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Changed the type of all double columns in the system statistical tables

Browse Source 
mysql.column_stat, mysql.table_stat for the type DECIMAL(12,4).
When cached the values from these columns are multiplied by factor 10^5
and stored as ulong numbers now.
This commit is contained in:
Igor Babaev
2012-06-25 22:33:07 -07:00
parent f549f495f7
commit 4ff6fd34da
12 changed files with 339 additions and 325 deletions
Download Patch File Download Diff File Expand all files Collapse all files

126
mysql-test/r/stat_tables.result
View File

@ -17,34 +17,34 @@ dbt3_s001 region 5
dbt3_s001 supplier 10
select * from mysql.index_stat;
db_name table_name index_name prefix_arity avg_frequency
dbt3_s001 customer PRIMARY 1 1
dbt3_s001 customer i_c_nationkey 1 6
dbt3_s001 lineitem PRIMARY 1 4.003333333333333
dbt3_s001 lineitem PRIMARY 2 1
dbt3_s001 lineitem i_l_shipdate 1 2.650044130626655
dbt3_s001 lineitem i_l_suppkey_partkey 1 30.025
dbt3_s001 lineitem i_l_suppkey_partkey 2 8.57857142857143
dbt3_s001 lineitem i_l_partkey 1 30.025
dbt3_s001 lineitem i_l_suppkey 1 600.5
dbt3_s001 lineitem i_l_receiptdate 1 2.6477072310405645
dbt3_s001 lineitem i_l_orderkey 1 4.003333333333333
dbt3_s001 lineitem i_l_orderkey_quantity 1 4.003333333333333
dbt3_s001 lineitem i_l_orderkey_quantity 2 1.0403672903672905
dbt3_s001 lineitem i_l_commitdate 1 2.7159656264133876
dbt3_s001 nation PRIMARY 1 1
dbt3_s001 nation i_n_regionkey 1 5
dbt3_s001 orders PRIMARY 1 1
dbt3_s001 orders i_o_orderdate 1 1.3321492007104796
dbt3_s001 orders i_o_custkey 1 15
dbt3_s001 part PRIMARY 1 1
dbt3_s001 part i_p_retailprice 1 1
dbt3_s001 partsupp PRIMARY 1 3.5
dbt3_s001 partsupp PRIMARY 2 1
dbt3_s001 partsupp i_ps_partkey 1 3.5
dbt3_s001 partsupp i_ps_suppkey 1 70
dbt3_s001 region PRIMARY 1 1
dbt3_s001 supplier PRIMARY 1 1
dbt3_s001 supplier i_s_nationkey 1 1.1111111111111112
dbt3_s001 customer PRIMARY 1 1.0000
dbt3_s001 customer i_c_nationkey 1 6.0000
dbt3_s001 lineitem PRIMARY 1 4.0033
dbt3_s001 lineitem PRIMARY 2 1.0000
dbt3_s001 lineitem i_l_shipdate 1 2.6500
dbt3_s001 lineitem i_l_suppkey_partkey 1 30.0250
dbt3_s001 lineitem i_l_suppkey_partkey 2 8.5786
dbt3_s001 lineitem i_l_partkey 1 30.0250
dbt3_s001 lineitem i_l_suppkey 1 600.5000
dbt3_s001 lineitem i_l_receiptdate 1 2.6477
dbt3_s001 lineitem i_l_orderkey 1 4.0033
dbt3_s001 lineitem i_l_orderkey_quantity 1 4.0033
dbt3_s001 lineitem i_l_orderkey_quantity 2 1.0404
dbt3_s001 lineitem i_l_commitdate 1 2.7160
dbt3_s001 nation PRIMARY 1 1.0000
dbt3_s001 nation i_n_regionkey 1 5.0000
dbt3_s001 orders PRIMARY 1 1.0000
dbt3_s001 orders i_o_orderdate 1 1.3321
dbt3_s001 orders i_o_custkey 1 15.0000
dbt3_s001 part PRIMARY 1 1.0000
dbt3_s001 part i_p_retailprice 1 1.0000
dbt3_s001 partsupp PRIMARY 1 3.5000
dbt3_s001 partsupp PRIMARY 2 1.0000
dbt3_s001 partsupp i_ps_partkey 1 3.5000
dbt3_s001 partsupp i_ps_suppkey 1 70.0000
dbt3_s001 region PRIMARY 1 1.0000
dbt3_s001 supplier PRIMARY 1 1.0000
dbt3_s001 supplier i_s_nationkey 1 1.1111
set optimizer_switch=@save_optimizer_switch;
set @save_optimizer_switch=@@optimizer_switch;
set optimizer_switch='index_condition_pushdown=off';
@ -90,47 +90,47 @@ dbt3_s001 region 5
dbt3_s001 supplier 10
select * from mysql.index_stat;
db_name table_name index_name prefix_arity avg_frequency
dbt3_s001 customer PRIMARY 1 1
dbt3_s001 customer i_c_nationkey 1 6
dbt3_s001 lineitem PRIMARY 1 4.003333333333333
dbt3_s001 lineitem PRIMARY 2 1
dbt3_s001 lineitem i_l_shipdate 1 2.650044130626655
dbt3_s001 lineitem i_l_suppkey_partkey 1 30.025
dbt3_s001 lineitem i_l_suppkey_partkey 2 8.57857142857143
dbt3_s001 lineitem i_l_partkey 1 30.025
dbt3_s001 lineitem i_l_suppkey 1 600.5
dbt3_s001 lineitem i_l_receiptdate 1 2.6477072310405645
dbt3_s001 lineitem i_l_orderkey 1 4.003333333333333
dbt3_s001 lineitem i_l_orderkey_quantity 1 4.003333333333333
dbt3_s001 lineitem i_l_orderkey_quantity 2 1.0403672903672905
dbt3_s001 lineitem i_l_commitdate 1 2.7159656264133876
dbt3_s001 nation PRIMARY 1 1
dbt3_s001 nation i_n_regionkey 1 5
dbt3_s001 orders PRIMARY 1 1
dbt3_s001 orders i_o_orderdate 1 1.3321492007104796
dbt3_s001 orders i_o_custkey 1 15
dbt3_s001 part PRIMARY 1 1
dbt3_s001 part i_p_retailprice 1 1
dbt3_s001 partsupp PRIMARY 1 3.5
dbt3_s001 partsupp PRIMARY 2 1
dbt3_s001 partsupp i_ps_partkey 1 3.5
dbt3_s001 partsupp i_ps_suppkey 1 70
dbt3_s001 region PRIMARY 1 1
dbt3_s001 supplier PRIMARY 1 1
dbt3_s001 supplier i_s_nationkey 1 1.1111111111111112
dbt3_s001 customer PRIMARY 1 1.0000
dbt3_s001 customer i_c_nationkey 1 6.0000
