Adding upstream version 1:10.11.6.upstream/1%10.11.6upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1905 insertions, 0 deletions

diff --git a/mysql-test/main/statistics.result b/mysql-test/main/statistics.result
new file mode 100644
index 00000000..f5ea0bf9
--- /dev/null
+++ b/mysql-test/main/statistics.result
@@ -0,0 +1,1905 @@
+set @SINGLE_PREC_TYPE='single_prec_hb';
+set @DOUBLE_PREC_TYPE='double_prec_hb';
+set @DEFAULT_HIST_TYPE='double_prec_hb';
+set @save_use_stat_tables=@@use_stat_tables;
+set @save_histogram_size=@@global.histogram_size;
+set @@global.histogram_size=0,@@local.histogram_size=0;
+set @save_hist_type=@DEFAULT_HIST_TYPE;
+set histogram_type=@SINGLE_PREC_TYPE;
+DELETE FROM mysql.table_stats;
+DELETE FROM mysql.column_stats;
+DELETE FROM mysql.index_stats;
+set use_stat_tables='preferably';
+CREATE TABLE t1 (
+a int NOT NULL PRIMARY KEY,
+b varchar(32),
+c char(16),
+d date,
+e double,
+f bit(3),
+INDEX idx1 (b, e), 
+INDEX idx2 (c, d),
+INDEX idx3 (d),
+INDEX idx4 (e, b, d)
+) ENGINE= MYISAM;
+INSERT INTO t1 VALUES
+(0, NULL, NULL, NULL, NULL, NULL),
+(7, 'xxxxxxxxxxxxxxxxxxxxxxxxxx', 'dddddddd', '1990-05-15', 0.1, b'100'),
+(17, 'vvvvvvvvvvvvv', 'aaaa', '1989-03-12', 0.01, b'101'),
+(1, 'vvvvvvvvvvvvv', NULL, '1989-03-12', 0.01, b'100'),
+(12, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww', 'dddddddd', '1999-07-23', 0.112, b'001'),
+(23, 'vvvvvvvvvvvvv', 'dddddddd', '1999-07-23', 0.1, b'100'),
+(8, 'vvvvvvvvvvvvv', 'aaaa', '1999-07-23', 0.1, b'100'),
+(22, 'xxxxxxxxxxxxxxxxxxxxxxxxxx', 'aaaa', '1989-03-12', 0.112, b'001'),
+(31, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww', 'aaaa', '1999-07-23', 0.01, b'001'),
+(10, NULL, 'aaaa', NULL, 0.01, b'010'),
+(5, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww', 'dddddddd', '1999-07-23', 0.1, b'100'),
+(15, 'vvvvvvvvvvvvv', 'ccccccccc', '1990-05-15', 0.1, b'010'),
+(30, NULL, 'bbbbbb', NULL, NULL, b'100'),
+(38, 'zzzzzzzzzzzzzzzzzz', 'bbbbbb', NULL, NULL, NULL),
+(18, 'zzzzzzzzzzzzzzzzzz', 'ccccccccc', '1990-05-15', 0.01, b'010'),
+(9, 'yyy', 'bbbbbb', '1998-08-28', 0.01, NULL),
+(29, 'vvvvvvvvvvvvv', 'dddddddd', '1999-07-23', 0.012, b'010'),
+(3, 'yyy', 'dddddddd',  '1990-05-15', 0.112, b'010'),
+(39, 'zzzzzzzzzzzzzzzzzz', 'bbbbbb', NULL, 0.01, b'100'),
+(14, 'xxxxxxxxxxxxxxxxxxxxxxxxxx', 'ccccccccc', '1990-05-15', 0.1, b'100'),
+(40, 'zzzzzzzzzzzzzzzzzz', 'bbbbbb', '1989-03-12', NULL, NULL),
+(44, NULL, 'aaaa', '1989-03-12', NULL, b'010'),
+(19, 'vvvvvvvvvvvvv', 'ccccccccc', '1990-05-15', 0.012, b'011'),
+(21, 'zzzzzzzzzzzzzzzzzz', 'dddddddd', '1989-03-12', 0.112, b'100'),
+(45, NULL, NULL, '1989-03-12', NULL, b'011'),
+(2, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww', 'ccccccccc', '1990-05-15', 0.1, b'001'),
+(35, 'yyy', 'aaaa', '1990-05-15', 0.05, b'011'),
+(4, 'vvvvvvvvvvvvv', 'dddddddd', '1999-07-23', 0.01, b'101'),
+(47, NULL, 'aaaa', '1990-05-15', 0.05, b'010'),
+(42, NULL, 'ccccccccc', '1989-03-12', 0.01, b'010'),
+(32, NULL, 'bbbbbb', '1990-05-15', 0.01, b'011'),
+(49, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww' , 'aaaa', '1990-05-15', NULL, NULL),
+(43, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww' , 'bbbbbb', '1990-05-15', NULL, b'100'),
+(37, 'yyy', NULL, '1989-03-12', 0.05, b'011'),
+(41, 'xxxxxxxxxxxxxxxxxxxxxxxxxx', 'ccccccccc', '1990-05-15', 0.05, NULL),
+(34, 'yyy', NULL, NULL, NULL, NULL),
+(33, 'zzzzzzzzzzzzzzzzzz', 'dddddddd', '1989-03-12', 0.05, b'011'),
+(24,  'wwwwwwwwwwwwwwwwwwwwwwwwwwww', 'dddddddd', '1990-05-15', 0.01,  b'101'),
+(11, 'yyy', 'ccccccccc', '1999-07-23', 0.1, NULL),
+(25, 'zzzzzzzzzzzzzzzzzz', 'bbb', '1989-03-12', 0.01,  b'101');
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+SELECT * FROM mysql.table_stats;
+db_name	table_name	cardinality
+test	t1	40
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx1	1	6.4000
+test	t1	idx1	2	1.6875
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx3	1	8.5000
+test	t1	idx4	1	6.2000
+test	t1	idx4	2	1.6875
+test	t1	idx4	3	1.1304
+SELECT COUNT(*) FROM t1;
+COUNT(*)
+40
+SELECT * FROM mysql.column_stats
+WHERE db_name='test' AND table_name='t1' AND column_name='a';
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+SELECT MIN(t1.a), MAX(t1.a), 
+(SELECT COUNT(*) FROM t1 WHERE t1.b IS NULL) /
+(SELECT COUNT(*) FROM t1) AS "NULLS_RATIO(t1.a)",
+(SELECT COUNT(t1.a) FROM t1) /
+(SELECT COUNT(DISTINCT t1.a) FROM t1) AS "AVG_FREQUENCY(t1.a)"
+FROM t1;
+MIN(t1.a)	MAX(t1.a)	NULLS_RATIO(t1.a)	AVG_FREQUENCY(t1.a)
+0	49	0.2000	1.0000
+SELECT * FROM mysql.column_stats
+WHERE db_name='test' AND table_name='t1' AND column_name='b';
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+SELECT MIN(t1.b), MAX(t1.b), 
+(SELECT COUNT(*) FROM t1 WHERE t1.b IS NULL) /
+(SELECT COUNT(*) FROM t1) AS "NULLS_RATIO(t1.b)",
+(SELECT COUNT(t1.b) FROM t1) /
+(SELECT COUNT(DISTINCT t1.b) FROM t1) AS "AVG_FREQUENCY(t1.b)"
+FROM t1;
+MIN(t1.b)	MAX(t1.b)	NULLS_RATIO(t1.b)	AVG_FREQUENCY(t1.b)
+vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	6.4000
+SELECT * FROM mysql.column_stats 
+WHERE db_name='test' AND table_name='t1' AND column_name='c';
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+SELECT MIN(t1.c), MAX(t1.c), 
+(SELECT COUNT(*) FROM t1 WHERE t1.c IS NULL) /
+(SELECT COUNT(*) FROM t1) AS "NULLS_RATIO(t1.c)",
+(SELECT COUNT(t1.c) FROM t1) /
+(SELECT COUNT(DISTINCT t1.c) FROM t1) AS "AVG_FREQUENCY(t1.c)"
+FROM t1;
+MIN(t1.c)	MAX(t1.c)	NULLS_RATIO(t1.c)	AVG_FREQUENCY(t1.c)
+aaaa	dddddddd	0.1250	7.0000
+SELECT * FROM mysql.column_stats
+WHERE db_name='test' AND table_name='t1' AND column_name='d';
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+SELECT MIN(t1.d), MAX(t1.d), 
+(SELECT COUNT(*) FROM t1 WHERE t1.d IS NULL) /
+(SELECT COUNT(*) FROM t1) AS "NULLS_RATIO(t1.d)",
+(SELECT COUNT(t1.d) FROM t1) /
+(SELECT COUNT(DISTINCT t1.d) FROM t1) AS "AVG_FREQUENCY(t1.d)"
+FROM t1;
+MIN(t1.d)	MAX(t1.d)	NULLS_RATIO(t1.d)	AVG_FREQUENCY(t1.d)
+1989-03-12	1999-07-23	0.1500	8.5000
+SELECT * FROM mysql.column_stats
+WHERE db_name='test' AND table_name='t1' AND column_name='e';
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+SELECT MIN(t1.e), MAX(t1.e), 
+(SELECT COUNT(*) FROM t1 WHERE t1.e IS NULL) /
+(SELECT COUNT(*) FROM t1) AS "NULLS_RATIO(t1.e)",
+(SELECT COUNT(t1.e) FROM t1) /
+(SELECT COUNT(DISTINCT t1.e) FROM t1) AS "AVG_FREQUENCY(t1.e)"
+FROM t1;
+MIN(t1.e)	MAX(t1.e)	NULLS_RATIO(t1.e)	AVG_FREQUENCY(t1.e)
+0.01	0.112	0.2250	6.2000
+SELECT * FROM mysql.index_stats
+WHERE db_name='test' AND table_name='t1' AND index_name='idx1';
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	idx1	1	6.4000
+test	t1	idx1	2	1.6875
+SELECT 
+(SELECT COUNT(*) FROM t1 WHERE t1.b IS NOT NULL) /
+(SELECT COUNT(DISTINCT t1.b) FROM t1 WHERE t1.b IS NOT NULL)
+AS 'ARITY 1',
+(SELECT COUNT(*) FROM t1 WHERE t1.b IS NOT NULL AND t1.e IS NOT NULL) /
+(SELECT COUNT(DISTINCT t1.b, t1.e) FROM t1
+WHERE t1.b IS NOT NULL AND t1.e IS NOT NULL) 
+AS 'ARITY 2';
+ARITY 1	ARITY 2
+6.4000	1.6875
+SELECT * FROM mysql.index_stats
+WHERE db_name='test' AND table_name='t1' AND index_name='idx2';
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+SELECT 
+(SELECT COUNT(*) FROM t1 WHERE t1.c IS NOT NULL) /
+(SELECT COUNT(DISTINCT t1.c) FROM t1 WHERE t1.c IS NOT NULL) 
+AS 'ARITY 1',
+(SELECT COUNT(*) FROM t1 WHERE t1.c IS NOT NULL AND t1.d IS NOT NULL) /
+(SELECT COUNT(DISTINCT t1.c, t1.d) FROM t1
+WHERE t1.c IS NOT NULL AND t1.d IS NOT NULL)
+AS 'ARITY 2';
+ARITY 1	ARITY 2
+7.0000	2.3846
+SELECT * FROM mysql.index_stats
+WHERE db_name='test' AND table_name='t1' AND index_name='idx3';
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	idx3	1	8.5000
