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Commit 5b4a2d94 authored by Varun Gupta's avatar Varun Gupta
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MDEV-24740: Selectivity for equi-join predicates not involed in ref access is... 

MDEV-24740: Selectivity for equi-join predicates not involed in ref access is not taken into account for join cardinality estimation

First the function was checking if there is a keyuse only then we were
trying to use the function to get estimates for the equi-join predicated.
This function can calculate the estimates for selectivity for an non-indexed
equi-join condition also.

Second change is done when we try to get the avg frequency of a column,
then we need to make sure that statistics are available in the statistical
tables. This check was missing and so get_column_avg_frequency() was
returning zero for columns.

Updated few tests results.
parent 95a2bca0
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mysql-test/main/derived_cond_pushdown.result
View file @ 5b4a2d94
......@@ -16442,6 +16442,8 @@ test.t4 analyze status OK
CREATE VIEW v1 AS
SELECT c FROM t3
WHERE a IN ( SELECT t2.a FROM t1 JOIN t2 WHERE t1.i = t2.i ) GROUP BY c ;
set @save_optimizer_use_condition_selectivity=@@optimizer_use_condition_selectivity;
set optimizer_use_condition_selectivity=1;
set statement optimizer_switch='split_materialized=off' for SELECT * FROM t4 WHERE c IN ( SELECT c FROM v1 ) and a < 2;
a c
1 foo
......@@ -16543,6 +16545,7 @@ EXPLAIN
}
}
}
set @@optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
DROP VIEW v1;
DROP TABLE t1,t2,t3,t4;
#
......
mysql-test/main/derived_cond_pushdown.test
View file @ 5b4a2d94
......@@ -3138,11 +3138,16 @@ SELECT c FROM t3
let $q1=
SELECT * FROM t4 WHERE c IN ( SELECT c FROM v1 ) and a < 2;
set @save_optimizer_use_condition_selectivity=@@optimizer_use_condition_selectivity;
set optimizer_use_condition_selectivity=1;
eval $no_splitting $q1;
eval $q1;
eval explain extended $q1;
eval explain format=json $q1;
set @@optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
DROP VIEW v1;
DROP TABLE t1,t2,t3,t4;
......
mysql-test/main/opt_trace.result
View file @ 5b4a2d94
......@@ -2943,7 +2943,8 @@ explain extended select * from t1 where a in (select pk from t10) {
"chosen_strategy": "SJ-Materialization"
}
],
"estimated_join_cardinality": 3
"selectivity": 0.333333333,
"estimated_join_cardinality": 1
}
]
},
......
mysql-test/main/rowid_filter_innodb.result
View file @ 5b4a2d94
......@@ -2393,7 +2393,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 1 100.00 Using where
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 10 100.00 Using where
3 MATERIALIZED t2 range PRIMARY,col_date_key,ch2,id2 ch2 4 NULL 2 100.00 Using where; Using index
3 MATERIALIZED bt1 ALL NULL NULL NULL NULL 10 100.00 Using where; Using join buffer (flat, BNL join)
3 MATERIALIZED bt1 ALL NULL NULL NULL NULL 10 11.11 Using where; Using join buffer (flat, BNL join)
Warnings:
Note 1276 Field or reference 'test.t3.id' of SELECT #2 was resolved in SELECT #1
Note 1003 /* select#1 */ select 1 AS `1` from `test`.`t3` where <in_optimizer>(1,<expr_cache><`test`.`t3`.`id`>(exists(/* select#2 */ select 1 from `test`.`t1` where <expr_cache><`test`.`t3`.`id`>(<in_optimizer>(`test`.`t3`.`id`,`test`.`t3`.`id` in ( <materialize> (/* select#3 */ select `test`.`bt1`.`id` from `test`.`t2` join `test`.`t1` `bt1` where `test`.`bt1`.`id` = `test`.`t2`.`pk` and `test`.`t2`.`ch2` <= 'g' ), <primary_index_lookup>(`test`.`t3`.`id` in <temporary table> on distinct_key where `test`.`t3`.`id` = `<subquery3>`.`id`)))) or `test`.`t1`.`id2` = `test`.`t1`.`id` limit 1)))
......@@ -2416,7 +2416,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 1 100.00 Using where
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 10 100.00 Using where
3 MATERIALIZED t2 range PRIMARY,col_date_key,ch2,id2 ch2 4 NULL 2 100.00 Using where; Using index
3 MATERIALIZED bt1 ALL NULL NULL NULL NULL 10 100.00 Using where; Using join buffer (flat, BNL join)
3 MATERIALIZED bt1 ALL NULL NULL NULL NULL 10 1.23 Using where; Using join buffer (flat, BNL join)
Warnings:
Note 1276 Field or reference 'test.t3.id' of SELECT #2 was resolved in SELECT #1
Note 1003 /* select#1 */ select 1 AS `1` from `test`.`t3` where <in_optimizer>(1,<expr_cache><`test`.`t3`.`id`>(exists(/* select#2 */ select 1 from `test`.`t1` where <expr_cache><`test`.`t3`.`id`>(<in_optimizer>(`test`.`t3`.`id`,`test`.`t3`.`id` in ( <materialize> (/* select#3 */ select `test`.`bt1`.`id` from `test`.`t2` join `test`.`t1` `bt1` where `test`.`bt1`.`ch` = `test`.`t2`.`ch2` and `test`.`bt1`.`id` = `test`.`t2`.`pk` and `test`.`t2`.`ch2` <= 'g' ), <primary_index_lookup>(`test`.`t3`.`id` in <temporary table> on distinct_key where `test`.`t3`.`id` = `<subquery3>`.`id`)))) or `test`.`t1`.`id2` = `test`.`t1`.`id` limit 1)))
......