dbt3_s001 lineitem PRIMARY 1 4.0033
dbt3_s001 lineitem PRIMARY 2 1.0000
dbt3_s001 lineitem i_l_shipdate 1 2.6500
dbt3_s001 lineitem i_l_suppkey_partkey 1 30.0250
dbt3_s001 lineitem i_l_suppkey_partkey 2 8.5786
dbt3_s001 lineitem i_l_partkey 1 30.0250
dbt3_s001 lineitem i_l_suppkey 1 600.5000
dbt3_s001 lineitem i_l_receiptdate 1 2.6477
dbt3_s001 lineitem i_l_orderkey 1 4.0033
dbt3_s001 lineitem i_l_orderkey_quantity 1 4.0033
dbt3_s001 lineitem i_l_orderkey_quantity 2 1.0404
dbt3_s001 lineitem i_l_commitdate 1 2.7160
dbt3_s001 nation PRIMARY 1 1.0000
dbt3_s001 nation i_n_regionkey 1 5.0000
dbt3_s001 orders PRIMARY 1 1.0000
dbt3_s001 orders i_o_orderdate 1 1.3321
dbt3_s001 orders i_o_custkey 1 15.0000
dbt3_s001 part PRIMARY 1 1.0000
dbt3_s001 part i_p_retailprice 1 1.0000
dbt3_s001 partsupp PRIMARY 1 3.5000
dbt3_s001 partsupp PRIMARY 2 1.0000
dbt3_s001 partsupp i_ps_partkey 1 3.5000
dbt3_s001 partsupp i_ps_suppkey 1 70.0000
dbt3_s001 region PRIMARY 1 1.0000
dbt3_s001 supplier PRIMARY 1 1.0000
dbt3_s001 supplier i_s_nationkey 1 1.1111
select * from mysql.table_stat where table_name='orders';
db_name table_name cardinality
dbt3_s001 orders 1500
select * from mysql.index_stat where table_name='orders';
db_name table_name index_name prefix_arity avg_frequency
dbt3_s001 orders PRIMARY 1 1
dbt3_s001 orders i_o_orderdate 1 1.3321492007104796
dbt3_s001 orders i_o_custkey 1 15
dbt3_s001 orders PRIMARY 1 1.0000
dbt3_s001 orders i_o_orderdate 1 1.3321
dbt3_s001 orders i_o_custkey 1 15.0000
select (select cardinality from mysql.table_stat where table_name='orders') /
(select avg_frequency from mysql.index_stat
where index_name='i_o_orderdate' and prefix_arity=1) as n_distinct;
n_distinct
1126
1126.0416
select count(distinct o_orderdate) from orders;
count(distinct o_orderdate)
1126
@ -138,20 +138,20 @@ select (select cardinality from mysql.table_stat where table_name='orders') /
(select avg_frequency from mysql.index_stat
where index_name='i_o_custkey' and prefix_arity=1) as n_distinct;
n_distinct
100
100.0000
select count(distinct o_custkey) from orders;
count(distinct o_custkey)
100
show index from orders;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment
orders 0 PRIMARY 1 o_orderkey A 1500 NULL NULL BTREE
orders 1 i_o_orderdate 1 o_orderDATE A 1127 NULL NULL YES BTREE
orders 1 i_o_orderdate 1 o_orderDATE A 1126 NULL NULL YES BTREE
orders 1 i_o_custkey 1 o_custkey A 100 NULL NULL YES BTREE
select index_name, column_name, cardinality from information_schema.statistics
where table_name='orders';
index_name column_name cardinality
PRIMARY o_orderkey 1500
i_o_orderdate o_orderDATE 1127
i_o_orderdate o_orderDATE 1126
i_o_custkey o_custkey 100
set @save_optimizer_switch=@@optimizer_switch;
set optimizer_switch='index_condition_pushdown=off';

174
mysql-test/r/stat_tables_innodb.result
View File

@ -20,34 +20,34 @@ dbt3_s001 region 5
dbt3_s001 supplier 10
select * from mysql.index_stat;
db_name table_name index_name prefix_arity avg_frequency
dbt3_s001 customer PRIMARY 1 1
dbt3_s001 customer i_c_nationkey 1 6
dbt3_s001 lineitem PRIMARY 1 4.003333333333333
dbt3_s001 lineitem PRIMARY 2 1
dbt3_s001 lineitem i_l_shipdate 1 2.650044130626655
dbt3_s001 lineitem i_l_suppkey_partkey 1 30.025
dbt3_s001 lineitem i_l_suppkey_partkey 2 8.57857142857143
dbt3_s001 lineitem i_l_partkey 1 30.025
dbt3_s001 lineitem i_l_suppkey 1 600.5
dbt3_s001 lineitem i_l_receiptdate 1 2.6477072310405645
dbt3_s001 lineitem i_l_orderkey 1 4.003333333333333
dbt3_s001 lineitem i_l_orderkey_quantity 1 4.003333333333333
dbt3_s001 lineitem i_l_orderkey_quantity 2 1.0403672903672905
dbt3_s001 lineitem i_l_commitdate 1 2.7159656264133876
dbt3_s001 nation PRIMARY 1 1
dbt3_s001 nation i_n_regionkey 1 5
dbt3_s001 orders PRIMARY 1 1
dbt3_s001 orders i_o_orderdate 1 1.3321492007104796
dbt3_s001 orders i_o_custkey 1 15
dbt3_s001 part PRIMARY 1 1
dbt3_s001 part i_p_retailprice 1 1
dbt3_s001 partsupp PRIMARY 1 3.5
dbt3_s001 partsupp PRIMARY 2 1
dbt3_s001 partsupp i_ps_partkey 1 3.5
dbt3_s001 partsupp i_ps_suppkey 1 70
dbt3_s001 region PRIMARY 1 1
dbt3_s001 supplier PRIMARY 1 1
dbt3_s001 supplier i_s_nationkey 1 1.1111111111111112
dbt3_s001 customer PRIMARY 1 1.0000
dbt3_s001 customer i_c_nationkey 1 6.0000
dbt3_s001 lineitem PRIMARY 1 4.0033
dbt3_s001 lineitem PRIMARY 2 1.0000
dbt3_s001 lineitem i_l_shipdate 1 2.6500
dbt3_s001 lineitem i_l_suppkey_partkey 1 30.0250
dbt3_s001 lineitem i_l_suppkey_partkey 2 8.5786
dbt3_s001 lineitem i_l_partkey 1 30.0250
dbt3_s001 lineitem i_l_suppkey 1 600.5000
dbt3_s001 lineitem i_l_receiptdate 1 2.6477