+SELECT 
+(SELECT COUNT(*) FROM t1 WHERE t1.d IS NOT NULL) /
+(SELECT COUNT(DISTINCT t1.d) FROM t1 WHERE t1.d IS NOT NULL)
+AS 'ARITY 1';
+ARITY 1
+8.5000
+SELECT * FROM mysql.index_stats
+WHERE db_name='test' AND table_name='t1' AND index_name='idx4';
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	idx4	1	6.2000
+test	t1	idx4	2	1.6875
+test	t1	idx4	3	1.1304
+SELECT 
+(SELECT COUNT(*) FROM t1 WHERE t1.e IS NOT NULL) /
+(SELECT COUNT(DISTINCT t1.e) FROM t1 WHERE t1.e IS NOT NULL)
+AS 'ARITY 1',
+(SELECT COUNT(*) FROM t1 WHERE t1.e IS NOT NULL AND t1.b IS NOT NULL) /
+(SELECT COUNT(DISTINCT t1.e, t1.b) FROM t1
+WHERE t1.e IS NOT NULL AND t1.b IS NOT NULL)
+AS 'ARITY 2',
+(SELECT COUNT(*) FROM t1
+WHERE t1.e IS NOT NULL AND t1.b IS NOT NULL AND t1.d IS NOT NULL) /  
+(SELECT COUNT(DISTINCT t1.e, t1.b, t1.d) FROM t1
+WHERE t1.e IS NOT NULL AND t1.b IS NOT NULL AND t1.d IS NOT NULL)
+AS 'ARITY 3';
+ARITY 1	ARITY 2	ARITY 3
+6.2000	1.6875	1.1304
+DELETE FROM mysql.column_stats;
+set histogram_size=4;
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	Table is already up to date
+SELECT db_name, table_name, column_name,
+min_value, max_value,
+nulls_ratio, avg_frequency,
+hist_size, hist_type, decode_histogram(hist_type,histogram)
+FROM mysql.column_stats
+ORDER BY db_name, table_name, column_name;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_frequency	hist_size	hist_type	decode_histogram(hist_type,histogram)
+test	t1	a	0	49	0.0000	1.0000	NULL	NULL	NULL
+test	t1	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	6.4000	4	SINGLE_PREC_HB	0.000,0.247,0.502,0.251,0.000
+test	t1	c	aaaa	dddddddd	0.1250	7.0000	4	SINGLE_PREC_HB	0.000,0.333,0.333,0.333,0.000
+test	t1	d	1989-03-12	1999-07-23	0.1500	8.5000	4	SINGLE_PREC_HB	0.000,0.098,0.000,0.902,0.000
+test	t1	e	0.01	0.112	0.2250	6.2000	4	SINGLE_PREC_HB	0.000,0.020,0.373,0.490,0.118
+test	t1	f	1	5	0.2000	6.4000	4	SINGLE_PREC_HB	0.247,0.251,0.251,0.000,0.251
+DELETE FROM mysql.column_stats;
+set histogram_size=8;
+set histogram_type=@DOUBLE_PREC_TYPE;
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	Table is already up to date
+SELECT db_name, table_name, column_name,
+min_value, max_value,
+nulls_ratio, avg_frequency,
+hist_size, hist_type, decode_histogram(hist_type,histogram)
+FROM mysql.column_stats
+ORDER BY db_name, table_name, column_name;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_frequency	hist_size	hist_type	decode_histogram(hist_type,histogram)
+test	t1	a	0	49	0.0000	1.0000	NULL	NULL	NULL
+test	t1	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	6.4000	8	DOUBLE_PREC_HB	0.00000,0.24999,0.50001,0.25000,0.00000
+test	t1	c	aaaa	dddddddd	0.1250	7.0000	8	DOUBLE_PREC_HB	0.00000,0.33333,0.33333,0.33333,0.00000
+test	t1	d	1989-03-12	1999-07-23	0.1500	8.5000	8	DOUBLE_PREC_HB	0.00000,0.10161,0.00000,0.89839,0.00000
+test	t1	e	0.01	0.112	0.2250	6.2000	8	DOUBLE_PREC_HB	0.00000,0.01961,0.37255,0.49020,0.11765
+test	t1	f	1	5	0.2000	6.4000	8	DOUBLE_PREC_HB	0.24999,0.25000,0.25000,0.00000,0.25000
+DELETE FROM mysql.column_stats;
+set histogram_size= 0;
+set histogram_type=@SINGLE_PREC_TYPE;
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	Table is already up to date
+CREATE TABLE t3 (
+a int NOT NULL PRIMARY KEY,
+b varchar(32),
+c char(16),
+INDEX idx (c)
+) ENGINE=MYISAM;
+INSERT INTO t3 VALUES
+(0, NULL, NULL),
+(7, 'xxxxxxxxxxxxxxxxxxxxxxxxxx', 'dddddddd'),
+(17, 'vvvvvvvvvvvvv', 'aaaa'),
+(1, 'vvvvvvvvvvvvv', NULL),
+(12, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww', 'dddddddd'),
+(23, 'vvvvvvvvvvvvv', 'dddddddd'),
+(8, 'vvvvvvvvvvvvv', 'aaaa'),
+(22, 'xxxxxxxxxxxxxxxxxxxxxxxxxx', 'aaaa'),
+(31, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww', 'aaaa'),
+(10, NULL, 'aaaa'),
+(5, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww', 'dddddddd'),
+(15, 'vvvvvvvvvvvvv', 'ccccccccc'),
+(30, NULL, 'bbbbbb'),
+(38, 'zzzzzzzzzzzzzzzzzz', 'bbbbbb'),
+(18, 'zzzzzzzzzzzzzzzzzz', 'ccccccccc'),
+(9, 'yyy', 'bbbbbb'),
+(29, 'vvvvvvvvvvvvv', 'dddddddd');
+ANALYZE TABLE t3;
+Table	Op	Msg_type	Msg_text
+test.t3	analyze	status	Engine-independent statistics collected
+test.t3	analyze	status	OK
+SELECT * FROM mysql.table_stats;
+db_name	table_name	cardinality
+test	t1	40
+test	t3	17
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+test	t3	a	0	38	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t3	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.1765	18.0714	2.8000	0	NULL	NULL
+test	t3	c	aaaa	dddddddd	0.1176	6.4000	3.7500	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx1	1	6.4000
+test	t1	idx1	2	1.6875
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx3	1	8.5000
+test	t1	idx4	1	6.2000
+test	t1	idx4	2	1.6875
+test	t1	idx4	3	1.1304
+test	t3	PRIMARY	1	1.0000
+test	t3	idx	1	3.7500
+ALTER TABLE t1 RENAME TO s1;
+SELECT * FROM mysql.table_stats;
+db_name	table_name	cardinality
+test	s1	40
+test	t3	17
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	s1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	s1	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+test	s1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	s1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	s1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	s1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+test	t3	a	0	38	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t3	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.1765	18.0714	2.8000	0	NULL	NULL
+test	t3	c	aaaa	dddddddd	0.1176	6.4000	3.7500	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	s1	PRIMARY	1	1.0000
+test	s1	idx1	1	6.4000
+test	s1	idx1	2	1.6875
+test	s1	idx2	1	7.0000
+test	s1	idx2	2	2.3846
+test	s1	idx3	1	8.5000
+test	s1	idx4	1	6.2000
+test	s1	idx4	2	1.6875
+test	s1	idx4	3	1.1304
+test	t3	PRIMARY	1	1.0000
+test	t3	idx	1	3.7500
+RENAME TABLE s1 TO t1;
+SELECT * FROM mysql.table_stats;
+db_name	table_name	cardinality
+test	t1	40
+test	t3	17
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+test	t3	a	0	38	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t3	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.1765	18.0714	2.8000	0	NULL	NULL
+test	t3	c	aaaa	dddddddd	0.1176	6.4000	3.7500	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx1	1	6.4000
+test	t1	idx1	2	1.6875
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx3	1	8.5000
+test	t1	idx4	1	6.2000
+test	t1	idx4	2	1.6875
+test	t1	idx4	3	1.1304
+test	t3	PRIMARY	1	1.0000
+test	t3	idx	1	3.7500
+DROP TABLE t3;
+SELECT * FROM mysql.table_stats;
+db_name	table_name	cardinality
+test	t1	40
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx1	1	6.4000
+test	t1	idx1	2	1.6875
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx3	1	8.5000
+test	t1	idx4	1	6.2000
+test	t1	idx4	2	1.6875
+test	t1	idx4	3	1.1304
+CREATE TEMPORARY TABLE t0 (
+a int NOT NULL PRIMARY KEY,
+b varchar(32)
+);
+INSERT INTO t0 SELECT a,b FROM t1;
+ALTER TABLE t1 CHANGE COLUMN b x varchar(32), 
+CHANGE COLUMN e y double;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `x` varchar(32) DEFAULT NULL,
+  `c` char(16) DEFAULT NULL,
+  `d` date DEFAULT NULL,
+  `y` double DEFAULT NULL,
+  `f` bit(3) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `idx1` (`x`,`y`),
+  KEY `idx2` (`c`,`d`),
+  KEY `idx3` (`d`),
+  KEY `idx4` (`y`,`x`,`d`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+test	t1	x	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+test	t1	y	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+ALTER TABLE t1 CHANGE COLUMN x b varchar(32), 
+CHANGE COLUMN y e double;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` varchar(32) DEFAULT NULL,
+  `c` char(16) DEFAULT NULL,
+  `d` date DEFAULT NULL,
