mariadb/mysql-test/t/create.test
dlenev@mockturtle.local 8b93e52e92 Fix for:
Bug #20662 "Infinite loop in CREATE TABLE IF NOT EXISTS ... SELECT
              with locked tables"
  Bug #20903 "Crash when using CREATE TABLE .. SELECT and triggers"
  Bug #24738 "CREATE TABLE ... SELECT is not isolated properly"
  Bug #24508 "Inconsistent results of CREATE TABLE ... SELECT when
              temporary table exists"
 
Deadlock occured when one tried to execute CREATE TABLE IF NOT
EXISTS ... SELECT statement under LOCK TABLES which held
read lock on target table.
Attempt to execute the same statement for already existing
target table with triggers caused server crashes.
Also concurrent execution of CREATE TABLE ... SELECT statement
and other statements involving target table suffered from
various races (some of which might've led to deadlocks).
Finally, attempt to execute CREATE TABLE ... SELECT in case
when a temporary table with same name was already present
led to the insertion of data into this temporary table and
creation of empty non-temporary table.
 
All above problems stemmed from the old implementation of CREATE
TABLE ... SELECT in which we created, opened and locked target
table without any special protection in a separate step and not
with the rest of tables used by this statement.
This underminded deadlock-avoidance approach used in server
and created window for races. It also excluded target table
from prelocking causing problems with trigger execution.
  
The patch solves these problems by implementing new approach to
handling of CREATE TABLE ... SELECT for base tables.
We try to open and lock table to be created at the same time as
the rest of tables used by this statement. If such table does not
exist at this moment we create and place in the table cache special
placeholder for it which prevents its creation or any other usage
by other threads.

We still use old approach for creation of temporary tables.

Also note that we decided to postpone introduction of some tests
for concurrent behaviour of CREATE TABLE ... SELECT till 5.1.
The main reason for this is absence in 5.0 ability to set @@debug
variable at runtime, which can be circumvented only by using several
test files with individual .opt files. Since the latter is likely
to slowdown test-suite unnecessary we chose not to push this tests
into 5.0, but run them manually for this version and later push
their optimized version into 5.1
2007-05-11 20:33:13 +04:00

789 lines
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#
# Check some special create statements.
#
--disable_warnings
drop table if exists t1,t2,t3,t4,t5;
drop database if exists mysqltest;
--enable_warnings
create table t1 (b char(0));
insert into t1 values (""),(null);
select * from t1;
drop table if exists t1;
create table t1 (b char(0) not null);
create table if not exists t1 (b char(0) not null);
insert into t1 values (""),(null);
select * from t1;
drop table t1;
create table t1 (a int not null auto_increment,primary key (a)) engine=heap;
drop table t1;
#
# Test of some CREATE TABLE'S that should fail
#
--error 1146
create table t2 engine=heap select * from t1;
--error 1146
create table t2 select auto+1 from t1;
drop table if exists t1,t2;
--error 1167
create table t1 (b char(0) not null, index(b));
--error 1163
create table t1 (a int not null,b text) engine=heap;
drop table if exists t1;
--error 1075
create table t1 (ordid int(8) not null auto_increment, ord varchar(50) not null, primary key (ord,ordid)) engine=heap;
-- error 1049
create table not_existing_database.test (a int);
--error 1103
create table `a/a` (a int);
--error 1103
create table `aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa` (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa int);
--error 1059
create table a (`aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa` int);
#
# Some wrong defaults, so these creates should fail too (Bug #5902)
#
--error 1067
create table t1 (a datetime default now());
--error 1294
create table t1 (a datetime on update now());
--error 1067
create table t1 (a int default 100 auto_increment);
--error 1067
create table t1 (a tinyint default 1000);
--error 1067
create table t1 (a varchar(5) default 'abcdef');
create table t1 (a varchar(5) default 'abcde');
insert into t1 values();
select * from t1;
--error 1067
alter table t1 alter column a set default 'abcdef';
drop table t1;
