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drop table if exists t1,s1,s2;
Warnings:
Note 1051 Unknown table 'test.t1,test.s1,test.s2'
drop view if exists v1;
Warnings:
Note 4092 Unknown VIEW: 'test.v1'
#
# Test DEFAULT
#
CREATE SEQUENCE s1 nocache engine=myisam;
CREATE table t1 (a int default next value for s1, b int);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT nextval(`test`.`s1`),
`b` int(11) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
insert into t1 SET b=1;
insert into t1 SET b=2;
insert into t1 (b) values (3),(4);
select * from t1;
a b
1 1
2 2
3 3
4 4
update t1 set b=5 where a=1;
delete from t1 where b=1;
select * from t1;
a b
1 5
2 2
3 3
4 4
#
# Executing DEFAULT function
#
INSERT into t1 values(default(a),10);
INSERT into t1 values(default(a),default(a));
update t1 set a=default(a), b=12 where b=2;
select * from t1;
a b
1 5
8 12
3 3
4 4
5 10
6 7
select default(a), a, b from t1;
default(a) a b
9 1 5
10 8 12
11 3 3
12 4 4
13 5 10
14 6 7
select * from s1;
next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
15 1 9223372036854775806 1 1 0 0 0
select * from t1 where default(a) > 0;
a b
1 5
8 12
3 3
4 4
5 10
6 7
select * from s1;
next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
16 1 9223372036854775806 1 1 0 0 0
#
# View
#
create view v1 as select * from t1;
insert into v1 set b=20;
select * from v1;
a b
1 5
8 12
3 3
4 4
5 10
6 7
16 20
drop view v1;
#
# Alter table
#
CREATE SEQUENCE s2 nocache engine=myisam;
alter table t1 add column c int default next value for s2, add column d int default previous value for s2;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT nextval(`test`.`s1`),
`b` int(11) DEFAULT NULL,
`c` int(11) DEFAULT nextval(`test`.`s2`),
`d` int(11) DEFAULT lastval(`test`.`s2`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
select * from t1;
a b c d
1 5 1 1
8 12 2 2
3 3 3 3
4 4 4 4
5 10 5 5
6 7 6 6
16 20 7 7
drop sequence s2;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT nextval(`test`.`s1`),
`b` int(11) DEFAULT NULL,
`c` int(11) DEFAULT nextval(`test`.`s2`),
`d` int(11) DEFAULT lastval(`test`.`s2`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
drop table t1;
drop sequence s1;
#
# LOCK TABLES
#
CREATE SEQUENCE s1 nocache engine=myisam;
CREATE table t1 (a int default next value for s1, b int);
insert into t1 (b) values (3),(4);
LOCK TABLE t1 WRITE;
insert into t1 (b) values (5),(6);
ERROR HY000: Table 's1' was not locked with LOCK TABLES
UNLOCK TABLES;
LOCK TABLE t1 WRITE, s1 WRITE;
insert into t1 (b) values (5),(6);
select default(a) from t1;
default(a)
5
6
7
8
UNLOCK TABLES;
LOCK TABLE t1 READ;
insert into t1 (b) values (5),(6);
ERROR HY000: Table 's1' was not locked with LOCK TABLES
select default(a) from t1;
ERROR HY000: Table 's1' was not locked with LOCK TABLES
UNLOCK TABLES;
LOCK TABLE t1 READ, s1 read;
insert into t1 (b) values (5),(6);
ERROR HY000: Table 't1' was locked with a READ lock and can't be updated
select default(a) from t1;
ERROR HY000: Table 's1' was locked with a READ lock and can't be updated
UNLOCK TABLES;
drop table t1;
drop sequence s1;
#
# Testing prepared statements
#
CREATE or replace SEQUENCE s1 nocache engine=myisam;
CREATE or replace table t1 (a int default next value for s1, b int);
PREPARE stmt FROM "insert into t1 (b) values(?)";
execute stmt using 1;
execute stmt using 2;
execute stmt using 3;
select * from t1;
a b
1 1
2 2
3 3
drop table t1,s1;
deallocate prepare stmt;
#
# Wrong usage of default
#
CREATE table t1 (a int default next value for s1, b int);
ERROR 42S02: Table 'test.s1' doesn't exist
CREATE SEQUENCE s1 nocache engine=myisam;
CREATE table t1 (a int default next value for s1, b int);
DROP SEQUENCE s1;
insert into t1 (b) values (5),(6);
ERROR 42S02: Table 'test.s1' doesn't exist
ALTER TABLE t1 add column c int;
ERROR 42S02: Table 'test.s1' doesn't exist
CREATE SEQUENCE s1 nocache engine=myisam;
ALTER TABLE t1 add column c int;
ALTER TABLE t1 add column d int default next value for s_not_exits;
ERROR 42S02: Table 'test.s_not_exits' doesn't exist
drop table t1;
drop sequence s1;
#
# MDEV 22785 Crash with prepared statements and NEXTVAL()
#
CREATE SEQUENCE s;
CREATE TABLE t1 (id int NOT NULL DEFAULT NEXTVAL(s), PRIMARY KEY (id));
PREPARE stmt FROM " INSERT INTO t1 () values ()";
INSERT INTO t1 () values ();
EXECUTE stmt;
DROP TABLE t1;
DROP SEQUENCE s;
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