+  `e` double DEFAULT NULL,
+  `f` bit(3) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `idx1` (`b`,`e`),
+  KEY `idx2` (`c`,`d`),
+  KEY `idx3` (`d`),
+  KEY `idx4` (`e`,`b`,`d`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+ALTER TABLE t1 RENAME TO s1, CHANGE COLUMN b x varchar(32);
+SHOW CREATE TABLE s1;
+Table	Create Table
+s1	CREATE TABLE `s1` (
+  `a` int(11) NOT NULL,
+  `x` varchar(32) DEFAULT NULL,
+  `c` char(16) DEFAULT NULL,
+  `d` date DEFAULT NULL,
+  `e` double DEFAULT NULL,
+  `f` bit(3) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `idx1` (`x`,`e`),
+  KEY `idx2` (`c`,`d`),
+  KEY `idx3` (`d`),
+  KEY `idx4` (`e`,`x`,`d`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
+SELECT * FROM mysql.table_stats;
+db_name	table_name	cardinality
+test	s1	40
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	s1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	s1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	s1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	s1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	s1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+test	s1	x	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	s1	PRIMARY	1	1.0000
+test	s1	idx1	1	6.4000
+test	s1	idx1	2	1.6875
+test	s1	idx2	1	7.0000
+test	s1	idx2	2	2.3846
+test	s1	idx3	1	8.5000
+test	s1	idx4	1	6.2000
+test	s1	idx4	2	1.6875
+test	s1	idx4	3	1.1304
+ALTER TABLE s1 RENAME TO t1, CHANGE COLUMN x b varchar(32);
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` varchar(32) DEFAULT NULL,
+  `c` char(16) DEFAULT NULL,
+  `d` date DEFAULT NULL,
+  `e` double DEFAULT NULL,
+  `f` bit(3) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `idx1` (`b`,`e`),
+  KEY `idx2` (`c`,`d`),
+  KEY `idx3` (`d`),
+  KEY `idx4` (`e`,`b`,`d`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
+SELECT * FROM mysql.table_stats;
+db_name	table_name	cardinality
+test	t1	40
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx1	1	6.4000
+test	t1	idx1	2	1.6875
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx3	1	8.5000
+test	t1	idx4	1	6.2000
+test	t1	idx4	2	1.6875
+test	t1	idx4	3	1.1304
+ALTER TABLE t1 CHANGE COLUMN b x varchar(30);
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `x` varchar(30) DEFAULT NULL,
+  `c` char(16) DEFAULT NULL,
+  `d` date DEFAULT NULL,
+  `e` double DEFAULT NULL,
+  `f` bit(3) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `idx1` (`x`,`e`),
+  KEY `idx2` (`c`,`d`),
+  KEY `idx3` (`d`),
+  KEY `idx4` (`e`,`x`,`d`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx3	1	8.5000
+ANALYZE TABLE t1 PERSISTENT FOR COLUMNS(x) INDEXES();
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+SELECT * FROM mysql.column_stats where column_name="x";
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	x	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+ALTER TABLE t1 CHANGE COLUMN x b varchar(32);
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` varchar(32) DEFAULT NULL,
+  `c` char(16) DEFAULT NULL,
+  `d` date DEFAULT NULL,
+  `e` double DEFAULT NULL,
+  `f` bit(3) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `idx1` (`b`,`e`),
+  KEY `idx2` (`c`,`d`),
+  KEY `idx3` (`d`),
+  KEY `idx4` (`e`,`b`,`d`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx3	1	8.5000
+ANALYZE TABLE t1 PERSISTENT FOR COLUMNS(b) INDEXES(idx1, idx4);
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx1	1	6.4000
+test	t1	idx1	2	1.6875
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx3	1	8.5000
+test	t1	idx4	1	6.2000
+test	t1	idx4	2	1.6875
+test	t1	idx4	3	1.1304
+SELECT * INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/save_column_stats'
+  FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"' LINES TERMINATED BY '\n'
+  FROM mysql.column_stats WHERE column_name='b';
+SELECT * INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/save_index_stats'
+  FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"' LINES TERMINATED BY '\n'
+  FROM mysql.index_stats WHERE index_name IN ('idx1', 'idx4');
+ALTER TABLE t1 CHANGE COLUMN b x varchar(30);
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `x` varchar(30) DEFAULT NULL,
+  `c` char(16) DEFAULT NULL,
+  `d` date DEFAULT NULL,
+  `e` double DEFAULT NULL,
+  `f` bit(3) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `idx1` (`x`,`e`),
+  KEY `idx2` (`c`,`d`),
+  KEY `idx3` (`d`),
+  KEY `idx4` (`e`,`x`,`d`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx3	1	8.5000
+ALTER TABLE t1 CHANGE COLUMN x b varchar(32);
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `b` varchar(32) DEFAULT NULL,
+  `c` char(16) DEFAULT NULL,
+  `d` date DEFAULT NULL,
+  `e` double DEFAULT NULL,
+  `f` bit(3) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `idx1` (`b`,`e`),
+  KEY `idx2` (`c`,`d`),
+  KEY `idx3` (`d`),
+  KEY `idx4` (`e`,`b`,`d`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx3	1	8.5000
+LOAD DATA INFILE 'MYSQLTEST_VARDIR/tmp/save_column_stats' IGNORE
+INTO TABLE mysql.column_stats
+FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"' LINES TERMINATED BY '\n';
+LOAD DATA INFILE 'MYSQLTEST_VARDIR/tmp/save_index_stats'
+  INTO TABLE mysql.index_stats
+FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"' LINES TERMINATED BY '\n';
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx1	1	6.4000
+test	t1	idx1	2	1.6875
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx3	1	8.5000
+test	t1	idx4	1	6.2000
+test	t1	idx4	2	1.6875
+test	t1	idx4	3	1.1304
+ALTER TABLE t1 DROP COLUMN b;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `c` char(16) DEFAULT NULL,
+  `d` date DEFAULT NULL,
+  `e` double DEFAULT NULL,
+  `f` bit(3) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `idx1` (`e`),
+  KEY `idx2` (`c`,`d`),
+  KEY `idx3` (`d`),
+  KEY `idx4` (`e`,`d`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx3	1	8.5000
+DROP INDEX idx2 ON t1;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `c` char(16) DEFAULT NULL,
+  `d` date DEFAULT NULL,
+  `e` double DEFAULT NULL,
+  `f` bit(3) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `idx1` (`e`),
+  KEY `idx3` (`d`),
+  KEY `idx4` (`e`,`d`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx3	1	8.5000
+DROP INDEX idx1 ON t1;
+DROP INDEX idx4 ON t1;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `c` char(16) DEFAULT NULL,
+  `d` date DEFAULT NULL,
+  `e` double DEFAULT NULL,
+  `f` bit(3) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `idx3` (`d`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
+ALTER TABLE t1 ADD COLUMN b varchar(32);
+CREATE INDEX idx1 ON t1(b, e);
+CREATE INDEX idx2 ON t1(c, d);
+CREATE INDEX idx4 ON t1(e, b, d);
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `c` char(16) DEFAULT NULL,
+  `d` date DEFAULT NULL,
+  `e` double DEFAULT NULL,
+  `f` bit(3) DEFAULT NULL,
+  `b` varchar(32) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `idx3` (`d`),
+  KEY `idx1` (`b`,`e`),
+  KEY `idx2` (`c`,`d`),
+  KEY `idx4` (`e`,`b`,`d`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx3	1	8.5000
+ANALYZE TABLE t1 PERSISTENT FOR COLUMNS(b) INDEXES(idx1, idx2, idx4);
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	b	NULL	NULL	1.0000	NULL	NULL	0	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx1	1	NULL
+test	t1	idx1	2	NULL
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx3	1	8.5000
+test	t1	idx4	1	6.2000
+test	t1	idx4	2	NULL
+test	t1	idx4	3	NULL
+UPDATE t1 SET b=(SELECT b FROM t0 WHERE t0.a= t1.a);
+ANALYZE TABLE t1 PERSISTENT FOR COLUMNS(b) INDEXES(idx1, idx2, idx4);
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx1	1	6.4000
+test	t1	idx1	2	1.6875
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx3	1	8.5000