mysql-test/main/selectivity.result
View file @ 5b4a2d94
......@@ -80,7 +80,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 DEPENDENT SUBQUERY region ALL PRIMARY NULL NULL NULL 5 20.00 Using where
2 DEPENDENT SUBQUERY partsupp ref PRIMARY,i_ps_partkey,i_ps_suppkey i_ps_partkey 4 dbt3_s001.part.p_partkey 3 100.00
2 DEPENDENT SUBQUERY supplier eq_ref PRIMARY,i_s_nationkey PRIMARY 4 dbt3_s001.partsupp.ps_suppkey 1 100.00 Using where
2 DEPENDENT SUBQUERY nation eq_ref PRIMARY,i_n_regionkey PRIMARY 4 dbt3_s001.supplier.s_nationkey 1 100.00 Using where
2 DEPENDENT SUBQUERY nation eq_ref PRIMARY,i_n_regionkey PRIMARY 4 dbt3_s001.supplier.s_nationkey 1 20.00 Using where
Warnings:
Note 1276 Field or reference 'dbt3_s001.part.p_partkey' of SELECT #2 was resolved in SELECT #1
Note 1003 /* select#1 */ select `dbt3_s001`.`supplier`.`s_acctbal` AS `s_acctbal`,`dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`nation`.`n_name` AS `n_name`,`dbt3_s001`.`part`.`p_partkey` AS `p_partkey`,`dbt3_s001`.`part`.`p_mfgr` AS `p_mfgr`,`dbt3_s001`.`supplier`.`s_address` AS `s_address`,`dbt3_s001`.`supplier`.`s_phone` AS `s_phone`,`dbt3_s001`.`supplier`.`s_comment` AS `s_comment` from `dbt3_s001`.`part` join `dbt3_s001`.`supplier` join `dbt3_s001`.`partsupp` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`supplier`.`s_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`part`.`p_size` = 9 and `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`region`.`r_regionkey` = `dbt3_s001`.`nation`.`n_regionkey` and `dbt3_s001`.`region`.`r_name` = 'ASIA' and `dbt3_s001`.`part`.`p_type` like '%TIN' and `dbt3_s001`.`partsupp`.`ps_supplycost` = <expr_cache><`dbt3_s001`.`part`.`p_partkey`>((/* select#2 */ select min(`dbt3_s001`.`partsupp`.`ps_supplycost`) from `dbt3_s001`.`partsupp` join `dbt3_s001`.`supplier` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`supplier`.`s_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`nation`.`n_regionkey` = `dbt3_s001`.`region`.`r_regionkey` and `dbt3_s001`.`region`.`r_name` = 'ASIA' and `dbt3_s001`.`part`.`p_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey`)) order by `dbt3_s001`.`supplier`.`s_acctbal` desc,`dbt3_s001`.`nation`.`n_name`,`dbt3_s001`.`supplier`.`s_name`,`dbt3_s001`.`part`.`p_partkey`
......@@ -121,7 +121,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 DEPENDENT SUBQUERY region ALL PRIMARY NULL NULL NULL 5 20.00 Using where
2 DEPENDENT SUBQUERY partsupp ref PRIMARY,i_ps_partkey,i_ps_suppkey i_ps_partkey 4 dbt3_s001.part.p_partkey 3 100.00
2 DEPENDENT SUBQUERY supplier eq_ref PRIMARY,i_s_nationkey PRIMARY 4 dbt3_s001.partsupp.ps_suppkey 1 100.00 Using where
2 DEPENDENT SUBQUERY nation eq_ref PRIMARY,i_n_regionkey PRIMARY 4 dbt3_s001.supplier.s_nationkey 1 100.00 Using where
2 DEPENDENT SUBQUERY nation eq_ref PRIMARY,i_n_regionkey PRIMARY 4 dbt3_s001.supplier.s_nationkey 1 20.00 Using where
Warnings:
Note 1276 Field or reference 'dbt3_s001.part.p_partkey' of SELECT #2 was resolved in SELECT #1
Note 1003 /* select#1 */ select `dbt3_s001`.`supplier`.`s_acctbal` AS `s_acctbal`,`dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`nation`.`n_name` AS `n_name`,`dbt3_s001`.`part`.`p_partkey` AS `p_partkey`,`dbt3_s001`.`part`.`p_mfgr` AS `p_mfgr`,`dbt3_s001`.`supplier`.`s_address` AS `s_address`,`dbt3_s001`.`supplier`.`s_phone` AS `s_phone`,`dbt3_s001`.`supplier`.`s_comment` AS `s_comment` from `dbt3_s001`.`part` join `dbt3_s001`.`supplier` join `dbt3_s001`.`partsupp` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`partsupp`.`ps_suppkey` = `dbt3_s001`.`supplier`.`s_suppkey` and `dbt3_s001`.`part`.`p_size` = 9 and `dbt3_s001`.`supplier`.`s_nationkey` = `dbt3_s001`.`nation`.`n_nationkey` and `dbt3_s001`.`nation`.`n_regionkey` = `dbt3_s001`.`region`.`r_regionkey` and `dbt3_s001`.`region`.`r_name` = 'ASIA' and `dbt3_s001`.`part`.`p_type` like '%TIN' and `dbt3_s001`.`partsupp`.`ps_supplycost` = <expr_cache><`dbt3_s001`.`part`.`p_partkey`>((/* select#2 */ select min(`dbt3_s001`.`partsupp`.`ps_supplycost`) from `dbt3_s001`.`partsupp` join `dbt3_s001`.`supplier` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`supplier`.`s_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`nation`.`n_regionkey` = `dbt3_s001`.`region`.`r_regionkey` and `dbt3_s001`.`region`.`r_name` = 'ASIA' and `dbt3_s001`.`part`.`p_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey`)) order by `dbt3_s001`.`supplier`.`s_acctbal` desc,`dbt3_s001`.`nation`.`n_name`,`dbt3_s001`.`supplier`.`s_name`,`dbt3_s001`.`part`.`p_partkey`
