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create table t1 (a int, b int as (a+1), c int as (b+1) stored);
insert t1 set a=1;
select * from t1;
a b c
1 2 3
update t1 set a=2;
select * from t1;
a b c
2 3 4
drop table t1;
create table t1 (a int, c int as(a), p varchar(20) as(rtrim(y)), y char(20), index (p,c));
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL,
`c` int(11) GENERATED ALWAYS AS (`a`) VIRTUAL,
`p` varchar(20) GENERATED ALWAYS AS (rtrim(`y`)) VIRTUAL,
`y` char(20) DEFAULT NULL,
KEY `p` (`p`,`c`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
insert into t1 (a,y) values(1, "yyy");
update t1 set a = 100 where a = 1;
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
drop table t1;
create table t1 (
a varchar(10000),
b varchar(3000),
c varchar(14000) generated always as (concat(a,b)) virtual,
d varchar(5000) generated always as (b) virtual,
e int(11) generated always as (10) virtual,
h int(11) not null primary key,
index(c(100), d(20)));
insert t1 (a,b,h) values (repeat('g', 10000), repeat('x', 2800), 1);
update t1 set a = repeat(cast(1 as char), 2000);
drop table t1;
create table t1 (
a varchar(10000),
b varchar(3000),
c varchar(14000) generated always as (concat(a,b)) virtual,
i varchar(5000) generated always as (b) virtual,
d varchar(5000) generated always as (i) virtual,
e int(11) generated always as (10) virtual,
h int(11) not null primary key,
index(c(100), d(20)));
insert t1 (a,b,h) values (repeat('g', 10000), repeat('x', 2800), 1);
update t1 set a = repeat(cast(1 as char), 2000);
drop table t1;
create table t1(a blob not null, b int, c varbinary (10) generated always as (a) virtual, unique (c(9)));
insert t1 (a,b) values ('a', 1);
replace t1 set a = 'a',b =1;
insert t1 (a,b) values ('a', 1) on duplicate key update a='b', b=2;
select * from t1;
a b c
b 2 b
drop table t1;
create table t (a int primary key, b int, c int as (b), index (c));
insert t (a,b) values (9,0);
create table t2 select * from t;
update t, t2 set t.b=10 where t.a=t2.a;
check table t;
Table Op Msg_type Msg_text
test.t check status OK
select * from t;
a b c
9 10 10
drop table t, t2;
create table t1 (a int, b int, c int, d int, e int);
insert t1 values (1,2,3,4,5), (1,2,3,4,5);
SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR
create table t (a int primary key,
b int, c blob as (b), index (c(57)),
d blob, e blob as (d), index (e(57)))
replace select * from t1;
Warnings:
Warning 1906 The value specified for generated column 'c' in table 't' has been ignored
Warning 1906 The value specified for generated column 'e' in table 't' has been ignored
Warning 1906 The value specified for generated column 'c' in table 't' has been ignored
Warning 1906 The value specified for generated column 'e' in table 't' has been ignored
check table t;
Table Op Msg_type Msg_text
test.t check status OK
select * from t;
a b c d e
1 2 2 4 4
update t set a=10, b=1, d=1;
check table t;
Table Op Msg_type Msg_text
test.t check status OK
select * from t;
a b c d e
10 1 1 1 1
replace t (a,b,d) values (10,2,2);
check table t;
Table Op Msg_type Msg_text
test.t check status OK
select * from t;
a b c d e
10 2 2 2 2
insert t(a,b,d) values (10) on duplicate key update b=3;
ERROR 21S01: Column count doesn't match value count at row 1
insert t(a,b,d) values (10,2,2) on duplicate key update b=3, d=3;
check table t;
Table Op Msg_type Msg_text
test.t check status OK
select * from t;
a b c d e
10 3 3 3 3
replace t (a,b,d) select 10,4,4;
check table t;
Table Op Msg_type Msg_text
test.t check status OK
select * from t;
a b c d e
10 4 4 4 4
insert t(a,b,d) select 10,4,4 on duplicate key update b=5, d=5;
check table t;
Table Op Msg_type Msg_text
test.t check status OK
select * from t;
a b c d e
10 5 5 5 5
replace delayed t (a,b,d) values (10,6,6);
flush tables t;
check table t;
Table Op Msg_type Msg_text
test.t check status OK
select * from t;
a b c d e
10 6 6 6 6
insert delayed t(a,b,d) values (10,6,6) on duplicate key update b=7, d=7;
flush tables t;
check table t;
Table Op Msg_type Msg_text
test.t check status OK
select * from t;
a b c d e
10 7 7 7 7
load data infile 'MYSQLTEST_VARDIR/tmp/vblobs.txt' replace into table t;
check table t;
Table Op Msg_type Msg_text
test.t check status OK
select * from t;
a b c d e
10 8 8 8 8
update t set a=11, b=9, d=9 where a>5;
check table t;
Table Op Msg_type Msg_text
test.t check status OK
select * from t;
a b c d e
11 9 9 9 9
create table t2 select * from t;
update t, t2 set t.b=10, t.d=10 where t.a=t2.a;
check table t;
Table Op Msg_type Msg_text
test.t check status OK
select * from t;
a b c d e
11 10 10 10 10
update t, t tt set t.b=11, tt.d=11 where t.a=tt.a;
check table t;
Table Op Msg_type Msg_text
test.t check status OK
select * from t;
a b c d e
11 11 11 11 11
drop table t, t1, t2;
create table t (f1 int, f2 int, f3 int as (f1*2) virtual, key(f3,f2));
insert into t (f1,f2) values (1,1),(2,2);
create view v as
select a2.f1, a2.f2, a1.f3
from t a1, t a2
where a2.f3 <> 0
with local check option;
update v set f3 = 52;
drop view v;
drop table t;
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