From a7abddeffa6a760ce948c2dfb007cdf3f1a369d5 Mon Sep 17 00:00:00 2001 From: Michael Widenius Date: Fri, 9 Mar 2018 14:05:35 +0200 Subject: Create 'main' test directory and move 't' and 'r' there --- mysql-test/r/selectivity.result | 1535 --------------------------------------- 1 file changed, 1535 deletions(-) delete mode 100644 mysql-test/r/selectivity.result (limited to 'mysql-test/r/selectivity.result') diff --git a/mysql-test/r/selectivity.result b/mysql-test/r/selectivity.result deleted file mode 100644 index 9cb6ee3e9bf..00000000000 --- a/mysql-test/r/selectivity.result +++ /dev/null @@ -1,1535 +0,0 @@ -drop table if exists t0,t1,t2,t3; -select @@global.use_stat_tables; -@@global.use_stat_tables -COMPLEMENTARY -select @@session.use_stat_tables; -@@session.use_stat_tables -COMPLEMENTARY -set @save_use_stat_tables=@@use_stat_tables; -set use_stat_tables='preferably'; -set @save_optimizer_use_condition_selectivity=@@optimizer_use_condition_selectivity; -set @save_histogram_size=@@histogram_size; -set @save_histogram_type=@@histogram_type; -set optimizer_use_condition_selectivity=3; -create table t1 (a int); -insert into t1 values -(9), (3), (2), (NULL), (NULL), (2), (NULL), (1), (5), (NULL); -analyze table t1; -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status OK -select * from mysql.column_stats; -db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size hist_type histogram -test t1 a 1 9 0.4000 4.0000 1.2000 0 NULL NULL -flush table t1; -explain extended -select * from t1 where a is null; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 10 40.00 Using where -Warnings: -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` is null -explain extended -select * from t1 where a is not null; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 10 60.00 Using where -Warnings: -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` is not null -drop table t1; -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -DROP DATABASE IF EXISTS dbt3_s001; -CREATE DATABASE dbt3_s001; -use dbt3_s001; -=== Q2 === -set optimizer_use_condition_selectivity=5; -explain extended -select -s_acctbal, s_name, n_name, p_partkey, p_mfgr, s_address, s_phone, s_comment -from -part, supplier, partsupp, nation, region -where -p_partkey = ps_partkey -and s_suppkey = ps_suppkey -and p_size = 9 -and p_type like '%TIN' - and s_nationkey = n_nationkey -and n_regionkey = r_regionkey -and r_name = 'ASIA' - and ps_supplycost = ( -select -min(ps_supplycost) -from -partsupp, supplier, nation, region -where -p_partkey = ps_partkey -and s_suppkey = ps_suppkey -and s_nationkey = n_nationkey -and n_regionkey = r_regionkey -and r_name = 'ASIA' - ) -order by -s_acctbal desc, n_name, s_name, p_partkey; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY part ALL PRIMARY NULL NULL NULL 200 0.31 Using where; Using temporary; Using filesort -1 PRIMARY partsupp ref PRIMARY,i_ps_partkey,i_ps_suppkey PRIMARY 4 dbt3_s001.part.p_partkey 3 100.00 Using where -1 PRIMARY supplier eq_ref PRIMARY,i_s_nationkey PRIMARY 4 dbt3_s001.partsupp.ps_suppkey 1 100.00 Using where -1 PRIMARY nation eq_ref PRIMARY,i_n_regionkey PRIMARY 4 dbt3_s001.supplier.s_nationkey 1 100.00 Using where -1 PRIMARY region eq_ref PRIMARY PRIMARY 4 dbt3_s001.nation.n_regionkey 1 20.00 Using where -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 PRIMARY 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 -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` = <`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` -set optimizer_use_condition_selectivity=4; -explain extended -select -s_acctbal, s_name, n_name, p_partkey, p_mfgr, s_address, s_phone, s_comment -from -part, supplier, partsupp, nation, region -where -p_partkey = ps_partkey -and s_suppkey = ps_suppkey -and p_size = 9 -and p_type like '%TIN' - and s_nationkey = n_nationkey -and n_regionkey = r_regionkey -and r_name = 'ASIA' - and ps_supplycost = ( -select -min(ps_supplycost) -from -partsupp, supplier, nation, region -where -p_partkey = ps_partkey -and s_suppkey = ps_suppkey -and s_nationkey = n_nationkey -and n_regionkey = r_regionkey -and r_name = 'ASIA' - ) -order by -s_acctbal desc, n_name, s_name, p_partkey; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY region ALL PRIMARY NULL NULL NULL 5 20.00 Using where; Using temporary; Using filesort -1 PRIMARY nation ref PRIMARY,i_n_regionkey i_n_regionkey 5 dbt3_s001.region.r_regionkey 5 100.00 -1 PRIMARY supplier ref PRIMARY,i_s_nationkey i_s_nationkey 5 dbt3_s001.nation.n_nationkey 1 100.00 -1 PRIMARY part ALL PRIMARY NULL NULL NULL 200 2.08 Using where; Using join buffer (flat, BNL join) -1 PRIMARY partsupp eq_ref PRIMARY,i_ps_partkey,i_ps_suppkey PRIMARY 8 dbt3_s001.part.p_partkey,dbt3_s001.supplier.s_suppkey 1 100.00 Using where -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 PRIMARY 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 -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` = <`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` -=== Q15 === -create view revenue0 (supplier_no, total_revenue) as -select l_suppkey, sum(l_extendedprice * (1 - l_discount)) -from lineitem -where -l_shipdate >= '1995-08-01' - and l_shipdate < date_add('1995-08-01', interval 90 day) -group by l_suppkey; -set @save_optimizer_switch=@@optimizer_switch; -set optimizer_switch='index_condition_pushdown=off'; -set