dbt3_s001 lineitem i_l_orderkey 1 4.0033
dbt3_s001 lineitem i_l_orderkey_quantity 1 4.0033
dbt3_s001 lineitem i_l_orderkey_quantity 2 1.0404
dbt3_s001 lineitem i_l_commitdate 1 2.7160
dbt3_s001 nation PRIMARY 1 1.0000
dbt3_s001 nation i_n_regionkey 1 5.0000
dbt3_s001 orders PRIMARY 1 1.0000
dbt3_s001 orders i_o_orderdate 1 1.3321
dbt3_s001 orders i_o_custkey 1 15.0000
dbt3_s001 part PRIMARY 1 1.0000
dbt3_s001 part i_p_retailprice 1 1.0000
dbt3_s001 partsupp PRIMARY 1 3.5000
dbt3_s001 partsupp PRIMARY 2 1.0000
dbt3_s001 partsupp i_ps_partkey 1 3.5000
dbt3_s001 partsupp i_ps_suppkey 1 70.0000
dbt3_s001 region PRIMARY 1 1.0000
dbt3_s001 supplier PRIMARY 1 1.0000
dbt3_s001 supplier i_s_nationkey 1 1.1111
set optimizer_switch=@save_optimizer_switch;
set @save_optimizer_switch=@@optimizer_switch;
set optimizer_switch='index_condition_pushdown=off';
@ -93,71 +93,71 @@ dbt3_s001 region 5
dbt3_s001 supplier 10
select * from mysql.index_stat;
db_name table_name index_name prefix_arity avg_frequency
dbt3_s001 customer PRIMARY 1 1
dbt3_s001 customer i_c_nationkey 1 6
dbt3_s001 customer i_c_nationkey 2 1
dbt3_s001 lineitem PRIMARY 1 4.003333333333333
dbt3_s001 lineitem PRIMARY 2 1
dbt3_s001 lineitem i_l_shipdate 1 2.650044130626655
dbt3_s001 lineitem i_l_shipdate 2 1.014872401554842
dbt3_s001 lineitem i_l_shipdate 3 1
dbt3_s001 lineitem i_l_suppkey_partkey 1 30.025
dbt3_s001 lineitem i_l_suppkey_partkey 2 8.57857142857143
dbt3_s001 lineitem i_l_suppkey_partkey 3 1.0030065141139135
dbt3_s001 lineitem i_l_suppkey_partkey 4 1
dbt3_s001 lineitem i_l_partkey 1 30.025
dbt3_s001 lineitem i_l_partkey 2 1.008904569892473
dbt3_s001 lineitem i_l_partkey 3 1
dbt3_s001 lineitem i_l_suppkey 1 600.5
dbt3_s001 lineitem i_l_suppkey 2 1.207277844792923
dbt3_s001 lineitem i_l_suppkey 3 1
dbt3_s001 lineitem i_l_receiptdate 1 2.6477072310405645
dbt3_s001 lineitem i_l_receiptdate 2 1.0152155536770922
dbt3_s001 lineitem i_l_receiptdate 3 1
dbt3_s001 lineitem i_l_orderkey 1 4.003333333333333
dbt3_s001 lineitem i_l_orderkey 2 1
dbt3_s001 lineitem i_l_orderkey_quantity 1 4.003333333333333
dbt3_s001 lineitem i_l_orderkey_quantity 2 1.0403672903672905
dbt3_s001 lineitem i_l_orderkey_quantity 3 1
dbt3_s001 lineitem i_l_commitdate 1 2.7159656264133876
dbt3_s001 lineitem i_l_commitdate 2 1.036416983085951
dbt3_s001 lineitem i_l_commitdate 3 1
dbt3_s001 nation PRIMARY 1 1
dbt3_s001 nation i_n_regionkey 1 5
dbt3_s001 nation i_n_regionkey 2 1
dbt3_s001 orders PRIMARY 1 1
dbt3_s001 orders i_o_orderdate 1 1.3321492007104796
dbt3_s001 orders i_o_orderdate 2 1
dbt3_s001 orders i_o_custkey 1 15
dbt3_s001 orders i_o_custkey 2 1
dbt3_s001 part PRIMARY 1 1
dbt3_s001 part i_p_retailprice 1 1
dbt3_s001 part i_p_retailprice 2 1
dbt3_s001 partsupp PRIMARY 1 3.5
dbt3_s001 partsupp PRIMARY 2 1
dbt3_s001 partsupp i_ps_partkey 1 3.5
dbt3_s001 partsupp i_ps_partkey 2 1
dbt3_s001 partsupp i_ps_suppkey 1 70
dbt3_s001 partsupp i_ps_suppkey 2 1
dbt3_s001 region PRIMARY 1 1
dbt3_s001 supplier PRIMARY 1 1
dbt3_s001 supplier i_s_nationkey 1 1.1111111111111112
dbt3_s001 supplier i_s_nationkey 2 1
dbt3_s001 customer PRIMARY 1 1.0000
dbt3_s001 customer i_c_nationkey 1 6.0000
dbt3_s001 customer i_c_nationkey 2 1.0000
dbt3_s001 lineitem PRIMARY 1 4.0033
dbt3_s001 lineitem PRIMARY 2 1.0000
dbt3_s001 lineitem i_l_shipdate 1 2.6500
dbt3_s001 lineitem i_l_shipdate 2 1.0149
dbt3_s001 lineitem i_l_shipdate 3 1.0000
dbt3_s001 lineitem i_l_suppkey_partkey 1 30.0250
dbt3_s001 lineitem i_l_suppkey_partkey 2 8.5786
dbt3_s001 lineitem i_l_suppkey_partkey 3 1.0030
dbt3_s001 lineitem i_l_suppkey_partkey 4 1.0000
dbt3_s001 lineitem i_l_partkey 1 30.0250
dbt3_s001 lineitem i_l_partkey 2 1.0089
dbt3_s001 lineitem i_l_partkey 3 1.0000
dbt3_s001 lineitem i_l_suppkey 1 600.5000
dbt3_s001 lineitem i_l_suppkey 2 1.2073
dbt3_s001 lineitem i_l_suppkey 3 1.0000
dbt3_s001 lineitem i_l_receiptdate 1 2.6477
dbt3_s001 lineitem i_l_receiptdate 2 1.0152
dbt3_s001 lineitem i_l_receiptdate 3 1.0000
dbt3_s001 lineitem i_l_orderkey 1 4.0033
dbt3_s001 lineitem i_l_orderkey 2 1.0000
dbt3_s001 lineitem i_l_orderkey_quantity 1 4.0033
dbt3_s001 lineitem i_l_orderkey_quantity 2 1.0404
dbt3_s001 lineitem i_l_orderkey_quantity 3 1.0000
dbt3_s001 lineitem i_l_commitdate 1 2.7160
dbt3_s001 lineitem i_l_commitdate 2 1.0364
dbt3_s001 lineitem i_l_commitdate 3 1.0000
dbt3_s001 nation PRIMARY 1 1.0000
dbt3_s001 nation i_n_regionkey 1 5.0000
dbt3_s001 nation i_n_regionkey 2 1.0000
dbt3_s001 orders PRIMARY 1 1.0000
dbt3_s001 orders i_o_orderdate 1 1.3321
dbt3_s001 orders i_o_orderdate 2 1.0000
dbt3_s001 orders i_o_custkey 1 15.0000