+test	t1	idx4	1	6.2000
+test	t1	idx4	2	1.6875
+test	t1	idx4	3	1.1304
+ALTER TABLE t1 DROP COLUMN b,
+DROP INDEX idx1, DROP INDEX idx2, DROP INDEX idx4;
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `c` char(16) DEFAULT NULL,
+  `d` date DEFAULT NULL,
+  `e` double DEFAULT NULL,
+  `f` bit(3) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `idx3` (`d`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx3	1	8.5000
+ALTER TABLE t1 ADD COLUMN b varchar(32);
+ALTER TABLE t1 
+ADD INDEX idx1 (b, e), ADD INDEX idx2 (c, d), ADD INDEX idx4 (e, b, d);
+UPDATE t1 SET b=(SELECT b FROM t0 WHERE t0.a= t1.a);
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) NOT NULL,
+  `c` char(16) DEFAULT NULL,
+  `d` date DEFAULT NULL,
+  `e` double DEFAULT NULL,
+  `f` bit(3) DEFAULT NULL,
+  `b` varchar(32) DEFAULT NULL,
+  PRIMARY KEY (`a`),
+  KEY `idx3` (`d`),
+  KEY `idx1` (`b`,`e`),
+  KEY `idx2` (`c`,`d`),
+  KEY `idx4` (`e`,`b`,`d`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx3	1	8.5000
+ANALYZE TABLE t1 PERSISTENT FOR COLUMNS(b) INDEXES(idx1, idx2, idx4);
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx1	1	6.4000
+test	t1	idx1	2	1.6875
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx3	1	8.5000
+test	t1	idx4	1	6.2000
+test	t1	idx4	2	1.6875
+test	t1	idx4	3	1.1304
+DELETE FROM mysql.table_stats;
+DELETE FROM mysql.column_stats;
+DELETE FROM mysql.index_stats;
+ANALYZE TABLE t1 PERSISTENT FOR COLUMNS() INDEXES();
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	Table is already up to date
+SELECT * FROM mysql.table_stats;
+db_name	table_name	cardinality
+test	t1	40
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+ANALYZE TABLE t1 PERSISTENT FOR COLUMNS(c,e,b) INDEXES(idx2,idx4);
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	Table is already up to date
+SELECT * FROM mysql.table_stats;
+db_name	table_name	cardinality
+test	t1	40
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx4	1	6.2000
+test	t1	idx4	2	1.6875
+test	t1	idx4	3	1.1304
+DELETE FROM mysql.index_stats WHERE table_name='t1' AND index_name='primary';
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx4	1	6.2000
+test	t1	idx4	2	1.6875
+test	t1	idx4	3	1.1304
+ANALYZE TABLE t1 PERSISTENT FOR COLUMNS() INDEXES(primary);
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	Table is already up to date
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx4	1	6.2000
+test	t1	idx4	2	1.6875
+test	t1	idx4	3	1.1304
+DELETE FROM mysql.table_stats;
+DELETE FROM mysql.column_stats;
+DELETE FROM mysql.index_stats;
+ANALYZE TABLE t1 PERSISTENT FOR COLUMNS ALL INDEXES ALL;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	Table is already up to date
+SELECT * FROM mysql.table_stats;
+db_name	table_name	cardinality
+test	t1	40
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx1	1	6.4000
+test	t1	idx1	2	1.6875
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx3	1	8.5000
+test	t1	idx4	1	6.2000
+test	t1	idx4	2	1.6875
+test	t1	idx4	3	1.1304
+CREATE TABLE t2 LIKE t1;
+ALTER TABLE t2 ENGINE=InnoDB;
+INSERT INTO t2 SELECT * FROM t1;
+set optimizer_switch='extended_keys=off';
+ANALYZE TABLE t2;
+Table	Op	Msg_type	Msg_text
+test.t2	analyze	status	Engine-independent statistics collected
+test.t2	analyze	status	OK
+SELECT * FROM mysql.table_stats;
+db_name	table_name	cardinality
+test	t1	40
+test	t2	40
+SELECT * FROM mysql.column_stats ORDER BY column_name, table_name;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t2	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+test	t2	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t2	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t2	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t2	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+test	t2	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats ORDER BY index_name, prefix_arity, table_name;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t2	PRIMARY	1	1.0000
+test	t1	idx1	1	6.4000
+test	t2	idx1	1	6.4000
+test	t1	idx1	2	1.6875
+test	t2	idx1	2	1.6875
+test	t1	idx2	1	7.0000
+test	t2	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t2	idx2	2	2.3846
+test	t1	idx3	1	8.5000
+test	t2	idx3	1	8.5000
+test	t1	idx4	1	6.2000
+test	t2	idx4	1	6.2000
+test	t1	idx4	2	1.6875
+test	t2	idx4	2	1.6875
+test	t1	idx4	3	1.1304
+test	t2	idx4	3	1.1304
+DELETE FROM mysql.table_stats;
+DELETE FROM mysql.column_stats;
+DELETE FROM mysql.index_stats;
+set optimizer_switch='extended_keys=on';
+ANALYZE TABLE t2;
+Table	Op	Msg_type	Msg_text
+test.t2	analyze	status	Engine-independent statistics collected
+test.t2	analyze	status	OK
+SELECT * FROM mysql.table_stats;
+db_name	table_name	cardinality
+test	t2	40
+SELECT * FROM mysql.column_stats ORDER BY column_name;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t2	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t2	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+test	t2	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t2	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t2	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t2	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats ORDER BY index_name, prefix_arity, table_name;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t2	PRIMARY	1	1.0000
+test	t2	idx1	1	6.4000
+test	t2	idx1	2	1.6875
+test	t2	idx1	3	1.0000
+test	t2	idx2	1	7.0000
+test	t2	idx2	2	2.3846
+test	t2	idx2	3	1.0000
+test	t2	idx3	1	8.5000
+test	t2	idx3	2	1.0000
+test	t2	idx4	1	6.2000
+test	t2	idx4	2	1.6875
+test	t2	idx4	3	1.1304
+test	t2	idx4	4	1.0000
+ALTER TABLE t2 DROP PRIMARY KEY, DROP INDEX idx1;
+SELECT * FROM mysql.index_stats ORDER BY index_name, prefix_arity, table_name;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t2	idx2	1	7.0000
+test	t2	idx2	2	2.3846
+test	t2	idx3	1	8.5000
+test	t2	idx4	1	6.2000
+test	t2	idx4	2	1.6875
+test	t2	idx4	3	1.1304
+UPDATE t2 SET b=0 WHERE b IS NULL;
+ALTER TABLE t2 ADD PRIMARY KEY (a,b);
+SELECT * FROM mysql.index_stats ORDER BY index_name, prefix_arity, table_name;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t2	idx2	1	7.0000
+test	t2	idx2	2	2.3846
+test	t2	idx3	1	8.5000
+test	t2	idx4	1	6.2000
+test	t2	idx4	2	1.6875
+test	t2	idx4	3	1.1304
+ANALYZE TABLE t2 PERSISTENT FOR COLUMNS() INDEXES ALL;
+Table	Op	Msg_type	Msg_text
+test.t2	analyze	status	Engine-independent statistics collected
+test.t2	analyze	status	OK
+SELECT * FROM mysql.index_stats ORDER BY index_name, prefix_arity, table_name;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t2	PRIMARY	1	1.0000
+test	t2	PRIMARY	2	1.0000
+test	t2	idx2	1	7.0000
+test	t2	idx2	2	2.3846
+test	t2	idx2	3	1.0000
+test	t2	idx2	4	1.0000
+test	t2	idx3	1	8.5000
+test	t2	idx3	2	1.0000
+test	t2	idx3	3	1.0000
+test	t2	idx4	1	6.2000
+test	t2	idx4	2	1.7222
+test	t2	idx4	3	1.1154
+test	t2	idx4	4	1.0000
+SELECT * FROM mysql.column_stats where column_name="b";
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t2	b	vvvvvvvvvvvvv	zzzzzzzzzzzzzzzzzz	0.2000	17.1250	6.4000	0	NULL	NULL
+ALTER TABLE t2 CHANGE COLUMN b b varchar(30);
+SELECT * FROM mysql.index_stats ORDER BY index_name, prefix_arity, table_name;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t2	idx2	1	7.0000
+test	t2	idx2	2	2.3846
+test	t2	idx3	1	8.5000
+SELECT * FROM mysql.column_stats where column_name="b";
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+ANALYZE TABLE t2 PERSISTENT FOR COLUMNS ALL INDEXES ALL;
+Table	Op	Msg_type	Msg_text
+test.t2	analyze	status	Engine-independent statistics collected
+test.t2	analyze	status	OK
+SELECT * FROM mysql.index_stats ORDER BY index_name, prefix_arity, table_name;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t2	PRIMARY	1	1.0000