optimizer_use_condition_selectivity=1; -EXPLAIN EXTENDED select s_suppkey, s_name, s_address, s_phone, total_revenue -from supplier, revenue0 -where s_suppkey = supplier_no -and total_revenue = (select max(total_revenue) from revenue0) -order by s_suppkey; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY supplier ALL PRIMARY NULL NULL NULL 10 100.00 Using filesort -1 PRIMARY ref key0 key0 5 dbt3_s001.supplier.s_suppkey 10 100.00 Using where -3 DERIVED lineitem range i_l_shipdate,i_l_suppkey i_l_shipdate 4 NULL 268 100.00 Using where; Using temporary; Using filesort -2 SUBQUERY ALL NULL NULL NULL NULL 268 100.00 -4 DERIVED lineitem range i_l_shipdate i_l_shipdate 4 NULL 268 100.00 Using where; Using temporary; Using filesort -Warnings: -Note 1003 /* select#1 */ select `dbt3_s001`.`supplier`.`s_suppkey` AS `s_suppkey`,`dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address`,`dbt3_s001`.`supplier`.`s_phone` AS `s_phone`,`revenue0`.`total_revenue` AS `total_revenue` from `dbt3_s001`.`supplier` join `dbt3_s001`.`revenue0` where `revenue0`.`supplier_no` = `dbt3_s001`.`supplier`.`s_suppkey` and `revenue0`.`total_revenue` = (/* select#2 */ select max(`revenue0`.`total_revenue`) from `dbt3_s001`.`revenue0`) order by `dbt3_s001`.`supplier`.`s_suppkey` -select s_suppkey, s_name, s_address, s_phone, total_revenue -from supplier, revenue0 -where s_suppkey = supplier_no -and total_revenue = (select max(total_revenue) from revenue0) -order by s_suppkey; -s_suppkey s_name s_address s_phone total_revenue -1 Supplier#000000001 N kD4on9OM Ipw3,gf0JBoQDd7tgrzrddZ 27-918-335-1736 729084.7773 -set optimizer_use_condition_selectivity=3; -EXPLAIN EXTENDED select s_suppkey, s_name, s_address, s_phone, total_revenue -from supplier, revenue0 -where s_suppkey = supplier_no -and total_revenue = (select max(total_revenue) from revenue0) -order by s_suppkey; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY supplier ALL PRIMARY NULL NULL NULL 10 100.00 Using filesort -1 PRIMARY ref key0 key0 5 dbt3_s001.supplier.s_suppkey 10 100.00 Using where -3 DERIVED lineitem range i_l_shipdate,i_l_suppkey i_l_shipdate 4 NULL 268 100.00 Using where; Using temporary; Using filesort -2 SUBQUERY ALL NULL NULL NULL NULL 268 100.00 -4 DERIVED lineitem range i_l_shipdate i_l_shipdate 4 NULL 268 100.00 Using where; Using temporary; Using filesort -Warnings: -Note 1003 /* select#1 */ select `dbt3_s001`.`supplier`.`s_suppkey` AS `s_suppkey`,`dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address`,`dbt3_s001`.`supplier`.`s_phone` AS `s_phone`,`revenue0`.`total_revenue` AS `total_revenue` from `dbt3_s001`.`supplier` join `dbt3_s001`.`revenue0` where `revenue0`.`supplier_no` = `dbt3_s001`.`supplier`.`s_suppkey` and `revenue0`.`total_revenue` = (/* select#2 */ select max(`revenue0`.`total_revenue`) from `dbt3_s001`.`revenue0`) order by `dbt3_s001`.`supplier`.`s_suppkey` -select s_suppkey, s_name, s_address, s_phone, total_revenue -from supplier, revenue0 -where s_suppkey = supplier_no -and total_revenue = (select max(total_revenue) from revenue0) -order by s_suppkey; -s_suppkey s_name s_address s_phone total_revenue -1 Supplier#000000001 N kD4on9OM Ipw3,gf0JBoQDd7tgrzrddZ 27-918-335-1736 729084.7773 -set optimizer_switch=@save_optimizer_switch; -drop view revenue0; -=== Q16 === -set optimizer_use_condition_selectivity=1; -EXPLAIN EXTENDED select p_brand, p_type, p_size, count(distinct ps_suppkey) as supplier_cnt -from partsupp, part -where p_partkey = ps_partkey -and p_brand <> 'Brand#11' - and p_type not like 'SMALL POLISHED%' - and p_size in (49, 37, 27, 5, 40, 6, 22, 8) -and ps_suppkey not in (select s_suppkey from supplier -where s_comment like '%Customer%Complaints%') -group by p_brand, p_type, p_size -order by supplier_cnt desc, p_brand, p_type, p_size; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY part ALL PRIMARY NULL NULL NULL 200 100.00 Using where; Using temporary; Using filesort -1 PRIMARY partsupp ref PRIMARY,i_ps_partkey PRIMARY 4 dbt3_s001.part.p_partkey 3 100.00 Using where; Using index -2 MATERIALIZED supplier ALL PRIMARY NULL NULL NULL 10 100.00 Using where -Warnings: -Note 1003 /* select#1 */ select `dbt3_s001`.`part`.`p_brand` AS `p_brand`,`dbt3_s001`.`part`.`p_type` AS `p_type`,`dbt3_s001`.`part`.`p_size` AS `p_size`,count(distinct `dbt3_s001`.`partsupp`.`ps_suppkey`) AS `supplier_cnt` from `dbt3_s001`.`partsupp` join `dbt3_s001`.`part` where `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`part`.`p_brand` <> 'Brand#11' and `dbt3_s001`.`part`.`p_type` not like 'SMALL POLISHED%' and `dbt3_s001`.`part`.`p_size` in (49,37,27,5,40,6,22,8) and !<`dbt3_s001`.`partsupp`.`ps_suppkey`>((`dbt3_s001`.`partsupp`.`ps_suppkey`,`dbt3_s001`.`partsupp`.`ps_suppkey` in ( (/* select#2 */ select `dbt3_s001`.`supplier`.`s_suppkey` from `dbt3_s001`.`supplier` where `dbt3_s001`.`supplier`.`s_comment` like '%Customer%Complaints%' ), (`dbt3_s001`.`partsupp`.`ps_suppkey` in on distinct_key where `dbt3_s001`.`partsupp`.`ps_suppkey` = ``.`s_suppkey`)))) group by `dbt3_s001`.`part`.`p_brand`,`dbt3_s001`.`part`.`p_type`,`dbt3_s001`.`part`.`p_size` order by count(distinct `dbt3_s001`.`partsupp`.`ps_suppkey`) desc,`dbt3_s001`.`part`.`p_brand`,`dbt3_s001`.`part`.`p_type`,`dbt3_s001`.`part`.