set @OLD_SQL_MODE=@@SESSION.SQL_MODE;
create table t1 (a int, b int generated always  as (a+1));
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  `b` int(11) GENERATED ALWAYS AS (`a` + 1) VIRTUAL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
drop table t1;
create table t1 (a int, b int as (a+1) virtual);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  `b` int(11) GENERATED ALWAYS AS (`a` + 1) VIRTUAL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
drop table t1;
create table t1 (a int, b int generated always  as (a+1) persistent);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL,
  `b` int(11) GENERATED ALWAYS AS (`a` + 1) STORED
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
drop table t1;
set session sql_mode='ORACLE';
create table t1 (a int, b int as (a+1));
show create table t1;
Table	Create Table
t1	CREATE TABLE "t1" (
  "a" int(11) DEFAULT NULL,
  "b" int(11) GENERATED ALWAYS AS ("a" + 1) VIRTUAL
)
drop table t1;
create table t1 (a int, b int generated always as (a+1) virtual);
show create table t1;
Table	Create Table
t1	CREATE TABLE "t1" (
  "a" int(11) DEFAULT NULL,
  "b" int(11) GENERATED ALWAYS AS ("a" + 1) VIRTUAL
)
drop table t1;
create table t1 (a int, b int as (a+1) persistent);
show create table t1;
Table	Create Table
t1	CREATE TABLE "t1" (
  "a" int(11) DEFAULT NULL,
  "b" int(11) GENERATED ALWAYS AS ("a" + 1) STORED
)
drop table t1;
set session sql_mode=@OLD_SQL_MODE;
#
# MDEV-25091 CREATE TABLE: field references qualified by a wrong table name succeed
#
create table t2 (x int);
create table t1 (x int, y int generated always as (t2.x));
ERROR 42S22: Unknown column '`t2`.`x`' in 'GENERATED ALWAYS'
create table t1 (x int, y int check (y > t2.x));
ERROR 42S22: Unknown column '`t2`.`x`' in 'CHECK'
create table t1 (x int, y int default t2.x);
ERROR 42S22: Unknown column '`t2`.`x`' in 'DEFAULT'
create table t1 (x int, check (t2.x > 0));
ERROR 42S22: Unknown column '`t2`.`x`' in 'CHECK'
create table t1 (x int);
alter table t1 add column y int generated always as (t2.x);
ERROR 42S22: Unknown column '`t2`.`x`' in 'GENERATED ALWAYS'
alter table t1 add column y int check (z > t2.x);
ERROR 42S22: Unknown column '`t2`.`x`' in 'CHECK'
alter table t1 add column y int default t2.x;
ERROR 42S22: Unknown column '`t2`.`x`' in 'DEFAULT'
alter table t1 add constraint check (t2.x > 0);
ERROR 42S22: Unknown column '`t2`.`x`' in 'CHECK'
create or replace table t1 (x int, y int generated always as (t1.x));
create or replace table t1 (x int, y int check (y > t1.x));
create or replace table t1 (x int, y int default t1.x);
create or replace table t1 (x int, check (t1.x > 0));
create or replace table t1 (x int, y int generated always as (test.t1.x));
create or replace table t1 (x int, y int check (y > test.t1.x));
create or replace table t1 (x int, y int default test.t1.x);
create or replace table t1 (x int, check (test.t1.x > 0));
drop tables t1, t2;
create table t1 (x int, y int generated always as (test2.t1.x));
ERROR 42S22: Unknown column '`test2`.`t1`.`x`' in 'GENERATED ALWAYS'
create table t1 (x int, y int check (y > test2.t1.x));
ERROR 42S22: Unknown column '`test2`.`t1`.`x`' in 'CHECK'
create table t1 (x int, y int default test2.t1.x);
ERROR 42S22: Unknown column '`test2`.`t1`.`x`' in 'DEFAULT'
create table t1 (x int, check (test2.t1.x > 0));
ERROR 42S22: Unknown column '`test2`.`t1`.`x`' in 'CHECK'