dbt3_s001 orders i_o_custkey 2 1.0000
dbt3_s001 part PRIMARY 1 1.0000
dbt3_s001 part i_p_retailprice 1 1.0000
dbt3_s001 part i_p_retailprice 2 1.0000
dbt3_s001 partsupp PRIMARY 1 3.5000
dbt3_s001 partsupp PRIMARY 2 1.0000
dbt3_s001 partsupp i_ps_partkey 1 3.5000
dbt3_s001 partsupp i_ps_partkey 2 1.0000
dbt3_s001 partsupp i_ps_suppkey 1 70.0000
dbt3_s001 partsupp i_ps_suppkey 2 1.0000
dbt3_s001 region PRIMARY 1 1.0000
dbt3_s001 supplier PRIMARY 1 1.0000
dbt3_s001 supplier i_s_nationkey 1 1.1111
dbt3_s001 supplier i_s_nationkey 2 1.0000
select * from mysql.table_stat where table_name='orders';
db_name table_name cardinality
dbt3_s001 orders 1500
select * from mysql.index_stat where table_name='orders';
db_name table_name index_name prefix_arity avg_frequency
dbt3_s001 orders PRIMARY 1 1
dbt3_s001 orders i_o_orderdate 1 1.3321492007104796
dbt3_s001 orders i_o_orderdate 2 1
dbt3_s001 orders i_o_custkey 1 15
dbt3_s001 orders i_o_custkey 2 1
dbt3_s001 orders PRIMARY 1 1.0000
dbt3_s001 orders i_o_orderdate 1 1.3321
dbt3_s001 orders i_o_orderdate 2 1.0000
dbt3_s001 orders i_o_custkey 1 15.0000
dbt3_s001 orders i_o_custkey 2 1.0000
select (select cardinality from mysql.table_stat where table_name='orders') /
(select avg_frequency from mysql.index_stat
where index_name='i_o_orderdate' and prefix_arity=1) as n_distinct;
n_distinct
1126
1126.0416
select count(distinct o_orderdate) from orders;
count(distinct o_orderdate)
1126
@ -165,20 +165,20 @@ select (select cardinality from mysql.table_stat where table_name='orders') /
(select avg_frequency from mysql.index_stat
where index_name='i_o_custkey' and prefix_arity=1) as n_distinct;
n_distinct
100
100.0000
select count(distinct o_custkey) from orders;
count(distinct o_custkey)
100
show index from orders;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment
orders 0 PRIMARY 1 o_orderkey A 1500 NULL NULL BTREE
orders 1 i_o_orderdate 1 o_orderDATE A 1127 NULL NULL YES BTREE
orders 1 i_o_orderdate 1 o_orderDATE A 1126 NULL NULL YES BTREE
orders 1 i_o_custkey 1 o_custkey A 100 NULL NULL YES BTREE
select index_name, column_name, cardinality from information_schema.statistics
where table_name='orders';
index_name column_name cardinality
PRIMARY o_orderkey 1500
i_o_orderdate o_orderDATE 1127
i_o_orderdate o_orderDATE 1126
i_o_custkey o_custkey 100
set @save_optimizer_switch=@@optimizer_switch;
set optimizer_switch='index_condition_pushdown=off';

80
mysql-test/r/statistics.result
View File

@ -1,18 +1,5 @@
drop table if exists t1,t2;
set @save_use_stat_tables=@@use_stat_tables;
CREATE VIEW table_stat AS
SELECT * FROM mysql.table_stat;
CREATE VIEW column_stat AS
SELECT db_name, table_name, column_name,
min_value, max_value,
CAST(nulls_ratio AS decimal(12,4)) AS 'nulls_ratio',
CAST(avg_length AS decimal(12,4)) AS 'avg_length',
CAST(avg_frequency AS decimal(12,4)) AS 'avg_frequency'
FROM mysql.column_stat;
CREATE VIEW index_stat AS
SELECT db_name, table_name, index_name, prefix_arity,
CAST(avg_frequency AS decimal(12,4)) AS 'avg_frequency'
FROM mysql.index_stat;
DELETE FROM mysql.table_stat;
DELETE FROM mysql.column_stat;
DELETE FROM mysql.index_stat;
@ -73,10 +60,10 @@ INSERT INTO t1 VALUES
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status OK
SELECT * FROM table_stat;
SELECT * FROM mysql.table_stat;
db_name table_name cardinality
test t1 40
SELECT * FROM column_stat;
SELECT * FROM mysql.column_stat;
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
@ -84,7 +71,7 @@ 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
SELECT * FROM index_stat;
SELECT * FROM mysql.index_stat;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
test t1 idx1 1 6.4000
@ -98,7 +85,7 @@ test t1 idx4 3 1.1304
SELECT COUNT(*) FROM t1;
COUNT(*)
40
SELECT * FROM column_stat
SELECT * FROM mysql.column_stat
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
@ -110,7 +97,7 @@ SELECT MIN(t1.a), MAX(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 column_stat
SELECT * FROM mysql.column_stat
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
@ -122,7 +109,7 @@ SELECT MIN(t1.b), MAX(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 column_stat
SELECT * FROM mysql.column_stat
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
@ -134,7 +121,7 @@ SELECT MIN(t1.c), MAX(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 column_stat
SELECT * FROM mysql.column_stat
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
@ -146,7 +133,7 @@ SELECT MIN(t1.d), MAX(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 column_stat
