path: root/mysql-test/main/alter_table.test

--source include/have_innodb.inc
#
# Test of alter table
#
--disable_warnings
drop table if exists t1,t2;
drop database if exists mysqltest;
--enable_warnings
set @save_max_allowed_packet=@@global.max_allowed_packet;

create table t1 (
col1 int not null auto_increment primary key,
col2 varchar(30) not null,
col3 varchar (20) not null,
col4 varchar(4) not null,
col5 enum('PENDING', 'ACTIVE', 'DISABLED') not null,
col6 int not null, to_be_deleted int);
insert into t1 values (2,4,3,5,"PENDING",1,7);
alter table t1
add column col4_5 varchar(20) not null after col4,
add column col7 varchar(30) not null after col5,
add column col8 datetime not null, drop column to_be_deleted,
change column col2 fourth varchar(30) not null after col3,
modify column col6 int not null first;
select * from t1;
drop table t1;

create table t1 (bandID MEDIUMINT UNSIGNED NOT NULL PRIMARY KEY, payoutID SMALLINT UNSIGNED NOT NULL);
insert into t1 (bandID,payoutID) VALUES (1,6),(2,6),(3,4),(4,9),(5,10),(6,1),(7,12),(8,12);
alter table t1 add column new_col int, order by payoutid,bandid;
select * from t1;
alter table t1 order by bandid,payoutid;
select * from t1;
drop table t1;

# Check that pack_keys and dynamic length rows are not forced. 

CREATE TABLE t1 (
GROUP_ID int(10) unsigned DEFAULT '0' NOT NULL,
LANG_ID smallint(5) unsigned DEFAULT '0' NOT NULL,
NAME varchar(80) DEFAULT '' NOT NULL,
PRIMARY KEY (GROUP_ID,LANG_ID),
KEY NAME (NAME));
#show table status like "t1";
ALTER TABLE t1 CHANGE NAME NAME CHAR(80) not null;
--replace_column 8 #
SHOW FULL COLUMNS FROM t1;
DROP TABLE t1;

#
# Test of ALTER TABLE ... ORDER BY
#

create table t1 (n int);
insert into t1 values(9),(3),(12),(10);
alter table t1 order by n;
select * from t1;
drop table t1;

CREATE TABLE t1 (
  id int(11) unsigned NOT NULL default '0',
  category_id tinyint(4) unsigned NOT NULL default '0',
  type_id tinyint(4) unsigned NOT NULL default '0',
  body text NOT NULL,
  user_id int(11) unsigned NOT NULL default '0',
  status enum('new','old') NOT NULL default 'new',
  PRIMARY KEY (id)
) ENGINE=MyISAM;

ALTER TABLE t1 ORDER BY t1.id, t1.status, t1.type_id, t1.user_id, t1.body;
DROP TABLE t1;

#
# The following combination found a hang-bug in MyISAM
#

CREATE TABLE t1 (AnamneseId int(10) unsigned NOT NULL auto_increment,B BLOB,PRIMARY KEY (AnamneseId)) engine=myisam;
insert into t1 values (null,"hello");
LOCK TABLES t1 WRITE;
ALTER TABLE t1 ADD Column new_col int not null;
UNLOCK TABLES;
OPTIMIZE TABLE t1;
DROP TABLE t1;

#
# Drop and add an auto_increment column
#

create table t1 (i int unsigned not null auto_increment primary key);
insert into t1 values (null),(null),(null),(null);
alter table t1 drop i,add i int unsigned not null auto_increment, drop primary key, add primary key (i);
select * from t1;
drop table t1;

#
# Bug #2628: 'alter table t1 rename mysqltest.t1' silently drops mysqltest.t1 
# if it exists
#
create table t1 (name char(15));
insert into t1 (name) values ("current");
create database mysqltest;
create table mysqltest.t1 (name char(15));
insert into mysqltest.t1 (name) values ("mysqltest");
select * from t1;
select * from mysqltest.t1;
--error ER_TABLE_EXISTS_ERROR
alter table t1 rename mysqltest.t1;
select * from t1;
select * from mysqltest.t1;
drop table t1;
drop database mysqltest;

#
# ALTER TABLE ... ENABLE/DISABLE KEYS

create table t1 (n1 int not null, n2 int, n3 int, n4 float,
                unique(n1),
                key (n1, n2, n3, n4),
                key (n2, n3, n4, n1),
                key (n3, n4, n1, n2),
                key (n4, n1, n2, n3) );
alter table t1 disable keys;
show keys from t1;
#let $1=10000;
let $1=10;
--disable_query_log
begin;
while ($1)
{
 eval insert into t1 values($1,RAND()*1000,RAND()*1000,RAND());
 dec $1;
}
commit;
--enable_query_log
alter table t1 enable keys;
show keys from t1;
drop table t1;

#
# Alter table and rename
#

create table t1 (i int unsigned not null auto_increment primary key);
alter table t1 rename t2;
alter table t2 rename t1, add c char(10) comment "no comment";
show columns from t1;
drop table t1;

# implicit analyze

create table t1 (a int, b int);
let $1=100;
--disable_query_log
begin;
while ($1)
{
 eval insert into t1 values(1,$1), (2,$1), (3, $1);
 dec $1;
}
commit;
--enable_query_log
alter table t1 add unique (a,b), add key (b);
show keys from t1;
analyze table t1;
show keys from t1;
drop table t1;

#
# Test of ALTER TABLE DELAYED
#

CREATE TABLE t1 (i int(10), index(i) ) ENGINE=MyISAM;
ALTER TABLE t1 DISABLE KEYS;
INSERT DELAYED INTO t1 VALUES(1),(2),(3);
ALTER TABLE t1 ENABLE KEYS;
drop table t1;

#
# Test ALTER TABLE ENABLE/DISABLE keys when things are locked
#

CREATE TABLE t1 (
  Host varchar(16) binary NOT NULL default '',
  User varchar(16) binary NOT NULL default '',
  PRIMARY KEY  (Host,User)
) ENGINE=MyISAM;

ALTER TABLE t1 DISABLE KEYS;
LOCK TABLES t1 WRITE;
INSERT INTO t1 VALUES ('localhost','root'),('localhost',''),('games','monty');
SHOW INDEX FROM t1;
ALTER TABLE t1 ENABLE KEYS;
UNLOCK TABLES;
CHECK TABLES t1;
DROP TABLE t1;

#
# Test with two keys
#

CREATE TABLE t1 (
  Host varchar(16) binary NOT NULL default '',
  User varchar(16) binary NOT NULL default '',
  PRIMARY KEY  (Host,User),
  KEY  (Host)
) ENGINE=MyISAM;

ALTER TABLE t1 DISABLE KEYS;
SHOW INDEX FROM t1;
LOCK TABLES t1 WRITE;
INSERT INTO t1 VALUES ('localhost','root'),('localhost','');
SHOW INDEX FROM t1;
ALTER TABLE t1 ENABLE KEYS;
SHOW INDEX FROM t1;
UNLOCK TABLES;
CHECK TABLES t1;

# Test RENAME with LOCK TABLES
LOCK TABLES t1 WRITE;
ALTER TABLE t1 RENAME t2;
UNLOCK TABLES;
select * from t2;
DROP TABLE t2;

#
# Test disable keys with locking
#
CREATE TABLE t1 (
  Host varchar(16) binary NOT NULL default '',
  User varchar(16) binary NOT NULL default '',
  PRIMARY KEY  (Host,User),
  KEY  (Host)
) ENGINE=MyISAM;

LOCK TABLES t1 WRITE;
ALTER TABLE t1 DISABLE KEYS;
SHOW INDEX FROM t1;
DROP TABLE t1;

#
# BUG#4717 - check for valid table names
#
create table t1 (a int);
--error ER_WRONG_TABLE_NAME
alter table t1 rename to ``;
--error ER_WRONG_TABLE_NAME
rename table t1 to ``;
drop table t1;

#
# BUG#6236 - ALTER TABLE MODIFY should set implicit NOT NULL on PK columns
#
drop table if exists t1, t2;
create table t1 ( a varchar(10) not null primary key ) engine=myisam;
create table t2 ( a varchar(10) not null primary key ) engine=merge union=(t1);
flush tables;
alter table t1 modify a varchar(10);
show create table t2;
flush tables;
alter table t1 modify a varchar(10) not null;
show create table t2;
drop table if exists t1, t2;

# The following is also part of bug #6236 (CREATE TABLE didn't properly count
# not null columns for primary keys)

create table t1 (a int, b int, c int, d int, e int, f int, g int, h int,i int, primary key (a,b,c,d,e,f,g,i,h)) engine=MyISAM;
insert ignore into t1 (a) values(1);
--replace_column 7 X 8 X 9 X 10 X 11 X 12 X 13 X 14 X 19 X
show table status like 't1';
alter table t1 modify a int;
--replace_column 7 X 8 X 9 X 10 X 11 X 12 X 13 X 14 X 19 X
show table status like 't1';
drop table t1;
create table t1 (a int not null, b int not null, c int not null, d int not null, e int not null, f int not null, g int not null, h int not null,i int not null, primary key (a,b,c,d,e,f,g,i,h)) engine=MyISAM;
insert ignore into t1 (a) values(1);
--replace_column 7 X 8 X 9 X 10 X 11 X 12 X 13 X 14 X 19 X
show table status like 't1';
drop table t1;

#
# Test that data get converted when character set is changed
# Test that data doesn't get converted when src or dst is BINARY/BLOB
#
set names koi8r;
create table t1 (a char(10) character set koi8r);
insert into t1 values ('ÔÅÓÔ');
select a,hex(a) from t1;
alter table t1 change a a char(10) character set cp1251;
select a,hex(a) from t1;
alter table t1 change a a binary(4);
select a,hex(a) from t1;
alter table t1 change a a char(10) character set cp1251;
select a,hex(a) from t1;
alter table t1 change a a char(10) character set koi8r;
select a,hex(a) from t1;
alter table t1 change a a varchar(10) character set cp1251;
select a,hex(a) from t1;
alter table t1 change a a char(10) character set koi8r;
select a,hex(a) from t1;
alter table t1 change a a text character set cp1251;
select a,hex(a) from t1;
alter table t1 change a a char(10) character set koi8r;
select a,hex(a) from t1;
delete from t1;

#
# Test ALTER TABLE .. CHARACTER SET ..
#
show create table t1;
alter table t1 DEFAULT CHARACTER SET latin1;
show create table t1;
alter table t1 CONVERT TO CHARACTER SET latin1;
show create table t1;
alter table t1 DEFAULT CHARACTER SET cp1251;
show create table t1;

drop table t1;

#
# Bug#2821
# Test that table CHARACTER SET does not affect blobs
#
create table t1 (myblob longblob,mytext longtext) 
default charset latin1 collate latin1_general_cs;
show create table t1;
alter table t1 character set latin2;
show create table t1;
drop table t1;

#
# Bug 2361 (Don't drop UNIQUE with DROP PRIMARY KEY)
#

CREATE TABLE t1 (a int PRIMARY KEY, b INT UNIQUE);
ALTER TABLE t1 DROP PRIMARY KEY;
SHOW CREATE TABLE t1;
--error ER_CANT_DROP_FIELD_OR_KEY
ALTER TABLE t1 DROP PRIMARY KEY;
DROP TABLE t1;

# BUG#3899
create table t1 (a int, b int, key(a));
insert into t1 values (1,1), (2,2);
--error ER_CANT_DROP_FIELD_OR_KEY
alter table t1 drop key no_such_key;
alter table t1 drop key a;
drop table t1;

#
# BUG 12207 alter table ... discard table space on MyISAM table causes ERROR 2013 (HY000)
#
# Some platforms (Mac OS X, Windows) will send the error message using small letters.
CREATE TABLE T12207(a int) ENGINE=MYISAM;
--replace_result t12207 T12207
--error ER_ILLEGAL_HA
ALTER TABLE T12207 DISCARD TABLESPACE;
DROP TABLE T12207;

#
# Bug #6479  ALTER TABLE ... changing charset fails for TEXT columns
#
# The column's character set was changed but the actual data was not
# modified. In other words, the values were reinterpreted
# as UTF8 instead of being converted.
create table t1 (a text) character set koi8r;
insert into t1 values (_koi8r'ÔÅÓÔ');
select hex(a) from t1;
alter table t1 convert to character set cp1251;
select hex(a) from t1;
drop table t1;