......@@ -1246,7 +1246,7 @@ SELECT * FROM language, country, continent
WHERE country_group = lang_group AND lang_group IS NULL;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE country ALL NULL NULL NULL NULL 2 0.00 Using where
1 SIMPLE language ALL NULL NULL NULL NULL 6 0.00 Using where; Using join buffer (flat, BNL join)
1 SIMPLE language ALL NULL NULL NULL NULL 6 50.00 Using where; Using join buffer (flat, BNL join)
1 SIMPLE continent ALL NULL NULL NULL NULL 6 100.00 Using join buffer (incremental, BNL join)
Warnings:
Note 1003 select `test`.`language`.`lang_group` AS `lang_group`,`test`.`language`.`lang` AS `lang`,`test`.`country`.`code` AS `code`,`test`.`country`.`country_group` AS `country_group`,`test`.`continent`.`cont_group` AS `cont_group`,`test`.`continent`.`cont` AS `cont` from `test`.`language` join `test`.`country` join `test`.`continent` where `test`.`language`.`lang_group` = `test`.`country`.`country_group` and `test`.`country`.`country_group` is null
......@@ -1312,7 +1312,7 @@ where t1.b=t2.c and t2.d=t3.a and t3.b<5 and t1.a < 2000;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t3 ALL NULL NULL NULL NULL 262144 0.00 Using where
1 SIMPLE t2 ref c,d d 5 test.t3.a 7 100.00
1 SIMPLE t1 ALL NULL NULL NULL NULL 262144 2.00 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t1 ALL NULL NULL NULL NULL 262144 0.00 Using where; Using join buffer (flat, BNL join)
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b` from `test`.`t1` join `test`.`t2` join `test`.`t1` `t3` where `test`.`t1`.`b` = `test`.`t2`.`c` and `test`.`t2`.`d` = `test`.`t3`.`a` and `test`.`t3`.`b` < 5 and `test`.`t1`.`a` < 2000
select * from t1, t2, t1 as t3
......
mysql-test/main/selectivity_no_engine.result
View file @ 5b4a2d94
......@@ -273,7 +273,7 @@ Note 1003 select `test`.`ta`.`a` AS `a`,`test`.`tb`.`a` AS `a` from `test`.`t1`
explain extended select * from t1 ta, t2 tb where ta.a < 40 and tb.a < 100 and tb.a=ta.a;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE ta ALL NULL NULL NULL NULL 1000 4.95 Using where
1 SIMPLE tb ALL NULL NULL NULL NULL 1000 4.95 Using where; Using join buffer (flat, BNL join)
1 SIMPLE tb ALL NULL NULL NULL NULL 1000 0.10 Using where; Using join buffer (flat, BNL join)
Warnings:
Note 1003 select `test`.`ta`.`a` AS `a`,`test`.`tb`.`a` AS `a` from `test`.`t1` `ta` join `test`.`t2` `tb` where `test`.`tb`.`a` = `test`.`ta`.`a` and `test`.`ta`.`a` < 40 and `test`.`ta`.`a` < 100
drop table t0,t1,t2;
......
mysql-test/main/stat_tables.result
View file @ 5b4a2d94
......@@ -70,9 +70,9 @@ group by n_name
order by revenue desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE region ALL PRIMARY NULL NULL NULL 5 Using where; Using temporary; Using filesort
1 SIMPLE nation ref PRIMARY,i_n_regionkey i_n_regionkey 5 dbt3_s001.region.r_regionkey 5
1 SIMPLE supplier ref PRIMARY,i_s_nationkey i_s_nationkey 5 dbt3_s001.nation.n_nationkey 1
1 SIMPLE customer ref PRIMARY,i_c_nationkey i_c_nationkey 5 dbt3_s001.nation.n_nationkey 6
1 SIMPLE supplier ALL PRIMARY,i_s_nationkey NULL NULL NULL 10 Using where; Using join buffer (flat, BNL join)
1 SIMPLE nation eq_ref PRIMARY,i_n_regionkey PRIMARY 4 dbt3_s001.supplier.s_nationkey 1 Using where
1 SIMPLE customer ref PRIMARY,i_c_nationkey i_c_nationkey 5 dbt3_s001.supplier.s_nationkey 6
1 SIMPLE orders ref|filter PRIMARY,i_o_orderdate,i_o_custkey i_o_custkey|i_o_orderdate 5|4 dbt3_s001.customer.c_custkey 15 (12%) Using where; Using rowid filter