+test	t2	PRIMARY	2	1.0000
+test	t2	idx2	1	7.0000
+test	t2	idx2	2	2.3846
+test	t2	idx2	3	1.0000
+test	t2	idx2	4	1.0000
+test	t2	idx3	1	8.5000
+test	t2	idx3	2	1.0000
+test	t2	idx3	3	1.0000
+test	t2	idx4	1	6.2000
+test	t2	idx4	2	1.7222
+test	t2	idx4	3	1.1154
+test	t2	idx4	4	1.0000
+ALTER TABLE t2 CHANGE COLUMN b b varchar(32);
+SELECT * FROM mysql.index_stats ORDER BY index_name, prefix_arity, table_name;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t2	PRIMARY	1	1.0000
+test	t2	PRIMARY	2	1.0000
+test	t2	idx2	1	7.0000
+test	t2	idx2	2	2.3846
+test	t2	idx2	3	1.0000
+test	t2	idx2	4	1.0000
+test	t2	idx3	1	8.5000
+test	t2	idx3	2	1.0000
+test	t2	idx3	3	1.0000
+test	t2	idx4	1	6.2000
+test	t2	idx4	2	1.7222
+test	t2	idx4	3	1.1154
+test	t2	idx4	4	1.0000
+SELECT * FROM mysql.column_stats where column_name="b";
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t2	b	0	zzzzzzzzzzzzzzzzzz	0.0000	13.9000	6.6667	0	NULL	NULL
+ANALYZE TABLE t2 PERSISTENT FOR COLUMNS ALL INDEXES ALL;
+Table	Op	Msg_type	Msg_text
+test.t2	analyze	status	Engine-independent statistics collected
+test.t2	analyze	status	OK
+SELECT * FROM mysql.index_stats ORDER BY index_name, prefix_arity, table_name;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t2	PRIMARY	1	1.0000
+test	t2	PRIMARY	2	1.0000
+test	t2	idx2	1	7.0000
+test	t2	idx2	2	2.3846
+test	t2	idx2	3	1.0000
+test	t2	idx2	4	1.0000
+test	t2	idx3	1	8.5000
+test	t2	idx3	2	1.0000
+test	t2	idx3	3	1.0000
+test	t2	idx4	1	6.2000
+test	t2	idx4	2	1.7222
+test	t2	idx4	3	1.1154
+test	t2	idx4	4	1.0000
+ALTER TABLE t2 DROP COLUMN b, DROP PRIMARY KEY, ADD PRIMARY KEY(a);
+SELECT * FROM mysql.index_stats ORDER BY index_name, prefix_arity, table_name;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t2	idx2	1	7.0000
+test	t2	idx2	2	2.3846
+test	t2	idx3	1	8.5000
+ANALYZE TABLE t2 PERSISTENT FOR COLUMNS() INDEXES ALL;
+Table	Op	Msg_type	Msg_text
+test.t2	analyze	status	Engine-independent statistics collected
+test.t2	analyze	status	OK
+SELECT * FROM mysql.index_stats ORDER BY index_name, prefix_arity, table_name;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t2	PRIMARY	1	1.0000
+test	t2	idx2	1	7.0000
+test	t2	idx2	2	2.3846
+test	t2	idx2	3	1.0000
+test	t2	idx3	1	8.5000
+test	t2	idx3	2	1.0000
+test	t2	idx4	1	6.2000
+test	t2	idx4	2	2.2308
+test	t2	idx4	3	1.0000
+set optimizer_switch='extended_keys=off';
+ALTER TABLE t1
+DROP INDEX idx1,
+DROP INDEX idx4;
+ALTER TABLE t1
+MODIFY COLUMN b text,
+ADD INDEX idx1 (b(4), e), 
+ADD INDEX idx4 (e, b(4), d);
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t2	a	0	49	0.0000	4.0000	1.0000	0	NULL	NULL
+test	t2	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t2	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t2	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t2	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t2	PRIMARY	1	1.0000
+test	t2	idx2	1	7.0000
+test	t2	idx2	2	2.3846
+test	t2	idx2	3	1.0000
+test	t2	idx3	1	8.5000
+test	t2	idx3	2	1.0000
+test	t2	idx4	1	6.2000
+test	t2	idx4	2	2.2308
+test	t2	idx4	3	1.0000
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	Warning	Engine-independent statistics are not collected for column 'b'
+test.t1	analyze	status	OK
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+test	t2	a	0	49	0.0000	4.0000	1.0000	0	NULL	NULL
+test	t2	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t2	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t2	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t2	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx1	1	NULL
+test	t1	idx1	2	NULL
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx3	1	8.5000
+test	t1	idx4	1	6.2000
+test	t1	idx4	2	NULL
+test	t1	idx4	3	NULL
+test	t2	PRIMARY	1	1.0000
+test	t2	idx2	1	7.0000
+test	t2	idx2	2	2.3846
+test	t2	idx2	3	1.0000
+test	t2	idx3	1	8.5000
+test	t2	idx3	2	1.0000
+test	t2	idx4	1	6.2000
+test	t2	idx4	2	2.2308
+test	t2	idx4	3	1.0000
+DELETE FROM mysql.table_stats;
+DELETE FROM mysql.column_stats;
+DELETE FROM mysql.index_stats;
+ANALYZE TABLE mysql.column_stats PERSISTENT FOR ALL;
+Table	Op	Msg_type	Msg_text
+mysql.column_stats	analyze	error	Invalid argument
+ANALYZE TABLE mysql.column_stats;
+Table	Op	Msg_type	Msg_text
+mysql.column_stats	analyze	status	OK
+SELECT * FROM mysql.table_stats;
+db_name	table_name	cardinality
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+set use_stat_tables='never';
+ANALYZE TABLE t1 PERSISTENT FOR ALL;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	Warning	Engine-independent statistics are not collected for column 'b'
+test.t1	analyze	status	Table is already up to date
+SELECT * FROM mysql.table_stats;
+db_name	table_name	cardinality
+test	t1	40
+SELECT * FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
+test	t1	a	0	49	0.0000	4.0000	1.0000	NULL	NULL	NULL
+test	t1	c	aaaa	dddddddd	0.1250	6.6571	7.0000	0	NULL	NULL
+test	t1	d	1989-03-12	1999-07-23	0.1500	3.0000	8.5000	0	NULL	NULL
+test	t1	e	0.01	0.112	0.2250	8.0000	6.2000	0	NULL	NULL
+test	t1	f	1	5	0.2000	1.0000	6.4000	0	NULL	NULL
+SELECT * FROM mysql.index_stats;
+db_name	table_name	index_name	prefix_arity	avg_frequency
+test	t1	PRIMARY	1	1.0000
+test	t1	idx1	1	NULL
+test	t1	idx1	2	NULL
+test	t1	idx2	1	7.0000
+test	t1	idx2	2	2.3846
+test	t1	idx3	1	8.5000
+test	t1	idx4	1	6.2000
+test	t1	idx4	2	NULL
+test	t1	idx4	3	NULL
+DELETE FROM mysql.table_stats;
+DELETE FROM mysql.column_stats;
+DELETE FROM mysql.index_stats;
+ANALYZE TABLE t1 PERSISTENT FOR COLUMNS(b) INDEXES();
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	Warning	Engine-independent statistics are not collected for column 'b'
+test.t1	analyze	status	Table is already up to date
+ANALYZE TABLE t1 PERSISTENT FOR columns(a,b) INDEXES();
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	Warning	Engine-independent statistics are not collected for column 'b'
+test.t1	analyze	status	Table is already up to date
+ANALYZE TABLE t1 PERSISTENT FOR columns(b) indexes(idx2);
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	Warning	Engine-independent statistics are not collected for column 'b'
+test.t1	analyze	status	Table is already up to date
+ANALYZE TABLE t1 PERSISTENT FOR columns() indexes(idx2);
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	Table is already up to date
+DELETE FROM mysql.table_stats;
+DELETE FROM mysql.column_stats;
+DELETE FROM mysql.index_stats;
+DROP TABLE t1,t2;
+set names utf8;
+CREATE DATABASE world;
+use world;
+CREATE TABLE Country (
+Code char(3) NOT NULL default '',
+Name char(52) NOT NULL default '',
+SurfaceArea float(10,2) NOT NULL default '0.00',
+Population int(11) NOT NULL default '0',
+Capital int(11) default NULL,
+PRIMARY KEY  (Code),
+UNIQUE INDEX (Name)
+) CHARACTER SET utf8 COLLATE utf8_bin;
+CREATE TABLE City (
+ID int(11) NOT NULL auto_increment,
+Name char(35) NOT NULL default '',
+Country char(3) NOT NULL default '',
+Population int(11) NOT NULL default '0',
+PRIMARY KEY  (ID),
+INDEX (Population),
+INDEX (Country) 
+) CHARACTER SET utf8 COLLATE utf8_bin;
+CREATE TABLE CountryLanguage (
+Country char(3) NOT NULL default '',
+Language char(30) NOT NULL default '',
+Percentage float(3,1) NOT NULL default '0.0',
+PRIMARY KEY  (Country, Language),
+INDEX (Percentage)
+) CHARACTER SET utf8 COLLATE utf8_bin;
+set use_stat_tables='preferably';
+ANALYZE TABLE Country, City, CountryLanguage;
+SELECT UPPER(db_name), UPPER(table_name), cardinality
+FROM mysql.table_stats;
+UPPER(db_name)	UPPER(table_name)	cardinality
+WORLD	CITY	4079
+WORLD	COUNTRY	239
+WORLD	COUNTRYLANGUAGE	984
+SELECT UPPER(db_name), UPPER(table_name), 
+column_name, min_value, max_value, nulls_ratio, avg_length, avg_frequency
+FROM mysql.column_stats;