`p_size` -select p_brand, p_type, p_size, count(distinct ps_suppkey) as supplier_cnt -from partsupp, part -where p_partkey = ps_partkey -and p_brand <> 'Brand#11' - and p_type not like 'SMALL POLISHED%' - and p_size in (49, 37, 27, 5, 40, 6, 22, 8) -and ps_suppkey not in (select s_suppkey from supplier -where s_comment like '%Customer%Complaints%') -group by p_brand, p_type, p_size -order by supplier_cnt desc, p_brand, p_type, p_size; -p_brand p_type p_size supplier_cnt -Brand#21 MEDIUM ANODIZED TIN 8 4 -Brand#22 PROMO PLATED TIN 5 4 -Brand#24 MEDIUM BURNISHED NICKEL 6 4 -Brand#24 SMALL ANODIZED STEEL 40 4 -Brand#32 MEDIUM BURNISHED BRASS 49 4 -Brand#33 MEDIUM POLISHED BRASS 49 4 -Brand#41 STANDARD BRUSHED NICKEL 40 4 -Brand#44 PROMO POLISHED STEEL 5 4 -Brand#45 PROMO ANODIZED BRASS 22 4 -Brand#53 STANDARD BRUSHED STEEL 27 4 -Brand#54 MEDIUM POLISHED BRASS 22 4 -Brand#54 STANDARD ANODIZED BRASS 22 4 -Brand#13 LARGE BRUSHED STEEL 8 2 -Brand#25 ECONOMY BURNISHED COPPER 27 2 -Brand#44 STANDARD PLATED TIN 37 1 -Brand#51 ECONOMY POLISHED STEEL 49 1 -set optimizer_use_condition_selectivity=3; -EXPLAIN EXTENDED select p_brand, p_type, p_size, count(distinct ps_suppkey) as supplier_cnt -from partsupp, part -where p_partkey = ps_partkey -and p_brand <> 'Brand#11' - and p_type not like 'SMALL POLISHED%' - and p_size in (49, 37, 27, 5, 40, 6, 22, 8) -and ps_suppkey not in (select s_suppkey from supplier -where s_comment like '%Customer%Complaints%') -group by p_brand, p_type, p_size -order by supplier_cnt desc, p_brand, p_type, p_size; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY part ALL PRIMARY NULL NULL NULL 200 16.67 Using where; Using temporary; Using filesort -1 PRIMARY partsupp ref PRIMARY,i_ps_partkey PRIMARY 4 dbt3_s001.part.p_partkey 3 100.00 Using where; Using index -2 MATERIALIZED supplier ALL PRIMARY NULL NULL NULL 10 100.00 Using where -Warnings: -Note 1003 /* select#1 */ select `dbt3_s001`.`part`.`p_brand` AS `p_brand`,`dbt3_s001`.`part`.`p_type` AS `p_type`,`dbt3_s001`.`part`.`p_size` AS `p_size`,count(distinct `dbt3_s001`.`partsupp`.`ps_suppkey`) AS `supplier_cnt` from `dbt3_s001`.`partsupp` join `dbt3_s001`.`part` where `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`part`.`p_brand` <> 'Brand#11' and `dbt3_s001`.`part`.`p_type` not like 'SMALL POLISHED%' and `dbt3_s001`.`part`.`p_size` in (49,37,27,5,40,6,22,8) and !<`dbt3_s001`.`partsupp`.`ps_suppkey`>((`dbt3_s001`.`partsupp`.`ps_suppkey`,`dbt3_s001`.`partsupp`.`ps_suppkey` in ( (/* select#2 */ select `dbt3_s001`.`supplier`.`s_suppkey` from `dbt3_s001`.`supplier` where `dbt3_s001`.`supplier`.`s_comment` like '%Customer%Complaints%' ), (`dbt3_s001`.`partsupp`.`ps_suppkey` in on distinct_key where `dbt3_s001`.`partsupp`.`ps_suppkey` = ``.`s_suppkey`)))) group by `dbt3_s001`.`part`.`p_brand`,`dbt3_s001`.`part`.`p_type`,`dbt3_s001`.`part`.`p_size` order by count(distinct `dbt3_s001`.`partsupp`.`ps_suppkey`) desc,`dbt3_s001`.`part`.`p_brand`,`dbt3_s001`.`part`.`p_type`,`dbt3_s001`.`part`.`p_size` -select p_brand, p_type, p_size, count(distinct ps_suppkey) as supplier_cnt -from partsupp, part -where p_partkey = ps_partkey -and p_brand <> 'Brand#11' - and p_type not like 'SMALL POLISHED%' - and p_size in (49, 37, 27, 5, 40, 6, 22, 8) -and ps_suppkey not in (select s_suppkey from supplier -where s_comment like '%Customer%Complaints%') -group by p_brand, p_type, p_size -order by supplier_cnt desc, p_brand, p_type, p_size; -p_brand p_type p_size supplier_cnt -Brand#21 MEDIUM ANODIZED TIN 8 4 -Brand#22 PROMO PLATED TIN 5 4 -Brand#24 MEDIUM BURNISHED NICKEL 6 4 -Brand#24 SMALL ANODIZED STEEL 40 4 -Brand#32 MEDIUM BURNISHED BRASS 49 4 -Brand#33 MEDIUM POLISHED BRASS 49 4 -Brand#41 STANDARD BRUSHED NICKEL 40 4 -Brand#44 PROMO POLISHED STEEL 5 4 -Brand#45 PROMO ANODIZED BRASS 22 4 -Brand#53 STANDARD BRUSHED STEEL 27 4 -Brand#54 MEDIUM POLISHED BRASS 22 4 -Brand#54 STANDARD ANODIZED BRASS 22 4 -Brand#13 LARGE BRUSHED STEEL 8 2 -Brand#25 ECONOMY BURNISHED COPPER 27 2 -Brand#44 STANDARD PLATED TIN 37 1 -Brand#51 ECONOMY POLISHED STEEL 49 1 -set optimizer_use_condition_selectivity=4; -EXPLAIN EXTENDED select p_brand, p_type, p_size, count(distinct ps_suppkey) as supplier_cnt -from partsupp, part -where p_partkey = ps_partkey -and p_brand <> 'Brand#11' - and p_type not like 'SMALL POLISHED%' - and p_size in (49, 37, 27, 5, 40, 6, 22, 8) -and ps_suppkey not in (select s_suppkey from supplier -where s_comment like '%Customer%Complaints%') -group by p_brand, p_type, p_size -order by supplier_cnt desc, p_brand, p_type, p_size; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY part ALL PRIMARY NULL NULL NULL 200 16.67 Using where; Using temporary; Using filesort -1 PRIMARY partsupp ref PRIMARY,i_ps_partkey PRIMARY 4 dbt3_s001.part.p_partkey 3 100.00 Using where; Using index -2 MATERIALIZED supplier ALL PRIMARY NULL NULL NULL 10 100.00 Using where -Warnings: -Note 1003 /* select#1 */ select `dbt3_s001`.`part`.`p_brand` AS `p_brand`,`dbt3_s001`.`part`.`p_type` AS `p_type`,`dbt3_s001`.`part`.`p_size` AS `p_size`,count(distinct `dbt3_s001`.`partsupp`.`ps_suppkey`) AS `supplier_cnt` from `dbt3_s001`.`partsupp` join `dbt3_s001`.`part` where `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`part`.`p_brand` <> 'Brand#11' and `dbt3_s001`.`part`.`p_type` not like 'SMALL POLISHED%' and `dbt3_s001`.`part`.`p_size` in (49,37,27,5,40,6,22,8) and !<`dbt3_s001`.`partsupp`.