1 SIMPLE lineitem ref PRIMARY,i_l_suppkey,i_l_orderkey,i_l_orderkey_quantity i_l_orderkey 4 dbt3_s001.orders.o_orderkey 4 Using where
select n_name, sum(l_extendedprice * (1 - l_discount)) as revenue
......@@ -177,9 +177,9 @@ group by n_name
order by revenue desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE region ALL PRIMARY NULL NULL NULL 5 Using where; Using temporary; Using filesort
1 SIMPLE nation ref PRIMARY,i_n_regionkey i_n_regionkey 5 dbt3_s001.region.r_regionkey 5
1 SIMPLE supplier ref PRIMARY,i_s_nationkey i_s_nationkey 5 dbt3_s001.nation.n_nationkey 1
1 SIMPLE customer ref PRIMARY,i_c_nationkey i_c_nationkey 5 dbt3_s001.nation.n_nationkey 6
1 SIMPLE supplier ALL PRIMARY,i_s_nationkey NULL NULL NULL 10 Using where; Using join buffer (flat, BNL join)
1 SIMPLE nation eq_ref PRIMARY,i_n_regionkey PRIMARY 4 dbt3_s001.supplier.s_nationkey 1 Using where
1 SIMPLE customer ref PRIMARY,i_c_nationkey i_c_nationkey 5 dbt3_s001.supplier.s_nationkey 6
1 SIMPLE orders ref|filter PRIMARY,i_o_orderdate,i_o_custkey i_o_custkey|i_o_orderdate 5|4 dbt3_s001.customer.c_custkey 15 (12%) Using where; Using rowid filter
1 SIMPLE lineitem ref PRIMARY,i_l_suppkey,i_l_orderkey,i_l_orderkey_quantity i_l_orderkey 4 dbt3_s001.orders.o_orderkey 4 Using where
select n_name, sum(l_extendedprice * (1 - l_discount)) as revenue
......@@ -214,12 +214,12 @@ order by o_year;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE region ALL PRIMARY NULL NULL NULL 5 Using where; Using temporary; Using filesort
1 SIMPLE part ALL PRIMARY NULL NULL NULL 200 Using where; Using join buffer (flat, BNL join)
1 SIMPLE lineitem ref PRIMARY,i_l_suppkey_partkey,i_l_partkey,i_l_suppkey,i_l_orderkey,i_l_orderkey_quantity i_l_partkey 5 dbt3_s001.part.p_partkey 30 Using where
1 SIMPLE supplier eq_ref PRIMARY,i_s_nationkey PRIMARY 4 dbt3_s001.lineitem.l_suppkey 1 Using where
1 SIMPLE lineitem ref PRIMARY,i_l_suppkey_partkey,i_l_partkey,i_l_suppkey,i_l_orderkey,i_l_orderkey_quantity i_l_partkey 5 dbt3_s001.part.p_partkey 30
1 SIMPLE orders eq_ref|filter PRIMARY,i_o_orderdate,i_o_custkey PRIMARY|i_o_orderdate 4|4 dbt3_s001.lineitem.l_orderkey 1 (27%) Using where; Using rowid filter
1 SIMPLE n2 eq_ref PRIMARY PRIMARY 4 dbt3_s001.supplier.s_nationkey 1
1 SIMPLE customer eq_ref PRIMARY,i_c_nationkey PRIMARY 4 dbt3_s001.orders.o_custkey 1 Using where
1 SIMPLE n1 eq_ref PRIMARY,i_n_regionkey PRIMARY 4 dbt3_s001.customer.c_nationkey 1 Using where
1 SIMPLE supplier ALL PRIMARY,i_s_nationkey NULL NULL NULL 10 Using where; Using join buffer (flat, BNL join)
1 SIMPLE n2 eq_ref PRIMARY PRIMARY 4 dbt3_s001.supplier.s_nationkey 1
select o_year,
sum(case when nation = 'UNITED STATES' then volume else 0 end) /
sum(volume) as mkt_share
......@@ -238,7 +238,7 @@ group by o_year
order by o_year;
o_year mkt_share
1995 0.4495521838895718
1996 0.024585468215352495
1996 0.0245854682153525
EXPLAIN select nation, o_year, sum(amount) as sum_profit
from (select n_name as nation,
extract(year from o_orderdate) as o_year,
......@@ -251,8 +251,8 @@ and p_name like '%green%') as profit
group by nation, o_year
order by nation, o_year desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE supplier ALL PRIMARY,i_s_nationkey NULL NULL NULL 10 Using where; Using temporary; Using filesort
1 SIMPLE nation eq_ref PRIMARY PRIMARY 4 dbt3_s001.supplier.s_nationkey 1
1 SIMPLE nation ALL PRIMARY NULL NULL NULL 25 Using temporary; Using filesort
1 SIMPLE supplier ALL PRIMARY,i_s_nationkey NULL NULL NULL 10 Using where; Using join buffer (flat, BNL join)
1 SIMPLE partsupp ref PRIMARY,i_ps_partkey,i_ps_suppkey i_ps_suppkey 4 dbt3_s001.supplier.s_suppkey 70
1 SIMPLE part eq_ref PRIMARY PRIMARY 4 dbt3_s001.partsupp.ps_partkey 1 Using where
1 SIMPLE lineitem ref PRIMARY,i_l_suppkey_partkey,i_l_partkey,i_l_suppkey,i_l_orderkey,i_l_orderkey_quantity i_l_suppkey_partkey 10 dbt3_s001.partsupp.ps_partkey,dbt3_s001.supplier.s_suppkey 8
......