#
# Test for bug #7884 "Able to add invalid unique index on TIMESTAMP prefix"
# MySQL should not think that packed field with non-zero decimals is
# geometry field and allow to create prefix index which is
# shorter than packed field length.
#
create table t1 ( a timestamp );
--error ER_WRONG_SUB_KEY
alter table t1 add unique ( a(1) );
drop table t1;

#
# Bug #24395: ALTER TABLE DISABLE KEYS doesn't work when modifying the table
#
# This problem happens if the data change is compatible.
# Changing to the same type is compatible for example.
#
--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (a int, key(a));
show indexes from t1;
--echo "this used not to disable the index"
alter table t1 modify a int, disable keys;
show indexes from t1;

alter table t1 enable keys;
show indexes from t1;

alter table t1 modify a bigint, disable keys;
show indexes from t1;

alter table t1 enable keys;
show indexes from t1;

alter table t1 add b char(10), disable keys;
show indexes from t1;

alter table t1 add c decimal(10,2), enable keys;
show indexes from t1;

--echo "this however did"
alter table t1 disable keys;
show indexes from t1;

desc t1;

alter table t1 add d decimal(15,5);
--echo "The key should still be disabled"
show indexes from t1;

drop table t1;

--echo "Now will test with one unique index"
create table t1(a int, b char(10), unique(a));
show indexes from t1;
alter table t1 disable keys;
show indexes from t1;
alter table t1 enable keys;

--echo "If no copy on noop change, this won't touch the data file"
--echo "Unique index, no change"
alter table t1 modify a int, disable keys;
show indexes from t1;

--echo "Change the type implying data copy"
--echo "Unique index, no change"
alter table t1 modify a bigint, disable keys;
show indexes from t1;

alter table t1 modify a bigint;
show indexes from t1;

alter table t1 modify a int;
show indexes from t1;

drop table t1;

--echo "Now will test with one unique and one non-unique index"
create table t1(a int, b char(10), unique(a), key(b));
show indexes from t1;
alter table t1 disable keys;
show indexes from t1;
alter table t1 enable keys;


--echo "If no copy on noop change, this won't touch the data file"
--echo "The non-unique index will be disabled"
alter table t1 modify a int, disable keys;
show indexes from t1;
alter table t1 enable keys;
show indexes from t1;

--echo "Change the type implying data copy"
--echo "The non-unique index will be disabled"
alter table t1 modify a bigint, disable keys;
show indexes from t1;

--echo "Change again the type, but leave the indexes as_is"
alter table t1 modify a int;
show indexes from t1;
--echo "Try the same. When data is no copied on similar tables, this is noop"
alter table t1 modify a int;
show indexes from t1;

drop table t1;


#
# Bug#11493 - Alter table rename to default database does not work without
#             db name qualifying
#
create database mysqltest;
create table t1 (c1 int);
# Move table to other database.
alter table t1 rename mysqltest.t1;
# Assure that it has moved.
--error ER_BAD_TABLE_ERROR
drop table t1;
# Move table back.
alter table mysqltest.t1 rename t1;
# Assure that it is back.
drop table t1;
# Now test for correct message if no database is selected.
# Create t1 in 'test'.
create table t1 (c1 int);
# Change to other db.
use mysqltest;
# Drop the current db. This de-selects any db.
drop database mysqltest;
# Now test for correct message.
--error ER_NO_DB_ERROR
alter table test.t1 rename t1;
# Check that explicit qualifying works even with no selected db.
alter table test.t1 rename test.t1;
# Go back to standard 'test' db.
use test;
drop table t1;

#
# BUG#23404 - ROW_FORMAT=FIXED option is lost is an index is added to the
# table
#
CREATE TABLE t1(a INT) ROW_FORMAT=FIXED;
CREATE INDEX i1 ON t1(a);
SHOW CREATE TABLE t1;
DROP INDEX i1 ON t1;
SHOW CREATE TABLE t1;
DROP TABLE t1;

#
# Bug#24219 - ALTER TABLE ... RENAME TO ... , DISABLE KEYS leads to crash
#
--disable_warnings
DROP TABLE IF EXISTS bug24219;
DROP TABLE IF EXISTS bug24219_2;
--enable_warnings

CREATE TABLE bug24219 (a INT, INDEX(a));

SHOW INDEX FROM bug24219;

ALTER TABLE bug24219 RENAME TO bug24219_2, DISABLE KEYS;

SHOW INDEX FROM bug24219_2;

DROP TABLE bug24219_2;

#
# Bug#24562 (ALTER TABLE ... ORDER BY ... with complex expression asserts)
#

--disable_warnings
drop table if exists table_24562;
--enable_warnings

create table table_24562(
  section int,
  subsection int,
  title varchar(50));

insert into table_24562 values
(1, 0, "Introduction"),
(1, 1, "Authors"),
(1, 2, "Acknowledgements"),
(2, 0, "Basics"),
(2, 1, "Syntax"),
(2, 2, "Client"),
(2, 3, "Server"),
(3, 0, "Intermediate"),
(3, 1, "Complex queries"),
(3, 2, "Stored Procedures"),
(3, 3, "Stored Functions"),
(4, 0, "Advanced"),
(4, 1, "Replication"),
(4, 2, "Load balancing"),
(4, 3, "High availability"),
(5, 0, "Conclusion");

select * from table_24562;

alter table table_24562 add column reviewer varchar(20),
order by title;

select * from table_24562;

update table_24562 set reviewer="Me" where section=2;
update table_24562 set reviewer="You" where section=3;

alter table table_24562
order by section ASC, subsection DESC;

select * from table_24562;

alter table table_24562
order by table_24562.subsection ASC, table_24562.section DESC;

select * from table_24562;

--error ER_PARSE_ERROR
alter table table_24562 order by 12;
--error ER_PARSE_ERROR
alter table table_24562 order by (section + 12);
--error ER_PARSE_ERROR
alter table table_24562 order by length(title);
--error ER_PARSE_ERROR
alter table table_24562 order by (select 12 from dual);

--error ER_BAD_FIELD_ERROR
alter table table_24562 order by no_such_col;

drop table table_24562;

# End of 4.1 tests

#
# Bug #14693 (ALTER SET DEFAULT doesn't work)
#

create table t1 (mycol int(10) not null);
alter table t1 alter column mycol set default 0;
desc t1;
drop table t1;

#
# Bug#25262 Auto Increment lost when changing Engine type
#

create table t1(id int(8) primary key auto_increment) engine=heap;

insert into t1 values (null);
insert into t1 values (null);

select * from t1;

# Set auto increment to 50
alter table t1 auto_increment = 50;

# Alter to myisam
alter table t1 engine = myisam;

# This insert should get id 50
insert into t1 values (null);
select * from t1;

# Alter to heap again
alter table t1 engine = heap;
insert into t1 values (null);
select * from t1;

drop table t1;

#
# Bug#27507: Wrong DATETIME value was allowed by ALTER TABLE in the
#            NO_ZERO_DATE mode.
#
set @orig_sql_mode = @@sql_mode;
set sql_mode="no_zero_date";
create table t1(f1 int);
alter table t1 add column f2 datetime not null, add column f21 date not null;
insert into t1 values(1,'2000-01-01','2000-01-01');
--error 1292
alter table t1 add column f3 datetime not null;
--error 1292
alter table t1 add column f3 date not null;
--error 1292
alter table t1 add column f4 datetime not null default '2002-02-02',
  add column f41 date not null;
alter table t1 add column f4 datetime not null default '2002-02-02',
  add column f41 date not null default '2002-02-02';
select * from t1;
drop table t1;
set sql_mode= @orig_sql_mode;

#
# Some additional tests for new, faster alter table.  Note that most of the
# whole alter table code is being tested all around the test suite already.
#

create table t1 (v varchar(32));
insert into t1 values ('def'),('abc'),('hij'),('3r4f');
select * from t1;
# Fast alter, no copy performed
alter table t1 change v v2 varchar(32);
select * from t1;
# Fast alter, no copy performed
alter table t1 change v2 v varchar(64);
select * from t1;
update t1 set v = 'lmn' where v = 'hij';
select * from t1;
# Regular alter table
alter table t1 add i int auto_increment not null primary key first;
select * from t1;
update t1 set i=5 where i=3;
select * from t1;
alter table t1 change i i bigint;
select * from t1;
alter table t1 add unique key (i, v);
select * from t1 where i between 2 and 4 and v in ('def','3r4f','lmn');
drop table t1;

#
# Bug#6073 "ALTER table minor glich": ALTER TABLE complains that an index
# without # prefix is not allowed for TEXT columns, while index
# is defined with prefix.
# 
create table t1 (t varchar(255) default null, key t (t(80)))
engine=myisam default charset=latin1;
alter table t1 change t t text;
drop table t1;

#
# Bug #26794: Adding an index with a prefix on a SPATIAL type breaks ALTER
# TABLE
#
CREATE TABLE t1 (a varchar(500));

ALTER TABLE t1 ADD b GEOMETRY NOT NULL, ADD SPATIAL INDEX(b);
SHOW CREATE TABLE t1;
ALTER TABLE t1 ADD KEY(b(50));
SHOW CREATE TABLE t1;

ALTER TABLE t1 ADD c POINT;
SHOW CREATE TABLE t1;

--error ER_WRONG_SUB_KEY
CREATE TABLE t2 (a INT, KEY (a(20)));

ALTER TABLE t1 ADD d INT;
--error ER_WRONG_SUB_KEY
ALTER TABLE t1 ADD KEY (d(20));

# the 5.1 part of the test
--error ER_WRONG_SUB_KEY
ALTER TABLE t1 ADD e GEOMETRY NOT NULL, ADD SPATIAL KEY (e(30));

DROP TABLE t1;

#
# Bug#18038  MySQL server corrupts binary columns data
#

CREATE TABLE t1 (s CHAR(8) BINARY);
INSERT INTO t1 VALUES ('test');
SELECT LENGTH(s) FROM t1;
ALTER TABLE t1 MODIFY s CHAR(10) BINARY;
SELECT LENGTH(s) FROM t1;
DROP TABLE t1;

CREATE TABLE t1 (s BINARY(8));
INSERT INTO t1 VALUES ('test');
SELECT LENGTH(s) FROM t1;
SELECT HEX(s) FROM t1;
ALTER TABLE t1 MODIFY s BINARY(10);
SELECT HEX(s) FROM t1;
SELECT LENGTH(s) FROM t1;
DROP TABLE t1;

#
# Bug#19386: Multiple alter causes crashed table
# The trailing column would get corrupted data, or server could not even read
# it.
#

CREATE TABLE t1 (v VARCHAR(3), b INT);
INSERT INTO t1 VALUES ('abc', 5);
SELECT * FROM t1;
ALTER TABLE t1 MODIFY COLUMN v VARCHAR(4);
SELECT * FROM t1;
DROP TABLE t1;


#
# Bug#31291 ALTER TABLE CONVERT TO CHARACTER SET does not change some data types
#
create table t1 (a tinytext character set latin1);
alter table t1 convert to character set utf8;
show create table t1;
drop table t1;
create table t1 (a mediumtext character set latin1);
alter table t1 convert to character set utf8;
show create table t1;
drop table t1;