SELECT * FROM mysql.column_stat
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
@ -158,7 +145,7 @@ SELECT MIN(t1.e), MAX(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 index_stat
SELECT * FROM mysql.index_stat
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
@ -173,7 +160,7 @@ 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 index_stat
SELECT * FROM mysql.index_stat
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
@ -188,7 +175,7 @@ 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 index_stat
SELECT * FROM mysql.index_stat
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
@ -198,7 +185,7 @@ SELECT
AS 'ARITY 1';
ARITY 1
8.5000
SELECT * FROM index_stat
SELECT * FROM mysql.index_stat
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
@ -225,25 +212,25 @@ DELETE FROM mysql.index_stat;
ANALYZE TABLE t1 PERSISTENT FOR COLUMNS() INDEXES();
Table Op Msg_type Msg_text
test.t1 analyze status Table is already up to date
SELECT * FROM table_stat;
SELECT * FROM mysql.table_stat;
db_name table_name cardinality
test t1 40
SELECT * FROM column_stat;
SELECT * FROM mysql.column_stat;
db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency
SELECT * FROM index_stat;
SELECT * FROM mysql.index_stat;
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 Table is already up to date
SELECT * FROM table_stat;
SELECT * FROM mysql.table_stat;
db_name table_name cardinality
test t1 40
SELECT * FROM column_stat;
SELECT * FROM mysql.column_stat;
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
test t1 c aaaa dddddddd 0.1250 6.6571 7.0000
test t1 e 0.01 0.112 0.2250 8.0000 6.2000
SELECT * FROM index_stat;
SELECT * FROM mysql.index_stat;
db_name table_name index_name prefix_arity avg_frequency
test t1 idx2 1 7.0000
test t1 idx2 2 2.3846
@ -256,10 +243,10 @@ DELETE FROM mysql.index_stat;
ANALYZE TABLE t1 PERSISTENT FOR COLUMNS ALL INDEXES ALL;
Table Op Msg_type Msg_text
test.t1 analyze status Table is already up to date
SELECT * FROM table_stat;
SELECT * FROM mysql.table_stat;
db_name table_name cardinality
test t1 40
SELECT * FROM column_stat;
SELECT * FROM mysql.column_stat;
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
@ -267,7 +254,7 @@ 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
SELECT * FROM index_stat;
SELECT * FROM mysql.index_stat;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
test t1 idx1 1 6.4000
@ -284,11 +271,11 @@ INSERT INTO t2 SELECT * FROM t1;
ANALYZE TABLE t2;
Table Op Msg_type Msg_text
test.t2 analyze status OK
SELECT * FROM table_stat;
SELECT * FROM mysql.table_stat;
db_name table_name cardinality
test t1 40
test t2 40
SELECT * FROM column_stat ORDER BY column_name;
SELECT * FROM mysql.column_stat 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
@ -302,7 +289,7 @@ 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
SELECT * FROM index_stat ORDER BY index_name, prefix_arity, table_name;
SELECT * FROM mysql.index_stat 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
@ -335,7 +322,7 @@ ADD INDEX idx4 (e, b(4), d);
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status OK
SELECT * FROM column_stat;
SELECT * FROM mysql.column_stat;
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 0.2000 17.1250 NULL
@ -343,7 +330,7 @@ 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
SELECT * FROM index_stat;
SELECT * FROM mysql.index_stat;
db_name table_name index_name prefix_arity avg_frequency
test t1 PRIMARY 1 1.0000
test t1 idx2 1 7.0000
@ -390,14 +377,14 @@ INDEX (Percentage)
set use_stat_tables='preferably';
ANALYZE TABLE Country, City, CountryLanguage;
SELECT UPPER(db_name), UPPER(table_name), cardinality
FROM test.table_stat;
FROM mysql.table_stat;
UPPER(db_name) UPPER(table_name) cardinality
WORLD COUNTRY 239
WORLD CITY 4079
WORLD COUNTRYLANGUAGE 984
SELECT UPPER(db_name), UPPER(table_name),
column_name, min_value, max_value, nulls_ratio, avg_length, avg_frequency
FROM test.column_stat;
FROM mysql.column_stat;
UPPER(db_name) UPPER(table_name) column_name min_value max_value nulls_ratio avg_length avg_frequency
WORLD COUNTRY Code ABW ZWE 0.0000 3.0000 1.0000
WORLD COUNTRY Name Afghanistan Zimbabwe 0.0000 10.1088 1.0000
@ -413,7 +400,7 @@ 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 test.index_stat;
FROM mysql.index_stat;
UPPER(db_name) UPPER(table_name) index_name prefix_arity avg_frequency
WORLD COUNTRY PRIMARY 1 1.0000
WORLD COUNTRY Name 1 1.0000
@ -458,7 +445,7 @@ ALTER TABLE CountryLanguage ENGINE=InnoDB;
set use_stat_tables='preferably';
ANALYZE TABLE Country, City, CountryLanguage;
SELECT UPPER(db_name), UPPER(table_name), cardinality