mysql-test/main/stat_tables_innodb.result
View file @ 5b4a2d94
......@@ -78,9 +78,9 @@ group by n_name
order by revenue desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE region ALL PRIMARY NULL NULL NULL 5 Using where; Using temporary; Using filesort
1 SIMPLE nation ref PRIMARY,i_n_regionkey i_n_regionkey 5 dbt3_s001.region.r_regionkey 5
1 SIMPLE supplier ref PRIMARY,i_s_nationkey i_s_nationkey 5 dbt3_s001.nation.n_nationkey 1 Using index
1 SIMPLE customer ref PRIMARY,i_c_nationkey i_c_nationkey 5 dbt3_s001.nation.n_nationkey 6 Using index
1 SIMPLE supplier range PRIMARY,i_s_nationkey i_s_nationkey 5 NULL 10 Using where; Using index; Using join buffer (flat, BNL join)
1 SIMPLE nation eq_ref PRIMARY,i_n_regionkey PRIMARY 4 dbt3_s001.supplier.s_nationkey 1 Using where
1 SIMPLE customer ref PRIMARY,i_c_nationkey i_c_nationkey 5 dbt3_s001.supplier.s_nationkey 6 Using index
1 SIMPLE orders ref|filter PRIMARY,i_o_orderdate,i_o_custkey i_o_custkey|i_o_orderdate 5|4 dbt3_s001.customer.c_custkey 15 (14%) Using where; Using rowid filter
1 SIMPLE lineitem ref PRIMARY,i_l_suppkey,i_l_orderkey,i_l_orderkey_quantity i_l_suppkey 9 dbt3_s001.supplier.s_suppkey,dbt3_s001.orders.o_orderkey 1
select n_name, sum(l_extendedprice * (1 - l_discount)) as revenue
......@@ -209,9 +209,9 @@ group by n_name
order by revenue desc;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE region ALL PRIMARY NULL NULL NULL 5 Using where; Using temporary; Using filesort
1 SIMPLE nation ref PRIMARY,i_n_regionkey i_n_regionkey 5 dbt3_s001.region.r_regionkey 5
1 SIMPLE supplier ref PRIMARY,i_s_nationkey i_s_nationkey 5 dbt3_s001.nation.n_nationkey 1 Using index
1 SIMPLE customer ref PRIMARY,i_c_nationkey i_c_nationkey 5 dbt3_s001.nation.n_nationkey 6 Using index
1 SIMPLE supplier range PRIMARY,i_s_nationkey i_s_nationkey 5 NULL 10 Using where; Using index; Using join buffer (flat, BNL join)
1 SIMPLE nation eq_ref PRIMARY,i_n_regionkey PRIMARY 4 dbt3_s001.supplier.s_nationkey 1 Using where
1 SIMPLE customer ref PRIMARY,i_c_nationkey i_c_nationkey 5 dbt3_s001.supplier.s_nationkey 6 Using index
1 SIMPLE orders ref|filter PRIMARY,i_o_orderdate,i_o_custkey i_o_custkey|i_o_orderdate 5|4 dbt3_s001.customer.c_custkey 15 (14%) Using where; Using rowid filter
1 SIMPLE lineitem ref PRIMARY,i_l_suppkey,i_l_orderkey,i_l_orderkey_quantity i_l_suppkey 9 dbt3_s001.supplier.s_suppkey,dbt3_s001.orders.o_orderkey 1
select n_name, sum(l_extendedprice * (1 - l_discount)) as revenue
......
mysql-test/main/subselect_mat.result
View file @ 5b4a2d94
......@@ -471,7 +471,7 @@ where (c1, c2) in (select b1, b2 from t2i where b2 > '0')) and
a1 = c1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY t3 ALL NULL NULL NULL NULL 4 100.00 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t3 ALL NULL NULL NULL NULL 4 33.33 Using where; Using join buffer (flat, BNL join)
4 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where
5 MATERIALIZED t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 3 99.22 Using where
......
mysql-test/main/subselect_sj2.result
View file @ 5b4a2d94
......@@ -1126,11 +1126,11 @@ WHERE alias5.b = alias4.b
AND ( alias5.b >= alias3.b OR alias5.c != alias3.c )
);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY alias3 ALL PRIMARY NULL NULL NULL # Using where
1 PRIMARY alias4 ref PRIMARY,c c 4 test.alias3.d # Using index
1 PRIMARY alias5 eq_ref PRIMARY PRIMARY 4 test.alias4.b # Using where; FirstMatch(alias3)
1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join)
1 PRIMARY alias3 ALL PRIMARY NULL NULL NULL #
1 PRIMARY alias5 index PRIMARY c 4 NULL # Using where; Using index
1 PRIMARY alias4 eq_ref PRIMARY,c PRIMARY 4 test.alias5.b # Using where; FirstMatch(alias3)
1 PRIMARY alias1 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join)
1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join)
SELECT COUNT(*) FROM t1 AS alias1, t1 AS alias2, t2 AS alias3
WHERE alias3.d IN (
SELECT alias4.c FROM t2 AS alias4, t2 AS alias5
......@@ -1147,11 +1147,11 @@ WHERE alias5.b = alias4.b
AND ( alias5.b >= alias3.b OR alias3.c != alias5.c )
);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY alias3 ALL PRIMARY NULL NULL NULL # Using where
1 PRIMARY alias4 ref PRIMARY,c c 4 test.alias3.d # Using index
1 PRIMARY alias5 eq_ref PRIMARY PRIMARY 4 test.alias4.b # Using where; FirstMatch(alias3)
1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join)
1 PRIMARY alias3 ALL PRIMARY NULL NULL NULL #
1 PRIMARY alias5 index PRIMARY c 4 NULL # Using where; Using index
1 PRIMARY alias4 eq_ref PRIMARY,c PRIMARY 4 test.alias5.b # Using where; FirstMatch(alias3)
1 PRIMARY alias1 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join)
1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join)
SELECT COUNT(*) FROM t1 AS alias1, t1 AS alias2, t2 AS alias3
WHERE alias3.d IN (
SELECT alias4.c FROM t2 AS alias4, t2 AS alias5
......
mysql-test/main/subselect_sj2_jcl6.result
View file @ 5b4a2d94
......@@ -1139,11 +1139,11 @@ WHERE alias5.b = alias4.b
AND ( alias5.b >= alias3.b OR alias5.c != alias3.c )
);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY alias3 ALL PRIMARY NULL NULL NULL # Using where
1 PRIMARY alias4 ref PRIMARY,c c 4 test.alias3.d # Using index
1 PRIMARY alias5 eq_ref PRIMARY PRIMARY 4 test.alias4.b # Using where; FirstMatch(alias3)
1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join)
1 PRIMARY alias3 ALL PRIMARY NULL NULL NULL #
1 PRIMARY alias5 index PRIMARY c 4 NULL # Using where; Using index; Using join buffer (flat, BNL join)
1 PRIMARY alias4 eq_ref PRIMARY,c PRIMARY 4 test.alias5.b # Using where; FirstMatch(alias3); Using join buffer (incremental, BKA join); Key-ordered scan
1 PRIMARY alias1 ALL NULL NULL NULL NULL # Using join buffer (incremental, BNL join)
1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (incremental, BNL join)
SELECT COUNT(*) FROM t1 AS alias1, t1 AS alias2, t2 AS alias3
WHERE alias3.d IN (
SELECT alias4.c FROM t2 AS alias4, t2 AS alias5
......@@ -1160,11 +1160,11 @@ WHERE alias5.b = alias4.b
AND ( alias5.b >= alias3.b OR alias3.c != alias5.c )
);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY alias3 ALL PRIMARY NULL NULL NULL # Using where
1 PRIMARY alias4 ref PRIMARY,c c 4 test.alias3.d # Using index
1 PRIMARY alias5 eq_ref PRIMARY PRIMARY 4 test.alias4.b # Using where; FirstMatch(alias3)
1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join)
1 PRIMARY alias3 ALL PRIMARY NULL NULL NULL #
1 PRIMARY alias5 index PRIMARY c 4 NULL # Using where; Using index; Using join buffer (flat, BNL join)
1 PRIMARY alias4 eq_ref PRIMARY,c PRIMARY 4 test.alias5.b # Using where; FirstMatch(alias3); Using join buffer (incremental, BKA join); Key-ordered scan
1 PRIMARY alias1 ALL NULL NULL NULL NULL # Using join buffer (incremental, BNL join)
1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (incremental, BNL join)
SELECT COUNT(*) FROM t1 AS alias1, t1 AS alias2, t2 AS alias3
WHERE alias3.d IN (
SELECT alias4.c FROM t2 AS alias4, t2 AS alias5
......
