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25e2d0a6bb
Assertion `table->field[0]->ptr >= table->record[0] &&
table->field[0]->ptr <= table->record[0] + table->s->reclength' failed in
handler::assert_icp_limitations.
table->move_fields has some limitations:
1. It cannot be used in cascade
2. It should always have a restoring pair.
Rule 1 is covered by assertions in handler::assert_icp_limitations
and handler::ptr_in_record (commit 30894fe9a9).
Rule 2 should be manually maintained with care. Hopefully, the rule 1 assertions
may sometimes help as well.
In ha_myisam::repair, both rules are broken. table->move_fields is used
asymmetrically there: it is set on every param->fix_record call
(i.e. in compute_vcols) but is restored only once, in the end of repair.
The reason to updating field ptr's for every call is that compute_vcols can
(supposedly) be called in parallel, that is, with the same table, but different
records.
The condition to "unmove" the pointers in ha_myisam::restore_vcos_after_repair
is incorrect, when stored vcols are available, and myisam stores a VIRTUAL field
if it's the only field in the table (the record cannot be of zero length).
This patch solves the problem by "unmoving" the pointers symmetrically, in
compute_vcols. That is, both rules will be preserved maintained.
305 lines
11 KiB
Text
305 lines
11 KiB
Text
SET @@session.default_storage_engine = 'InnoDB';
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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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drop table t1;
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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) GENERATED ALWAYS AS (`a` * 2) STORED,
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UNIQUE KEY `b` (`b`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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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 STORED GENERATED
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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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drop table t1;
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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) GENERATED ALWAYS AS (`a` * 2) STORED,
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UNIQUE KEY `b` (`b`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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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 STORED GENERATED
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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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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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drop table t1;
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create table t1 (a int, b int as (a*2), index (a,b));
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drop table t1;
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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) GENERATED ALWAYS AS (`a` * 2) STORED,
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KEY `b` (`b`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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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 STORED GENERATED
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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) GENERATED ALWAYS AS (`a` * 2) STORED,
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KEY `a` (`a`,`b`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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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 STORED GENERATED
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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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alter table t1 add index (a,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 (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 generated 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 generated 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 generated 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 generated 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 generated 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 generated column
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drop table t1;
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create table t1 (a int, b int as (a+1), foreign key (b) references t2(a));
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ERROR HY000: Can't create table `test`.`t1` (errno: 150 "Foreign key constraint is incorrectly formed")
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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: Can't create table `test`.`t1` (errno: 150 "Foreign key constraint is incorrectly formed")
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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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create table t1 (a int, b timestamp as (now()), key (b));
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ERROR HY000: Function or expression 'current_timestamp()' cannot be used in the GENERATED ALWAYS AS clause of `b`
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create table t1 (a int, b timestamp as (now()));
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alter table t1 add index (b);
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ERROR HY000: Function or expression 'current_timestamp()' cannot be used in the GENERATED ALWAYS AS clause of `b`
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drop table t1;
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create table t1 (a int, b varchar(100) as (user()), key (b));
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ERROR HY000: Function or expression 'user()' cannot be used in the GENERATED ALWAYS AS clause of `b`
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create table t1 (a int, b varchar(100) as (user()));
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alter table t1 add index (b);
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ERROR HY000: Function or expression 'user()' cannot be used in the GENERATED ALWAYS AS clause of `b`
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drop table t1;
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create table t1 (a int, b double as (rand()), key (b));
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ERROR HY000: Function or expression 'rand()' cannot be used in the GENERATED ALWAYS AS clause of `b`
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create table t1 (a int, b double as (rand()));
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alter table t1 add index (b);
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ERROR HY000: Function or expression 'rand()' cannot be used in the GENERATED ALWAYS AS clause of `b`
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drop table t1;
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CREATE OR REPLACE TABLE t1 (
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f2 DOUBLE NOT NULL DEFAULT '0',
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f3 DOUBLE NOT NULL DEFAULT '0',
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f4 DOUBLE,
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f5 DOUBLE DEFAULT '0',
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v4 DOUBLE AS (IF(f4,f3,f2)) VIRTUAL,
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KEY (f5),
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KEY (v4)
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);
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INSERT INTO t1 (f2,f3,f4,f5) VALUES (5,4,1,0),(5,7,NULL,0);
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INSERT INTO t1 (f2,f3,f4,f5) SELECT f2, f3, f5, f3 FROM t1;
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INSERT INTO t1 (f2,f3,f4,f5) VALUES (5,0,NULL,1);
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INSERT INTO t1 (f2,f3,f4,f5) SELECT f2, f5, f5, f3 FROM t1;
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DELETE FROM t1 WHERE f5 = 1 OR v4 = 4 ORDER BY f5,v4 LIMIT 9;
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SELECT * from t1;
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f2 f3 f4 f5 v4
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5 7 NULL 0 5
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5 4 0 4 5
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5 7 0 7 5
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5 0 0 4 5
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5 0 0 7 5
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5 7 7 7 7
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5 1 1 0 1
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DROP TABLE t1;
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CREATE TABLE t1 (
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d DECIMAL(63,0) NOT NULL DEFAULT 0,
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c VARCHAR(64) NOT NULL DEFAULT '',
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vd DECIMAL(63,0) AS (d) VIRTUAL,
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vc VARCHAR(2048) AS (c) VIRTUAL,