FROM test.table_stat;
FROM mysql.table_stat;
UPPER(db_name) UPPER(table_name) cardinality
WORLD COUNTRY 239
WORLD CITY 4079
@ -468,7 +455,7 @@ WORLD_INNODB CITY 4079
WORLD_INNODB COUNTRYLANGUAGE 984
SELECT UPPER(db_name), UPPER(table_name),
column_name, min_value, max_value, nulls_ratio, avg_length, avg_frequency
FROM test.column_stat;
FROM mysql.column_stat;
UPPER(db_name) UPPER(table_name) column_name min_value max_value nulls_ratio avg_length avg_frequency
WORLD COUNTRY Code ABW ZWE 0.0000 3.0000 1.0000
WORLD COUNTRY Name Afghanistan Zimbabwe 0.0000 10.1088 1.0000
@ -496,7 +483,7 @@ 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 test.index_stat;
FROM mysql.index_stat;
UPPER(db_name) UPPER(table_name) index_name prefix_arity avg_frequency
WORLD COUNTRY PRIMARY 1 1.0000
WORLD COUNTRY Name 1 1.0000
@ -520,7 +507,4 @@ DROP DATABASE world_innodb;
DELETE FROM mysql.table_stat;
DELETE FROM mysql.column_stat;
DELETE FROM mysql.index_stat;
DROP VIEW test.table_stat;
DROP VIEW test.column_stat;
DROP VIEW test.index_stat;
set use_stat_tables=@save_use_stat_tables;

8
mysql-test/r/system_mysql_db.result
View File

@ -283,9 +283,9 @@ column_stat CREATE TABLE `column_stat` (
`column_name` varchar(64) COLLATE utf8_bin NOT NULL,
`min_value` varchar(255) COLLATE utf8_bin DEFAULT NULL,
`max_value` varchar(255) COLLATE utf8_bin DEFAULT NULL,
`nulls_ratio` double DEFAULT NULL,
`avg_length` double DEFAULT NULL,
`avg_frequency` double DEFAULT NULL,
`nulls_ratio` decimal(12,4) DEFAULT NULL,
`avg_length` decimal(12,4) DEFAULT NULL,
`avg_frequency` decimal(12,4) DEFAULT NULL,
PRIMARY KEY (`db_name`,`table_name`,`column_name`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='Statistics on Columns'
show create table index_stat;
@ -295,7 +295,7 @@ index_stat CREATE TABLE `index_stat` (
`table_name` varchar(64) COLLATE utf8_bin NOT NULL,
`index_name` varchar(64) COLLATE utf8_bin NOT NULL,
`prefix_arity` int(11) unsigned NOT NULL,
`avg_frequency` double DEFAULT NULL,
`avg_frequency` decimal(12,4) DEFAULT NULL,
PRIMARY KEY (`db_name`,`table_name`,`index_name`,`prefix_arity`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='Statistics on Indexes'
show tables;

18
mysql-test/suite/funcs_1/r/is_columns_mysql.result
View File

@ -9,13 +9,13 @@ def mysql columns_priv Host 1 NO char 60 180 NULL NULL NULL utf8 utf8_bin char(
def mysql columns_priv Table_name 4 NO char 64 192 NULL NULL NULL utf8 utf8_bin char(64) PRI select,insert,update,references
def mysql columns_priv Timestamp 6 CURRENT_TIMESTAMP NO timestamp NULL NULL NULL NULL 0 NULL NULL timestamp on update CURRENT_TIMESTAMP select,insert,update,references
def mysql columns_priv User 3 NO char 16 48 NULL NULL NULL utf8 utf8_bin char(16) PRI select,insert,update,references
def mysql column_stat avg_frequency 8 NULL YES double NULL NULL 22 NULL NULL NULL NULL double select,insert,update,references
def mysql column_stat avg_length 7 NULL YES double NULL NULL 22 NULL NULL NULL NULL double select,insert,update,references
def mysql column_stat avg_frequency 8 NULL YES decimal NULL NULL 12 4 NULL NULL NULL decimal(12,4) select,insert,update,references
def mysql column_stat avg_length 7 NULL YES decimal NULL NULL 12 4 NULL NULL NULL decimal(12,4) select,insert,update,references
def mysql column_stat column_name 3 NULL NO varchar 64 192 NULL NULL NULL utf8 utf8_bin varchar(64) PRI select,insert,update,references
def mysql column_stat db_name 1 NULL NO varchar 64 192 NULL NULL NULL utf8 utf8_bin varchar(64) PRI select,insert,update,references
def mysql column_stat max_value 5 NULL YES varchar 255 765 NULL NULL NULL utf8 utf8_bin varchar(255) select,insert,update,references
def mysql column_stat min_value 4 NULL YES varchar 255 765 NULL NULL NULL utf8 utf8_bin varchar(255) select,insert,update,references
def mysql column_stat nulls_ratio 6 NULL YES double NULL NULL 22 NULL NULL NULL NULL double select,insert,update,references
def mysql column_stat nulls_ratio 6 NULL YES decimal NULL NULL 12 4 NULL NULL NULL decimal(12,4) select,insert,update,references
def mysql column_stat table_name 2 NULL NO varchar 64 192 NULL NULL NULL utf8 utf8_bin varchar(64) PRI select,insert,update,references
def mysql db Alter_priv 13 N NO enum 1 3 NULL NULL NULL utf8 utf8_general_ci enum('N','Y') select,insert,update,references
def mysql db Alter_routine_priv 19 N NO enum 1 3 NULL NULL NULL utf8 utf8_general_ci enum('N','Y') select,insert,update,references
@ -105,7 +105,7 @@ def mysql host Select_priv 3 N NO enum 1 3 NULL NULL NULL utf8 utf8_general_ci e