mysql-test/main/subselect_sj2_mat.result
View file @ 5b4a2d94
......@@ -1128,11 +1128,11 @@ WHERE alias5.b = alias4.b
AND ( alias5.b >= alias3.b OR alias5.c != alias3.c )
);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY alias3 ALL PRIMARY NULL NULL NULL # Using where
1 PRIMARY alias4 ref PRIMARY,c c 4 test.alias3.d # Using index
1 PRIMARY alias5 eq_ref PRIMARY PRIMARY 4 test.alias4.b # Using where; FirstMatch(alias3)
1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join)
1 PRIMARY alias3 ALL PRIMARY NULL NULL NULL #
1 PRIMARY alias5 index PRIMARY c 4 NULL # Using where; Using index
1 PRIMARY alias4 eq_ref PRIMARY,c PRIMARY 4 test.alias5.b # Using where; FirstMatch(alias3)
1 PRIMARY alias1 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join)
1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join)
SELECT COUNT(*) FROM t1 AS alias1, t1 AS alias2, t2 AS alias3
WHERE alias3.d IN (
SELECT alias4.c FROM t2 AS alias4, t2 AS alias5
......@@ -1149,11 +1149,11 @@ WHERE alias5.b = alias4.b
AND ( alias5.b >= alias3.b OR alias3.c != alias5.c )
);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY alias3 ALL PRIMARY NULL NULL NULL # Using where
1 PRIMARY alias4 ref PRIMARY,c c 4 test.alias3.d # Using index
1 PRIMARY alias5 eq_ref PRIMARY PRIMARY 4 test.alias4.b # Using where; FirstMatch(alias3)
1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join)
1 PRIMARY alias3 ALL PRIMARY NULL NULL NULL #
1 PRIMARY alias5 index PRIMARY c 4 NULL # Using where; Using index
1 PRIMARY alias4 eq_ref PRIMARY,c PRIMARY 4 test.alias5.b # Using where; FirstMatch(alias3)
1 PRIMARY alias1 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join)
1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join)
SELECT COUNT(*) FROM t1 AS alias1, t1 AS alias2, t2 AS alias3
WHERE alias3.d IN (
SELECT alias4.c FROM t2 AS alias4, t2 AS alias5
......
mysql-test/main/subselect_sj_mat.result
View file @ 5b4a2d94
......@@ -279,7 +279,7 @@ explain extended
select * from t1i where (a1, a2) in (select b1, b2 from t2i order by b1, b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 50.00 Using where; Using index; LooseScan
1 PRIMARY t1i ref it1i1,it1i2,it1i3 it1i3 18 test.t2i.b1,test.t2i.b2 1 100.00 Using index
1 PRIMARY t1i ref it1i1,it1i2,it1i3 it1i3 18 test.t2i.b1,test.t2i.b2 1 11.11 Using index
Warnings:
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) where `test`.`t1i`.`a1` = `test`.`t2i`.`b1` and `test`.`t1i`.`a2` = `test`.`t2i`.`b2`
select * from t1i where (a1, a2) in (select b1, b2 from t2i order by b1, b2);
......@@ -403,7 +403,7 @@ where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 99.22
1 PRIMARY <subquery5> eq_ref distinct_key distinct_key 16 func,func 1 100.00
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 99.22 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 6.25 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
5 MATERIALIZED t3c ALL NULL NULL NULL NULL 4 99.22 Using where
5 MATERIALIZED t2i ref it2i1,it2i2,it2i3 it2i3 18 test.t3c.c1,test.t3c.c2 1 100.00 Using index
4 MATERIALIZED t3b ALL NULL NULL NULL NULL 4 100.00 Using where
......@@ -496,7 +496,7 @@ where (c1, c2) in (select b1, b2 from t2i where b2 > '0')) and
a1 = c1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY t3 ALL NULL NULL NULL NULL 4 99.22 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t3 ALL NULL NULL NULL NULL 4 33.33 Using where; Using join buffer (flat, BNL join)
1 PRIMARY <subquery4> eq_ref distinct_key distinct_key 16 func,func 1 100.00
4 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 99.22 Using where
4 MATERIALIZED t2i ref it2i1,it2i2,it2i3 it2i3 18 test.t3.c1,test.t3.c2 1 100.00 Using index
......@@ -542,15 +542,15 @@ b2 in (select c2 from t3 t3b where c2 LIKE '%03')) and
where (c1, c2) in (select b1, b2 from t2i where b2 > '0' or b2 = a2));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 11.11 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t2i ref it2i1,it2i2,it2i3 it2i3 18 test.t1.a1,test.t1.a2 1 100.00 Using index; Start temporary
1 PRIMARY t3c ALL NULL NULL NULL NULL 4 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t3c ALL NULL NULL NULL NULL 4 11.11 Using where; End temporary; Using join buffer (flat, BNL join)
4 MATERIALIZED t3b ALL NULL NULL NULL NULL 4 100.00 Using where
3 DEPENDENT SUBQUERY t3a ALL NULL NULL NULL NULL 4 100.00 Using where
Warnings:
Note 1276 Field or reference 'test.t1.a1' of SELECT #3 was resolved in SELECT #1
Note 1276 Field or reference 'test.t1.a2' of SELECT #6 was resolved in SELECT #1