--echo End of 5.0 tests

#
# Extended test coverage for ALTER TABLE behaviour under LOCK TABLES
# It should be consistent across all platforms and for all engines
# (Before 5.1 this was not true as behavior was different between 
# Unix/Windows and transactional/non-transactional tables).
# See also innodb_mysql.test
#
--disable_warnings
drop table if exists t1, t2, t3;
--enable_warnings
create table t1 (i int);
create table t3 (j int);
insert into t1 values ();
insert into t3 values ();
# Table which is altered under LOCK TABLES it should stay in list of locked
# tables and be available after alter takes place unless ALTER contains RENAME
# clause. We should see the new definition of table, of course.
lock table t1 write, t3 read;
# Example of so-called 'fast' ALTER TABLE
alter table t1 modify i int default 1;
insert into t1 values ();
select * from t1;
# And now full-blown ALTER TABLE
alter table t1 change i c char(10) default "Two";
insert into t1 values ();
select * from t1;
# If table is renamed then it should be removed from the list
# of locked tables. 'Fast' ALTER TABLE with RENAME clause:
alter table t1 modify c char(10) default "Three", rename to t2;
--error ER_TABLE_NOT_LOCKED
select * from t1;
--error ER_TABLE_NOT_LOCKED
select * from t2;
select * from t3;
unlock tables;
insert into t2 values ();
select * from t2;
lock table t2 write, t3 read;
# Full ALTER TABLE with RENAME
alter table t2 change c vc varchar(100) default "Four", rename to t1;
--error ER_TABLE_NOT_LOCKED
select * from t1;
--error ER_TABLE_NOT_LOCKED
select * from t2;
select * from t3;
unlock tables;
insert into t1 values ();
select * from t1;
drop tables t1, t3;


#
# Bug#18775 - Temporary table from alter table visible to other threads
#
# Check if special characters work and duplicates are detected.
--disable_warnings
DROP TABLE IF EXISTS `t+1`, `t+2`;
--enable_warnings
CREATE TABLE `t+1` (c1 INT);
ALTER TABLE  `t+1` RENAME `t+2`;
CREATE TABLE `t+1` (c1 INT);
--error ER_TABLE_EXISTS_ERROR
ALTER TABLE  `t+1` RENAME `t+2`;
DROP TABLE   `t+1`, `t+2`;
#
# Same for temporary tables though these names do not become file names.
CREATE TEMPORARY TABLE `tt+1` (c1 INT);
ALTER TABLE  `tt+1` RENAME `tt+2`;
CREATE TEMPORARY TABLE `tt+1` (c1 INT);
--error ER_TABLE_EXISTS_ERROR
ALTER TABLE  `tt+1` RENAME `tt+2`;
SHOW CREATE TABLE `tt+1`;
SHOW CREATE TABLE `tt+2`;
DROP TABLE   `tt+1`, `tt+2`;
#
# Check if special characters as in tmp_file_prefix work.
CREATE TABLE `#sql1` (c1 INT);
CREATE TABLE `@0023sql2` (c1 INT);
SHOW TABLES;
RENAME TABLE `#sql1`     TO `@0023sql1`;
RENAME TABLE `@0023sql2` TO `#sql2`;
SHOW TABLES;
ALTER TABLE `@0023sql1`  RENAME `#sql-1`;
ALTER TABLE `#sql2`      RENAME `@0023sql-2`;
SHOW TABLES;
INSERT INTO `#sql-1`     VALUES (1);
INSERT INTO `@0023sql-2` VALUES (2);
DROP TABLE `#sql-1`, `@0023sql-2`;
#
# Same for temporary tables though these names do not become file names.
CREATE TEMPORARY TABLE `#sql1` (c1 INT);
CREATE TEMPORARY TABLE `@0023sql2` (c1 INT);
SHOW TABLES;
ALTER TABLE `#sql1`      RENAME `@0023sql1`;
ALTER TABLE `@0023sql2`  RENAME `#sql2`;
SHOW TABLES;
INSERT INTO `#sql2`      VALUES (1);
INSERT INTO `@0023sql1`  VALUES (2);
SHOW CREATE TABLE `#sql2`;
SHOW CREATE TABLE `@0023sql1`;
DROP TABLE `#sql2`, `@0023sql1`;

#
# Bug #22369: Alter table rename combined with other alterations causes lost tables
#
# This problem happens if the data change is compatible.
# Changing to the same type is compatible for example.
#
--disable_warnings
DROP TABLE IF EXISTS t1;
DROP TABLE IF EXISTS t2;
--enable_warnings
CREATE TABLE t1 (
  int_field INTEGER UNSIGNED NOT NULL,
  char_field CHAR(10),
  INDEX(`int_field`)
);

DESCRIBE t1;

SHOW INDEXES FROM t1;

INSERT INTO t1 VALUES (1, "edno"), (1, "edno"), (2, "dve"), (3, "tri"), (5, "pet"); 
--echo "Non-copy data change - new frm, but old data and index files"
ALTER TABLE t1
  CHANGE int_field unsigned_int_field INTEGER UNSIGNED NOT NULL,
  RENAME t2;

--error ER_NO_SUCH_TABLE
SELECT * FROM t1 ORDER BY int_field;
SELECT * FROM t2 ORDER BY unsigned_int_field;
DESCRIBE t2;
DESCRIBE t2;
ALTER TABLE t2 MODIFY unsigned_int_field BIGINT UNSIGNED NOT NULL;
DESCRIBE t2;

DROP TABLE t2;

#
# Bug#28427: Columns were renamed instead of moving by ALTER TABLE.
#
CREATE TABLE t1 (f1 INT, f2 INT, f3 INT);
INSERT INTO t1 VALUES (1, 2, NULL);
SELECT * FROM t1;
ALTER TABLE t1 MODIFY COLUMN f3 INT AFTER f1;
SELECT * FROM t1;
ALTER TABLE t1 MODIFY COLUMN f3 INT AFTER f2;
SELECT * FROM t1;
DROP TABLE t1;

#
# BUG#29957 - alter_table.test fails
#
create table t1 (c char(10) default "Two");
lock table t1 write;
insert into t1 values ();
alter table t1 modify c char(10) default "Three";
unlock tables;
select * from t1;
check table t1;
drop table t1;

#
# Bug#33873: Fast ALTER TABLE doesn't work with multibyte character sets
#

--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
CREATE TABLE t1 (id int, c int) character set latin1;
INSERT INTO t1 VALUES (1,1);
--enable_info
ALTER TABLE t1 CHANGE c d int;
ALTER TABLE t1 CHANGE d c int;
ALTER TABLE t1 MODIFY c VARCHAR(10);
ALTER TABLE t1 CHANGE c d varchar(10);
ALTER TABLE t1 CHANGE d c varchar(10);
--disable_info
DROP TABLE t1;

--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
CREATE TABLE t1 (id int, c int) character set utf8;
INSERT INTO t1 VALUES (1,1);
--enable_info
ALTER TABLE t1 CHANGE c d int;
ALTER TABLE t1 CHANGE d c int;
ALTER TABLE t1 MODIFY c VARCHAR(10);
ALTER TABLE t1 CHANGE c d varchar(10);
ALTER TABLE t1 CHANGE d c varchar(10);
--disable_info
DROP TABLE t1;

#
# Bug#39372 "Smart" ALTER TABLE not so smart after all.
#
create table t1(f1 int not null, f2 int not null, key  (f1), key (f2));
let $count= 50;
--disable_query_log
begin;
while ($count)
{
  EVAL insert into t1 values (1,1),(1,1),(1,1),(1,1),(1,1);
  EVAL insert into t1 values (2,2),(2,2),(2,2),(2,2),(2,2);
  dec $count ;
}
commit;
--enable_query_log

select index_length into @unpaked_keys_size from
information_schema.tables where table_name='t1';
alter table t1 pack_keys=1;
select index_length into @paked_keys_size from
information_schema.tables where table_name='t1';
select (@unpaked_keys_size > @paked_keys_size);

select max_data_length into @orig_max_data_length from
information_schema.tables where table_name='t1';
alter table t1 max_rows=100;
select max_data_length into @changed_max_data_length from
information_schema.tables where table_name='t1';
select (@orig_max_data_length > @changed_max_data_length);

drop table t1;

#
# Bug #23113: Different behavior on altering ENUM fields between 5.0 and 5.1
#
CREATE TABLE t1(a INT AUTO_INCREMENT PRIMARY KEY, 
  b ENUM('a', 'b', 'c') NOT NULL);
INSERT INTO t1 (b) VALUES ('a'), ('c'), ('b'), ('b'), ('a');
ALTER TABLE t1 MODIFY b ENUM('a', 'z', 'b', 'c') NOT NULL;
SELECT * FROM t1;
DROP TABLE t1;

#
# Test for ALTER column DROP DEFAULT
#

SET @save_sql_mode=@@sql_mode;
SET sql_mode=strict_all_tables;

CREATE TABLE t1 (a int NOT NULL default 42);
INSERT INTO t1 values ();
SELECT * FROM t1;
ALTER TABLE t1 ALTER COLUMN a DROP DEFAULT;
--error 1364
INSERT INTO t1 values ();
INSERT INTO t1 (a) VALUES (11);
SELECT * FROM t1 ORDER BY a;
DROP TABLE t1;
SET @@sql_mode=@save_sql_mode;
--echo #
--echo # Bug#45567: Fast ALTER TABLE broken for enum and set
--echo #

--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings

CREATE TABLE t1 (a ENUM('a1','a2'));
INSERT INTO t1 VALUES ('a1'),('a2');
--enable_info
--echo # No copy: No modification
ALTER TABLE t1 MODIFY COLUMN a ENUM('a1','a2');
--echo # No copy: Add new enumeration to the end
ALTER TABLE t1 MODIFY COLUMN a ENUM('a1','a2','a3');
--echo # Copy: Modify and add new to the end
ALTER TABLE t1 MODIFY COLUMN a ENUM('a1','a2','xx','a5');
--echo # Copy: Remove from the end
ALTER TABLE t1 MODIFY COLUMN a ENUM('a1','a2','xx');
--echo # Copy: Add new enumeration
ALTER TABLE t1 MODIFY COLUMN a ENUM('a1','a2','a0','xx');
--echo # No copy: Add new enumerations to the end
ALTER TABLE t1 MODIFY COLUMN a ENUM('a1','a2','a0','xx','a5','a6');
--disable_info
DROP TABLE t1;

CREATE TABLE t1 (a SET('a1','a2'));
INSERT INTO t1 VALUES ('a1'),('a2');
--enable_info
--echo # No copy: No modification
ALTER TABLE t1 MODIFY COLUMN a SET('a1','a2');
--echo # No copy: Add new to the end
ALTER TABLE t1 MODIFY COLUMN a SET('a1','a2','a3');
--echo # Copy: Modify and add new to the end
ALTER TABLE t1 MODIFY COLUMN a SET('a1','a2','xx','a5');
--echo # Copy: Remove from the end
ALTER TABLE t1 MODIFY COLUMN a SET('a1','a2','xx');
--echo # Copy: Add new member
ALTER TABLE t1 MODIFY COLUMN a SET('a1','a2','a0','xx');
--echo # No copy: Add new to the end
ALTER TABLE t1 MODIFY COLUMN a SET('a1','a2','a0','xx','a5','a6');
--echo # Copy: Numerical incrase (pack lenght)
ALTER TABLE t1 MODIFY COLUMN a SET('a1','a2','a0','xx','a5','a6','a7','a8','a9','a10');
--disable_info
DROP TABLE t1;

#
# Bug#43508: Renaming timestamp or date column triggers table copy
#

CREATE TABLE t1 (f1 TIMESTAMP NULL DEFAULT NULL,
                 f2 INT(11) DEFAULT NULL) ENGINE=MYISAM DEFAULT CHARSET=utf8;

INSERT INTO t1 VALUES (NULL, NULL), ("2009-10-09 11:46:19", 2);

--echo this should affect no rows as there is no real change
--enable_info
ALTER TABLE t1 CHANGE COLUMN f1 f1_no_real_change TIMESTAMP NULL DEFAULT NULL;
--disable_info
DROP TABLE t1;


--echo #
--echo # Bug #31145: ALTER TABLE DROP COLUMN, ADD COLUMN crashes (linux) 
--echo #   or freezes (win) the server
--echo #

CREATE TABLE t1 (a TEXT, id INT, b INT);
ALTER TABLE t1 DROP COLUMN a, ADD COLUMN c TEXT FIRST;

DROP TABLE t1;


--echo #
--echo # Test for bug #12652385 - "61493: REORDERING COLUMNS TO POSITION
--echo #                           FIRST CAN CAUSE DATA TO BE CORRUPTED".
--echo #
--disable_warnings
drop table if exists t1;
--enable_warnings
--echo # Use MyISAM engine as the fact that InnoDB doesn't support
--echo # in-place ALTER TABLE in cases when columns are being renamed
--echo # hides some bugs.
create table t1 (i int, j int) engine=myisam;
insert into t1 value (1, 2);
--echo # First, test for original problem described in the bug report.
select * from t1;
--echo # Change of column order by the below ALTER TABLE statement should
--echo # affect both column names and column contents.
alter table t1 modify column j int first;
select * from t1;
--echo # Now test for similar problem with the same root.
--echo # The below ALTER TABLE should change not only the name but
--echo # also the value for the last column of the table.
alter table t1 drop column i, add column k int default 0;
select * from t1;
--echo # Clean-up.
drop table t1;


