call mtr.add_suppression("Table .* has a primary key in InnoDB data dictionary, but not in MariaDB");
call mtr.add_suppression("InnoDB: Table .* contains .* indexes inside InnoDB");
create table t1 (pk int, i int, key(i)) engine=InnoDB;
insert into t1 values (1,1),(2,2);
flush tables;
# Save the .frm file without the PK
alter table t1 add primary key (pk);
# Stop the server, replace the frm with the old one and restart the server
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `pk` int(11) DEFAULT NULL,
  `i` int(11) DEFAULT NULL,
  KEY `i` (`i`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
Warnings:
Warning	1082	InnoDB: Table test/t1 has a primary key in InnoDB data dictionary, but not in MariaDB!
Warning	1082	InnoDB: Table test/t1 contains 2 indexes inside InnoDB, which is different from the number of indexes 1 defined in the MariaDB 
select * from t1;
pk	i
1	1
2	2
alter table t1 add j int;
Warnings:
Warning	1082	InnoDB: Table test/t1 contains 2 indexes inside InnoDB, which is different from the number of indexes 1 defined in the MariaDB 
show warnings;
Level	Code	Message
Warning	1082	InnoDB: Table test/t1 contains 2 indexes inside InnoDB, which is different from the number of indexes 1 defined in the MariaDB 
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `pk` int(11) DEFAULT NULL,
  `i` int(11) DEFAULT NULL,
  `j` int(11) DEFAULT NULL,
  KEY `i` (`i`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
alter table t1 add primary key (pk);
show warnings;
Level	Code	Message
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `pk` int(11) NOT NULL,
  `i` int(11) DEFAULT NULL,
  `j` int(11) DEFAULT NULL,
  PRIMARY KEY (`pk`),
  KEY `i` (`i`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
drop table t1;