Note 1003 /* select#1 */ select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3` `t3c`) where `test`.`t2i`.`b1` = `test`.`t1`.`a1` and `test`.`t3c`.`c1` = `test`.`t1`.`a1` and `test`.`t2`.`b1` = `test`.`t1`.`a1` and `test`.`t2i`.`b2` = `test`.`t1`.`a2` and `test`.`t3c`.`c2` = `test`.`t1`.`a2` and `test`.`t2`.`b2` = `test`.`t1`.`a2` and (<expr_cache><`test`.`t2`.`b2`,`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t2`.`b2`,<exists>(/* select#3 */ select `test`.`t3a`.`c2` from `test`.`t3` `t3a` where `test`.`t3a`.`c1` = `test`.`t1`.`a1` and <cache>(`test`.`t2`.`b2`) = `test`.`t3a`.`c2`))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (/* select#4 */ select `test`.`t3b`.`c2` from `test`.`t3` `t3b` where `test`.`t3b`.`c2` like '%03' ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where `test`.`t2`.`b2` = `<subquery4>`.`c2`)))))
Note 1003 /* select#1 */ select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3` `t3c`) where `test`.`t2`.`b1` = `test`.`t1`.`a1` and `test`.`t2i`.`b1` = `test`.`t1`.`a1` and `test`.`t3c`.`c1` = `test`.`t1`.`a1` and `test`.`t2`.`b2` = `test`.`t1`.`a2` and `test`.`t2i`.`b2` = `test`.`t1`.`a2` and `test`.`t3c`.`c2` = `test`.`t1`.`a2` and (<expr_cache><`test`.`t2`.`b2`,`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t2`.`b2`,<exists>(/* select#3 */ select `test`.`t3a`.`c2` from `test`.`t3` `t3a` where `test`.`t3a`.`c1` = `test`.`t1`.`a1` and <cache>(`test`.`t2`.`b2`) = `test`.`t3a`.`c2`))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (/* select#4 */ select `test`.`t3b`.`c2` from `test`.`t3` `t3b` where `test`.`t3b`.`c2` like '%03' ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where `test`.`t2`.`b2` = `<subquery4>`.`c2`)))))
explain extended
select * from t1 where (a1, a2) in (select '1 - 01', '2 - 01');
id select_type table type possible_keys key key_len ref rows filtered Extra
......@@ -739,7 +739,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where; Start temporary; Using join buffer (flat, BNL join)
1 PRIMARY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t3 ALL NULL NULL NULL NULL 4 99.22 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 25.00 Using where; End temporary; Using join buffer (flat, BNL join)
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t3` join `test`.`t2_16` join `test`.`t2` join `test`.`t1_16`) where `test`.`t2`.`b1` = `test`.`t3`.`c1` and `test`.`t2_16`.`b1` = `test`.`t1_16`.`a1` and `test`.`t2_16`.`b2` = `test`.`t1_16`.`a2` and `test`.`t2`.`b2` = substr(`test`.`t1_16`.`a2`,1,6) and `test`.`t3`.`c2` > '0' and concat(`test`.`t1`.`a1`,'x') = left(`test`.`t1_16`.`a1`,8)
drop table t1_16, t2_16, t3_16;
......
mysql-test/suite/gcol/r/gcol_select_innodb.result
View file @ 5b4a2d94
......@@ -700,8 +700,8 @@ WHERE t4.c1 < 'o'
AND t1.i1 <= t3.i2_key;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 2
1 PRIMARY t3 eq_ref PRIMARY PRIMARY 4 test.t4.i1 1 Using where
1 PRIMARY t3 ALL PRIMARY NULL NULL NULL 9 Using where; Using join buffer (flat, BNL join)
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 Using join buffer (flat, BNL join)
2 MATERIALIZED t4 ALL NULL NULL NULL NULL 3 Using where
SELECT /*+ NO_SEMIJOIN(@subq1) */ t1.c1, t2.i1
......@@ -755,8 +755,8 @@ WHERE t4.c1 < 'o'
AND t1.i1 <= t3.i2_key;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 2
1 PRIMARY t3 eq_ref PRIMARY PRIMARY 4 test.t4.i1 1 Using where
1 PRIMARY t3 ALL PRIMARY NULL NULL NULL 9 Using where; Using join buffer (flat, BNL join)
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 Using join buffer (flat, BNL join)
2 MATERIALIZED t4 ALL NULL NULL NULL NULL 3 Using where
SELECT /*+ NO_SEMIJOIN(@subq1) */ t1.c1, t2.i1
......@@ -811,8 +811,8 @@ WHERE t4.c1 < 'o'
AND t1.i1 <= t3.i2_key;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 2
1 PRIMARY t3 eq_ref PRIMARY PRIMARY 4 test.t4.i1 1 Using where
1 PRIMARY t3 ALL PRIMARY NULL NULL NULL 9 Using where; Using join buffer (flat, BNL join)
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 Using join buffer (flat, BNL join)
2 MATERIALIZED t4 ALL NULL NULL NULL NULL 3 Using where
SELECT /*+ NO_SEMIJOIN(@subq1) */ t1.c1, t2.i1
......@@ -875,8 +875,8 @@ WHERE t4.c1 < 'o'
AND t1.i1 <= t3.i2_key;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 2
1 PRIMARY t3 eq_ref PRIMARY PRIMARY 4 test.t4.i1 1 Using where
1 PRIMARY t3 ALL PRIMARY NULL NULL NULL 9 Using where; Using join buffer (flat, BNL join)
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 Using join buffer (flat, BNL join)
2 MATERIALIZED t4 ALL NULL NULL NULL NULL 3 Using where
SELECT /*+ NO_SEMIJOIN(@subq1) */ t1.c1, t2.i1, t3.i1
......