+UPPER(db_name)	UPPER(table_name)	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency
+WORLD	CITY	Country	ABW	ZWE	0.0000	3.0000	17.5819
+WORLD	CITY	ID	1	4079	0.0000	4.0000	1.0000
+WORLD	CITY	Name	A Coruña (La Coruña)	Ürgenc	0.0000	8.6416	1.0195
+WORLD	CITY	Population	42	10500000	0.0000	4.0000	1.0467
+WORLD	COUNTRY	Capital	1	4074	0.0293	4.0000	1.0000
+WORLD	COUNTRY	Code	ABW	ZWE	0.0000	3.0000	1.0000
+WORLD	COUNTRY	Name	Afghanistan	Zimbabwe	0.0000	10.1172	1.0000
+WORLD	COUNTRY	Population	0	1277558000	0.0000	4.0000	1.0575
+WORLD	COUNTRY	SurfaceArea	0.40	17075400.00	0.0000	4.0000	1.0042
+WORLD	COUNTRYLANGUAGE	Country	ABW	ZWE	0.0000	3.0000	4.2232
+WORLD	COUNTRYLANGUAGE	Language	Abhyasi	[South]Mande	0.0000	7.1778	2.1532
+WORLD	COUNTRYLANGUAGE	Percentage	0.0	99.9	0.0000	4.0000	2.7640
+SELECT UPPER(db_name), UPPER(table_name),
+index_name, prefix_arity, avg_frequency
+FROM mysql.index_stats;
+UPPER(db_name)	UPPER(table_name)	index_name	prefix_arity	avg_frequency
+WORLD	CITY	Country	1	17.5819
+WORLD	CITY	PRIMARY	1	1.0000
+WORLD	CITY	Population	1	1.0467
+WORLD	COUNTRY	Name	1	1.0000
+WORLD	COUNTRY	PRIMARY	1	1.0000
+WORLD	COUNTRYLANGUAGE	PRIMARY	1	4.2232
+WORLD	COUNTRYLANGUAGE	PRIMARY	2	1.0000
+WORLD	COUNTRYLANGUAGE	Percentage	1	2.7640
+use test;
+set use_stat_tables='never';
+CREATE DATABASE world_innodb;
+use world_innodb;
+CREATE TABLE Country (
+Code char(3) NOT NULL default '',
+Name char(52) NOT NULL default '',
+SurfaceArea float(10,2) NOT NULL default '0.00',
+Population int(11) NOT NULL default '0',
+Capital int(11) default NULL,
+PRIMARY KEY  (Code),
+UNIQUE INDEX (Name)
+) CHARACTER SET utf8 COLLATE utf8_bin;
+CREATE TABLE City (
+ID int(11) NOT NULL auto_increment,
+Name char(35) NOT NULL default '',
+Country char(3) NOT NULL default '',
+Population int(11) NOT NULL default '0',
+PRIMARY KEY  (ID),
+INDEX (Population),
+INDEX (Country) 
+) CHARACTER SET utf8 COLLATE utf8_bin;
+CREATE TABLE CountryLanguage (
+Country char(3) NOT NULL default '',
+Language char(30) NOT NULL default '',
+Percentage float(3,1) NOT NULL default '0.0',
+PRIMARY KEY  (Country, Language),
+INDEX (Percentage)
+) CHARACTER SET utf8 COLLATE utf8_bin;
+ALTER TABLE Country ENGINE=InnoDB;
+ALTER TABLE City ENGINE=InnoDB;
+ALTER TABLE CountryLanguage ENGINE=InnoDB;
+set use_stat_tables='preferably';
+ANALYZE TABLE Country, City, CountryLanguage;
+SELECT UPPER(db_name), UPPER(table_name), cardinality
+FROM mysql.table_stats;
+UPPER(db_name)	UPPER(table_name)	cardinality
+WORLD	CITY	4079
+WORLD	COUNTRY	239
+WORLD	COUNTRYLANGUAGE	984
+WORLD_INNODB	CITY	4079
+WORLD_INNODB	COUNTRY	239
+WORLD_INNODB	COUNTRYLANGUAGE	984
+SELECT UPPER(db_name), UPPER(table_name), 
+column_name, min_value, max_value, nulls_ratio, avg_length, avg_frequency
+FROM mysql.column_stats;
+UPPER(db_name)	UPPER(table_name)	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency
+WORLD	CITY	Country	ABW	ZWE	0.0000	3.0000	17.5819
+WORLD	CITY	ID	1	4079	0.0000	4.0000	1.0000
+WORLD	CITY	Name	A Coruña (La Coruña)	Ürgenc	0.0000	8.6416	1.0195
+WORLD	CITY	Population	42	10500000	0.0000	4.0000	1.0467
+WORLD	COUNTRY	Capital	1	4074	0.0293	4.0000	1.0000
+WORLD	COUNTRY	Code	ABW	ZWE	0.0000	3.0000	1.0000
+WORLD	COUNTRY	Name	Afghanistan	Zimbabwe	0.0000	10.1172	1.0000
+WORLD	COUNTRY	Population	0	1277558000	0.0000	4.0000	1.0575
+WORLD	COUNTRY	SurfaceArea	0.40	17075400.00	0.0000	4.0000	1.0042
+WORLD	COUNTRYLANGUAGE	Country	ABW	ZWE	0.0000	3.0000	4.2232
+WORLD	COUNTRYLANGUAGE	Language	Abhyasi	[South]Mande	0.0000	7.1778	2.1532
+WORLD	COUNTRYLANGUAGE	Percentage	0.0	99.9	0.0000	4.0000	2.7640
+WORLD_INNODB	CITY	Country	ABW	ZWE	0.0000	3.0000	17.5819
+WORLD_INNODB	CITY	ID	1	4079	0.0000	4.0000	1.0000
+WORLD_INNODB	CITY	Name	A Coruña (La Coruña)	Ürgenc	0.0000	8.6416	1.0195
+WORLD_INNODB	CITY	Population	42	10500000	0.0000	4.0000	1.0467
+WORLD_INNODB	COUNTRY	Capital	1	4074	0.0293	4.0000	1.0000
+WORLD_INNODB	COUNTRY	Code	ABW	ZWE	0.0000	3.0000	1.0000
+WORLD_INNODB	COUNTRY	Name	Afghanistan	Zimbabwe	0.0000	10.1172	1.0000
+WORLD_INNODB	COUNTRY	Population	0	1277558000	0.0000	4.0000	1.0575
+WORLD_INNODB	COUNTRY	SurfaceArea	0.40	17075400.00	0.0000	4.0000	1.0042
+WORLD_INNODB	COUNTRYLANGUAGE	Country	ABW	ZWE	0.0000	3.0000	4.2232
+WORLD_INNODB	COUNTRYLANGUAGE	Language	Abhyasi	[South]Mande	0.0000	7.1778	2.1532
+WORLD_INNODB	COUNTRYLANGUAGE	Percentage	0.0	99.9	0.0000	4.0000	2.7640
+SELECT UPPER(db_name), UPPER(table_name),
+index_name, prefix_arity, avg_frequency
+FROM mysql.index_stats;
+UPPER(db_name)	UPPER(table_name)	index_name	prefix_arity	avg_frequency
+WORLD	CITY	Country	1	17.5819
+WORLD	CITY	PRIMARY	1	1.0000
+WORLD	CITY	Population	1	1.0467
+WORLD	COUNTRY	Name	1	1.0000
+WORLD	COUNTRY	PRIMARY	1	1.0000
+WORLD	COUNTRYLANGUAGE	PRIMARY	1	4.2232
+WORLD	COUNTRYLANGUAGE	PRIMARY	2	1.0000
+WORLD	COUNTRYLANGUAGE	Percentage	1	2.7640
+WORLD_INNODB	CITY	Country	1	17.5819
+WORLD_INNODB	CITY	PRIMARY	1	1.0000
+WORLD_INNODB	CITY	Population	1	1.0467
+WORLD_INNODB	COUNTRY	Name	1	1.0000
+WORLD_INNODB	COUNTRY	PRIMARY	1	1.0000
+WORLD_INNODB	COUNTRYLANGUAGE	PRIMARY	1	4.2232
+WORLD_INNODB	COUNTRYLANGUAGE	PRIMARY	2	1.0000
+WORLD_INNODB	COUNTRYLANGUAGE	Percentage	1	2.7640
+use world;
+set use_stat_tables='preferably';
+set histogram_size=100;
+set histogram_type=@SINGLE_PREC_TYPE;
+ANALYZE TABLE CountryLanguage;
+set histogram_size=254;
+set histogram_type=@DOUBLE_PREC_TYPE;
+ANALYZE TABLE City;
+FLUSH TABLES;
+select UPPER(db_name),UPPER(table_name),UPPER(column_name),min_value,max_value,nulls_ratio,avg_length,avg_frequency,hist_size,hist_type,decode_histogram(hist_type,histogram) from mysql.column_stats where UPPER(db_name)='WORLD' and UPPER(table_name)='COUNTRYLANGUAGE' and UPPER(column_name) = 'PERCENTAGE';;
+UPPER(db_name)	WORLD
+UPPER(table_name)	COUNTRYLANGUAGE
+UPPER(column_name)	PERCENTAGE
+min_value	0.0
+max_value	99.9
+nulls_ratio	0.0000
+avg_length	4.0000
+avg_frequency	2.7640
+hist_size	100
+hist_type	SINGLE_PREC_HB
+decode_histogram(hist_type,histogram)	0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.004,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.004,0.000,0.000,0.004,0.000,0.000,0.000,0.004,0.000,0.000,0.000,0.004,0.000,0.000,0.000,0.004,0.000,0.004,0.000,0.000,0.004,0.000,0.004,0.000,0.004,0.000,0.004,0.004,0.004,0.000,0.004,0.000,0.004,0.004,0.004,0.004,0.004,0.000,0.004,0.004,0.004,0.004,0.004,0.004,0.008,0.004,0.008,0.008,0.008,0.008,0.020,0.004,0.016,0.020,0.016,0.016,0.051,0.031,0.027,0.031,0.043,0.047,0.043,0.043,0.055,0.051,0.071,0.043,0.043,0.043,0.020,0.024,0.024,0.020,0.016,0.016,0.008,0.008,0.012,0.000
+select UPPER(db_name),UPPER(table_name),UPPER(column_name),min_value,max_value,nulls_ratio,avg_length,avg_frequency,hist_size,hist_type,decode_histogram(hist_type,histogram) from mysql.column_stats where UPPER(db_name)='WORLD' and UPPER(table_name)='CITY' and UPPER(column_name) = 'POPULATION';;
+UPPER(db_name)	WORLD
+UPPER(table_name)	CITY
+UPPER(column_name)	POPULATION
+min_value	42
+max_value	10500000
+nulls_ratio	0.0000
+avg_length	4.0000
+avg_frequency	1.0467
+hist_size	254
+hist_type	DOUBLE_PREC_HB
+decode_histogram(hist_type,histogram)	0.00047,0.00198,0.00601,0.00008,0.00008,0.00005,0.00011,0.00006,0.00009,0.00008,0.00006,0.00009,0.00008,0.00009,0.00008,0.00009,0.00006,0.00006,0.00008,0.00008,0.00008,0.00011,0.00009,0.00008,0.00009,0.00006,0.00011,0.00006,0.00012,0.00012,0.00012,0.00012,0.00011,0.00011,0.00014,0.00011,0.00011,0.00011,0.00014,0.00006,0.00011,0.00009,0.00011,0.00009,0.00015,0.00015,0.00015,0.00009,0.00018,0.00015,0.00015,0.00015,0.00017,0.00018,0.00018,0.00015,0.00018,0.00020,0.00024,0.00021,0.00023,0.00027,0.00024,0.00024,0.00027,0.00023,0.00020,0.00029,0.00020,0.00027,0.00020,0.00027,0.00026,0.00034,0.00024,0.00034,0.00031,0.00037,0.00043,0.00038,0.00038,0.00035,0.00047,0.00056,0.00058,0.00041,0.00047,0.00056,0.00072,0.00044,0.00060,0.00072,0.00061,0.00072,0.00066,0.00085,0.00075,0.00078,0.00082,0.00073,0.00108,0.00089,0.00105,0.00105,0.00151,0.00150,0.00110,0.00145,0.00163,0.00160,0.00165,0.00232,0.00201,0.00371,0.00365,0.00383,0.00459,0.00583,0.00662,0.00984,0.00969,0.01080,0.01379,0.02063,0.04308,0.05960,0.15816,0.59464