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pk BIGINT AUTO_INCREMENT,
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PRIMARY KEY(pk));
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INSERT INTO t1 (d,c) VALUES (0.5,'foo');
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Warnings:
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Note 1265 Data truncated for column 'd' at row 1
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SELECT * FROM t1 WHERE vc != 'bar' ORDER BY vd;
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d c vd vc pk
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1 foo 1 foo 1
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DROP TABLE t1;
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CREATE TABLE t1 (
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pk BIGINT,
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c CHAR(64) NOT NULL DEFAULT '',
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vc CHAR(64) AS (c) VIRTUAL,
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PRIMARY KEY(pk),
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INDEX(vc(32))
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);
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DELETE FROM t1 WHERE vc IS NULL ORDER BY pk;
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DROP TABLE t1;
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SET sql_mode='';
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CREATE TABLE t1 (a INT GENERATED ALWAYS AS (1) VIRTUAL,KEY(a)) ENGINE=MyISAM;
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INSERT INTO t1 SELECT 1 FROM seq_1_to_2 ;
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Warnings:
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Warning 1906 The value specified for generated column 'a' in table 't1' has been ignored
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Warning 1906 The value specified for generated column 'a' in table 't1' has been ignored
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SELECT * FROM t1;
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a
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1
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1
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DROP TABLE t1;
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CREATE TABLE t1 (a INT GENERATED ALWAYS AS (1) VIRTUAL,KEY(a)) ENGINE=MyISAM;
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INSERT INTO t1 SELECT 1 UNION SELECT 1;
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Warnings:
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Warning 1906 The value specified for generated column 'a' in table 't1' has been ignored
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SELECT * FROM t1;
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a
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1
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DROP TABLE t1;
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#
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# MDEV-11737 Failing assertion: block->magic_n == MEM_BLOCK_MAGIC_N
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#
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CREATE TABLE t1 (i INT PRIMARY KEY, vi INT AS (i*2) VIRTUAL UNIQUE)
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ENGINE=InnoDB;
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CREATE TABLE t2 (i INT) ENGINE=InnoDB;
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ALTER TABLE t1 ADD COLUMN col INT;
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SELECT * FROM t1 WHERE vi < 2;
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i vi col
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DROP TABLE t1, t2;
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create table t1 (
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pk int auto_increment,
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col_varchar varchar(847) not null default '',
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col_int bigint(15) unsigned zerofill,
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col_datetime datetime(3) not null default '1900-01-01 00:00:00',
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col_time time(5) not null default '00:00:00',
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col_blob text,
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col_bit bit(34),
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col_year year,
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col_char char(10),
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col_dec decimal(18,9) not null default 0,
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col_enum enum('','a','b','c','d','e','f','foo','bar') not null default '',
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col_date date not null default '1900-01-01',
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col_timestamp timestamp(3) not null default '1971-01-01 00:00:00',
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vcol_datetime datetime as (truncate(col_datetime,0)) virtual,
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vcol_dec decimal(18,9) zerofill as (col_dec) virtual,
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vcol_bit bit(63) as (col_bit) virtual,
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vcol_char binary(51) as (col_char) virtual,
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vcol_timestamp timestamp(5) as (col_timestamp) virtual,
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vcol_enum enum('','a','b','c','d','e','f','foo','bar') as (col_enum) virtual,
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vcol_int tinyint(48) zerofill as (col_int) virtual,
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vcol_time time(4) as (col_time) virtual,
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vcol_varchar varbinary(3873) as (col_varchar) virtual,
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vcol_year year as (col_year) virtual,
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vcol_date date as (col_date) virtual,
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vcol_blob longtext as (col_blob) virtual,
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primary key(pk)
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) engine=innodb;
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insert into t1 (col_varchar,col_int,col_datetime,col_time,col_blob,col_bit,col_year,col_char,col_dec,col_enum,col_date,col_timestamp) values
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('foo',1,'2010-05-08 13:08:12.034783','18:32:14','foo',b'0111110101001001',1992,'f',0.2,'','1994-12-26','2019-01-11 00:00:00'),
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('bar',6,'1900-01-01 00:00:00','00:00:00','bar',b'10011000001101011000101',1985,'b',0.7,'','2028-04-06','1971-01-01 00:00:00');
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alter table t1 add index(vcol_datetime);
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drop table t1;
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create table t1 (
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pk int,
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col_blob mediumtext not null default '',
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vcol_blob tinyblob as (col_blob) virtual,
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col_char char(22) null,
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primary key(pk),
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index(col_char,vcol_blob(64))
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) engine=innodb;
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insert ignore into t1 (pk) values (1),(2);
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update t1 set col_char = 'foo' where pk = 1;
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drop table t1;
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create table t1 (
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id int not null primary key,
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a varchar(200),
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b varchar(200),
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c int,
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va char(200) generated always as (ucase(a)) virtual,
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vb char(200) generated always as (ucase(b)) virtual,
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key (c,va,vb)
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) engine=innodb;
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insert t1 (id,a,c) select seq,seq,seq from seq_1_to_330;
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select IF(@@innodb_sort_buffer_size < count(*)*200, 'GOOD', 'WRONG SIZE') from t1;
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IF(@@innodb_sort_buffer_size < count(*)*200, 'GOOD', 'WRONG SIZE')
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GOOD
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alter table t1 drop column va;
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drop table t1;
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