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Added histogams for table columns.

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This commit is contained in:
Igor Babaev
2013-03-25 23:48:29 -07:00
parent fc1c8ffdad
commit 1009832c13
23 changed files with 1328 additions and 339 deletions
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468
mysql-test/r/statistics.result
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@@ -64,13 +64,13 @@ 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
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
@@ -87,8 +87,8 @@ 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
test t1 a 0 49 0.0000 4.0000 1.0000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 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)",
@@ -99,8 +99,8 @@ 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
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000 0 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)",
@@ -111,8 +111,8 @@ 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
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 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)",
@@ -123,8 +123,8 @@ 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
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 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)",
@@ -135,8 +135,8 @@ 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
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 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)",
@@ -206,6 +206,28 @@ 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 Table is already up to date
SELECT db_name, table_name, column_name,
min_value, max_value,
nulls_ratio, avg_frequency,
hist_size, HEX(histogram)
FROM mysql.column_stats;
db_name table_name column_name min_value max_value nulls_ratio avg_frequency hist_size HEX(histogram)
test t1 a 0 49 0.0000 1.0000 4 2E62A1D0
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 6.4000 4 003FBFFF
test t1 c aaaa dddddddd 0.1250 7.0000 4 0055AAFF
test t1 d 1989-03-12 1999-07-23 0.1500 8.5000 4 009393FF
test t1 e 0.01 0.112 0.2250 6.2000 4 000564E1
test t1 f 1 5 0.2000 6.4000 4 3F7FBFBF
DELETE FROM mysql.column_stats;
set histogram_size= 0;
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status Table is already up to date
CREATE TABLE t3 (
a int NOT NULL PRIMARY KEY,
b varchar(32),
@@ -238,16 +260,16 @@ 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
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
test t3 a 0 38 0.0000 4.0000 1.0000
test t3 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.1765 18.0714 2.8000
test t3 c aaaa dddddddd 0.1176 6.4000 3.7500
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
test t3 a 0 38 0.0000 4.0000 1.0000 0 NULL
test t3 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.1765 18.0714 2.8000 0 NULL
test t3 c aaaa dddddddd 0.1176 6.4000 3.7500 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
@@ -267,16 +289,16 @@ 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
test s1 a 0 49 0.0000 4.0000 1.0000
test s1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000
test s1 c aaaa dddddddd 0.1250 6.6571 7.0000
test s1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test s1 e 0.01 0.112 0.2250 8.0000 6.2000
test s1 f 1 5 0.2000 1.0000 6.4000
test t3 a 0 38 0.0000 4.0000 1.0000
test t3 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.1765 18.0714 2.8000
test t3 c aaaa dddddddd 0.1176 6.4000 3.7500
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test s1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test s1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000 0 NULL
test s1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test s1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test s1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test s1 f 1 5 0.2000 1.0000 6.4000 0 NULL
test t3 a 0 38 0.0000 4.0000 1.0000 0 NULL
test t3 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.1765 18.0714 2.8000 0 NULL
test t3 c aaaa dddddddd 0.1176 6.4000 3.7500 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test s1 PRIMARY 1 1.0000
@@ -296,16 +318,16 @@ 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
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
test t3 a 0 38 0.0000 4.0000 1.0000
test t3 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.1765 18.0714 2.8000
test t3 c aaaa dddddddd 0.1176 6.4000 3.7500
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
test t3 a 0 38 0.0000 4.0000 1.0000 0 NULL
test t3 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.1765 18.0714 2.8000 0 NULL
test t3 c aaaa dddddddd 0.1176 6.4000 3.7500 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
@@ -324,13 +346,13 @@ 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
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
@@ -365,13 +387,13 @@ t1 CREATE TABLE `t1` (
KEY `idx4` (`y`,`x`,`d`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
SELECT * FROM mysql.column_stats;
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 x vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 y 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 x vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 y 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
ALTER TABLE t1 CHANGE COLUMN x b varchar(32),
CHANGE COLUMN y e double;
SHOW CREATE TABLE t1;
@@ -390,13 +412,13 @@ t1 CREATE TABLE `t1` (
KEY `idx4` (`e`,`b`,`d`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
SELECT * FROM mysql.column_stats;
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
ALTER TABLE t1 RENAME TO s1, CHANGE COLUMN b x varchar(32);
SHOW CREATE TABLE s1;
Table Create Table
@@ -417,13 +439,13 @@ 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
test s1 a 0 49 0.0000 4.0000 1.0000
test s1 x vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000
test s1 c aaaa dddddddd 0.1250 6.6571 7.0000
test s1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test s1 e 0.01 0.112 0.2250 8.0000 6.2000
test s1 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test s1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test s1 x vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000 0 NULL
test s1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test s1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test s1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test s1 f 1 5 0.2000 1.0000 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test s1 PRIMARY 1 1.0000
@@ -455,13 +477,13 @@ 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
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
@@ -490,12 +512,12 @@ t1 CREATE TABLE `t1` (
KEY `idx4` (`e`,`x`,`d`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
SELECT * FROM mysql.column_stats;
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
@@ -519,12 +541,12 @@ t1 CREATE TABLE `t1` (
KEY `idx4` (`e`,`b`,`d`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
SELECT * FROM mysql.column_stats;
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