--echo End of 5.1 tests

#
# Bug #31031 ALTER TABLE regression in 5.0
#
#  The ALTER TABLE operation failed with 
#  ERROR 1089 (HY000): Incorrect sub part key; ...
#
CREATE TABLE t1(c CHAR(10), 
  i INT UNSIGNED AUTO_INCREMENT NOT NULL PRIMARY KEY);
INSERT INTO t1 VALUES('a',2),('b',4),('c',6);
ALTER TABLE t1
  DROP i,
  ADD i INT UNSIGNED NOT NULL AUTO_INCREMENT,
  AUTO_INCREMENT = 1;
DROP TABLE t1;


#
# Bug#50542 5.5.x doesn't check length of key prefixes: 
#           corruption and crash results
#
# This case is related to Bug#31031 (above)
# A statement where the index key is larger/wider than
# the column type, should cause an error
#
--error ER_WRONG_SUB_KEY
CREATE TABLE t1 (a CHAR(1), PRIMARY KEY (a(255)));

# Test other variants of creating indices
CREATE TABLE t1 (a CHAR(1));
#  ALTER TABLE
--error ER_WRONG_SUB_KEY
ALTER TABLE t1 ADD PRIMARY KEY (a(20));
--error ER_WRONG_SUB_KEY
ALTER TABLE t1 ADD KEY (a(20));
#  CREATE INDEX
--error ER_WRONG_SUB_KEY
CREATE UNIQUE INDEX i1 ON t1 (a(20));
--error ER_WRONG_SUB_KEY
CREATE INDEX i2 ON t1 (a(20));
# cleanup
DROP TABLE t1;


#
# Bug #45052    ALTER TABLE ADD COLUMN crashes server with multiple foreign key columns
#   The alter table fails if 2 or more new fields added and
#   also added a key with these fields
#
CREATE TABLE t1 (id int);
INSERT INTO t1 VALUES (1), (2);
ALTER TABLE t1 ADD COLUMN (f1 INT), ADD COLUMN (f2 INT), ADD KEY f2k(f2);
DROP TABLE t1;


--echo #
--echo # Test for bug #53820 "ALTER a MEDIUMINT column table causes full
--echo #                      table copy".
--echo #
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
CREATE TABLE t1 (a INT, b MEDIUMINT);
INSERT INTO t1 VALUES (1, 1), (2, 2);
--echo # The below ALTER should not copy table and so no rows should
--echo # be shown as affected.
--enable_info
ALTER TABLE t1 CHANGE a id INT;
--disable_info
DROP TABLE t1;


--echo #
--echo # Bug#11754461 CANNOT ALTER TABLE WHEN KEY PREFIX TOO LONG
--echo #

--disable_warnings
DROP DATABASE IF EXISTS db1;
--enable_warnings

CREATE DATABASE db1 CHARACTER SET utf8;
CREATE TABLE db1.t1 (bar TINYTEXT, KEY (bar(100)));
ALTER TABLE db1.t1 ADD baz INT;

DROP DATABASE db1;


--echo # Additional coverage for refactoring which is made as part
--echo # of fix for bug #27480 "Extend CREATE TEMPORARY TABLES privilege
--echo # to allow temp table operations".
--echo #
--echo # At some point the below test case failed on assertion.

--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings

CREATE TEMPORARY TABLE t1 (i int) ENGINE=MyISAM;

--error ER_ILLEGAL_HA
ALTER TABLE t1 DISCARD TABLESPACE;

DROP TABLE t1;


--echo #
--echo # Bug#11938039 RE-EXECUTION OF FRM-ONLY ALTER TABLE WITH RENAME
--echo #              CLAUSE FAILS OR ABORTS SERVER.
--echo #
--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1 (a int);
prepare stmt1 from 'alter table t1 alter column a set default 1, rename to t2';
execute stmt1;
rename table t2 to t1;
--echo # The below statement should succeed and not emit error or abort server.
execute stmt1;
deallocate prepare stmt1;
drop table t2;

--echo #
--echo # MDEV-8960 Can't refer the same column twice in one ALTER TABLE
--echo #

CREATE TABLE t1 (
  `a` int(11) DEFAULT NULL
) DEFAULT CHARSET=utf8;

ALTER TABLE t1 ADD COLUMN `consultant_id` integer NOT NULL,
ALTER COLUMN `consultant_id` DROP DEFAULT;

SHOW CREATE TABLE t1;
DROP TABLE t1;

CREATE TABLE t1 (
  `a` int(11) DEFAULT NULL
) DEFAULT CHARSET=utf8;

ALTER TABLE t1 ADD COLUMN `consultant_id` integer NOT NULL,
ALTER COLUMN `consultant_id` SET DEFAULT 2;
SHOW CREATE TABLE t1;
DROP TABLE t1;

CREATE TABLE t1 (
  `a` int(11) DEFAULT NULL
) DEFAULT CHARSET=utf8;

ALTER TABLE t1 ADD COLUMN `consultant_id` integer NOT NULL DEFAULT 2,
ALTER COLUMN `consultant_id` DROP DEFAULT;
SHOW CREATE TABLE t1;
DROP TABLE t1;

CREATE TABLE t1 (
  `a` int(11) DEFAULT NULL
) DEFAULT CHARSET=utf8;

ALTER TABLE t1 ADD COLUMN `consultant_id` integer NOT NULL DEFAULT 2,
ALTER COLUMN `consultant_id` DROP DEFAULT,
MODIFY COLUMN `consultant_id` BIGINT;
SHOW CREATE TABLE t1;
DROP TABLE t1;

--echo #
--echo # BUG#27788685: NO WARNING WHEN TRUNCATING A STRING WITH DATA LOSS
--echo #

SET GLOBAL max_allowed_packet=17825792;

--connect(con1, localhost, root,,)
CREATE TABLE t1 (t1_fld1 TEXT);
CREATE TABLE t2 (t2_fld1 MEDIUMTEXT);
CREATE TABLE t3 (t3_fld1 LONGTEXT);

INSERT INTO t1 VALUES (REPEAT('a',300));
INSERT INTO t2 VALUES (REPEAT('b',65680));
INSERT INTO t3 VALUES (REPEAT('c',16777300));

SELECT LENGTH(t1_fld1) FROM t1;
SELECT LENGTH(t2_fld1) FROM t2;
SELECT LENGTH(t3_fld1) FROM t3;

--echo # With strict mode
SET SQL_MODE='STRICT_ALL_TABLES';

--error ER_DATA_TOO_LONG
ALTER TABLE t1 CHANGE `t1_fld1` `my_t1_fld1` TINYTEXT;
--error ER_DATA_TOO_LONG
ALTER TABLE t2 CHANGE `t2_fld1` `my_t2_fld1` TEXT;
--error ER_DATA_TOO_LONG
ALTER TABLE t3 CHANGE `t3_fld1` `my_t3_fld1` MEDIUMTEXT;

--echo # With non-strict mode
SET SQL_MODE='';

ALTER TABLE t1 CHANGE `t1_fld1` `my_t1_fld1` TINYTEXT;
ALTER TABLE t2 CHANGE `t2_fld1` `my_t2_fld1` TEXT;
ALTER TABLE t3 CHANGE `t3_fld1` `my_t3_fld1` MEDIUMTEXT;

SELECT LENGTH(my_t1_fld1) FROM t1;
SELECT LENGTH(my_t2_fld1) FROM t2;
SELECT LENGTH(my_t3_fld1) FROM t3;

# Cleanup
--disconnect con1
--source include/wait_until_disconnected.inc

--connection default
DROP TABLE t1, t2, t3;

SET SQL_MODE=default;
SET GLOBAL max_allowed_packet=@save_max_allowed_packet;

#
# Test of ALTER TABLE IF [NOT] EXISTS
#

CREATE TABLE t1 (
  id INT(11) NOT NULL,
  x_param INT(11) DEFAULT NULL,
  PRIMARY KEY (id)
) ENGINE=MYISAM;

ALTER TABLE t1 ADD COLUMN IF NOT EXISTS id INT,
               ADD COLUMN IF NOT EXISTS lol INT AFTER id;
ALTER TABLE t1 ADD COLUMN IF NOT EXISTS lol INT AFTER id;
ALTER TABLE t1 DROP COLUMN IF EXISTS lol;
ALTER TABLE t1 DROP COLUMN IF EXISTS lol;

ALTER TABLE t1 ADD KEY IF NOT EXISTS x_param(x_param);
ALTER TABLE t1 ADD KEY IF NOT EXISTS x_param(x_param);
ALTER TABLE t1 MODIFY IF EXISTS lol INT;

DROP INDEX IF EXISTS x_param ON t1;
DROP INDEX IF EXISTS x_param ON t1;
CREATE INDEX IF NOT EXISTS x_param1 ON t1(x_param);
CREATE INDEX IF NOT EXISTS x_param1 ON t1(x_param);
SHOW CREATE TABLE t1;
DROP TABLE t1;

CREATE TABLE t1 (
  id INT(11) NOT NULL,
  x_param INT(11) DEFAULT NULL,
  PRIMARY KEY (id)
) ENGINE=INNODB;

CREATE TABLE t2 (
  id INT(11) NOT NULL) ENGINE=INNODB;

ALTER TABLE t1 ADD COLUMN IF NOT EXISTS id INT,
               ADD COLUMN IF NOT EXISTS lol INT AFTER id;
ALTER TABLE t1 ADD COLUMN IF NOT EXISTS lol INT AFTER id;
ALTER TABLE t1 DROP COLUMN IF EXISTS lol;
ALTER TABLE t1 DROP COLUMN IF EXISTS lol;

ALTER TABLE t1 ADD KEY IF NOT EXISTS x_param(x_param);
ALTER TABLE t1 ADD KEY IF NOT EXISTS x_param(x_param);
ALTER TABLE t1 MODIFY IF EXISTS lol INT;

DROP INDEX IF EXISTS x_param ON t1;
DROP INDEX IF EXISTS x_param ON t1;
CREATE INDEX IF NOT EXISTS x_param1 ON t1(x_param);
CREATE INDEX IF NOT EXISTS x_param1 ON t1(x_param);
SHOW CREATE TABLE t1;

ALTER TABLE t2 ADD FOREIGN KEY IF NOT EXISTS fk(id) REFERENCES t1(id);
ALTER TABLE t2 ADD FOREIGN KEY IF NOT EXISTS fk(id) REFERENCES t1(id);
ALTER TABLE t2 DROP FOREIGN KEY IF EXISTS fk;
ALTER TABLE t2 DROP FOREIGN KEY IF EXISTS fk;
SHOW CREATE TABLE t2;
ALTER TABLE t2 ADD FOREIGN KEY (id) REFERENCES t1(id);
ALTER TABLE t2 ADD FOREIGN KEY IF NOT EXISTS t2_ibfk_1(id) REFERENCES t1(id);
ALTER TABLE t2 DROP FOREIGN KEY IF EXISTS t2_ibfk_1;
ALTER TABLE t2 DROP FOREIGN KEY IF EXISTS t2_ibfk_1;
SHOW CREATE TABLE t2;

DROP TABLE t2;
CREATE TABLE t2 (
  id INT(11) NOT NULL);
ALTER TABLE t2 ADD COLUMN a INT, ADD COLUMN IF NOT EXISTS a INT;
ALTER TABLE t2 ADD KEY k_id(id), ADD KEY IF NOT EXISTS k_id(id);
SHOW CREATE TABLE t2;
ALTER TABLE t2 DROP KEY k_id, DROP KEY IF EXISTS k_id;
ALTER TABLE t2 DROP COLUMN a, DROP COLUMN IF EXISTS a;
SHOW CREATE TABLE t2;

DROP TABLE t2;
DROP TABLE t1;

CREATE TABLE t1 (
    `transaction_id` int(11) NOT NULL DEFAULT '0', 
    KEY `transaction_id` (`transaction_id`));
ALTER TABLE t1 DROP KEY IF EXISTS transaction_id, ADD PRIMARY KEY IF NOT EXISTS (transaction_id);
SHOW CREATE TABLE t1;

DROP TABLE t1;

--echo # Bug#11748057 (formerly known as 34972): ALTER TABLE statement doesn't
--echo #                                         identify correct column name.
--echo #

CREATE TABLE t1 (c1 int unsigned , c2 char(100) not null default '');
ALTER TABLE t1 ADD c3 char(16) NOT NULL DEFAULT '' AFTER c2,
               MODIFY c2 char(100) NOT NULL DEFAULT '' AFTER c1;
SHOW CREATE TABLE t1;
DROP TABLE t1;

--echo #
--echo # WL#5534 Online ALTER, Phase 1
--echo #

--echo # Single thread tests.
--echo # See innodb_mysql_sync.test for multi thread tests.