#
# test of dummy table names
#
create table 1ea10 (1a20 int,1e int);
insert into 1ea10 values(1,1);
select 1ea10.1a20,1e+ 1e+10 from 1ea10;
drop table 1ea10;
create table t1 (t1.index int);
drop table t1;
# Test that we get warning for this
drop database if exists mysqltest;
create database mysqltest;
create table mysqltest.$test1 (a$1 int, $b int, c$ int);
insert into mysqltest.$test1 values (1,2,3);
select a$1, $b, c$ from mysqltest.$test1;
create table mysqltest.test2$ (a int);
drop table mysqltest.test2$;
drop database mysqltest;
--error 1103
create table `` (a int);
--error 1103
drop table if exists ``;
--error 1166
create table t1 (`` int);
--error 1280
create table t1 (i int, index `` (i));
#
# Test of CREATE ... SELECT with indexes
#
create table t1 (a int auto_increment not null primary key, B CHAR(20));
insert into t1 (b) values ("hello"),("my"),("world");
create table t2 (key (b)) select * from t1;
explain select * from t2 where b="world";
select * from t2 where b="world";
drop table t1,t2;
#
# Test types after CREATE ... SELECT
#
create table t1(x varchar(50) );
create table t2 select x from t1 where 1=2;
describe t1;
describe t2;
drop table t2;
create table t2 select now() as a , curtime() as b, curdate() as c , 1+1 as d , 1.0 + 1 as e , 33333333333333333 + 3 as f;
describe t2;
drop table t2;
create table t2 select CAST("2001-12-29" AS DATE) as d, CAST("20:45:11" AS TIME) as t, CAST("2001-12-29 20:45:11" AS DATETIME) as dt;
describe t2;
drop table t1,t2;
#
# Test of CREATE ... SELECT with duplicate fields
#
create table t1 (a tinyint);
create table t2 (a int) select * from t1;
describe t1;
describe t2;
drop table if exists t2;
--error 1060
create table t2 (a int, a float) select * from t1;
drop table if exists t2;
--error 1060
create table t2 (a int) select a as b, a+1 as b from t1;
drop table if exists t2;
--error 1060
create table t2 (b int) select a as b, a+1 as b from t1;
drop table if exists t1,t2;
#
# Test CREATE ... SELECT when insert fails
#
CREATE TABLE t1 (a int not null);
INSERT INTO t1 values (1),(2),(1);
--error 1062
CREATE TABLE t2 (primary key(a)) SELECT * FROM t1;
--error 1146
SELECT * from t2;
DROP TABLE t1;
DROP TABLE IF EXISTS t2;
#
# Test of primary key with 32 index
#
create table t1 (a int not null, b int, primary key(a), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b), key (b));
show create table t1;
drop table t1;
create table t1 select if(1,'1','0'), month("2002-08-02");
drop table t1;
create table t1 select if('2002'='2002','Y','N');
select * from t1;
drop table if exists t1;
#
# Test default table type
#
SET SESSION storage_engine="heap";
SELECT @@storage_engine;
CREATE TABLE t1 (a int not null);
show create table t1;
drop table t1;
--error 1286
SET SESSION storage_engine="gemini";
SELECT @@storage_engine;
CREATE TABLE t1 (a int not null);
show create table t1;
SET SESSION storage_engine=default;
drop table t1;
#
# ISO requires that primary keys are implicitly NOT NULL
#
create table t1 ( k1 varchar(2), k2 int, primary key(k1,k2));
insert into t1 values ("a", 1), ("b", 2);
--error 1048
insert into t1 values ("c", NULL);
--error 1048
insert into t1 values (NULL, 3);
--error 1048
insert into t1 values (NULL, NULL);
drop table t1;
#
# Bug # 801
#
create table t1 select x'4132';
drop table t1;
#
# bug #1434
#
create table t1 select 1,2,3;
create table if not exists t1 select 1,2;
--error 1136
create table if not exists t1 select 1,2,3,4;
create table if not exists t1 select 1;
select * from t1;
drop table t1;
#
# Test create table if not exists with duplicate key error
#
create table t1 (a int not null, b int, primary key (a));
insert into t1 values (1,1);
create table if not exists t1 select 2;
select * from t1;
create table if not exists t1 select 3 as 'a',4 as 'b';
--error 1062
create table if not exists t1 select 3 as 'a',3 as 'b';
select * from t1;
drop table t1;
#
# Test for Bug #2985
# "Table truncated when creating another table name with Spaces"
#
--error 1103
create table `t1 `(a int);
--error 1102
create database `db1 `;
--error 1166
create table t1(`a ` int);
#
# Test for Bug #3481
# "Parser permits multiple commas without syntax error"
#
--error 1064
create table t1 (a int,);
--error 1064
create table t1 (a int,,b int);
--error 1064
create table t1 (,b int);
#
# Test create with foreign keys
#
create table t1 (a int, key(a));
create table t2 (b int, foreign key(b) references t1(a), key(b));
drop table if exists t1,t2;
