analyze table tt;
Table	Op	Msg_type	Msg_text
test.tt	analyze	status	OK
set global tokudb_cardinality_scale_percent = 10;
show indexes from tt;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
tt	0	PRIMARY	1	a	A	4000	NULL	NULL		BTREE		
tt	1	b	1	b	A	4000	NULL	NULL	YES	BTREE		
tt	1	c	1	c	A	4000	NULL	NULL	YES	BTREE		
tt	1	d	1	d	A	4000	NULL	NULL	YES	BTREE		
set global tokudb_cardinality_scale_percent = 50;
show indexes from tt;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
tt	0	PRIMARY	1	a	A	4000	NULL	NULL		BTREE		
tt	1	b	1	b	A	4000	NULL	NULL	YES	BTREE		
tt	1	c	1	c	A	4000	NULL	NULL	YES	BTREE		
tt	1	d	1	d	A	2000	NULL	NULL	YES	BTREE		
set global tokudb_cardinality_scale_percent = 100;
show indexes from tt;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
tt	0	PRIMARY	1	a	A	4000	NULL	NULL		BTREE		
tt	1	b	1	b	A	4000	NULL	NULL	YES	BTREE		
tt	1	c	1	c	A	2000	NULL	NULL	YES	BTREE		
tt	1	d	1	d	A	1000	NULL	NULL	YES	BTREE		
set global tokudb_cardinality_scale_percent = 200;
Warnings:
Warning	1292	Truncated incorrect tokudb_cardinality_scale_percent value: '200'
show indexes from tt;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
tt	0	PRIMARY	1	a	A	4000	NULL	NULL		BTREE		
tt	1	b	1	b	A	4000	NULL	NULL	YES	BTREE		
tt	1	c	1	c	A	2000	NULL	NULL	YES	BTREE		
tt	1	d	1	d	A	1000	NULL	NULL	YES	BTREE