--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings

CREATE TABLE t1(a INT PRIMARY KEY, b INT) engine=InnoDB;
CREATE TABLE m1(a INT PRIMARY KEY, b INT) engine=MyISAM;
INSERT INTO t1 VALUES (1,1), (2,2);
INSERT INTO m1 VALUES (1,1), (2,2);

--echo #
--echo # 1: Test ALGORITHM keyword
--echo #

--echo # --enable_info allows us to see how many rows were updated
--echo # by ALTER TABLE. in-place will show 0 rows, while copy > 0.

--enable_info
ALTER TABLE t1 ADD INDEX i1(b);
ALTER TABLE t1 ADD INDEX i2(b), ALGORITHM= DEFAULT;
ALTER TABLE t1 ADD INDEX i3(b), ALGORITHM= COPY;
ALTER TABLE t1 ADD INDEX i4(b), ALGORITHM= INPLACE;
--error ER_UNKNOWN_ALTER_ALGORITHM
ALTER TABLE t1 ADD INDEX i5(b), ALGORITHM= INVALID;

ALTER TABLE m1 ENABLE KEYS;
ALTER TABLE m1 ENABLE KEYS, ALGORITHM= DEFAULT;
ALTER TABLE m1 ENABLE KEYS, ALGORITHM= COPY;
ALTER TABLE m1 ENABLE KEYS, ALGORITHM= INPLACE;
--disable_info

ALTER TABLE t1 DROP INDEX i1, DROP INDEX i2, DROP INDEX i3, DROP INDEX i4;

--echo #
--echo # 2: Test ALGORITHM + old_alter_table
--echo #

--enable_info
SET SESSION old_alter_table= 1;
ALTER TABLE t1 ADD INDEX i1(b);
ALTER TABLE t1 ADD INDEX i2(b), ALGORITHM= DEFAULT;
ALTER TABLE t1 ADD INDEX i3(b), ALGORITHM= COPY;
ALTER TABLE t1 ADD INDEX i4(b), ALGORITHM= INPLACE;
SET SESSION old_alter_table= 0;
--disable_info

ALTER TABLE t1 DROP INDEX i1, DROP INDEX i2, DROP INDEX i3, DROP INDEX i4;

--echo #
--echo # 3: Test unsupported in-place operation
--echo #

ALTER TABLE t1 ADD COLUMN (c1 INT);
ALTER TABLE t1 ADD COLUMN (c2 INT), ALGORITHM= DEFAULT;
ALTER TABLE t1 ADD COLUMN (c3 INT), ALGORITHM= COPY;
ALTER TABLE t1 ADD COLUMN (c4 INT), ALGORITHM= INPLACE;

ALTER TABLE t1 DROP COLUMN c1, DROP COLUMN c2, DROP COLUMN c3, DROP COLUMN c4;

--echo #
--echo # 4: Test LOCK keyword
--echo #

--enable_info
ALTER TABLE t1 ADD INDEX i1(b), LOCK= DEFAULT;
ALTER TABLE t1 ADD INDEX i2(b), LOCK= NONE;
ALTER TABLE t1 ADD INDEX i3(b), LOCK= SHARED;
ALTER TABLE t1 ADD INDEX i4(b), LOCK= EXCLUSIVE;
--error ER_UNKNOWN_ALTER_LOCK
ALTER TABLE t1 ADD INDEX i5(b), LOCK= INVALID;
--disable_info

ALTER TABLE m1 ENABLE KEYS, LOCK= DEFAULT;
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE m1 ENABLE KEYS, LOCK= NONE;
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE m1 ENABLE KEYS, LOCK= SHARED;
ALTER TABLE m1 ENABLE KEYS, LOCK= EXCLUSIVE;

ALTER TABLE t1 DROP INDEX i1, DROP INDEX i2, DROP INDEX i3, DROP INDEX i4;

--echo #
--echo # 5: Test ALGORITHM + LOCK
--echo #

--enable_info
ALTER TABLE t1 ADD INDEX i1(b), ALGORITHM= INPLACE, LOCK= NONE;
ALTER TABLE t1 ADD INDEX i2(b), ALGORITHM= INPLACE, LOCK= SHARED;
ALTER TABLE t1 ADD INDEX i3(b), ALGORITHM= INPLACE, LOCK= EXCLUSIVE;
--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
ALTER TABLE t1 ADD INDEX i4(b), ALGORITHM= COPY, LOCK= NONE;
ALTER TABLE t1 ADD INDEX i5(b), ALGORITHM= COPY, LOCK= SHARED;
ALTER TABLE t1 ADD INDEX i6(b), ALGORITHM= COPY, LOCK= EXCLUSIVE;

--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE m1 ENABLE KEYS, ALGORITHM= INPLACE, LOCK= NONE;
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER TABLE m1 ENABLE KEYS, ALGORITHM= INPLACE, LOCK= SHARED;
ALTER TABLE m1 ENABLE KEYS, ALGORITHM= INPLACE, LOCK= EXCLUSIVE;
--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
ALTER TABLE m1 ENABLE KEYS, ALGORITHM= COPY, LOCK= NONE;
--error ER_ALTER_OPERATION_NOT_SUPPORTED
ALTER ONLINE TABLE m1 ADD COLUMN c int;
# This works because the lock will be SNW for the copy phase.
# It will still require exclusive lock for actually enabling keys.
ALTER TABLE m1 ENABLE KEYS, ALGORITHM= COPY, LOCK= SHARED;
ALTER TABLE m1 ENABLE KEYS, ALGORITHM= COPY, LOCK= EXCLUSIVE;
--disable_info

DROP TABLE t1, m1;

--echo #
--echo # 6: Possible deadlock involving thr_lock.c
--echo #

CREATE TABLE t1(a INT PRIMARY KEY, b INT);
INSERT INTO t1 VALUES (1,1), (2,2);

START TRANSACTION;
INSERT INTO t1 VALUES (3,3);

connect (con1, localhost, root);
--echo # Sending:
--send ALTER TABLE t1 DISABLE KEYS

connection default;
--echo # Waiting until ALTER TABLE is blocked.
let $wait_condition=
  SELECT COUNT(*) = 1 FROM information_schema.processlist
  WHERE state = "Waiting for table metadata lock" AND
        info = "ALTER TABLE t1 DISABLE KEYS";
--source include/wait_condition.inc
UPDATE t1 SET b = 4;
COMMIT;

connection con1;
--echo # Reaping: ALTER TABLE t1 DISABLE KEYS
--reap
disconnect con1;
--source include/wait_until_disconnected.inc

connection default;
DROP TABLE t1;

--echo #
--echo # 7: Which operations require copy and which can be done in-place?
--echo #
--echo # Test which ALTER TABLE operations are done in-place and
--echo # which operations are done using temporary table copy.
--echo #
--echo # --enable_info allows us to see how many rows were updated
--echo # by ALTER TABLE. in-place will show 0 rows, while copy > 0.
--echo #

--disable_warnings
DROP TABLE IF EXISTS ti1, ti2, ti3, tm1, tm2, tm3;
--enable_warnings

--echo # Single operation tests

CREATE TABLE ti1(a INT NOT NULL, b INT, c INT) engine=InnoDB;
CREATE TABLE tm1(a INT NOT NULL, b INT, c INT) engine=MyISAM;
CREATE TABLE ti2(a INT PRIMARY KEY AUTO_INCREMENT, b INT, c INT) engine=InnoDB;
CREATE TABLE tm2(a INT PRIMARY KEY AUTO_INCREMENT, b INT, c INT) engine=MyISAM;
INSERT INTO ti1 VALUES (1,1,1), (2,2,2);
INSERT INTO ti2 VALUES (1,1,1), (2,2,2);
INSERT INTO tm1 VALUES (1,1,1), (2,2,2);
INSERT INTO tm2 VALUES (1,1,1), (2,2,2);

--enable_info
ALTER TABLE ti1;
ALTER TABLE tm1;

ALTER TABLE ti1 ADD COLUMN d VARCHAR(200);
ALTER TABLE tm1 ADD COLUMN d VARCHAR(200);
ALTER TABLE ti1 ADD COLUMN d2 VARCHAR(200);
ALTER TABLE tm1 ADD COLUMN d2 VARCHAR(200);
ALTER TABLE ti1 ADD COLUMN e ENUM('a', 'b') FIRST;
ALTER TABLE tm1 ADD COLUMN e ENUM('a', 'b') FIRST;
ALTER TABLE ti1 ADD COLUMN f INT AFTER a;
ALTER TABLE tm1 ADD COLUMN f INT AFTER a;

ALTER TABLE ti1 ADD INDEX ii1(b);
ALTER TABLE tm1 ADD INDEX im1(b);
ALTER TABLE ti1 ADD UNIQUE INDEX ii2 (c);
ALTER TABLE tm1 ADD UNIQUE INDEX im2 (c);
ALTER TABLE ti1 ADD FULLTEXT INDEX ii3 (d);
ALTER TABLE tm1 ADD FULLTEXT INDEX im3 (d);
ALTER TABLE ti1 ADD FULLTEXT INDEX ii4 (d2);
ALTER TABLE tm1 ADD FULLTEXT INDEX im4 (d2);

# Bug#14140038 INCONSISTENT HANDLING OF FULLTEXT INDEXES IN ALTER TABLE
--error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
ALTER TABLE ti1 ADD PRIMARY KEY(a), ALGORITHM=INPLACE;
ALTER TABLE ti1 ADD PRIMARY KEY(a);
ALTER TABLE tm1 ADD PRIMARY KEY(a);

ALTER TABLE ti1 DROP INDEX ii3;
ALTER TABLE tm1 DROP INDEX im3;

ALTER TABLE ti1 DROP COLUMN d2;
ALTER TABLE tm1 DROP COLUMN d2;

ALTER TABLE ti1 ADD CONSTRAINT fi1 FOREIGN KEY (b) REFERENCES ti2(a);
ALTER TABLE tm1 ADD CONSTRAINT fm1 FOREIGN KEY (b) REFERENCES tm2(a);

ALTER TABLE ti1 ALTER COLUMN b SET DEFAULT 1;
ALTER TABLE tm1 ALTER COLUMN b SET DEFAULT 1;
ALTER TABLE ti1 ALTER COLUMN b DROP DEFAULT;
ALTER TABLE tm1 ALTER COLUMN b DROP DEFAULT;