+set histogram_type=@SINGLE_PREC_TYPE;
+set histogram_size=0;
+use test;
+DROP DATABASE world;
+SELECT UPPER(db_name), UPPER(table_name), cardinality
+FROM mysql.table_stats;
+UPPER(db_name)	UPPER(table_name)	cardinality
+WORLD_INNODB	CITY	4079
+WORLD_INNODB	COUNTRY	239
+WORLD_INNODB	COUNTRYLANGUAGE	984
+SELECT UPPER(db_name), UPPER(table_name), 
+column_name, min_value, max_value, nulls_ratio, avg_length, avg_frequency
+FROM mysql.column_stats;
+UPPER(db_name)	UPPER(table_name)	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency
+WORLD_INNODB	CITY	Country	ABW	ZWE	0.0000	3.0000	17.5819
+WORLD_INNODB	CITY	ID	1	4079	0.0000	4.0000	1.0000
+WORLD_INNODB	CITY	Name	A Coruña (La Coruña)	Ürgenc	0.0000	8.6416	1.0195
+WORLD_INNODB	CITY	Population	42	10500000	0.0000	4.0000	1.0467
+WORLD_INNODB	COUNTRY	Capital	1	4074	0.0293	4.0000	1.0000
+WORLD_INNODB	COUNTRY	Code	ABW	ZWE	0.0000	3.0000	1.0000
+WORLD_INNODB	COUNTRY	Name	Afghanistan	Zimbabwe	0.0000	10.1172	1.0000
+WORLD_INNODB	COUNTRY	Population	0	1277558000	0.0000	4.0000	1.0575
+WORLD_INNODB	COUNTRY	SurfaceArea	0.40	17075400.00	0.0000	4.0000	1.0042
+WORLD_INNODB	COUNTRYLANGUAGE	Country	ABW	ZWE	0.0000	3.0000	4.2232
+WORLD_INNODB	COUNTRYLANGUAGE	Language	Abhyasi	[South]Mande	0.0000	7.1778	2.1532
+WORLD_INNODB	COUNTRYLANGUAGE	Percentage	0.0	99.9	0.0000	4.0000	2.7640
+SELECT UPPER(db_name), UPPER(table_name),
+index_name, prefix_arity, avg_frequency
+FROM mysql.index_stats;
+UPPER(db_name)	UPPER(table_name)	index_name	prefix_arity	avg_frequency
+WORLD_INNODB	CITY	Country	1	17.5819
+WORLD_INNODB	CITY	PRIMARY	1	1.0000
+WORLD_INNODB	CITY	Population	1	1.0467
+WORLD_INNODB	COUNTRY	Name	1	1.0000
+WORLD_INNODB	COUNTRY	PRIMARY	1	1.0000
+WORLD_INNODB	COUNTRYLANGUAGE	PRIMARY	1	4.2232
+WORLD_INNODB	COUNTRYLANGUAGE	PRIMARY	2	1.0000
+WORLD_INNODB	COUNTRYLANGUAGE	Percentage	1	2.7640
+DROP DATABASE world_innodb;
+SELECT UPPER(db_name), UPPER(table_name), cardinality
+FROM mysql.table_stats;
+UPPER(db_name)	UPPER(table_name)	cardinality
+SELECT UPPER(db_name), UPPER(table_name), 
+column_name, min_value, max_value, nulls_ratio, avg_length, avg_frequency
+FROM mysql.column_stats;
+UPPER(db_name)	UPPER(table_name)	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency
+SELECT UPPER(db_name), UPPER(table_name),
+index_name, prefix_arity, avg_frequency
+FROM mysql.index_stats;
+UPPER(db_name)	UPPER(table_name)	index_name	prefix_arity	avg_frequency
+DELETE FROM mysql.table_stats;
+DELETE FROM mysql.column_stats;
+DELETE FROM mysql.index_stats;
+#
+# Bug mdev-4357: empty string as a value of the HIST_SIZE column 
+#                from mysql.column_stats
+#
+create table t1 (a int);
+insert into t1 values (1),(2),(3);
+set histogram_size=10;
+analyze table t1  persistent for all;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+select db_name, table_name, column_name,
+min_value, max_value,
+nulls_ratio, avg_frequency,
+hist_size, hist_type, decode_histogram(hist_type,histogram)
+FROM mysql.column_stats
+ORDER BY db_name, table_name, column_name;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_frequency	hist_size	hist_type	decode_histogram(hist_type,histogram)
+test	t1	a	1	3	0.0000	1.0000	10	SINGLE_PREC_HB	0.000,0.000,0.000,0.498,0.000,0.000,0.000,0.502,0.000,0.000,0.000
+set histogram_size=default;
+drop table t1;
+#
+# Bug mdev-4359: wrong setting of the HIST_SIZE column 
+# (see also mdev-4357)         from mysql.column_stats
+#
+create table t1 ( a int);
+insert into t1 values (1),(2),(3),(4),(5);
+set histogram_size=10;
+set histogram_type=@DOUBLE_PREC_TYPE;
+show variables like 'histogram%';
+Variable_name	Value
+histogram_size	10
+histogram_type	DOUBLE_PREC_HB
+analyze table t1 persistent for all;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+select db_name, table_name, column_name,
+min_value, max_value,
+nulls_ratio, avg_frequency,
+hist_size, hist_type, decode_histogram(hist_type,histogram)
+FROM mysql.column_stats
+ORDER BY db_name, table_name, column_name;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_frequency	hist_size	hist_type	decode_histogram(hist_type,histogram)
+test	t1	a	1	5	0.0000	1.0000	10	DOUBLE_PREC_HB	0.00000,0.24999,0.25000,0.25000,0.25000,0.00000
+set histogram_size=0;
+set histogram_type=@SINGLE_PREC_TYPE;
+drop table t1;
+#
+# Bug mdev-4369: histogram for a column with many distinct values 
+#
+CREATE TABLE t1 (id int);
+CREATE TABLE t2 (id int);
+INSERT INTO t1 (id) VALUES (1), (1), (1),(1);
+INSERT INTO t1 (id) SELECT id FROM t1;
+INSERT INTO t1 SELECT id+1 FROM t1;
+INSERT INTO t1 SELECT id+2 FROM t1;
+INSERT INTO t1 SELECT id+4 FROM t1;
+INSERT INTO t1 SELECT id+8 FROM t1;
+INSERT INTO t1 SELECT id+16 FROM t1;
+INSERT INTO t1 SELECT id+32 FROM t1;
+INSERT INTO t1 SELECT id+64 FROM t1;
+INSERT INTO t1 SELECT id+128 FROM t1;
+INSERT INTO t1 SELECT id+256 FROM t1;
+INSERT INTO t1 SELECT id+512 FROM t1;
+INSERT INTO t2 SELECT id FROM t1 ORDER BY id*rand();
+SELECT COUNT(*) FROM t2;
+COUNT(*)
+8192
+SELECT COUNT(DISTINCT id) FROM t2;
+COUNT(DISTINCT id)
+1024
+set @@tmp_table_size=1024*16;
+set @@max_heap_table_size=1024*16;
+set histogram_size=63;
+analyze table t2 persistent for all;
+Table	Op	Msg_type	Msg_text
+test.t2	analyze	status	Engine-independent statistics collected
+test.t2	analyze	status	OK
+select db_name, table_name, column_name,
+min_value, max_value,
+nulls_ratio, avg_frequency,
+hist_size, hist_type, decode_histogram(hist_type,histogram)
+FROM mysql.column_stats;
+db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_frequency	hist_size	hist_type	decode_histogram(hist_type,histogram)
+test	t2	id	1	1024	0.0000	8.0000	63	SINGLE_PREC_HB	0.012,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016,0.016
+set histogram_size=0;
+drop table t1, t2;
+set use_stat_tables=@save_use_stat_tables;
+#
+# Bug MDEV-7383: min/max value for a column not utf8 compatible
+#
+create table t1 (a varchar(100)) engine=MyISAM;
+insert into t1 values(unhex('D879626AF872675F73E662F8'));
+analyze table t1 persistent for all;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+show warnings;
+Level	Code	Message
+select db_name, table_name, column_name,
+HEX(min_value), HEX(max_value),
+nulls_ratio, avg_frequency,
+hist_size, hist_type, decode_histogram(hist_type,histogram)
+FROM mysql.column_stats;
+db_name	table_name	column_name	HEX(min_value)	HEX(max_value)	nulls_ratio	avg_frequency	hist_size	hist_type	decode_histogram(hist_type,histogram)
+test	t1	a	D879626AF872675F73E662F8	D879626AF872675F73E662F8	0.0000	1.0000	0	NULL	NULL
+drop table t1;
+#
+# MDEB-9744: session optimizer_use_condition_selectivity=5 causing SQL Error (1918):
+# Encountered illegal value '' when converting to DECIMAL
+#
+set @save_optimizer_use_condition_selectivity= @@optimizer_use_condition_selectivity;
+set optimizer_use_condition_selectivity=3, use_stat_tables=preferably;
+create table t1 (id int(10),cost decimal(9,2)) engine=innodb;
+ANALYZE TABLE t1 PERSISTENT FOR ALL;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+create temporary table t2  (id int);
+insert into t2 (id) select id from t1 where cost > 0;
+select * from t2;
+id
+set use_stat_tables=@save_use_stat_tables;
+set optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity;