`ps_suppkey`>((`dbt3_s001`.`partsupp`.`ps_suppkey`,`dbt3_s001`.`partsupp`.`ps_suppkey` in ( (/* select#2 */ select `dbt3_s001`.`supplier`.`s_suppkey` from `dbt3_s001`.`supplier` where `dbt3_s001`.`supplier`.`s_comment` like '%Customer%Complaints%' ), (`dbt3_s001`.`partsupp`.`ps_suppkey` in on distinct_key where `dbt3_s001`.`partsupp`.`ps_suppkey` = ``.`s_suppkey`)))) group by `dbt3_s001`.`part`.`p_brand`,`dbt3_s001`.`part`.`p_type`,`dbt3_s001`.`part`.`p_size` order by count(distinct `dbt3_s001`.`partsupp`.`ps_suppkey`) desc,`dbt3_s001`.`part`.`p_brand`,`dbt3_s001`.`part`.`p_type`,`dbt3_s001`.`part`.`p_size` -select p_brand, p_type, p_size, count(distinct ps_suppkey) as supplier_cnt -from partsupp, part -where p_partkey = ps_partkey -and p_brand <> 'Brand#11' - and p_type not like 'SMALL POLISHED%' - and p_size in (49, 37, 27, 5, 40, 6, 22, 8) -and ps_suppkey not in (select s_suppkey from supplier -where s_comment like '%Customer%Complaints%') -group by p_brand, p_type, p_size -order by supplier_cnt desc, p_brand, p_type, p_size; -p_brand p_type p_size supplier_cnt -Brand#21 MEDIUM ANODIZED TIN 8 4 -Brand#22 PROMO PLATED TIN 5 4 -Brand#24 MEDIUM BURNISHED NICKEL 6 4 -Brand#24 SMALL ANODIZED STEEL 40 4 -Brand#32 MEDIUM BURNISHED BRASS 49 4 -Brand#33 MEDIUM POLISHED BRASS 49 4 -Brand#41 STANDARD BRUSHED NICKEL 40 4 -Brand#44 PROMO POLISHED STEEL 5 4 -Brand#45 PROMO ANODIZED BRASS 22 4 -Brand#53 STANDARD BRUSHED STEEL 27 4 -Brand#54 MEDIUM POLISHED BRASS 22 4 -Brand#54 STANDARD ANODIZED BRASS 22 4 -Brand#13 LARGE BRUSHED STEEL 8 2 -Brand#25 ECONOMY BURNISHED COPPER 27 2 -Brand#44 STANDARD PLATED TIN 37 1 -Brand#51 ECONOMY POLISHED STEEL 49 1 -=== Q18 === -set optimizer_use_condition_selectivity=1; -EXPLAIN EXTENDED select -c_name, c_custkey, o_orderkey, o_orderdate, o_totalprice, sum(l_quantity) -from customer, orders, lineitem -where -o_orderkey in (select l_orderkey from lineitem -group by l_orderkey having sum(l_quantity) > 250) -and c_custkey = o_custkey -and o_orderkey = l_orderkey -group by c_name, c_custkey, o_orderkey, o_orderdate, o_totalprice -order by o_totalprice desc, o_orderdate; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY orders ALL PRIMARY,i_o_custkey NULL NULL NULL 1500 100.00 Using where; Using temporary; Using filesort -1 PRIMARY eq_ref distinct_key distinct_key 4 dbt3_s001.orders.o_orderkey 1 100.00 -1 PRIMARY customer eq_ref PRIMARY PRIMARY 4 dbt3_s001.orders.o_custkey 1 100.00 -1 PRIMARY lineitem ref PRIMARY,i_l_orderkey,i_l_orderkey_quantity i_l_orderkey_quantity 4 dbt3_s001.orders.o_orderkey 4 100.00 Using index -2 MATERIALIZED lineitem index NULL i_l_orderkey_quantity 13 NULL 6005 100.00 Using index -Warnings: -Note 1003 /* select#1 */ select `dbt3_s001`.`customer`.`c_name` AS `c_name`,`dbt3_s001`.`customer`.`c_custkey` AS `c_custkey`,`dbt3_s001`.`orders`.`o_orderkey` AS `o_orderkey`,`dbt3_s001`.`orders`.`o_orderDATE` AS `o_orderdate`,`dbt3_s001`.`orders`.`o_totalprice` AS `o_totalprice`,sum(`dbt3_s001`.`lineitem`.`l_quantity`) AS `sum(l_quantity)` from (/* select#2 */ select `dbt3_s001`.`lineitem`.`l_orderkey` from `dbt3_s001`.`lineitem` group by `dbt3_s001`.`lineitem`.`l_orderkey` having sum(`dbt3_s001`.`lineitem`.`l_quantity`) > 250) join `dbt3_s001`.`customer` join `dbt3_s001`.`orders` join `dbt3_s001`.`lineitem` where `dbt3_s001`.`customer`.`c_custkey` = `dbt3_s001`.`orders`.`o_custkey` and ``.`l_orderkey` = `dbt3_s001`.`orders`.`o_orderkey` and `dbt3_s001`.`lineitem`.`l_orderkey` = `dbt3_s001`.`orders`.`o_orderkey` group by `dbt3_s001`.`customer`.`c_name`,`dbt3_s001`.`customer`.`c_custkey`,`dbt3_s001`.`orders`.`o_orderkey`,`dbt3_s001`.`orders`.`o_orderDATE`,`dbt3_s001`.`orders`.`o_totalprice` order by `dbt3_s001`.`orders`.`o_totalprice` desc,`dbt3_s001`.`orders`.`o_orderDATE` -select -c_name, c_custkey, o_orderkey, o_orderdate, o_totalprice, sum(l_quantity) -from customer, orders, lineitem -where -o_orderkey in (select l_orderkey from lineitem -group by l_orderkey having sum(l_quantity) > 250) -and c_custkey = o_custkey -and o_orderkey = l_orderkey -group by c_name, c_custkey, o_orderkey, o_orderdate, o_totalprice -order by o_totalprice desc, o_orderdate; -c_name c_custkey o_orderkey o_orderdate o_totalprice sum(l_quantity) -Customer#000000070 70 2567 1998-02-27 263411.29 266 -Customer#000000010 10 4421 1997-04-04 258779.02 255 -Customer#000000082 82 3460 1995-10-03 245976.74 254 -Customer#000000068 68 2208 1995-05-01 245388.06 256 -set optimizer_use_condition_selectivity=3; -EXPLAIN EXTENDED select -c_name, c_custkey, o_orderkey, o_orderdate, o_totalprice, sum(l_quantity) -from customer, orders, lineitem -where -o_orderkey in (select l_orderkey from lineitem -group by l_orderkey having sum(l_quantity) > 250) -and c_custkey = o_custkey -and o_orderkey = l_orderkey -group by c_name, c_custkey, o_orderkey, o_orderdate, o_totalprice -order by o_totalprice desc, o_orderdate; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY ALL distinct_key NULL NULL NULL 6005 0.00 Using temporary; Using filesort -1 PRIMARY orders eq_ref PRIMARY,i_o_custkey PRIMARY 4 .l_orderkey 1 100.00 Using where -1 PRIMARY customer eq_ref PRIMARY PRIMARY 4 dbt3_s001.orders.o_custkey 1 100.00 -1 PRIMARY lineitem ref PRIMARY,i_l_orderkey,i_l_orderkey_quantity PRIMARY 4 .l_orderkey 4 100.00 -2 MATERIALIZED lineitem index NULL i_l_orderkey_quantity 13 NULL 6005 100.00 Using index -Warnings: -Note 1003 /* select#1 */ select `dbt3_s001`.