# This will set both ALTER_COLUMN_NAME and COLUMN_DEFAULT_VALUE
ALTER TABLE ti1 CHANGE COLUMN f g INT;
ALTER TABLE tm1 CHANGE COLUMN f g INT;
ALTER TABLE ti1 CHANGE COLUMN g h VARCHAR(20);
ALTER TABLE tm1 CHANGE COLUMN g h VARCHAR(20);
ALTER TABLE ti1 MODIFY COLUMN e ENUM('a', 'b', 'c');
ALTER TABLE tm1 MODIFY COLUMN e ENUM('a', 'b', 'c');
ALTER TABLE ti1 MODIFY COLUMN e INT;
ALTER TABLE tm1 MODIFY COLUMN e INT;
# This will set both ALTER_COLUMN_ORDER and COLUMN_DEFAULT_VALUE
ALTER TABLE ti1 MODIFY COLUMN e INT AFTER h;
ALTER TABLE tm1 MODIFY COLUMN e INT AFTER h;
ALTER TABLE ti1 MODIFY COLUMN e INT FIRST;
ALTER TABLE tm1 MODIFY COLUMN e INT FIRST;
# This will set both ALTER_COLUMN_NOT_NULLABLE and COLUMN_DEFAULT_VALUE
--disable_info
# NULL -> NOT NULL only allowed INPLACE if strict sql_mode is on.
SET @orig_sql_mode = @@sql_mode;
SET @@sql_mode = 'STRICT_TRANS_TABLES';
--enable_info
ALTER TABLE ti1 MODIFY COLUMN c INT NOT NULL;
--disable_info
SET @@sql_mode = @orig_sql_mode;
--enable_info
ALTER TABLE tm1 MODIFY COLUMN c INT NOT NULL;
# This will set both ALTER_COLUMN_NULLABLE and COLUMN_DEFAULT_VALUE
ALTER TABLE ti1 MODIFY COLUMN c INT NULL;
ALTER TABLE tm1 MODIFY COLUMN c INT NULL;
# This will set both ALTER_COLUMN_EQUAL_PACK_LENGTH and COLUMN_DEFAULT_VALUE
ALTER TABLE ti1 MODIFY COLUMN h VARCHAR(30);
ALTER TABLE tm1 MODIFY COLUMN h VARCHAR(30);
ALTER TABLE ti1 MODIFY COLUMN h VARCHAR(30) AFTER d;
ALTER TABLE tm1 MODIFY COLUMN h VARCHAR(30) AFTER d;

ALTER TABLE ti1 DROP COLUMN h;
ALTER TABLE tm1 DROP COLUMN h;

ALTER TABLE ti1 DROP INDEX ii2;
ALTER TABLE tm1 DROP INDEX im2;
ALTER TABLE ti1 DROP PRIMARY KEY;
ALTER TABLE tm1 DROP PRIMARY KEY;

ALTER TABLE ti1 DROP FOREIGN KEY fi1;
ALTER TABLE tm1 DROP FOREIGN KEY fm1;

ALTER TABLE ti1 RENAME TO ti3;
ALTER TABLE tm1 RENAME TO tm3;
ALTER TABLE ti3 RENAME TO ti1;
ALTER TABLE tm3 RENAME TO tm1;

ALTER TABLE ti1 ORDER BY b;
ALTER TABLE tm1 ORDER BY b;

ALTER TABLE ti1 CONVERT TO CHARACTER SET utf16;
ALTER TABLE tm1 CONVERT TO CHARACTER SET utf16;
ALTER TABLE ti1 DEFAULT CHARACTER SET utf8;
ALTER TABLE tm1 DEFAULT CHARACTER SET utf8;

ALTER TABLE ti1 FORCE;
ALTER TABLE tm1 FORCE;

ALTER TABLE ti1 AUTO_INCREMENT 3;
ALTER TABLE tm1 AUTO_INCREMENT 3;
ALTER TABLE ti1 AVG_ROW_LENGTH 10;
ALTER TABLE tm1 AVG_ROW_LENGTH 10;
ALTER TABLE ti1 CHECKSUM 1;
ALTER TABLE tm1 CHECKSUM 1;
ALTER TABLE ti1 COMMENT 'test';
ALTER TABLE tm1 COMMENT 'test';
ALTER TABLE ti1 MAX_ROWS 100;
ALTER TABLE tm1 MAX_ROWS 100;
ALTER TABLE ti1 MIN_ROWS 1;
ALTER TABLE tm1 MIN_ROWS 1;
ALTER TABLE ti1 PACK_KEYS 1;
ALTER TABLE tm1 PACK_KEYS 1;

--disable_info
DROP TABLE ti1, ti2, tm1, tm2;

--echo # Tests of >1 operation (InnoDB)

CREATE TABLE ti1(a INT PRIMARY KEY AUTO_INCREMENT, b INT) engine=InnoDB;
INSERT INTO ti1(b) VALUES (1), (2);

--enable_info
ALTER TABLE ti1 RENAME TO ti3, ADD INDEX ii1(b);

ALTER TABLE ti3 DROP INDEX ii1, AUTO_INCREMENT 5;
--disable_info
INSERT INTO ti3(b) VALUES (5);
--enable_info
ALTER TABLE ti3 ADD INDEX ii1(b), AUTO_INCREMENT 7;
--disable_info
INSERT INTO ti3(b) VALUES (7);
SELECT * FROM ti3;

DROP TABLE ti3;

--echo #
--echo # 8: Scenario in which ALTER TABLE was returning an unwarranted
--echo #    ER_ILLEGAL_HA error at some point during work on this WL.
--echo #

CREATE TABLE tm1(i INT DEFAULT 1) engine=MyISAM;
ALTER TABLE tm1 ADD INDEX ii1(i), ALTER COLUMN i DROP DEFAULT;
DROP TABLE tm1;

#
# MDEV-4435 Server crashes in my_strcasecmp_utf8 on ADD KEY IF NOT EXISTS with implicit name when the key exists.
#
create table if not exists t1 (i int);
alter table t1 add key (i);
alter table t1 add key if not exists (i);
DROP TABLE t1;

#
# MDEV-4436 CHANGE COLUMN IF EXISTS does not work and throws wrong warning.
#
create table t1 (a int);
alter table t1 change column if exists a b bigint;
show create table t1;
DROP TABLE t1;

#
# MDEV-4437 ALTER TABLE .. ADD UNIQUE INDEX IF NOT EXISTS causes syntax error.
#

create table t1 (i int);
alter table t1 add unique index if not exists idx(i);
alter table t1 add unique index if not exists idx(i);
show create table t1;
DROP TABLE t1;

#
# MDEV-8358 ADD PRIMARY KEY IF NOT EXISTS -> ERROR 1068 (42000): Multiple primary key
#

CREATE TABLE t1 (
   `event_id` bigint(20) unsigned NOT NULL DEFAULT '0',
   `market_id` bigint(20) unsigned NOT NULL DEFAULT '0',
 PRIMARY KEY (`event_id`,`market_id`)
 );
ALTER TABLE t1 ADD PRIMARY KEY IF NOT EXISTS event_id (event_id,market_id);
DROP TABLE t1;

--echo #
--echo # MDEV-11126 Crash while altering persistent virtual column
--echo #

CREATE TABLE `tab1` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `field2` set('option1','option2','option3','option4') NOT NULL,
  `field3` set('option1','option2','option3','option4','option5') NOT NULL,
  `field4` set('option1','option2','option3','option4') NOT NULL,
  `field5` varchar(32) NOT NULL,
  `field6` varchar(32) NOT NULL,
  `field7` varchar(32) NOT NULL,
  `field8` varchar(32) NOT NULL,
  `field9` int(11) NOT NULL DEFAULT '1',
  `field10` varchar(16) NOT NULL,
  `field11` enum('option1','option2','option3') NOT NULL DEFAULT 'option1',
  `v_col` varchar(128) AS (IF(field11='option1',CONCAT_WS(":","field1",field2,field3,field4,field5,field6,field7,field8,field9,field10), CONCAT_WS(":","field1",field11,field2,field3,field4,field5,field6,field7,field8,field9,field10))) PERSISTENT,
  PRIMARY KEY (`id`)
) DEFAULT CHARSET=latin1;

ALTER TABLE `tab1` CHANGE COLUMN v_col `v_col` varchar(128);
SHOW CREATE TABLE `tab1`;
ALTER TABLE `tab1` CHANGE COLUMN v_col `v_col` varchar(128) AS (IF(field11='option1',CONCAT_WS(":","field1",field2,field3,field4,field5,field6,field7,field8,field9,field10), CONCAT_WS(":","field1",field11,field2,field3,field4,field5,field6,field7,field8,field9,field10))) PERSISTENT;
SHOW CREATE TABLE `tab1`;
DROP TABLE `tab1`;

--echo #
--echo # MDEV-11548 Reproducible server crash after the 2nd ALTER TABLE ADD FOREIGN KEY IF NOT EXISTS
--echo #

CREATE TABLE t1 (id INT UNSIGNED NOT NULL PRIMARY KEY);
CREATE TABLE t2 (id1 INT UNSIGNED NOT NULL);

ALTER TABLE t2
ADD FOREIGN KEY IF NOT EXISTS (id1)
  REFERENCES t1 (id);

ALTER TABLE t2
ADD FOREIGN KEY IF NOT EXISTS (id1)
REFERENCES t1 (id);

DROP TABLE t2;
DROP TABLE t1;

--echo #
--echo # MDEV-6390 CONVERT TO CHARACTER SET utf8 doesn't change DEFAULT CHARSET.
--echo #

CREATE TABLE t1 (id int(11) NOT NULL, a int(11) NOT NULL, b int(11))
  ENGINE=InnoDB DEFAULT CHARSET=latin1;
SHOW CREATE TABLE t1;
ALTER TABLE t1 CONVERT TO CHARACTER SET utf8;
SHOW CREATE TABLE t1;
DROP TABLE t1;

--echo #
--echo # MDEV-15308
--echo # Assertion `ha_alter_info->alter_info->drop_list.elements > 0' failed
--echo # in ha_innodb::prepare_inplace_alter_table
--echo #

CREATE TABLE t1 (a INT, b INT) ENGINE=InnoDB;
ALTER TABLE t1 DROP FOREIGN KEY IF EXISTS fk, DROP COLUMN b;
SHOW CREATE TABLE t1;
DROP TABLE t1;

CREATE TABLE t1 (a INT, b INT) ENGINE=InnoDB;
ALTER TABLE t1 DROP INDEX IF EXISTS fk, DROP COLUMN b;
SHOW CREATE TABLE t1;
DROP TABLE t1;

CREATE TABLE t1 (a INT, b INT, c INT, KEY(c)) ENGINE=InnoDB;
ALTER TABLE t1 DROP FOREIGN KEY IF EXISTS fk, DROP COLUMN c;
SHOW CREATE TABLE t1;
DROP TABLE t1;

CREATE TABLE t1 (a INT, b INT, c INT, KEY c1(c)) ENGINE=InnoDB;
ALTER TABLE t1 DROP FOREIGN KEY IF EXISTS fk, DROP INDEX c1;
SHOW CREATE TABLE t1;
DROP TABLE t1;

CREATE TABLE t1 (a INT, b INT) ENGINE=InnoDB;
ALTER TABLE t1 DROP INDEX IF EXISTS fk, DROP COLUMN IF EXISTS c;
SHOW CREATE TABLE t1;
DROP TABLE t1;

--echo #
--echo # MDEV-14668 ADD PRIMARY KEY IF NOT EXISTS on composite key
--echo #
CREATE TABLE t1 (
        `ID` BIGINT(20) NOT NULL,
            `RANK` MEDIUMINT(4) NOT NULL,
                `CHECK_POINT` BIGINT(20) NOT NULL,
                    UNIQUE INDEX `HORIZON_UIDX01` (`ID`, `RANK`)
    ) ENGINE=InnoDB;

ALTER TABLE t1 ADD PRIMARY KEY IF NOT EXISTS (`ID`, `CHECK_POINT`);
SHOW CREATE TABLE t1;
ALTER TABLE t1 ADD PRIMARY KEY IF NOT EXISTS (`ID`, `CHECK_POINT`);
DROP TABLE t1;

--echo #
--echo # End of 10.0 tests
--echo #

--echo #
--echo # MDEV-7374 : Losing connection to MySQL while running ALTER TABLE
--echo #
CREATE TABLE t1(i INT) ENGINE=INNODB;
INSERT INTO t1 VALUES (1),(2),(3),(4),(5),(6),(7),(8);
INSERT INTO t1 SELECT a.* FROM t1 a, t1 b, t1 c, t1 d, t1 e;
ALTER TABLE t1 MODIFY i FLOAT;
DROP TABLE t1;

--echo #
--echo # MDEV-7816 ALTER with DROP INDEX and ADD INDEX .. COMMENT='comment2' ignores the new comment
--echo #
CREATE TABLE t1(a INT);
CREATE INDEX i1 ON t1(a) COMMENT 'comment1';
ALTER TABLE t1 DROP INDEX i1, ADD INDEX i1(a) COMMENT 'comment2';
SHOW CREATE TABLE t1;
DROP TABLE t1;