mysql-test/suite/gcol/r/gcol_select_myisam.result
View file @ 5b4a2d94
......@@ -1326,8 +1326,8 @@ WHERE t4.c1 < 'o'
AND t1.i1 <= t3.i2_key;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 2
1 PRIMARY t3 eq_ref PRIMARY,v_idx PRIMARY 4 test.t4.i1 1 Using where
1 PRIMARY t3 ALL PRIMARY,v_idx NULL NULL NULL 9 Range checked for each record (index map: 0x3)
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 Using join buffer (flat, BNL join)
2 MATERIALIZED t4 ALL NULL NULL NULL NULL 3 Using where
SELECT /*+ NO_SEMIJOIN(@subq1) */ t1.c1, t2.i1
......@@ -1382,8 +1382,8 @@ WHERE t4.c1 < 'o'
AND t1.i1 <= t3.i2_key;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 2
1 PRIMARY t3 eq_ref PRIMARY,v_idx,v_idx2 PRIMARY 4 test.t4.i1 1 Using where
1 PRIMARY t3 ALL PRIMARY,v_idx,v_idx2 NULL NULL NULL 9 Range checked for each record (index map: 0x7)
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 Using join buffer (flat, BNL join)
2 MATERIALIZED t4 ALL NULL NULL NULL NULL 3 Using where
SELECT /*+ NO_SEMIJOIN(@subq1) */ t1.c1, t2.i1
......@@ -1440,8 +1440,8 @@ WHERE t4.c1 < 'o'
AND t1.i1 <= t3.i2_key;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 2
1 PRIMARY t3 eq_ref PRIMARY,v_idx2 PRIMARY 4 test.t4.i1 1 Using where
1 PRIMARY t3 ALL PRIMARY,v_idx2 NULL NULL NULL 9 Range checked for each record (index map: 0x3)
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 Using join buffer (flat, BNL join)
2 MATERIALIZED t4 ALL NULL NULL NULL NULL 3 Using where
SELECT /*+ NO_SEMIJOIN(@subq1) */ t1.c1, t2.i1
......@@ -1507,8 +1507,8 @@ WHERE t4.c1 < 'o'
AND t1.i1 <= t3.i2_key;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 2
1 PRIMARY t3 eq_ref PRIMARY,v_idx PRIMARY 4 test.t4.i1 1 Using where
1 PRIMARY t3 ALL PRIMARY,v_idx NULL NULL NULL 9 Range checked for each record (index map: 0x3)
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 Using join buffer (flat, BNL join)
2 MATERIALIZED t4 ALL NULL NULL NULL NULL 3 Using where
SELECT /*+ NO_SEMIJOIN(@subq1) */ t1.c1, t2.i1, t3.i1
......
mysql-test/suite/perfschema/r/batch_table_io_func.result
View file @ 5b4a2d94
......@@ -118,8 +118,8 @@ explain extended select t1.*, t2.*, t3.*
from t1 join t2 using (id1) join t3 using (id2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 10 100.00
1 SIMPLE t2 ALL NULL NULL NULL NULL 100 100.00 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t3 ALL NULL NULL NULL NULL 1000 100.00 Using where; Using join buffer (incremental, BNL join)
1 SIMPLE t2 ALL NULL NULL NULL NULL 100 10.00 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t3 ALL NULL NULL NULL NULL 1000 1.00 Using where; Using join buffer (incremental, BNL join)
Warnings:
Note 1003 select `test`.`t1`.`id1` AS `id1`,`test`.`t1`.`a` AS `a`,`test`.`t2`.`id1` AS `id1`,`test`.`t2`.`id2` AS `id2`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`id2` AS `id2`,`test`.`t3`.`id3` AS `id3`,`test`.`t3`.`c` AS `c` from `test`.`t1` join `test`.`t2` join `test`.`t3` where `test`.`t3`.`id2` = `test`.`t2`.`id2` and `test`.`t2`.`id1` = `test`.`t1`.`id1`
call before_payload();
......
sql/sql_select.cc
View file @ 5b4a2d94
......@@ -9033,9 +9033,6 @@ double table_multi_eq_cond_selectivity(JOIN *join, uint idx, JOIN_TAB *s,
if (!cond_equal || !cond_equal->current_level.elements)
return sel;
if (!s->keyuse)
return sel;
Item_equal *item_equal;
List_iterator_fast<Item_equal> it(cond_equal->current_level);
TABLE *table= s->table;
......@@ -9126,7 +9123,7 @@ double table_multi_eq_cond_selectivity(JOIN *join, uint idx, JOIN_TAB *s,
curr_eq_fld_sel= get_column_avg_frequency(fld) /
fld->table->stat_records();
if (curr_eq_fld_sel < 1.0)
set_if_bigger(eq_fld_sel, curr_eq_fld_sel);
set_if_smaller(eq_fld_sel, curr_eq_fld_sel);
}
sel*= eq_fld_sel;
}
......
sql/sql_statistics.cc
View file @ 5b4a2d94
......@@ -3700,7 +3700,7 @@ double get_column_avg_frequency(Field * field)
Column_statistics *col_stats= field->read_stats;
if (!col_stats)
if (!is_eits_usable(field))
res= (double)table->stat_records();
else
res= col_stats->get_avg_frequency();
......
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