def mysql host Show_view_priv 16 N NO enum 1 3 NULL NULL NULL utf8 utf8_general_ci enum('N','Y') select,insert,update,references
def mysql host Trigger_priv 20 N NO enum 1 3 NULL NULL NULL utf8 utf8_general_ci enum('N','Y') select,insert,update,references
def mysql host Update_priv 5 N NO enum 1 3 NULL NULL NULL utf8 utf8_general_ci enum('N','Y') select,insert,update,references
def mysql index_stat avg_frequency 5 NULL YES double NULL NULL 22 NULL NULL NULL NULL double select,insert,update,references
def mysql index_stat avg_frequency 5 NULL YES decimal NULL NULL 12 4 NULL NULL NULL decimal(12,4) select,insert,update,references
def mysql index_stat db_name 1 NULL NO varchar 64 192 NULL NULL NULL utf8 utf8_bin varchar(64) PRI select,insert,update,references
def mysql index_stat index_name 3 NULL NO varchar 64 192 NULL NULL NULL utf8 utf8_bin varchar(64) PRI select,insert,update,references
def mysql index_stat prefix_arity 4 NULL NO int NULL NULL 10 0 NULL NULL NULL int(11) unsigned PRI select,insert,update,references
@ -291,7 +291,7 @@ ORDER BY CHARACTER_SET_NAME, COLLATION_NAME, COL_CML;
COL_CML DATA_TYPE CHARACTER_SET_NAME COLLATION_NAME
NULL bigint NULL NULL
NULL datetime NULL NULL
NULL double NULL NULL
NULL decimal NULL NULL
NULL int NULL NULL
NULL smallint NULL NULL
NULL time NULL NULL
@ -325,9 +325,9 @@ NULL mysql columns_priv Timestamp timestamp NULL NULL NULL NULL timestamp
3.0000 mysql column_stat column_name varchar 64 192 utf8 utf8_bin varchar(64)
3.0000 mysql column_stat min_value varchar 255 765 utf8 utf8_bin varchar(255)
3.0000 mysql column_stat max_value varchar 255 765 utf8 utf8_bin varchar(255)
NULL mysql column_stat nulls_ratio double NULL NULL NULL NULL double
NULL mysql column_stat avg_length double NULL NULL NULL NULL double
NULL mysql column_stat avg_frequency double NULL NULL NULL NULL double
NULL mysql column_stat nulls_ratio decimal NULL NULL NULL NULL decimal(12,4)
NULL mysql column_stat avg_length decimal NULL NULL NULL NULL decimal(12,4)
NULL mysql column_stat avg_frequency decimal NULL NULL NULL NULL decimal(12,4)
3.0000 mysql db Host char 60 180 utf8 utf8_bin char(60)
3.0000 mysql db Db char 64 192 utf8 utf8_bin char(64)
3.0000 mysql db User char 16 48 utf8 utf8_bin char(16)
@ -420,7 +420,7 @@ NULL mysql help_topic help_category_id smallint NULL NULL NULL NULL smallint(5)
3.0000 mysql index_stat table_name varchar 64 192 utf8 utf8_bin varchar(64)
3.0000 mysql index_stat index_name varchar 64 192 utf8 utf8_bin varchar(64)
NULL mysql index_stat prefix_arity int NULL NULL NULL NULL int(11) unsigned
NULL mysql index_stat avg_frequency double NULL NULL NULL NULL double
NULL mysql index_stat avg_frequency decimal NULL NULL NULL NULL decimal(12,4)
NULL mysql ndb_binlog_index Position bigint NULL NULL NULL NULL bigint(20) unsigned
1.0000 mysql ndb_binlog_index File varchar 255 255 latin1 latin1_swedish_ci varchar(255)
NULL mysql ndb_binlog_index epoch bigint NULL NULL NULL NULL bigint(20) unsigned

84
mysql-test/t/statistics.test
View File

@ -6,22 +6,6 @@ drop table if exists t1,t2;
set @save_use_stat_tables=@@use_stat_tables;
CREATE VIEW table_stat AS
SELECT * FROM mysql.table_stat;
CREATE VIEW column_stat AS
SELECT db_name, table_name, column_name,
min_value, max_value,
CAST(nulls_ratio AS decimal(12,4)) AS 'nulls_ratio',
CAST(avg_length AS decimal(12,4)) AS 'avg_length',
CAST(avg_frequency AS decimal(12,4)) AS 'avg_frequency'
FROM mysql.column_stat;
CREATE VIEW index_stat AS
SELECT db_name, table_name, index_name, prefix_arity,
CAST(avg_frequency AS decimal(12,4)) AS 'avg_frequency'
FROM mysql.index_stat;
DELETE FROM mysql.table_stat;
DELETE FROM mysql.column_stat;
DELETE FROM mysql.index_stat;
@ -85,13 +69,13 @@ INSERT INTO t1 VALUES
ANALYZE TABLE t1;
SELECT * FROM table_stat;
SELECT * FROM column_stat;
SELECT * FROM index_stat;
SELECT * FROM mysql.table_stat;
SELECT * FROM mysql.column_stat;
SELECT * FROM mysql.index_stat;
SELECT COUNT(*) FROM t1;
SELECT * FROM column_stat
SELECT * FROM mysql.column_stat
WHERE db_name='test' AND table_name='t1' AND column_name='a';
SELECT MIN(t1.a), MAX(t1.a),
(SELECT COUNT(*) FROM t1 WHERE t1.b IS NULL) /
@ -100,7 +84,7 @@ SELECT MIN(t1.a), MAX(t1.a),
(SELECT COUNT(DISTINCT t1.a) FROM t1) AS "AVG_FREQUENCY(t1.a)"
FROM t1;
SELECT * FROM column_stat
SELECT * FROM mysql.column_stat
WHERE db_name='test' AND table_name='t1' AND column_name='b';
SELECT MIN(t1.b), MAX(t1.b),
(SELECT COUNT(*) FROM t1 WHERE t1.b IS NULL) /
@ -109,7 +93,7 @@ SELECT MIN(t1.b), MAX(t1.b),
(SELECT COUNT(DISTINCT t1.b) FROM t1) AS "AVG_FREQUENCY(t1.b)"