#
# MDEV-25672 table alias from previous statement interferes later commands
#
create table t1 (a int, v_a int generated always as (a));
update t1 as x set a = 1;
alter table t1 force;
drop table t1;
create table t1 (
id int not null auto_increment primary key,
order_date_time datetime not null,
order_date date generated always as (convert(order_date_time, date)),
language_id binary(16) null
);
update t1 as tx set order_date= null;
alter table t1 modify column language_id binary(16) not null;
drop table t1;
#
# MDEV-24176 Server crashes after insert in the table with virtual column generated using date_format() and if()
#
create table t1 (d1 date not null, d2 date not null,
gd text as (concat(d1,if(d1 <> d2, date_format(d2, 'to %y-%m-%d '), ''))) );
insert into t1(d1,d2) values
('2020-09-01','2020-09-01'),('2020-05-01','2020-09-01');
select * from t1;
d1	d2	gd
2020-09-01	2020-09-01	2020-09-01
2020-05-01	2020-09-01	2020-05-01to 20-09-01 
drop table t1;
# MDEV-25772 (duplicate) and LOCK TABLES case
create table t1 (d1 datetime , v_d1 tinyint(1) as (d1 < curdate()));
insert into t1 (d1) values ('2021-09-11 08:38:23'), ('2021-09-01 08:38:23');
lock tables t1 write;
select * from t1 where v_d1=1;
d1	v_d1
2021-09-11 08:38:23	1
2021-09-01 08:38:23	1
select * from t1;
d1	v_d1
2021-09-11 08:38:23	1
2021-09-01 08:38:23	1
unlock tables;
drop table t1;
# MDEV-26432 (duplicate)
create table t1 (v2 int, v1 int as ((user() like 'x'))) ;
select 1 from t1 where v1=1 ;
1
select * from t1;
v2	v1
drop table t1;
create table t1 (v2 int as ( user () like 'x'));
select 1 from t1 order by v2 ;
1
alter table t1 add i int;
drop table t1;
# MDEV-26437 (duplicate)
create table v0 (v2 int not null,
v1 bigint as (case 'x' when current_user() then v2 end));
select v2 as v3 from v0 where v1 like 'x' escape 'x';
v3
insert into v0 (v2) values (-128);
drop table v0;
create table t1 (vi int as (case 'x' when current_user() then 1 end));
select 1 from t1 where vi=1;
1
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `vi` int(11) GENERATED ALWAYS AS (case 'x' when current_user() then 1 end) VIRTUAL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
drop table t1;
create table t1 (vi int as (case 'x' when current_user() then 1 end));
select 1 from t1 where vi=1;
1
select 1 from t1 where vi=1;
1
drop table t1;
# MDEV-28092 (duplicate)
create table t1 (b timestamp, a int as (1 in (dayofmonth (b between 'x' and current_user) = b)));
insert into t1(b) values ('2022-03-17 14:55:37');
select 1 from t1 x natural join t1;
1
1
Warnings:
Warning	1292	Truncated incorrect datetime value: 'x'
Warning	1292	Truncated incorrect datetime value: 'root@localhost'
Warning	1292	Truncated incorrect datetime value: 'x'
Warning	1292	Truncated incorrect datetime value: 'root@localhost'
drop table t1;
# MDEV-28089 (duplicate)
create table t1 (a int , b date as (1 in ('x' ,(database () = 'x' is null) ))) ;
select b from t1;
b
select a from t1 order by 'x' = b;
a
drop table t1;
create table t1 (a int , b date as (1 in ('x' ,(database ()) ))) ;
Warnings:
Warning	1292	Truncated incorrect DECIMAL value: 'x'
Warning	1292	Truncated incorrect DECIMAL value: 'test'
select b from t1;
b
Warnings:
Warning	1292	Truncated incorrect DECIMAL value: 'x'
Warning	1292	Truncated incorrect DECIMAL value: 'test'
select a from t1 order by 'x' = b;
a
Warnings:
Warning	1292	Truncated incorrect DECIMAL value: 'x'
Warning	1292	Truncated incorrect DECIMAL value: 'test'
drop table t1;