set @allowed_packet= @@max_allowed_packet;
SET GLOBAL max_allowed_packet=67108864;
connect  con1, localhost, root,,;
create table t1(a longblob unique, b longblob , c longblob , unique(b,c));
desc t1;
Field	Type	Null	Key	Default	Extra
a	longblob	YES	UNI	NULL	
b	longblob	YES	MUL	NULL	
c	longblob	YES		NULL	
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` longblob DEFAULT NULL,
  `b` longblob DEFAULT NULL,
  `c` longblob DEFAULT NULL,
  UNIQUE KEY `a` (`a`) USING HASH,
  UNIQUE KEY `b` (`b`,`c`) USING HASH
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
show keys from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment	Ignored
t1	0	a	1	a	A	NULL	NULL	NULL	YES	HASH			NO
t1	0	b	1	b	A	NULL	NULL	NULL	YES	HASH			NO
t1	0	b	2	c	A	NULL	NULL	NULL	YES	HASH			NO
insert into t1 values(concat(repeat('sachin',10000000),'1'),concat(repeat('sachin',10000000),'1'),
concat(repeat('sachin',10000000),'1'));
insert into t1 values(concat(repeat('sachin',10000000),'2'),concat(repeat('sachin',10000000),'2'),
concat(repeat('sachin',10000000),'1'));
insert into t1 values(concat(repeat('sachin',10000000),'2'),concat(repeat('sachin',10000000),'2'),
concat(repeat('sachin',10000000),'4'));
ERROR 23000: Duplicate entry 'sachinsachinsachinsachinsachinsachinsachinsachinsachinsachins...' for key 'a'
insert into t1 values(concat(repeat('sachin',10000000),'3'),concat(repeat('sachin',10000000),'1'),
concat(repeat('sachin',10000000),'1'));
ERROR 23000: Duplicate entry 'sachinsachinsachinsachinsachinsachinsachinsachinsachinsachins...' for key 'b'
drop table t1;
disconnect con1;
connection default;
set @@GLOBAL.max_allowed_packet= @allowed_packet;
# End of 10.4 tests