`customer`.`c_name` AS `c_name`,`dbt3_s001`.`customer`.`c_custkey` AS `c_custkey`,`dbt3_s001`.`orders`.`o_orderkey` AS `o_orderkey`,`dbt3_s001`.`orders`.`o_orderDATE` AS `o_orderdate`,`dbt3_s001`.`orders`.`o_totalprice` AS `o_totalprice`,sum(`dbt3_s001`.`lineitem`.`l_quantity`) AS `sum(l_quantity)` from (/* select#2 */ select `dbt3_s001`.`lineitem`.`l_orderkey` from `dbt3_s001`.`lineitem` group by `dbt3_s001`.`lineitem`.`l_orderkey` having sum(`dbt3_s001`.`lineitem`.`l_quantity`) > 250) join `dbt3_s001`.`customer` join `dbt3_s001`.`orders` join `dbt3_s001`.`lineitem` where `dbt3_s001`.`customer`.`c_custkey` = `dbt3_s001`.`orders`.`o_custkey` and `dbt3_s001`.`orders`.`o_orderkey` = ``.`l_orderkey` and `dbt3_s001`.`lineitem`.`l_orderkey` = ``.`l_orderkey` group by `dbt3_s001`.`customer`.`c_name`,`dbt3_s001`.`customer`.`c_custkey`,`dbt3_s001`.`orders`.`o_orderkey`,`dbt3_s001`.`orders`.`o_orderDATE`,`dbt3_s001`.`orders`.`o_totalprice` order by `dbt3_s001`.`orders`.`o_totalprice` desc,`dbt3_s001`.`orders`.`o_orderDATE` -select -c_name, c_custkey, o_orderkey, o_orderdate, o_totalprice, sum(l_quantity) -from customer, orders, lineitem -where -o_orderkey in (select l_orderkey from lineitem -group by l_orderkey having sum(l_quantity) > 250) -and c_custkey = o_custkey -and o_orderkey = l_orderkey -group by c_name, c_custkey, o_orderkey, o_orderdate, o_totalprice -order by o_totalprice desc, o_orderdate; -c_name c_custkey o_orderkey o_orderdate o_totalprice sum(l_quantity) -Customer#000000070 70 2567 1998-02-27 263411.29 266 -Customer#000000010 10 4421 1997-04-04 258779.02 255 -Customer#000000082 82 3460 1995-10-03 245976.74 254 -Customer#000000068 68 2208 1995-05-01 245388.06 256 -=== Q22 === -set optimizer_use_condition_selectivity=1; -EXPLAIN EXTENDED select cntrycode, count(*) as numcust, sum(c_acctbal) as totacctbal -from ( -select substr(c_phone, 1, 2) as cntrycode, c_acctbal -from customer -where -substr(c_phone, 1, 2) in ('10', '20', '14', '19', '11', '28', '25') -and c_acctbal > (select avg(c_acctbal) from customer -where c_acctbal > 0.00 -and substr(c_phone, 1, 2) in -('10', '20', '14', '19', '11', '28', '25')) -and not exists (select * from orders where o_custkey = c_custkey) -) as vip -group by cntrycode -order by cntrycode; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY customer ALL NULL NULL NULL NULL 150 100.00 Using where; Using temporary; Using filesort -4 DEPENDENT SUBQUERY orders ref i_o_custkey i_o_custkey 5 dbt3_s001.customer.c_custkey 15 100.00 Using index -3 SUBQUERY customer ALL NULL NULL NULL NULL 150 100.00 Using where -Warnings: -Note 1276 Field or reference 'dbt3_s001.customer.c_custkey' of SELECT #4 was resolved in SELECT #2 -Note 1003 /* select#1 */ select substr(`dbt3_s001`.`customer`.`c_phone`,1,2) AS `cntrycode`,count(0) AS `numcust`,sum(`dbt3_s001`.`customer`.`c_acctbal`) AS `totacctbal` from `dbt3_s001`.`customer` where substr(`dbt3_s001`.`customer`.`c_phone`,1,2) in ('10','20','14','19','11','28','25') and `dbt3_s001`.`customer`.`c_acctbal` > (/* select#3 */ select avg(`dbt3_s001`.`customer`.`c_acctbal`) from `dbt3_s001`.`customer` where `dbt3_s001`.`customer`.`c_acctbal` > 0.00 and substr(`dbt3_s001`.`customer`.`c_phone`,1,2) in ('10','20','14','19','11','28','25')) and !(1,<`dbt3_s001`.`customer`.`c_custkey`>(exists(/* select#4 */ select 1 from `dbt3_s001`.`orders` where `dbt3_s001`.`orders`.`o_custkey` = `dbt3_s001`.`customer`.`c_custkey`))) group by substr(`dbt3_s001`.`customer`.`c_phone`,1,2) order by substr(`dbt3_s001`.`customer`.`c_phone`,1,2) -select cntrycode, count(*) as numcust, sum(c_acctbal) as totacctbal -from ( -select substr(c_phone, 1, 2) as cntrycode, c_acctbal -from customer -where -substr(c_phone, 1, 2) in ('10', '20', '14', '19', '11', '28', '25') -and c_acctbal > (select avg(c_acctbal) from customer -where c_acctbal > 0.00 -and substr(c_phone, 1, 2) in -('10', '20', '14', '19', '11', '28', '25')) -and not exists (select * from orders where o_custkey = c_custkey) -) as vip -group by cntrycode -order by cntrycode; -cntrycode numcust totacctbal -11 4 29942.58 -19 2 17120.35 -20 1 9091.82 -28 2 14755.5 -set optimizer_use_condition_selectivity=3; -EXPLAIN EXTENDED select cntrycode, count(*) as numcust, sum(c_acctbal) as totacctbal -from ( -select substr(c_phone, 1, 2) as cntrycode, c_acctbal -from customer -where -substr(c_phone, 1, 2) in ('10', '20', '14', '19', '11', '28', '25') -and c_acctbal > (select avg(c_acctbal) from customer -where c_acctbal > 0.00 -and substr(c_phone, 1, 2) in -('10', '20', '14', '19', '11', '28', '25')) -and not exists (select * from orders where o_custkey = c_custkey) -) as vip -group by cntrycode -order by cntrycode; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY customer ALL NULL NULL NULL NULL 150 100.00 Using where; Using temporary; Using filesort -4 DEPENDENT SUBQUERY orders ref i_o_custkey i_o_custkey 5 dbt3_s001.customer.c_custkey 15 100.00 Using index -3 SUBQUERY customer ALL NULL NULL NULL NULL 150 91.00 Using where -Warnings: -Note 1276 Field or reference 'dbt3_s001.customer.c_custkey' of SELECT #4 was resolved in SELECT #2 -Note 1003 /* select#1 */ select substr(`dbt3_s001`.`customer`.`c_phone`,1,2) AS `cntrycode`,count(0) AS `numcust`,sum(`dbt3_s001`.`customer`.