#
# Test for CREATE TABLE .. LIKE ..
#
create table t1(id int not null, name char(20));
insert into t1 values(10,'mysql'),(20,'monty- the creator');
create table t2(id int not null);
insert into t2 values(10),(20);
create table t3 like t1;
show create table t3;
select * from t3;
# Disable PS becasue of @@warning_count
create table if not exists t3 like t1;
--disable_ps_protocol
select @@warning_count;
--enable_ps_protocol
create temporary table t3 like t2;
show create table t3;
select * from t3;
drop table t3;
show create table t3;
select * from t3;
drop table t2, t3;
create database mysqltest;
create table mysqltest.t3 like t1;
create temporary table t3 like mysqltest.t3;
show create table t3;
create table t2 like t3;
show create table t2;
select * from t2;
create table t3 like t1;
--error 1050
create table t3 like mysqltest.t3;
--error 1049
create table non_existing_database.t1 like t1;
--error 1051
create table t3 like non_existing_table;
--error 1050
create temporary table t3 like t1;
--error 1103
create table t3 like `a/a`;
drop table t1, t2, t3;
drop table t3;
drop database mysqltest;
#
# Test default table type
#
SET SESSION storage_engine="heap";
SELECT @@storage_engine;
CREATE TABLE t1 (a int not null);
show create table t1;
drop table t1;
--error 1286
SET SESSION storage_engine="gemini";
SELECT @@storage_engine;
CREATE TABLE t1 (a int not null);
show create table t1;
SET SESSION storage_engine=default;
drop table t1;
#
# Test types of data for create select with functions
#
create table t1(a int,b int,c int unsigned,d date,e char,f datetime,g time,h blob);
insert into t1(a)values(1);
insert into t1(a,b,c,d,e,f,g,h)
values(2,-2,2,'1825-12-14','a','2003-1-1 3:2:1','4:3:2','binary data');
select * from t1;
select a,
ifnull(b,cast(-7 as signed)) as b,
ifnull(c,cast(7 as unsigned)) as c,
ifnull(d,cast('2000-01-01' as date)) as d,
ifnull(e,cast('b' as char)) as e,
ifnull(f,cast('2000-01-01' as datetime)) as f,
ifnull(g,cast('5:4:3' as time)) as g,
ifnull(h,cast('yet another binary data' as binary)) as h,
addtime(cast('1:0:0' as time),cast('1:0:0' as time)) as dd
from t1;
create table t2
select
a,
ifnull(b,cast(-7 as signed)) as b,
ifnull(c,cast(7 as unsigned)) as c,
ifnull(d,cast('2000-01-01' as date)) as d,
ifnull(e,cast('b' as char)) as e,
ifnull(f,cast('2000-01-01' as datetime)) as f,
ifnull(g,cast('5:4:3' as time)) as g,
ifnull(h,cast('yet another binary data' as binary)) as h,
addtime(cast('1:0:0' as time),cast('1:0:0' as time)) as dd
from t1;
explain t2;
select * from t2;
drop table t1, t2;
create table t1 (a tinyint, b smallint, c mediumint, d int, e bigint, f float(3,2), g double(4,3), h decimal(5,4), i year, j date, k timestamp, l datetime, m enum('a','b'), n set('a','b'), o char(10));
create table t2 select ifnull(a,a), ifnull(b,b), ifnull(c,c), ifnull(d,d), ifnull(e,e), ifnull(f,f), ifnull(g,g), ifnull(h,h), ifnull(i,i), ifnull(j,j), ifnull(k,k), ifnull(l,l), ifnull(m,m), ifnull(n,n), ifnull(o,o) from t1;
show create table t2;
drop table t1,t2;