--echo #
--echo # End of 10.1 tests
--echo #

--echo #
--echo # MDEV-10421 duplicate CHECK CONSTRAINTs
--echo #
CREATE TABLE t1 (a INT, b INT) engine=myisam;
ALTER TABLE t1 ADD CONSTRAINT IF NOT EXISTS `min` CHECK (a+b > 100);
--error ER_DUP_CONSTRAINT_NAME
ALTER TABLE t1 ADD CONSTRAINT `min` CHECK (a+b > 100);
ALTER TABLE t1 ADD CONSTRAINT IF NOT EXISTS `min` CHECK (a+b > 100);
ALTER TABLE t1 ADD CONSTRAINT `mini` CHECK (a+b > 100);
SHOW CREATE TABLE t1;
DROP TABLE t1;
--error ER_DUP_CONSTRAINT_NAME
CREATE TABLE t1(a INT, b INT, CONSTRAINT min check (a>5),
                              CONSTRAINT min check (b>5));

#
# MDEV-11114 Cannot drop column referenced by CHECK constraint
#
create table t1 (a int, b int, check(a>b));
--error ER_BAD_FIELD_ERROR
alter table t1 drop column a;
--error ER_BAD_FIELD_ERROR
alter table t1 drop column b, add column b bigint first;
alter table t1 drop column a, drop constraint constraint_1;
show create table t1;
drop table t1;

create table t1 (a int, b int, check(a>0));
alter table t1 drop column a;
show create table t1;
drop table t1;

create table t1 (a int, b int, check(a>0));
alter table t1 drop column a, add column a bigint first;
show create table t1;
drop table t1;

create table t1 (a int, b int, c int, unique(a));
alter table t1 drop column a;
show create table t1;
drop table t1;

create table t1 (a int, b int, c int, unique(a,b));
--error ER_KEY_COLUMN_DOES_NOT_EXITS
alter table t1 drop column a;
alter table t1 drop column a, drop index a;
show create table t1;
drop table t1;

#
# MDEV-14694 ALTER COLUMN IF EXISTS .. causes syntax error
#

create table t1 (i int);
alter table t1 alter column if exists a set default 1;
alter table t1 alter column if exists a drop default;
show create table t1;
drop table t1;

--echo #
--echo # MDEV-13508 Check that rename of columns changes defaults, virtual
--echo # columns and constraints
--echo #

create table t1 (a int, b int, check(a>b));
alter table t1 change column a b int, change column b a int;
show create table t1;
drop table t1;

create table t1 (a int primary key, b int, c int default (a+b) check (a+b>0),
                d int as (a+b),
	        key (b),
	        constraint test check (a+b > 1));
alter table t1 change b new_b int not null, add column b char(1), add constraint new check (length(b) > 0);
show create table t1;
drop table t1;

--echo #
--echo # MDEV-11071: Assertion `thd->transaction.stmt.is_empty()' failed
--echo # in Locked_tables_list::unlock_locked_tables
--echo #

CREATE TABLE t1 (d DATETIME DEFAULT CURRENT_TIMESTAMP, i INT) ENGINE=InnoDB;
INSERT INTO t1 (i) VALUES (1),(1);
LOCK TABLE t1 WRITE;
--error ER_DUP_ENTRY
ALTER TABLE t1 ADD UNIQUE(i);

# Cleanup
UNLOCK TABLES;
DROP TABLE t1;


--echo #
--echo # MDEV-17599 ALTER TABLE DROP CONSTRAINT does not work for foreign keys.
--echo #

CREATE TABLE t1(id INT PRIMARY KEY, c1 INT) ENGINE= INNODB;
CREATE TABLE t2(id INT PRIMARY KEY, c1 INT, c2 INT NOT NULL,
    CONSTRAINT sid FOREIGN KEY (`c1`) REFERENCES t1 (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION,
    CONSTRAINT UNIQUE `ui`(c2)) ENGINE= INNODB;
SHOW CREATE TABLE t2;
ALTER TABLE t2 DROP CONSTRAINT sid;
SHOW CREATE TABLE t2;
ALTER TABLE t2 DROP CONSTRAINT ui;
SHOW CREATE TABLE t2;
ALTER TABLE t2 DROP CONSTRAINT PRIMARY KEY;
SHOW CREATE TABLE t2;
DROP TABLE t2, t1;

--echo #
--echo # MDEV-18163: Assertion `table_share->tmp_table != NO_TMP_TABLE ||
--echo # m_lock_type != 2' failed in handler::ha_rnd_next(); / Assertion
--echo # `table_list->table' failed in find_field_in_table_ref / ERROR 1901
--echo # (on optimized builds)
--echo #


CREATE TABLE t1 (k1 varchar(10) DEFAULT 5);
CREATE TABLE t2 (i1 int);
--error ER_GENERATED_COLUMN_FUNCTION_IS_NOT_ALLOWED
ALTER TABLE t1 ALTER COLUMN k1 SET DEFAULT (SELECT 1 FROM t2 limit 1);
DROP TABLE t1,t2;

--echo #
--echo # End of 10.2 tests
--echo #

--echo #
--echo # MDEV-17778: Alter table leads to a truncation warning with ANALYZE command
--echo #

set @save_use_stat_tables= @@use_stat_tables;
set @save_optimizer_use_condition_selectivity= @@optimizer_use_condition_selectivity;
set @@optimizer_use_condition_selectivity=4;
set @@use_stat_tables=PREFERABLY;

create table t1 (a int)engine=InnoDB;
insert into t1 values (1),(1),(2),(3);

analyze table t1;
alter table t1 change a b int;
analyze table t1;
set @@use_stat_tables= @save_use_stat_tables;
set @@optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity;
drop table t1;

--echo #
--echo # MDEV-18154 Deadlock and assertion upon no-op ALTER under LOCK TABLES
--echo #
create or replace table t1 (pk int, i int, primary key (pk)) engine myisam;
create or replace view v1 as select * from t1;
lock table v1 read, t1 write;
--error ER_BAD_FIELD_ERROR
alter table t1 change f1 f2 int;
set max_statement_time= 1;
alter table t1 add column if not exists i int after pk;
set max_statement_time= 0;
drop table t1;
drop view v1;

--echo #
--echo # End of 10.3 tests
--echo #

--echo #
--echo # MDEV-22563 Segfault on duplicate free of Item_func_in::array
--echo #
create or replace table person_principal (
  person_id bigint not null,
  insurant_id varchar(10) not null,
  principal_id bigint not null,
  principal_officer_id bigint not null,
  nursing_degree tinyint null,
  nursing_degree_valid_from date not null default cast(current_timestamp(6) as date),
  carma_user_id bigint not null,
  current_date_time timestamp(6) not null default current_timestamp(6) on update current_timestamp(6),
  constraint pk_person_principal primary key (person_id asc),
  constraint ck_person_principal_nursing_degree check (nursing_degree in (1,2,3,4,5)));

create or replace table person_principal_hist (
  person_id bigint not null,
  insurant_id varchar(10) not null,
  principal_id bigint not null,
  principal_officer_id bigint not null,
  nursing_degree tinyint null,
  nursing_degree_valid_from date not null default cast(now() as date),
  carma_user_id bigint not null,
  orig_date_time datetime(6) not null,
  constraint pk_person_principal_hist primary key (person_id asc, orig_date_time asc),
  constraint ck_person_principal_hist_nursing_degree check (nursing_degree in (1,2,3,4,5)));

insert into person_principal (person_id, insurant_id, principal_id, principal_officer_id, nursing_degree, nursing_degree_valid_from, carma_user_id)
values (1, 'A123456789', 5, 1, 1, '2018-05-06', 1);
alter table person_principal add column if not exists date_mask tinyint null;
update person_principal set date_mask = 0;
alter table person_principal modify column date_mask tinyint not null;
drop tables person_principal_hist, person_principal;

#
# The following ALTER TABLE caused crash in 10.4.13 (Reported on freenode)
#

CREATE OR REPLACE TABLE `t1` (   `id` varchar(64) NOT NULL,   `name` varchar(255) NOT NULL,   `extra` text DEFAULT NULL,   `password` varchar(128) DEFAULT NULL,   `enabled` tinyint(1) DEFAULT NULL,   `domain_id` varchar(64) NOT NULL,   `default_project_id` varchar(64) DEFAULT NULL,   PRIMARY KEY (`id`),  CONSTRAINT `CONSTRAINT_1` CHECK (`enabled` in (0,1)) ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
insert into t1 (id,name,enabled,domain_id) values (1,"Monty",1,"domain_id");
insert into t1 (id,name,enabled,domain_id) values (2,"Monty2",1,"domain_id2");
ALTER TABLE t1 ADD CONSTRAINT ixu_user2_name_domain_id UNIQUE (domain_id, name);
DROP TABLE t1;

--echo #
--echo # End of 10.4 tests
--echo #

--echo #
--echo # MDEV-16290 ALTER TABLE ... RENAME COLUMN syntax
--echo #
SET @save_default_engine= @@DEFAULT_STORAGE_ENGINE;
--disable_query_log
if ($MTR_COMBINATION_INNODB)
{
SET DEFAULT_STORAGE_ENGINE= INNODB;
}
if ($MTR_COMBINATION_ARIA)
{
SET DEFAULT_STORAGE_ENGINE= ARIA;
}
if ($MTR_COMBINATION_HEAP)
{
SET DEFAULT_STORAGE_ENGINE= MEMORY;
}
--enable_query_log
let $default_engine= `select @@default_storage_engine`;

CREATE TABLE t1(a INT, b VARCHAR(30), c FLOAT);
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t1;
INSERT INTO t1 VALUES(1,'abcd',1.234);
CREATE TABLE t2(a INT, b VARCHAR(30), c FLOAT) ENGINE=MyIsam;
SHOW CREATE TABLE t2;
INSERT INTO t2 VALUES(1,'abcd',1.234);

# Rename one column
ALTER TABLE t1 RENAME COLUMN a TO a;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t1;
ALTER TABLE t1 RENAME COLUMN a TO m;
--error ER_BAD_FIELD_ERROR
ALTER TABLE t1 RENAME COLUMN a TO m;
ALTER TABLE t1 RENAME COLUMN IF EXISTS a TO m;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t1;
SELECT * FROM t1;

# Rename multiple column
ALTER TABLE t1 RENAME COLUMN m TO x,
               RENAME COLUMN b TO y,
               RENAME COLUMN c TO z;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t1;
SELECT * FROM t1;

# Rename multiple columns with MyIsam Engine
ALTER TABLE t2 RENAME COLUMN a TO d, RENAME COLUMN b TO e, RENAME COLUMN c to f;
SHOW CREATE TABLE t2;
SELECT * FROM t2;

# Mix different ALTER operations with RENAME COLUMN
ALTER TABLE t1 CHANGE COLUMN x a INT, RENAME COLUMN y TO b;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t1;
ALTER TABLE t1 CHANGE COLUMN z c DOUBLE, RENAME COLUMN b to b;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t1;
ALTER TABLE t1 CHANGE COLUMN a b int, RENAME COLUMN b TO c, CHANGE COLUMN c d FLOAT;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t1;
ALTER TABLE t1 ADD COLUMN zz INT, RENAME COLUMN d TO f;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t1;
ALTER TABLE t1 DROP COLUMN zz, RENAME COLUMN c TO zz;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t1;
ALTER TABLE t1 RENAME COLUMN zz to c, DROP COLUMN f;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t1;
ALTER TABLE t1 ADD COLUMN d INT DEFAULT 5, RENAME COLUMN c TO b, DROP COLUMN b;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t1;

#Cyclic Rename
ALTER TABLE t1 RENAME COLUMN b TO d, RENAME COLUMN d TO b;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t1;

# Rename with Indexes
ALTER TABLE t1 ADD KEY(b);
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t1;
ALTER TABLE t1 RENAME COLUMN b TO bb;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t1;
SELECT * FROM t1;