`c_acctbal`) AS `totacctbal` from `dbt3_s001`.`customer` where substr(`dbt3_s001`.`customer`.`c_phone`,1,2) in ('10','20','14','19','11','28','25') and `dbt3_s001`.`customer`.`c_acctbal` > (/* select#3 */ select avg(`dbt3_s001`.`customer`.`c_acctbal`) from `dbt3_s001`.`customer` where `dbt3_s001`.`customer`.`c_acctbal` > 0.00 and substr(`dbt3_s001`.`customer`.`c_phone`,1,2) in ('10','20','14','19','11','28','25')) and !(1,<`dbt3_s001`.`customer`.`c_custkey`>(exists(/* select#4 */ select 1 from `dbt3_s001`.`orders` where `dbt3_s001`.`orders`.`o_custkey` = `dbt3_s001`.`customer`.`c_custkey`))) group by substr(`dbt3_s001`.`customer`.`c_phone`,1,2) order by substr(`dbt3_s001`.`customer`.`c_phone`,1,2) -select cntrycode, count(*) as numcust, sum(c_acctbal) as totacctbal -from ( -select substr(c_phone, 1, 2) as cntrycode, c_acctbal -from customer -where -substr(c_phone, 1, 2) in ('10', '20', '14', '19', '11', '28', '25') -and c_acctbal > (select avg(c_acctbal) from customer -where c_acctbal > 0.00 -and substr(c_phone, 1, 2) in -('10', '20', '14', '19', '11', '28', '25')) -and not exists (select * from orders where o_custkey = c_custkey) -) as vip -group by cntrycode -order by cntrycode; -cntrycode numcust totacctbal -11 4 29942.58 -19 2 17120.35 -20 1 9091.82 -28 2 14755.5 -=== Q20 === -set optimizer_use_condition_selectivity=1; -EXPLAIN EXTENDED select sql_calc_found_rows -s_name, s_address -from supplier, nation -where s_suppkey in (select ps_suppkey from partsupp -where ps_partkey in (select p_partkey from part -where p_name like 'g%') -and ps_availqty > -(select 0.5 * sum(l_quantity) -from lineitem -where l_partkey = ps_partkey -and l_suppkey = ps_suppkey -and l_shipdate >= date('1993-01-01') -and l_shipdate < date('1993-01-01') + -interval '1' year )) -and s_nationkey = n_nationkey -and n_name = 'UNITED STATES' -order by s_name -limit 10; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY supplier ALL PRIMARY,i_s_nationkey NULL NULL NULL 10 100.00 Using where; Using filesort -1 PRIMARY eq_ref distinct_key distinct_key 4 func 1 100.00 -1 PRIMARY nation eq_ref PRIMARY PRIMARY 4 dbt3_s001.supplier.s_nationkey 1 100.00 Using where -2 MATERIALIZED part ALL PRIMARY NULL NULL NULL 200 100.00 Using where -2 MATERIALIZED partsupp ref PRIMARY,i_ps_partkey,i_ps_suppkey PRIMARY 4 dbt3_s001.part.p_partkey 3 100.00 Using where -4 DEPENDENT SUBQUERY lineitem ref i_l_shipdate,i_l_suppkey_partkey,i_l_partkey,i_l_suppkey i_l_suppkey_partkey 10 dbt3_s001.partsupp.ps_partkey,dbt3_s001.partsupp.ps_suppkey 8 100.00 Using where -Warnings: -Note 1276 Field or reference 'dbt3_s001.partsupp.ps_partkey' of SELECT #4 was resolved in SELECT #2 -Note 1276 Field or reference 'dbt3_s001.partsupp.ps_suppkey' of SELECT #4 was resolved in SELECT #2 -Note 1003 /* select#1 */ select sql_calc_found_rows `dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address` from `dbt3_s001`.`supplier` semi join (`dbt3_s001`.`part` join `dbt3_s001`.`partsupp`) join `dbt3_s001`.`nation` where `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`nation`.`n_name` = 'UNITED STATES' and `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`partsupp`.`ps_availqty` > <`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((/* select#4 */ select 0.5 * sum(`dbt3_s001`.`lineitem`.`l_quantity`) from `dbt3_s001`.`lineitem` where `dbt3_s001`.`lineitem`.`l_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`lineitem`.`l_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`lineitem`.`l_shipDATE` >= (cast('1993-01-01' as date)) and `dbt3_s001`.`lineitem`.`l_shipDATE` < (cast('1993-01-01' as date) + interval '1' year))) and `dbt3_s001`.`part`.`p_name` like 'g%' order by `dbt3_s001`.`supplier`.`s_name` limit 10 -select sql_calc_found_rows -s_name, s_address -from supplier, nation -where s_suppkey in (select ps_suppkey from partsupp -where ps_partkey in (select p_partkey from part -where p_name like 'g%') -and ps_availqty > -(select 0.5 * sum(l_quantity) -from lineitem -where l_partkey = ps_partkey -and l_suppkey = ps_suppkey -and l_shipdate >= date('1993-01-01') -and l_shipdate < date('1993-01-01') + -interval '1' year )) -and s_nationkey = n_nationkey -and n_name = 'UNITED STATES' -order by s_name -limit 10; -s_name s_address -Supplier#000000010 Saygah3gYWMp72i PY -SELECT ((SELECT COUNT(*) FROM part WHERE p_name LIKE 'g%') / -(SELECT COUNT(*) FROM part)) AS sel; -sel -0.0600 -set optimizer_use_condition_selectivity=3; -EXPLAIN EXTENDED select sql_calc_found_rows -s_name, s_address -from supplier, nation -where s_suppkey in (select ps_suppkey from partsupp -where ps_partkey in (select p_partkey from part -where p_name like 'g%') -and ps_availqty > -(select 0.5 * sum(l_quantity) -from lineitem -where l_partkey = ps_partkey -and l_suppkey = ps_suppkey -and l_shipdate >= date('1993-01-01') -and l_shipdate < date('1993-01-01') + -interval '1' year )) -and s_nationkey = n_nationkey -and n_name = 'UNITED STATES' -order by s_name -limit 10; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY nation ALL PRIMARY NULL NULL NULL 25 4.00 Using where; Using temporary; Using filesort -1 PRIMARY supplier ref PRIMARY,i_s_nationkey i_s_nationkey 5 dbt3_s001.nation.n_nationkey 1 100.00 -1 PRIMARY part ALL PRIMARY NULL NULL NULL 200 4.17 Using where; Start temporary; Using join buffer (flat, BNL join) -1 PRIMARY partsupp eq_ref PRIMARY,i_ps_partkey,i_ps_suppkey PRIMARY 8 dbt3_s001.part.p_partkey,dbt3_s001.supplier.s_suppkey 1 100.00 Using where; End temporary -4 DEPENDENT SUBQUERY lineitem ref i_l_shipdate,i_l_suppkey_partkey,i_l_partkey,i_l_suppkey i_l_suppkey_partkey 10 dbt3_s001.partsupp.ps_partkey,dbt3_s001.partsupp.ps_suppkey 8 15.14 Using where -Warnings: -Note 1276 Field or reference 'dbt3_s001.partsupp.ps_partkey' of SELECT #4 was resolved in SELECT #2 -Note 1276 Field or reference 'dbt3_s001.partsupp.ps_suppkey' of SELECT #4 was resolved in SELECT #2 -Note 1003 /* select#1 */ select sql_calc_found_rows `dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address` from `dbt3_s001`.