@@ -535,13 +557,13 @@ ANALYZE TABLE t1 PERSISTENT FOR COLUMNS(b) INDEXES(idx1, idx4);
Table Op Msg_type Msg_text
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
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
@@ -576,12 +598,12 @@ t1 CREATE TABLE `t1` (
KEY `idx4` (`e`,`x`,`d`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
SELECT * FROM mysql.column_stats;
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
@@ -605,12 +627,12 @@ t1 CREATE TABLE `t1` (
KEY `idx4` (`e`,`b`,`d`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
SELECT * FROM mysql.column_stats;
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
@@ -624,13 +646,13 @@ 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
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
@@ -658,12 +680,12 @@ t1 CREATE TABLE `t1` (
KEY `idx4` (`e`,`d`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
SELECT * FROM mysql.column_stats;
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
@@ -721,12 +743,12 @@ t1 CREATE TABLE `t1` (
KEY `idx4` (`e`,`b`,`d`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
SELECT * FROM mysql.column_stats;
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
@@ -735,13 +757,13 @@ ANALYZE TABLE t1 PERSISTENT FOR COLUMNS(b) INDEXES(idx1, idx2, idx4);
Table Op Msg_type Msg_text
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
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 b NULL NULL 1.0000 NULL NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 b NULL NULL 1.0000 NULL NULL 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
@@ -758,13 +780,13 @@ ANALYZE TABLE t1 PERSISTENT FOR COLUMNS(b) INDEXES(idx1, idx2, idx4);
Table Op Msg_type Msg_text
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
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
@@ -790,12 +812,12 @@ t1 CREATE TABLE `t1` (
KEY `idx3` (`d`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
SELECT * FROM mysql.column_stats;
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
@@ -820,12 +842,12 @@ t1 CREATE TABLE `t1` (
KEY `idx4` (`e`,`b`,`d`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
SELECT * FROM mysql.column_stats;
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
@@ -834,13 +856,13 @@ ANALYZE TABLE t1 PERSISTENT FOR COLUMNS(b) INDEXES(idx1, idx2, idx4);
Table Op Msg_type Msg_text
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
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
@@ -862,7 +884,7 @@ 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
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size 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);
@@ -872,10 +894,10 @@ 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
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 idx2 1 7.0000
@@ -912,13 +934,13 @@ 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
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
@@ -942,19 +964,19 @@ db_name table_name cardinality
test t1 40
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
test t1 a 0 49 0.0000 4.0000 1.0000
test t2 a 0 49 0.0000 4.0000 1.0000
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000
test t2 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t2 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t2 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t2 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
test t2 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t2 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000 0 NULL
test t2 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t2 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t2 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t2 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
test t2 f 1 5 0.2000 1.0000 6.4000 0 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
@@ -986,13 +1008,13 @@ 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
test t2 a 0 49 0.0000 4.0000 1.0000
test t2 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000
test t2 c aaaa dddddddd 0.1250 6.6571 7.0000
test t2 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t2 e 0.01 0.112 0.2250 8.0000 6.2000
test t2 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t2 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t2 b vvvvvvvvvvvvv zzzzzzzzzzzzzzzzzz 0.2000 17.1250 6.4000 0 NULL
test t2 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t2 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t2 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t2 f 1 5 0.2000 1.0000 6.4000 0 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
@@ -1122,12 +1144,12 @@ 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
test t2 a 0 49 0.0000 4.0000 1.0000
test t2 c aaaa dddddddd 0.1250 6.6571 7.0000
test t2 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t2 e 0.01 0.112 0.2250 8.0000 6.2000
test t2 f 1 5 0.2000 1.0000 6.4000
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t2 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t2 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t2 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t2 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t2 f 1 5 0.2000 1.0000 6.4000 0 NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t2 idx3 1 8.5000
@@ -1143,18 +1165,18 @@ ANALYZE TABLE t1;
Table Op Msg_type Msg_text
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
test t2 a 0 49 0.0000 4.0000 1.0000
test t2 c aaaa dddddddd 0.1250 6.6571 7.0000
test t2 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t2 e 0.01 0.112 0.2250 8.0000 6.2000
test t2 f 1 5 0.2000 1.0000 6.4000
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
test t1 b NULL NULL 0.2000 17.1250 NULL
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t2 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t2 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t2 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t2 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t2 f 1 5 0.2000 1.0000 6.4000 0 NULL
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
test t1 b NULL NULL 0.2000 17.1250 NULL NULL NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t2 idx3 1 8.5000
@@ -1187,7 +1209,7 @@ 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
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
set use_stat_tables='never';
@@ -1198,13 +1220,13 @@ 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
test t1 a 0 49 0.0000 4.0000 1.0000
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
test t1 f 1 5 0.2000 1.0000 6.4000
test t1 b NULL NULL 0.2000 17.1250 NULL
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size histogram
test t1 a 0 49 0.0000 4.0000 1.0000 0 NULL
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000 0 NULL
test t1 d 1989-03-12 1999-07-23 0.1500 3.0000 8.5000 0 NULL
test t1 e 0.01 0.112 0.2250 8.0000 6.2000 0 NULL
test t1 f 1 5 0.2000 1.0000 6.4000 0 NULL
test t1 b NULL NULL 0.2000 17.1250 NULL NULL NULL
SELECT * FROM mysql.index_stats;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000