+drop table t1,t2;
+#
+# MDEV-16507: statistics for temporary tables should not be used
+#
+SET
+@save_optimizer_use_condition_selectivity= @@optimizer_use_condition_selectivity;
+SET @@use_stat_tables = preferably ;
+SET @@optimizer_use_condition_selectivity = 4;
+CREATE TABLE t1 (
+TIMESTAMP TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
+ON UPDATE CURRENT_TIMESTAMP
+);
+SET @had_t1_table= @@warning_count != 0;
+CREATE TEMPORARY TABLE tmp_t1 LIKE t1;
+INSERT INTO tmp_t1 VALUES (now());
+INSERT INTO t1 SELECT * FROM tmp_t1 WHERE @had_t1_table=0;
+DROP TABLE t1;
+SET
+use_stat_tables=@save_use_stat_tables;
+SET
+optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity;
+# End of 10.0 tests
+#
+# MDEV-9590: Always print "Engine-independent statistic" warnings and
+# might be filtering columns unintentionally from engines
+#
+set use_stat_tables='NEVER';
+create table t1 (test blob);
+show variables like 'use_stat_tables';
+Variable_name	Value
+use_stat_tables	NEVER
+analyze table t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Table is already up to date
+drop table t1;
+#
+# MDEV-10435 crash with bad stat tables
+#
+set use_stat_tables='preferably';
+call mtr.add_suppression("Column count of mysql.table_stats is wrong. Expected 3, found 1. The table is probably corrupted");
+rename table mysql.table_stats to test.table_stats;
+flush tables;
+create table t1 (a int);
+rename table t1 to t2, t3 to t4;
+ERROR 42S02: Table 'test.t3' doesn't exist
+drop table t1;
+rename table test.table_stats to mysql.table_stats;
+rename table mysql.table_stats to test.table_stats;
+create table mysql.table_stats (a int);
+flush tables;
+create table t1 (a int);
+rename table t1 to t2, t3 to t4;
+ERROR 42S02: Table 'test.t3' doesn't exist
+drop table t1, mysql.table_stats;
+rename table test.table_stats to mysql.table_stats;
+#
+# MDEV-19334: bool is_eits_usable(Field*): Assertion `field->table->stats_is_read' failed.
+#
+create temporary table t1(a int);
+insert into t1 values (1),(2),(3);
+set use_stat_tables=preferably;
+set @optimizer_use_condition_selectivity= @@optimizer_use_condition_selectivity;
+set optimizer_use_condition_selectivity=4;
+select * from t1 where a >= 2;
+a
+2
+3
+drop table t1;
+set @@optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity;
+set use_stat_tables=@save_use_stat_tables;
+#
+# Start of 10.2 tests
+#
+#
+# MDEV-10134 Add full support for DEFAULT
+#
+CREATE TABLE t1 (a BLOB, b TEXT DEFAULT DECODE_HISTOGRAM(@SINGLE_PREC_TYPE,a));
+SHOW CREATE TABLE t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` blob DEFAULT NULL,
+  `b` text DEFAULT decode_histogram(@`SINGLE_PREC_TYPE`,`a`)
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
+INSERT INTO t1 (a) VALUES (0x0000000000000000000000000101010101010101010202020303030304040404050505050606070707080809090A0A0B0C0D0D0E0E0F10111213131415161718191B1C1E202224292A2E33373B4850575F6A76818C9AA7B9C4CFDADFE5EBF0F4F8FAFCFF);
+SELECT b FROM t1;
+b
+0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.004,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.000,0.004,0.000,0.000,0.004,0.000,0.000,0.000,0.004,0.000,0.000,0.000,0.004,0.000,0.000,0.000,0.004,0.000,0.004,0.000,0.000,0.004,0.000,0.004,0.000,0.004,0.000,0.004,0.004,0.004,0.000,0.004,0.000,0.004,0.004,0.004,0.004,0.004,0.000,0.004,0.004,0.004,0.004,0.004,0.004,0.008,0.004,0.008,0.008,0.008,0.008,0.020,0.004,0.016,0.020,0.016,0.016,0.051,0.031,0.027,0.031,0.043,0.047,0.043,0.043,0.055,0.051,0.071,0.043,0.043,0.043,0.020,0.024,0.024,0.020,0.016,0.016,0.008,0.008,0.012,0.000
+DROP TABLE t1;
+#
+# End of 10.2 tests
+#
+set histogram_size=@save_histogram_size, histogram_type=@save_hist_type;
+#
+# Start of 10.4 tests
+#
+#
+# Test analyze_sample_percentage system variable.
+#
+set @save_use_stat_tables=@@use_stat_tables;
+set @save_analyze_sample_percentage=@@analyze_sample_percentage;
+set session rand_seed1=42;
+set session rand_seed2=62;
+set use_stat_tables=PREFERABLY;
+set histogram_size=10;
+CREATE TABLE t1 (id int);
+INSERT INTO t1 (id) VALUES (1), (1), (1), (1), (1), (1), (1);
+INSERT INTO t1 (id) SELECT id FROM t1;
+INSERT INTO t1 SELECT id+1 FROM t1;
+INSERT INTO t1 SELECT id+2 FROM t1;
+INSERT INTO t1 SELECT id+4 FROM t1;
+INSERT INTO t1 SELECT id+8 FROM t1;
+INSERT INTO t1 SELECT id+16 FROM t1;
+INSERT INTO t1 SELECT id+32 FROM t1;
+INSERT INTO t1 SELECT id+64 FROM t1;
+INSERT INTO t1 SELECT id+128 FROM t1;
+INSERT INTO t1 SELECT id+256 FROM t1;
+INSERT INTO t1 SELECT id+512 FROM t1;
+INSERT INTO t1 SELECT id+1024 FROM t1;
+INSERT INTO t1 SELECT id+2048 FROM t1;
+INSERT INTO t1 SELECT id+4096 FROM t1;
+INSERT INTO t1 SELECT id+9192 FROM t1;
+#
+# This query will should show a full table scan analysis.
+#
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+select table_name, column_name, min_value, max_value, nulls_ratio, avg_length, avg_frequency,
+DECODE_HISTOGRAM(hist_type, histogram)
+from mysql.column_stats;
+table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	DECODE_HISTOGRAM(hist_type, histogram)
+t1	id	1	17384	0.0000	4.0000	14.0000	0.15705,0.15711,0.21463,0.15705,0.15711,0.15706
+set analyze_sample_percentage=0.1;
+#
+# This query will show an innacurate avg_frequency value.
+#
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	Table is already up to date
+select table_name, column_name, min_value, max_value, nulls_ratio, avg_length, avg_frequency,
+DECODE_HISTOGRAM(hist_type, histogram)
+from mysql.column_stats;
+table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	DECODE_HISTOGRAM(hist_type, histogram)
+t1	id	111	17026	0.0000	4.0000	10.4739	0.13649,0.14922,0.16921,0.21141,0.18355,0.15012
+#
+# This query will show a better avg_frequency value.
+#
+set analyze_sample_percentage=25;
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	Table is already up to date
+select table_name, column_name, min_value, max_value, nulls_ratio, avg_length, avg_frequency,
+DECODE_HISTOGRAM(hist_type, histogram)
+from mysql.column_stats;
+table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	DECODE_HISTOGRAM(hist_type, histogram)
+t1	id	1	17384	0.0000	4.0000	14.0401	0.15566,0.15590,0.15729,0.21538,0.15790,0.15787
+set analyze_sample_percentage=0;
+#
+# Test self adjusting sampling level.
+#
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	Table is already up to date
+select table_name, column_name, min_value, max_value, nulls_ratio, avg_length, avg_frequency,
+DECODE_HISTOGRAM(hist_type, histogram)
+from mysql.column_stats;
+table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	DECODE_HISTOGRAM(hist_type, histogram)
+t1	id	1	17384	0.0000	4.0000	13.9812	0.15860,0.15767,0.21515,0.15573,0.15630,0.15654
+#
+# Test record estimation is working properly.
+#
+select count(*) from t1;
+count(*)
+229376
+explain select * from t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	229060	
+set analyze_sample_percentage=100;
+ANALYZE TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	Table is already up to date
+select table_name, column_name, min_value, max_value, nulls_ratio, avg_length, avg_frequency,
+DECODE_HISTOGRAM(hist_type, histogram)
+from mysql.column_stats;
+table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	DECODE_HISTOGRAM(hist_type, histogram)
+t1	id	1	17384	0.0000	4.0000	14.0000	0.15705,0.15711,0.21463,0.15705,0.15711,0.15706
+explain select * from t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	229376	
+drop table t0;
+drop table t1;
+set analyze_sample_percentage=@save_analyze_sample_percentage;
+set histogram_size=@save_histogram_size;
+set use_stat_tables=@save_use_stat_tables;
+set @@global.histogram_size=@save_histogram_size;