`supplier` semi join (`dbt3_s001`.`part` join `dbt3_s001`.`partsupp`) join `dbt3_s001`.`nation` where `dbt3_s001`.`supplier`.`s_nationkey` = `dbt3_s001`.`nation`.`n_nationkey` and `dbt3_s001`.`nation`.`n_name` = 'UNITED STATES' and `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`partsupp`.`ps_suppkey` = `dbt3_s001`.`supplier`.`s_suppkey` and `dbt3_s001`.`partsupp`.`ps_availqty` > <`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((/* select#4 */ select 0.5 * sum(`dbt3_s001`.`lineitem`.`l_quantity`) from `dbt3_s001`.`lineitem` where `dbt3_s001`.`lineitem`.`l_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`lineitem`.`l_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`lineitem`.`l_shipDATE` >= (cast('1993-01-01' as date)) and `dbt3_s001`.`lineitem`.`l_shipDATE` < (cast('1993-01-01' as date) + interval '1' year))) and `dbt3_s001`.`part`.`p_name` like 'g%' order by `dbt3_s001`.`supplier`.`s_name` limit 10 -select sql_calc_found_rows -s_name, s_address -from supplier, nation -where s_suppkey in (select ps_suppkey from partsupp -where ps_partkey in (select p_partkey from part -where p_name like 'g%') -and ps_availqty > -(select 0.5 * sum(l_quantity) -from lineitem -where l_partkey = ps_partkey -and l_suppkey = ps_suppkey -and l_shipdate >= date('1993-01-01') -and l_shipdate < date('1993-01-01') + -interval '1' year )) -and s_nationkey = n_nationkey -and n_name = 'UNITED STATES' -order by s_name -limit 10; -s_name s_address -Supplier#000000010 Saygah3gYWMp72i PY -set histogram_size=127; -ANALYZE TABLE part PERSISTENT FOR COLUMNS(p_name) INDEXES(); -Table Op Msg_type Msg_text -dbt3_s001.part analyze status Engine-independent statistics collected -dbt3_s001.part analyze status Table is already up to date -flush table part; -set optimizer_use_condition_selectivity=4; -EXPLAIN EXTENDED select sql_calc_found_rows -s_name, s_address -from supplier, nation -where s_suppkey in (select ps_suppkey from partsupp -where ps_partkey in (select p_partkey from part -where p_name like 'g%') -and ps_availqty > -(select 0.5 * sum(l_quantity) -from lineitem -where l_partkey = ps_partkey -and l_suppkey = ps_suppkey -and l_shipdate >= date('1993-01-01') -and l_shipdate < date('1993-01-01') + -interval '1' year )) -and s_nationkey = n_nationkey -and n_name = 'UNITED STATES' -order by s_name -limit 10; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY nation ALL PRIMARY NULL NULL NULL 25 4.00 Using where; Using temporary; Using filesort -1 PRIMARY supplier ref PRIMARY,i_s_nationkey i_s_nationkey 5 dbt3_s001.nation.n_nationkey 1 100.00 -1 PRIMARY part ALL PRIMARY NULL NULL NULL 200 7.03 Using where -1 PRIMARY partsupp eq_ref PRIMARY,i_ps_partkey,i_ps_suppkey PRIMARY 8 dbt3_s001.part.p_partkey,dbt3_s001.supplier.s_suppkey 1 100.00 Using where; FirstMatch(supplier) -4 DEPENDENT SUBQUERY lineitem ref i_l_shipdate,i_l_suppkey_partkey,i_l_partkey,i_l_suppkey i_l_suppkey_partkey 10 dbt3_s001.partsupp.ps_partkey,dbt3_s001.partsupp.ps_suppkey 8 15.14 Using where -Warnings: -Note 1276 Field or reference 'dbt3_s001.partsupp.ps_partkey' of SELECT #4 was resolved in SELECT #2 -Note 1276 Field or reference 'dbt3_s001.partsupp.ps_suppkey' of SELECT #4 was resolved in SELECT #2 -Note 1003 /* select#1 */ select sql_calc_found_rows `dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address` from `dbt3_s001`.`supplier` semi join (`dbt3_s001`.`part` join `dbt3_s001`.`partsupp`) join `dbt3_s001`.`nation` where `dbt3_s001`.`supplier`.`s_nationkey` = `dbt3_s001`.`nation`.`n_nationkey` and `dbt3_s001`.`nation`.`n_name` = 'UNITED STATES' and `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`partsupp`.`ps_suppkey` = `dbt3_s001`.`supplier`.`s_suppkey` and `dbt3_s001`.`partsupp`.`ps_availqty` > <`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((/* select#4 */ select 0.5 * sum(`dbt3_s001`.`lineitem`.`l_quantity`) from `dbt3_s001`.`lineitem` where `dbt3_s001`.`lineitem`.`l_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`lineitem`.`l_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`lineitem`.`l_shipDATE` >= (cast('1993-01-01' as date)) and `dbt3_s001`.`lineitem`.`l_shipDATE` < (cast('1993-01-01' as date) + interval '1' year))) and `dbt3_s001`.`part`.`p_name` like 'g%' order by `dbt3_s001`.`supplier`.