drop table if exists t1;
SET @OLD_SQL_MODE=@@SQL_MODE;
SET SQL_MODE='IGNORE_BAD_TABLE_OPTIONS';
create table t1 (a int fkey=vvv, key akey (a) dff=vvv) tkey1='1v1';
Warnings:
Warning	1911	Unknown option 'fkey'
Warning	1911	Unknown option 'dff'
Warning	1911	Unknown option 'tkey1'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL `fkey`=vvv,
  KEY `akey` (`a`) `dff`=vvv
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci `tkey1`='1v1'
drop table t1;
#reassiginig options in the same line
create table t1 (a int fkey=vvv, key akey (a) dff=vvv) tkey1=1v1 TKEY1=DEFAULT tkey1=1v2 tkey2=2v1;
Warnings:
Warning	1911	Unknown option 'fkey'
Warning	1911	Unknown option 'dff'
Warning	1911	Unknown option 'tkey1'
Warning	1911	Unknown option 'tkey2'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL `fkey`=vvv,
  KEY `akey` (`a`) `dff`=vvv
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci `tkey1`=1v2 `tkey2`=2v1
#add option
alter table t1 tkey4=4v1;
Warnings:
Warning	1911	Unknown option 'tkey4'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL `fkey`=vvv,
  KEY `akey` (`a`) `dff`=vvv
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci `tkey1`=1v2 `tkey2`=2v1 `tkey4`=4v1
#remove options 
alter table t1 tkey3=DEFAULT tkey4=DEFAULT;
Warnings:
Warning	1911	Unknown option 'tkey3'
Warning	1911	Unknown option 'tkey4'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL `fkey`=vvv,
  KEY `akey` (`a`) `dff`=vvv
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci `tkey1`=1v2 `tkey2`=2v1
drop table t1;
create table t1 (a int fkey1=v1, key akey (a) kkey1=v1) tkey1=1v1 tkey1=1v2 TKEY1=DEFAULT tkey2=2v1 tkey3=3v1;
Warnings:
Warning	1911	Unknown option 'fkey1'
Warning	1911	Unknown option 'kkey1'
Warning	1911	Unknown option 'TKEY1'
Warning	1911	Unknown option 'tkey2'
Warning	1911	Unknown option 'tkey3'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL `fkey1`=v1,
  KEY `akey` (`a`) `kkey1`=v1
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci `tkey2`=2v1 `tkey3`=3v1
#change field with option with the same value
alter table t1 change a a int `FKEY1`='v1';
Warnings:
Warning	1911	Unknown option 'FKEY1'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL `FKEY1`='v1',
  KEY `akey` (`a`) `kkey1`=v1
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci `tkey2`=2v1 `tkey3`=3v1
#change field with option with a different value
alter table t1 change a a int fkey1=v2;
Warnings:
Warning	1911	Unknown option 'fkey1'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL `fkey1`=v2,
  KEY `akey` (`a`) `kkey1`=v1
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci `tkey2`=2v1 `tkey3`=3v1
#new column no options
alter table t1 add column b int;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL `fkey1`=v2,
  `b` int(11) DEFAULT NULL,
  KEY `akey` (`a`) `kkey1`=v1
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci `tkey2`=2v1 `tkey3`=3v1
#new key with options
alter table t1 add key bkey (b) kkey2=v1;
Warnings:
Warning	1911	Unknown option 'kkey2'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL `fkey1`=v2,
  `b` int(11) DEFAULT NULL,
  KEY `akey` (`a`) `kkey1`=v1,
  KEY `bkey` (`b`) `kkey2`=v1
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci `tkey2`=2v1 `tkey3`=3v1
#new column with options
alter table t1 add column c int fkey1=v1 fkey2=v2;
Warnings:
Warning	1911	Unknown option 'fkey1'
Warning	1911	Unknown option 'fkey2'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL `fkey1`=v2,
  `b` int(11) DEFAULT NULL,
  `c` int(11) DEFAULT NULL `fkey1`=v1 `fkey2`=v2,
  KEY `akey` (`a`) `kkey1`=v1,
  KEY `bkey` (`b`) `kkey2`=v1
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci `tkey2`=2v1 `tkey3`=3v1
#new key no options
alter table t1 add key ckey (c);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL `fkey1`=v2,
  `b` int(11) DEFAULT NULL,
  `c` int(11) DEFAULT NULL `fkey1`=v1 `fkey2`=v2,
  KEY `akey` (`a`) `kkey1`=v1,
  KEY `bkey` (`b`) `kkey2`=v1,
  KEY `ckey` (`c`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci `tkey2`=2v1 `tkey3`=3v1
#drop column
alter table t1 drop b;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL `fkey1`=v2,
  `c` int(11) DEFAULT NULL `fkey1`=v1 `fkey2`=v2,
  KEY `akey` (`a`) `kkey1`=v1,
  KEY `ckey` (`c`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci `tkey2`=2v1 `tkey3`=3v1
#add column with options after delete
alter table t1 add column b int fkey2=v1;
Warnings:
Warning	1911	Unknown option 'fkey2'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL `fkey1`=v2,
  `c` int(11) DEFAULT NULL `fkey1`=v1 `fkey2`=v2,
  `b` int(11) DEFAULT NULL `fkey2`=v1,
  KEY `akey` (`a`) `kkey1`=v1,
  KEY `ckey` (`c`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci `tkey2`=2v1 `tkey3`=3v1
#add key 
alter table t1 add key bkey (b) kkey2=v2;
Warnings:
Warning	1911	Unknown option 'kkey2'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL `fkey1`=v2,
  `c` int(11) DEFAULT NULL `fkey1`=v1 `fkey2`=v2,
  `b` int(11) DEFAULT NULL `fkey2`=v1,
  KEY `akey` (`a`) `kkey1`=v1,
  KEY `ckey` (`c`),
  KEY `bkey` (`b`) `kkey2`=v2
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci `tkey2`=2v1 `tkey3`=3v1
drop table t1;
create table t1 (a int) tkey1=100;
Warnings:
Warning	1911	Unknown option 'tkey1'
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci `tkey1`=100
drop table t1;
#error on unknown option
SET SQL_MODE='';
create table t1 (a int fkey=vvv, key akey (a) dff=vvv) tkey1=1v1;
ERROR HY000: Unknown option 'fkey'
SET @@SQL_MODE=@OLD_SQL_MODE;