#
# Test of default()
#
create table t1(str varchar(10) default 'def',strnull varchar(10),intg int default '10',rel double default '3.14');
insert into t1 values ('','',0,0.0);
describe t1;
create table t2 select default(str) as str, default(strnull) as strnull, default(intg) as intg, default(rel) as rel from t1;
describe t2;
drop table t1, t2;
#
# Bug #2075
#
create table t1(name varchar(10), age smallint default -1);
describe t1;
create table t2(name varchar(10), age smallint default - 1);
describe t2;
drop table t1, t2;
#
# test for bug #1427 "enum allows duplicate values in the list"
#
create table t1(cenum enum('a'), cset set('b'));
create table t2(cenum enum('a','a'), cset set('b','b'));
create table t3(cenum enum('a','A','a','c','c'), cset set('b','B','b','d','d'));
drop table t1, t2, t3;
#
# Bug #1209
#
create database mysqltest;
use mysqltest;
select database();
drop database mysqltest;
select database();
# Connect without a database as user mysqltest_1
create user mysqltest_1;
connect (user1,localhost,mysqltest_1,,*NO-ONE*);
connection user1;
select database(), user();
connection default;
disconnect user1;
drop user mysqltest_1;
use test;
#
# Test for Bug 856 'Naming a key "Primary" causes trouble'
#
--error 1280
create table t1 (a int, index `primary` (a));
--error 1280
create table t1 (a int, index `PRIMARY` (a));
create table t1 (`primary` int, index(`primary`));
show create table t1;
create table t2 (`PRIMARY` int, index(`PRIMARY`));
show create table t2;
create table t3 (a int);
--error 1280
alter table t3 add index `primary` (a);
--error 1280
alter table t3 add index `PRIMARY` (a);
create table t4 (`primary` int);
alter table t4 add index(`primary`);
show create table t4;
create table t5 (`PRIMARY` int);
alter table t5 add index(`PRIMARY`);
show create table t5;
drop table t1, t2, t3, t4, t5;
#
# bug #3266 TEXT in CREATE TABLE SELECT
#
CREATE TABLE t1(id varchar(10) NOT NULL PRIMARY KEY, dsc longtext);
INSERT INTO t1 VALUES ('5000000001', NULL),('5000000003', 'Test'),('5000000004', NULL);
CREATE TABLE t2(id varchar(15) NOT NULL, proc varchar(100) NOT NULL, runID varchar(16) NOT NULL, start datetime NOT NULL, PRIMARY KEY (id,proc,runID,start));
INSERT INTO t2 VALUES ('5000000001', 'proc01', '20031029090650', '2003-10-29 13:38:40'),('5000000001', 'proc02', '20031029090650', '2003-10-29 13:38:51'),('5000000001', 'proc03', '20031029090650', '2003-10-29 13:38:11'),('5000000002', 'proc09', '20031024013310', '2003-10-24 01:33:11'),('5000000002', 'proc09', '20031024153537', '2003-10-24 15:36:04'),('5000000004', 'proc01', '20031024013641', '2003-10-24 01:37:29'),('5000000004', 'proc02', '20031024013641', '2003-10-24 01:37:39');
CREATE TABLE t3 SELECT t1.dsc,COUNT(DISTINCT t2.id) AS countOfRuns FROM t1 LEFT JOIN t2 ON (t1.id=t2.id) GROUP BY t1.id;
SELECT * FROM t3;
drop table t1, t2, t3;
#
# Bug#9666: Can't use 'DEFAULT FALSE' for column of type bool
#
create table t1 (b bool not null default false);
create table t2 (b bool not null default true);
insert into t1 values ();
insert into t2 values ();
select * from t1;
select * from t2;
drop table t1,t2;