# Rename with Foreign keys.
CREATE TABLE t3(a int, b int, KEY(b));
ALTER TABLE t3 ADD CONSTRAINT FOREIGN KEY(b) REFERENCES t1(bb);
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t3;
ALTER TABLE t1 RENAME COLUMN bb TO b;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t1;
ALTER TABLE t3 RENAME COLUMN b TO c;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t3;

# Different Algorithm
CREATE TABLE t4(a int);
ALTER TABLE t4 RENAME COLUMN a TO aa, ALGORITHM = INPLACE;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t4;
ALTER TABLE t4 RENAME COLUMN aa TO a, ALGORITHM = COPY;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t4;
DROP TABLE t4;

# View, Trigger and SP
CREATE VIEW v1 AS SELECT d,e,f FROM t2;
CREATE TRIGGER trg1 BEFORE UPDATE on t2 FOR EACH ROW SET NEW.d=OLD.d + 10;
CREATE PROCEDURE sp1() INSERT INTO t2(d) VALUES(10);
ALTER TABLE t2 RENAME COLUMN d TO g;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t2;
SHOW CREATE VIEW v1;
--error ER_VIEW_INVALID
SELECT * FROM v1;
--error ER_BAD_FIELD_ERROR
UPDATE t2 SET f = f + 10;
--error ER_BAD_FIELD_ERROR
CALL sp1();
DROP TRIGGER trg1;
DROP PROCEDURE sp1;

# Generated Columns
if (!$MTR_COMBINATION_HEAP)
{
CREATE TABLE t_gen(a INT, b DOUBLE GENERATED ALWAYS AS (SQRT(a)));
INSERT INTO t_gen(a) VALUES(4);
SELECT * FROM t_gen;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t_gen;
ALTER TABLE t_gen RENAME COLUMN a TO c, CHANGE COLUMN b b DOUBLE GENERATED ALWAYS AS (SQRT(c));
SELECT * FROM t_gen;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t_gen;
#--error ER_DEPENDENT_BY_GENERATED_COLUMN
ALTER TABLE t_gen CHANGE COLUMN c x INT;
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
show create table t_gen;
#--error ER_DEPENDENT_BY_GENERATED_COLUMN
ALTER TABLE t_gen RENAME COLUMN x TO a;
DROP TABLE t_gen;
}


#
# Negative tests
#
--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t1;

# Invalid Syntax
--error ER_PARSE_ERROR
ALTER TABLE t1 RENAME COLUMN b z;
--error ER_PARSE_ERROR
ALTER TABLE t1 RENAME COLUMN FROM b TO z;
--error ER_PARSE_ERROR
ALTER TABLE t1 RENAME COLUMN b TO 1;

# Duplicate column name
--error ER_BAD_FIELD_ERROR
ALTER TABLE t1 RENAME COLUMN b TO e, RENAME COLUMN c TO e;
--error ER_DUP_FIELDNAME
ALTER TABLE t1 ADD COLUMN z INT, RENAME COLUMN b TO z;

# Multiple operation on same column
--error ER_BAD_FIELD_ERROR
ALTER TABLE t1 DROP COLUMN b, RENAME COLUMN b TO z;
--error ER_BAD_FIELD_ERROR
ALTER TABLE t1 RENAME COLUMN b TO b, RENAME COLUMN b TO b;
--error ER_CANT_DROP_FIELD_OR_KEY
ALTER TABLE t1 RENAME COLUMN b TO c3, DROP COLUMN c3;
--error ER_BAD_FIELD_ERROR
ALTER TABLE t1 ADD COLUMN z INT, CHANGE COLUMN z y INT, DROP COLUMN y;
--error ER_BAD_FIELD_ERROR
ALTER TABLE t1 ADD COLUMN z INT, RENAME COLUMN z TO y, DROP COLUMN y;

# Invalid column name while renaming
--error ER_WRONG_COLUMN_NAME
ALTER TABLE t1 RENAME COLUMN b TO `nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn`;
# This error is different compared to ALTER TABLE ... CHANGE command
--error ER_TOO_LONG_IDENT
ALTER TABLE t1 CHANGE b `nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn` int;

--replace_result $default_engine DEFAULT_ENGINE " PAGE_CHECKSUM=1" ""
SHOW CREATE TABLE t1;
SELECT * FROM t1;

# Cleanup
DROP VIEW v1;
DROP TABLE t3,t1,t2;
SET DEFAULT_STORAGE_ENGINE= @save_default_engine;

--echo #
--echo # MDEV-7318 RENAME INDEX
--echo #

--echo #
--echo # 1) Tests for syntax and semantics of ALTER TABLE RENAME
--echo #    KEY/INDEX result.
--echo #
--echo # 1.a) Both RENAME KEY and RENAME INDEX variants should be
--echo #      allowed and produce expected results.
create table t1 (pk int primary key, i int, j int, key a(i));
alter table t1 rename key a to b;
show create table t1;
alter table t1 rename index b to c;
show create table t1;

--echo # 1.b) It should be impossible to rename index that doesn't
--echo #      exists, dropped or added within the same ALTER TABLE.
--error ER_KEY_DOES_NOT_EXISTS
alter table t1 rename key d to e;
alter table t1 rename key if exists d to e;
show create table t1;
--error ER_KEY_DOES_NOT_EXISTS
alter table t1 drop key c, rename key c to d;
show create table t1;
--error ER_KEY_DOES_NOT_EXISTS
alter table t1 add key d(j), rename key d to e;
show create table t1;

--echo # 1.c) It should be impossible to rename index to a name
--echo #      which is already used by another index, or is used
--echo #      by index which is added within the same ALTER TABLE.
alter table t1 add key d(j);
--error ER_DUP_KEYNAME
alter table t1 rename key c to d;
show create table t1;
alter table t1 drop key d;
--error ER_DUP_KEYNAME
alter table t1 add key d(j), rename key c to d;
show create table t1;

--echo # 1.d) It should be possible to rename index to a name
--echo #      which belongs to index which is dropped within the
--echo #      same ALTER TABLE.
alter table t1 add key d(j);
alter table t1 drop key c, rename key d to c;
show create table t1;

--echo # 1.e) We disallow renaming from/to PRIMARY as it might
--echo #      lead to some other key becoming "primary" internally,
--echo #      which will be interpreted as dropping/addition of
--echo #      primary key.
--error ER_PARSE_ERROR
alter table t1 rename key primary to d;
show create table t1;
--echo # Even using 'funny' syntax.
--error ER_WRONG_NAME_FOR_INDEX
alter table t1 rename key `primary` to d;
show create table t1;
--error ER_PARSE_ERROR
alter table t1 rename key c to primary;
show create table t1;
--error ER_WRONG_NAME_FOR_INDEX
alter table t1 rename key c to `primary`;
show create table t1;
drop table t1;


--echo #
--echo # 2) More complex tests for semantics of ALTER TABLE.
--echo #
--echo # 2.a) Check that standalone RENAME KEY works as expected
--echo #      for unique and non-unique indexes.
create table t1 (a int, unique u(a), b int, key k(b));
alter table t1 rename key u to uu;
show create table t1;
alter table t1 rename key k to kk;
show create table t1;

--echo # 2.b) Check how that this clause can be mixed with other
--echo #      clauses which don't affect key or its columns.
alter table t1 rename key kk to kkk, add column c int;
show create table t1;
alter table t1 rename key uu to uuu, add key c(c);
show create table t1;
alter table t1 rename key kkk to k, drop key uuu;
show create table t1;
alter table t1 rename key k to kk, rename to t2;
show create table t2;
drop table t2;


--echo #
--echo # 3) Test coverage for handling of RENAME INDEX clause in
--echo #    various storage engines and using different ALTER
--echo #    algorithm.
--echo #
--echo # 3.a) Test coverage for simple storage engines (MyISAM/Heap).
create table t1 (i int, key k(i)) engine=myisam;
insert into t1 values (1);
create table t2 (i int, key k(i)) engine=memory;
insert into t2 values (1);
--echo # MyISAM and Heap should be able to handle key renaming in-place.
alter table t1 algorithm=inplace, rename key k to kk;
alter table t2 algorithm=inplace, rename key k to kk;
show create table t1;
show create table t2;
--echo # So by default in-place algorithm should be chosen.
--echo # (ALTER TABLE should report 0 rows affected).
--enable_info
alter table t1 rename key kk to kkk;
alter table t2 rename key kk to kkk;
--disable_info
show create table t1;
show create table t2;
--echo # Copy algorithm should work as well.
alter table t1 algorithm=copy, rename key kkk to kkkk;
alter table t2 algorithm=copy, rename key kkk to kkkk;
show create table t1;
show create table t2;
--echo # When renaming is combined with other in-place operation
--echo # it still works as expected (i.e. works in-place).
alter table t1 algorithm=inplace, rename key kkkk to k, alter column i set default 100;
alter table t2 algorithm=inplace, rename key kkkk to k, alter column i set default 100;
show create table t1;
show create table t2;
--echo # Combining with non-inplace operation results in the whole ALTER
--echo # becoming non-inplace.
--error ER_ALTER_OPERATION_NOT_SUPPORTED
alter table t1 algorithm=inplace, rename key k to kk, add column j int;
--error ER_ALTER_OPERATION_NOT_SUPPORTED
alter table t2 algorithm=inplace, rename key k to kk, add column j int;
drop table t1, t2;

--echo # 3.b) Basic tests for InnoDB. More tests can be found in
--echo #      innodb.innodb_rename_index*
create table t1 (i int, key k(i)) engine=innodb;
insert into t1 values (1);
--echo # Basic rename, inplace algorithm should be chosen
--enable_info
alter table t1 algorithm=inplace, rename key k to kk;
--disable_info
show create table t1;
--echo # copy algorithm should work as well.
--enable_info
alter table t1 algorithm=copy, rename key kk to kkk;
--disable_info
show create table t1;
drop table t1;

--echo #
--echo # 4) Additional coverage for complex cases in which code
--echo #    in ALTER TABLE comparing old and new table version
--echo #    got confused.
--echo #
--echo # Once InnoDB starts to support in-place index renaming the result
--echo # of below statements should stay the same. Information about
--echo # indexes returned by SHOW CREATE TABLE (from .FRM) and by
--echo # InnoDB (from InnoDB data-dictionary) should be consistent.
--echo #
create table t1 ( a int, b int, c int, d int,
                  primary key (a), index i1 (b), index i2 (c) ) engine=innodb;
alter table t1 add index i1 (d), rename index i1 to x;
show create table t1;
select i.name as k, f.name as c from information_schema.innodb_sys_tables as t,
                                     information_schema.innodb_sys_indexes as i,
                                     information_schema.innodb_sys_fields as f
where t.name='test/t1' and t.table_id = i.table_id and i.index_id = f.index_id
order by k, c;
drop table t1;
create table t1 (a int, b int, c int, d int,
                 primary key (a), index i1 (b), index i2 (c)) engine=innodb;
alter table t1 add index i1 (d), rename index i1 to i2, drop index i2;
show create table t1;
select i.name as k, f.name as c from information_schema.innodb_sys_tables as t,
                                     information_schema.innodb_sys_indexes as i,
                                     information_schema.innodb_sys_fields as f
where t.name='test/t1' and t.table_id = i.table_id and i.index_id = f.index_id
order by k, c;
drop table t1;

--echo #
--echo # ALTER TABLE IF EXISTS
--echo #

create table t1 (a int);
alter table if exists t1 add column b int;
alter table if exists t2 add column c int;
alter table if exists t9 rename t1;
alter table if exists t1 rename t2;
show create table t2;
drop table t2;

--echo #
--echo # MDEV-22881 Unexpected errors, corrupt output, Valgrind / ASAN errors in Item_ident::print or append_identifier
--echo #
create table t1 (a int check (a >= 0));
lock tables t1 write;
alter table t1 rename column a to a;
alter table t1 rename key if exists x to xx;

# cleanup
unlock tables;
drop table t1;

--echo #
--echo # MDEV-23852 alter table rename column to uppercase doesn't work
--echo #
create table t1 (abc int);
alter table t1 rename column abc to Abc, algorithm=copy;
show create table t1;
alter table t1 rename column abc to ABc, algorithm=inplace;
show create table t1;
alter table t1 rename column abc to ABC;
show create table t1;
drop table t1;

--echo #
--echo # End of 10.5 tests
--echo #