(1) not null, vector(v)) engine=MyISAM;
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insert into t1 values (1,0x31313131),(2,0x32323232);
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drop table t1;
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db.opt
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t1#i#00.MYD
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t1#i#00.MYI
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t1.MYD
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t1.MYI
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t1.frm
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# shutdown server
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# remove datadir
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# xtrabackup move back
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# restart
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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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`a` int(11) DEFAULT NULL,
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`v` vector(1) NOT NULL,
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VECTOR KEY `v` (`v`)
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) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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select * from t1 order by vec_distance_euclidean(v, 0x30303030) limit 1;
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a v
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1 1111
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drop table t1;
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