#
# Bug#10224 - ANALYZE TABLE crashing with simultaneous
# CREATE ... SELECT statement.
# This tests two additional possible errors and a hang if
# an improper fix is present.
#
create table t1 (a int);
--error 1093
create table t1 select * from t1;
--error 1093
create table t2 union = (t1) select * from t1;
flush tables with read lock;
unlock tables;
drop table t1;
#
# Bug#10413: Invalid column name is not rejected
#
--error 1103
create table t1(column.name int);
--error 1103
create table t1(test.column.name int);
--error 1102
create table t1(xyz.t1.name int);
create table t1(t1.name int);
create table t2(test.t2.name int);
drop table t1,t2;
#
# Bug #12537: UNION produces longtext instead of varchar
#
CREATE TABLE t1 (f1 VARCHAR(255) CHARACTER SET utf8);
CREATE TABLE t2 AS SELECT LEFT(f1,171) AS f2 FROM t1 UNION SELECT LEFT(f1,171) AS f2 FROM t1;
DESC t2;
DROP TABLE t1,t2;
#
# Bug#12913 Simple SQL can crash server or connection
#
CREATE TABLE t12913 (f1 ENUM ('a','b')) AS SELECT 'a' AS f1;
SELECT * FROM t12913;
DROP TABLE t12913;
#
# Bug#11028: Crash on create table like
#
create database mysqltest;
use mysqltest;
drop database mysqltest;
--error ER_NO_DB_ERROR
create table test.t1 like x;
--disable_warnings
drop table if exists test.t1;
--enable_warnings
#
# Bug #6859: Bogus error message on attempt to CREATE TABLE t LIKE view
#
create database mysqltest;
use mysqltest;
create view v1 as select 'foo' from dual;
--error 1347
create table t1 like v1;
drop view v1;
drop database mysqltest;
# Bug #6008 MySQL does not create warnings when
# creating database and using IF NOT EXISTS
#
create database mysqltest;
create database if not exists mysqltest character set latin2;
show create database mysqltest;
drop database mysqltest;
use test;
create table t1 (a int);
create table if not exists t1 (a int);
drop table t1;
# BUG#14139
create table t1 (
a varchar(112) charset utf8 collate utf8_bin not null,
primary key (a)
) select 'test' as a ;
#--warning 1364
show create table t1;
drop table t1;
#
# BUG#14480: assert failure in CREATE ... SELECT because of wrong
# calculation of number of NULLs.
#
CREATE TABLE t2 (
a int(11) default NULL
);
insert into t2 values(111);
#--warning 1364
create table t1 (
a varchar(12) charset utf8 collate utf8_bin not null,
b int not null, primary key (a)
) select a, 1 as b from t2 ;
show create table t1;
drop table t1;
#--warning 1364
create table t1 (
a varchar(12) charset utf8 collate utf8_bin not null,
b int not null, primary key (a)
) select a, 1 as c from t2 ;
show create table t1;
drop table t1;
#--warning 1364
create table t1 (
a varchar(12) charset utf8 collate utf8_bin not null,
b int null, primary key (a)
) select a, 1 as c from t2 ;
show create table t1;
drop table t1;
#--warning 1364
create table t1 (
a varchar(12) charset utf8 collate utf8_bin not null,
b int not null, primary key (a)
) select 'a' as a , 1 as b from t2 ;
show create table t1;
drop table t1;
#--warning 1364
create table t1 (
a varchar(12) charset utf8 collate utf8_bin,
b int not null, primary key (a)
) select 'a' as a , 1 as b from t2 ;
show create table t1;
drop table t1, t2;
create table t1 (
a1 int not null,
a2 int, a3 int, a4 int, a5 int, a6 int, a7 int, a8 int, a9 int
);
insert into t1 values (1,1,1, 1,1,1, 1,1,1);
#--warning 1364
create table t2 (
a1 varchar(12) charset utf8 collate utf8_bin not null,
a2 int, a3 int, a4 int, a5 int, a6 int, a7 int, a8 int, a9 int,
primary key (a1)
) select a1,a2,a3,a4,a5,a6,a7,a8,a9 from t1 ;
drop table t2;
#--warning 1364
create table t2 (
a1 varchar(12) charset utf8 collate utf8_bin,
a2 int, a3 int, a4 int, a5 int, a6 int, a7 int, a8 int, a9 int
) select a1,a2,a3,a4,a5,a6,a7,a8,a9 from t1;
drop table t1, t2;
#--warning 1364
create table t1 (
a1 int, a2 int, a3 int, a4 int, a5 int, a6 int, a7 int, a8 int, a9 int
);
insert into t1 values (1,1,1, 1,1,1, 1,1,1);
#--warning 1364
create table t2 (
a1 varchar(12) charset utf8 collate utf8_bin not null,
a2 int, a3 int, a4 int, a5 int, a6 int, a7 int, a8 int, a9 int,
primary key (a1)
) select a1,a2,a3,a4,a5,a6,a7,a8,a9 from t1 ;
# Test the default value
drop table t2;
create table t2 ( a int default 3, b int default 3)
select a1,a2 from t1;
show create table t2;
drop table t1, t2;
#
# Bug #15316 SET value having comma not correctly handled
#
--error 1367
create table t1(a set("a,b","c,d") not null);
# End of 4.1 tests
#
# Bug #14155: Maximum value of MAX_ROWS handled incorrectly on 64-bit
# platforms
#
create table t1 (i int) engine=myisam max_rows=100000000000;
show create table t1;
alter table t1 max_rows=100;
show create table t1;
alter table t1 max_rows=100000000000;
show create table t1;
drop table t1;
