mirror of
https://github.com/MariaDB/server.git
synced 2025-01-18 21:12:26 +01:00
158 lines
5.9 KiB
Text
158 lines
5.9 KiB
Text
SET @@session.storage_engine = 'MyISAM';
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# - UNIQUE KEY
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# - INDEX
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# - FULLTEXT INDEX
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# - SPATIAL INDEX (not supported)
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# - FOREIGN INDEX (partially supported)
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# - CHECK (allowed but not used)
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# UNIQUE
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create table t1 (a int, b int as (a*2) unique);
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ERROR HY000: Key/Index cannot be defined on a non-stored computed column
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create table t1 (a int, b int as (a*2) persistent unique);
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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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`b` int(11) AS (a*2) PERSISTENT,
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UNIQUE KEY `b` (`b`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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describe t1;
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Field Type Null Key Default Extra
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a int(11) YES NULL
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b int(11) YES UNI NULL PERSISTENT
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drop table t1;
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create table t1 (a int, b int as (a*2), unique key (b));
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ERROR HY000: Key/Index cannot be defined on a non-stored computed column
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create table t1 (a int, b int as (a*2) persistent, unique (b));
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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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`b` int(11) AS (a*2) PERSISTENT,
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UNIQUE KEY `b` (`b`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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describe t1;
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Field Type Null Key Default Extra
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a int(11) YES NULL
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b int(11) YES UNI NULL PERSISTENT
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drop table t1;
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create table t1 (a int, b int as (a*2));
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alter table t1 add unique key (b);
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ERROR HY000: Key/Index cannot be defined on a non-stored computed column
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drop table t1;
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create table t1 (a int, b int as (a*2) persistent);
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alter table t1 add unique key (b);
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drop table t1;
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# Testing data manipulation operations involving UNIQUE keys
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# on virtual columns can be found in:
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# - vcol_ins_upd.inc
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# - vcol_select.inc
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#
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# INDEX
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create table t1 (a int, b int as (a*2), index (b));
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ERROR HY000: Key/Index cannot be defined on a non-stored computed column
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create table t1 (a int, b int as (a*2), index (a,b));
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ERROR HY000: Key/Index cannot be defined on a non-stored computed column
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create table t1 (a int, b int as (a*2) persistent, index (b));
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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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`b` int(11) AS (a*2) PERSISTENT,
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KEY `b` (`b`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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describe t1;
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Field Type Null Key Default Extra
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a int(11) YES NULL
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b int(11) YES MUL NULL PERSISTENT
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drop table t1;
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create table t1 (a int, b int as (a*2) persistent, index (a,b));
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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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`b` int(11) AS (a*2) PERSISTENT,
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KEY `a` (`a`,`b`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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describe t1;
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Field Type Null Key Default Extra
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a int(11) YES MUL NULL
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b int(11) YES NULL PERSISTENT
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drop table t1;
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create table t1 (a int, b int as (a*2));
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alter table t1 add index (b);
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ERROR HY000: Key/Index cannot be defined on a non-stored computed column
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alter table t1 add index (a,b);
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ERROR HY000: Key/Index cannot be defined on a non-stored computed column
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drop table t1;
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create table t1 (a int, b int as (a*2) persistent);
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alter table t1 add index (b);
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drop table t1;
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create table t1 (a int, b int as (a*2) persistent);
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alter table t1 add index (a,b);
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create table t2 like t1;
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drop table t2;
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drop table t1;
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# Testing data manipulation operations involving INDEX
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# on virtual columns can be found in:
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# - vcol_select.inc
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#
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# TODO: FULLTEXT INDEX
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# SPATIAL INDEX
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# Error "All parts of a SPATIAL index must be NOT NULL"
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create table t1 (a int, b geometry as (a+1) persistent, spatial index (b));
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ERROR 42000: All parts of a SPATIAL index must be NOT NULL
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create table t1 (a int, b int as (a+1) persistent);
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alter table t1 add spatial index (b);
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ERROR HY000: Incorrect arguments to SPATIAL INDEX
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drop table t1;
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# FOREIGN KEY
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# Rejected FK options.
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create table t1 (a int, b int as (a+1) persistent,
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foreign key (b) references t2(a) on update set null);
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ERROR HY000: Cannot define foreign key with ON UPDATE SET NULL clause on a computed column
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create table t1 (a int, b int as (a+1) persistent,
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foreign key (b) references t2(a) on update cascade);
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ERROR HY000: Cannot define foreign key with ON UPDATE CASCADE clause on a computed column
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create table t1 (a int, b int as (a+1) persistent,
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foreign key (b) references t2(a) on delete set null);
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ERROR HY000: Cannot define foreign key with ON DELETE SET NULL clause on a computed column
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create table t1 (a int, b int as (a+1) persistent);
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alter table t1 add foreign key (b) references t2(a) on update set null;
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ERROR HY000: Cannot define foreign key with ON UPDATE SET NULL clause on a computed column
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alter table t1 add foreign key (b) references t2(a) on update cascade;
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ERROR HY000: Cannot define foreign key with ON UPDATE CASCADE clause on a computed column
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alter table t1 add foreign key (b) references t2(a) on delete set null;
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ERROR HY000: Cannot define foreign key with ON DELETE SET NULL clause on a computed column
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drop table t1;
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create table t1 (a int, b int as (a+1),
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foreign key (b) references t2(a));
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ERROR HY000: Key/Index cannot be defined on a non-stored computed column
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create table t1 (a int, b int as (a+1));
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alter table t1 add foreign key (b) references t2(a);
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ERROR HY000: Key/Index cannot be defined on a non-stored computed column
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drop table t1;
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# Allowed FK options.
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create table t2 (a int primary key, b char(5));
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create table t1 (a int, b int as (a % 10) persistent,
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foreign key (b) references t2(a) on update restrict);
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drop table t1;
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create table t1 (a int, b int as (a % 10) persistent,
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foreign key (b) references t2(a) on update no action);
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drop table t1;
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create table t1 (a int, b int as (a % 10) persistent,
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foreign key (b) references t2(a) on delete restrict);
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drop table t1;
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create table t1 (a int, b int as (a % 10) persistent,
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foreign key (b) references t2(a) on delete cascade);
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drop table t1;
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create table t1 (a int, b int as (a % 10) persistent,
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foreign key (b) references t2(a) on delete no action);
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drop table t1;
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# Testing data manipulation operations involving FOREIGN KEY
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# on virtual columns can be found in:
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# - vcol_ins_upd.inc
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# - vcol_select.inc
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#
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# TODO: CHECK
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