FROM t1;
SELECT * FROM column_stat
SELECT * FROM mysql.column_stat
WHERE db_name='test' AND table_name='t1' AND column_name='c';
SELECT MIN(t1.c), MAX(t1.c),
(SELECT COUNT(*) FROM t1 WHERE t1.c IS NULL) /
@ -118,7 +102,7 @@ SELECT MIN(t1.c), MAX(t1.c),
(SELECT COUNT(DISTINCT t1.c) FROM t1) AS "AVG_FREQUENCY(t1.c)"
FROM t1;
SELECT * FROM column_stat
SELECT * FROM mysql.column_stat
WHERE db_name='test' AND table_name='t1' AND column_name='d';
SELECT MIN(t1.d), MAX(t1.d),
(SELECT COUNT(*) FROM t1 WHERE t1.d IS NULL) /
@ -127,7 +111,7 @@ SELECT MIN(t1.d), MAX(t1.d),
(SELECT COUNT(DISTINCT t1.d) FROM t1) AS "AVG_FREQUENCY(t1.d)"
FROM t1;
SELECT * FROM column_stat
SELECT * FROM mysql.column_stat
WHERE db_name='test' AND table_name='t1' AND column_name='e';
SELECT MIN(t1.e), MAX(t1.e),
(SELECT COUNT(*) FROM t1 WHERE t1.e IS NULL) /
@ -136,7 +120,7 @@ SELECT MIN(t1.e), MAX(t1.e),
(SELECT COUNT(DISTINCT t1.e) FROM t1) AS "AVG_FREQUENCY(t1.e)"
FROM t1;
SELECT * FROM index_stat
SELECT * FROM mysql.index_stat
WHERE db_name='test' AND table_name='t1' AND index_name='idx1';
SELECT
(SELECT COUNT(*) FROM t1 WHERE t1.b IS NOT NULL) /
@ -147,7 +131,7 @@ SELECT
WHERE t1.b IS NOT NULL AND t1.e IS NOT NULL)
AS 'ARITY 2';
SELECT * FROM index_stat
SELECT * FROM mysql.index_stat
WHERE db_name='test' AND table_name='t1' AND index_name='idx2';
SELECT
(SELECT COUNT(*) FROM t1 WHERE t1.c IS NOT NULL) /
@ -158,14 +142,14 @@ SELECT
WHERE t1.c IS NOT NULL AND t1.d IS NOT NULL)
AS 'ARITY 2';
SELECT * FROM index_stat
SELECT * FROM mysql.index_stat
WHERE db_name='test' AND table_name='t1' AND index_name='idx3';
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';
SELECT * FROM index_stat
SELECT * FROM mysql.index_stat
WHERE db_name='test' AND table_name='t1' AND index_name='idx4';
SELECT
(SELECT COUNT(*) FROM t1 WHERE t1.e IS NOT NULL) /
@ -186,14 +170,14 @@ DELETE FROM mysql.column_stat;
DELETE FROM mysql.index_stat;
ANALYZE TABLE t1 PERSISTENT FOR COLUMNS() INDEXES();
SELECT * FROM table_stat;
SELECT * FROM column_stat;
SELECT * FROM index_stat;
SELECT * FROM mysql.table_stat;
SELECT * FROM mysql.column_stat;
SELECT * FROM mysql.index_stat;
ANALYZE TABLE t1 PERSISTENT FOR COLUMNS(c,e,b) INDEXES(idx2,idx4);
SELECT * FROM table_stat;
SELECT * FROM column_stat;
SELECT * FROM index_stat;
SELECT * FROM mysql.table_stat;
SELECT * FROM mysql.column_stat;
SELECT * FROM mysql.index_stat;
DELETE FROM mysql.table_stat;
DELETE FROM mysql.column_stat;
@ -201,9 +185,9 @@ DELETE FROM mysql.index_stat;
ANALYZE TABLE t1 PERSISTENT FOR COLUMNS ALL INDEXES ALL;
SELECT * FROM table_stat;
SELECT * FROM column_stat;
SELECT * FROM index_stat;
SELECT * FROM mysql.table_stat;
SELECT * FROM mysql.column_stat;
SELECT * FROM mysql.index_stat;
CREATE TABLE t2 LIKE t1;
@ -212,9 +196,9 @@ INSERT INTO t2 SELECT * FROM t1;
ANALYZE TABLE t2;
SELECT * FROM table_stat;
SELECT * FROM column_stat ORDER BY column_name;
SELECT * FROM index_stat ORDER BY index_name, prefix_arity, table_name;
SELECT * FROM mysql.table_stat;
SELECT * FROM mysql.column_stat ORDER BY column_name;
SELECT * FROM mysql.index_stat ORDER BY index_name, prefix_arity, table_name;
DELETE FROM mysql.table_stat;
@ -231,8 +215,8 @@ ALTER TABLE t1
ANALYZE TABLE t1;
SELECT * FROM column_stat;
SELECT * FROM index_stat;
SELECT * FROM mysql.column_stat;
SELECT * FROM mysql.index_stat;
DROP TABLE t1,t2;
@ -265,13 +249,13 @@ ANALYZE TABLE Country, City, CountryLanguage;
--enable_result_log
SELECT UPPER(db_name), UPPER(table_name), cardinality
FROM test.table_stat;
FROM mysql.table_stat;
SELECT UPPER(db_name), UPPER(table_name),
column_name, min_value, max_value, nulls_ratio, avg_length, avg_frequency
FROM test.column_stat;
FROM mysql.column_stat;
SELECT UPPER(db_name), UPPER(table_name),
index_name, prefix_arity, avg_frequency
FROM test.index_stat;
FROM mysql.index_stat;
use test;
@ -302,13 +286,13 @@ ANALYZE TABLE Country, City, CountryLanguage;
--enable_result_log
SELECT UPPER(db_name), UPPER(table_name), cardinality
FROM test.table_stat;
FROM mysql.table_stat;
SELECT UPPER(db_name), UPPER(table_name),
column_name, min_value, max_value, nulls_ratio, avg_length, avg_frequency
FROM test.column_stat;
FROM mysql.column_stat;
SELECT UPPER(db_name), UPPER(table_name),
index_name, prefix_arity, avg_frequency
FROM test.index_stat;
FROM mysql.index_stat;
use test;
@ -319,10 +303,6 @@ DELETE FROM mysql.table_stat;
DELETE FROM mysql.column_stat;
DELETE FROM mysql.index_stat;
DROP VIEW test.table_stat;
DROP VIEW test.column_stat;
DROP VIEW test.index_stat;
set use_stat_tables=@save_use_stat_tables;