#
# Tests for errors happening at various stages of CREATE TABLES ... SELECT
#
# (Also checks that it behaves atomically in the sense that in case
# of error it is automatically dropped if it has not existed before.)
#
# Error during open_and_lock_tables() of tables
--error ER_NO_SUCH_TABLE
create table t1 select * from t2;
# Rather special error which also caught during open tables pahse
--error ER_UPDATE_TABLE_USED
create table t1 select * from t1;
# Error which happens before select_create::prepare()
--error ER_CANT_AGGREGATE_2COLLATIONS
create table t1 select coalesce('a' collate latin1_swedish_ci,'b' collate latin1_bin);
# Error during table creation
--error ER_KEY_COLUMN_DOES_NOT_EXITS
create table t1 (primary key(a)) select "b" as b;
# Error in select_create::prepare() which is not related to table creation
create table t1 (a int);
--error ER_WRONG_VALUE_COUNT_ON_ROW
create table if not exists t1 select 1 as a, 2 as b;
drop table t1;
# Finally error which happens during insert
--error ER_DUP_ENTRY
create table t1 (primary key (a)) (select 1 as a) union all (select 1 as a);
# What happens if table already exists ?
create table t1 (i int);
--error ER_TABLE_EXISTS_ERROR
create table t1 select 1 as i;
create table if not exists t1 select 1 as i;
select * from t1;
# Error before select_create::prepare()
--error ER_CANT_AGGREGATE_2COLLATIONS
create table t1 select coalesce('a' collate latin1_swedish_ci,'b' collate latin1_bin);
select * from t1;
# Error which happens during insertion of rows
alter table t1 add primary key (i);
--error ER_DUP_ENTRY
create table if not exists t1 (select 2 as i) union all (select 2 as i);
select * from t1;
drop table t1;
# Base vs temporary tables dillema (a.k.a. bug#24508 "Inconsistent
# results of CREATE TABLE ... SELECT when temporary table exists").
# In this situation we either have to create non-temporary table and
# insert data in it or insert data in temporary table without creation
# of permanent table. Since currently temporary tables always shadow
# permanent tables we adopt second approach.
create temporary table t1 (j int);
create table if not exists t1 select 1;
select * from t1;
drop temporary table t1;
--error ER_NO_SUCH_TABLE
select * from t1;
--error ER_BAD_TABLE_ERROR
drop table t1;
#
# CREATE TABLE ... SELECT and LOCK TABLES
#
# There is little sense in using CREATE TABLE ... SELECT under
# LOCK TABLES as it mostly does not work. At least we check that
# the server doesn't crash, hang and produces sensible errors.
# Includes test for bug #20662 "Infinite loop in CREATE TABLE
# IF NOT EXISTS ... SELECT with locked tables".
create table t1 (i int);
insert into t1 values (1), (2);
lock tables t1 read;
--error ER_TABLE_NOT_LOCKED
create table t2 select * from t1;
--error ER_TABLE_NOT_LOCKED
create table if not exists t2 select * from t1;
unlock tables;
create table t2 (j int);
lock tables t1 read;
--error ER_TABLE_NOT_LOCKED
create table t2 select * from t1;
# This should not be ever allowed as it will undermine
# lock-all-at-once approach
--error ER_TABLE_NOT_LOCKED
create table if not exists t2 select * from t1;
unlock tables;
lock table t1 read, t2 read;
--error ER_TABLE_NOT_LOCKED_FOR_WRITE
create table t2 select * from t1;
--error ER_TABLE_NOT_LOCKED_FOR_WRITE
create table if not exists t2 select * from t1;
unlock tables;
lock table t1 read, t2 write;
--error ER_TABLE_EXISTS_ERROR
create table t2 select * from t1;
# This is the only case which really works.
create table if not exists t2 select * from t1;
select * from t1;
unlock tables;
drop table t2;
# OTOH CREATE TEMPORARY TABLE ... SELECT should work
# well under LOCK TABLES.
lock tables t1 read;
create temporary table t2 select * from t1;
create temporary table if not exists t2 select * from t1;
select * from t2;
unlock tables;
drop table t1, t2;
#
# Bug#21772: can not name a column 'upgrade' when create a table
#
create table t1 (upgrade int);
drop table t1;
--echo End of 5.0 tests