`s_name` limit 10 -select sql_calc_found_rows -s_name, s_address -from supplier, nation -where s_suppkey in (select ps_suppkey from partsupp -where ps_partkey in (select p_partkey from part -where p_name like 'g%') -and ps_availqty > -(select 0.5 * sum(l_quantity) -from lineitem -where l_partkey = ps_partkey -and l_suppkey = ps_suppkey -and l_shipdate >= date('1993-01-01') -and l_shipdate < date('1993-01-01') + -interval '1' year )) -and s_nationkey = n_nationkey -and n_name = 'UNITED STATES' -order by s_name -limit 10; -s_name s_address -Supplier#000000010 Saygah3gYWMp72i PY -set histogram_type='DOUBLE_PREC_HB'; -set histogram_size=126; -ANALYZE TABLE part PERSISTENT FOR COLUMNS(p_name) INDEXES(); -Table Op Msg_type Msg_text -dbt3_s001.part analyze status Engine-independent statistics collected -dbt3_s001.part analyze status Table is already up to date -flush table part; -EXPLAIN EXTENDED select sql_calc_found_rows -s_name, s_address -from supplier, nation -where s_suppkey in (select ps_suppkey from partsupp -where ps_partkey in (select p_partkey from part -where p_name like 'g%') -and ps_availqty > -(select 0.5 * sum(l_quantity) -from lineitem -where l_partkey = ps_partkey -and l_suppkey = ps_suppkey -and l_shipdate >= date('1993-01-01') -and l_shipdate < date('1993-01-01') + -interval '1' year )) -and s_nationkey = n_nationkey -and n_name = 'UNITED STATES' -order by s_name -limit 10; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY nation ALL PRIMARY NULL NULL NULL 25 4.00 Using where; Using temporary; Using filesort -1 PRIMARY supplier ref PRIMARY,i_s_nationkey i_s_nationkey 5 dbt3_s001.nation.n_nationkey 1 100.00 -1 PRIMARY part ALL PRIMARY NULL NULL NULL 200 7.81 Using where -1 PRIMARY partsupp eq_ref PRIMARY,i_ps_partkey,i_ps_suppkey PRIMARY 8 dbt3_s001.part.p_partkey,dbt3_s001.supplier.s_suppkey 1 100.00 Using where; FirstMatch(supplier) -4 DEPENDENT SUBQUERY lineitem ref i_l_shipdate,i_l_suppkey_partkey,i_l_partkey,i_l_suppkey i_l_suppkey_partkey 10 dbt3_s001.partsupp.ps_partkey,dbt3_s001.partsupp.ps_suppkey 8 15.14 Using where -Warnings: -Note 1276 Field or reference 'dbt3_s001.partsupp.ps_partkey' of SELECT #4 was resolved in SELECT #2 -Note 1276 Field or reference 'dbt3_s001.partsupp.ps_suppkey' of SELECT #4 was resolved in SELECT #2 -Note 1003 /* select#1 */ select sql_calc_found_rows `dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address` from `dbt3_s001`.`supplier` semi join (`dbt3_s001`.`part` join `dbt3_s001`.`partsupp`) join `dbt3_s001`.`nation` where `dbt3_s001`.`supplier`.`s_nationkey` = `dbt3_s001`.`nation`.`n_nationkey` and `dbt3_s001`.`nation`.`n_name` = 'UNITED STATES' and `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`partsupp`.`ps_suppkey` = `dbt3_s001`.`supplier`.`s_suppkey` and `dbt3_s001`.`partsupp`.`ps_availqty` > <`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((/* select#4 */ select 0.5 * sum(`dbt3_s001`.`lineitem`.`l_quantity`) from `dbt3_s001`.`lineitem` where `dbt3_s001`.`lineitem`.`l_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`lineitem`.`l_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`lineitem`.`l_shipDATE` >= (cast('1993-01-01' as date)) and `dbt3_s001`.`lineitem`.`l_shipDATE` < (cast('1993-01-01' as date) + interval '1' year))) and `dbt3_s001`.`part`.`p_name` like 'g%' order by `dbt3_s001`.`supplier`.`s_name` limit 10 -select sql_calc_found_rows -s_name, s_address -from supplier, nation -where s_suppkey in (select ps_suppkey from partsupp -where ps_partkey in (select p_partkey from part -where p_name like 'g%') -and ps_availqty > -(select 0.5 * sum(l_quantity) -from lineitem -where l_partkey = ps_partkey -and l_suppkey = ps_suppkey -and l_shipdate >= date('1993-01-01') -and l_shipdate < date('1993-01-01') + -interval '1' year )) -and s_nationkey = n_nationkey -and n_name = 'UNITED STATES' -order by s_name -limit 10; -s_name s_address -Supplier#000000010 Saygah3gYWMp72i PY -set histogram_type='SINGLE_PREC_HB'; -set histogram_size=24; -ANALYZE TABLE nation PERSISTENT FOR COLUMNS(n_name) INDEXES(); -Table Op Msg_type Msg_text -dbt3_s001.nation analyze status Engine-independent statistics collected -dbt3_s001.nation analyze status Table is already up to date -flush table nation; -EXPLAIN EXTENDED select sql_calc_found_rows -s_name, s_address -from supplier, nation -where s_suppkey in (select ps_suppkey from partsupp -where ps_partkey in (select p_partkey from part -where p_name like 'g%') -and ps_availqty > -(select 0.5 * sum(l_quantity) -from lineitem -where l_partkey = ps_partkey -and l_suppkey = ps_suppkey -and l_shipdate >= date('1993-01-01') -and l_shipdate < date('1993-01-01') + -interval '1' year )) -and s_nationkey = n_nationkey -and n_name = 'UNITED STATES' -order by s_name -limit 10; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY nation ALL PRIMARY NULL NULL NULL 25 4.00 Using where; Using temporary; Using filesort -1 PRIMARY supplier ref PRIMARY,i_s_nationkey i_s_nationkey 5 dbt3_s001.nation.n_nationkey 1 100.00 -1 PRIMARY part ALL PRIMARY NULL NULL NULL 200 7.81 Using where -1 PRIMARY partsupp eq_ref PRIMARY,i_ps_partkey,i_ps_suppkey PRIMARY 8 dbt3_s001.part.p_partkey,dbt3_s001.supplier.s_suppkey 1 100.00 Using where; FirstMatch(supplier) -4 DEPENDENT SUBQUERY lineitem ref i_l_shipdate,i_l_suppkey_partkey,i_l_partkey,i_l_suppkey i_l_suppkey_partkey 10 dbt3_s001.partsupp.ps_partkey,dbt3_s001.partsupp.ps_suppkey 8 15.14 Using where -Warnings: -Note 1276 Field or reference 'dbt3_s001.partsupp.ps_partkey' of SELECT #4 was resolved in SELECT #2 -Note 1276 Field or reference 'dbt3_s001.partsupp.ps_suppkey' of SELECT #4 was resolved in SELECT #2 -Note 1003 /* select#1 */ select sql_calc_found_rows `dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address` from `dbt3_s001`.`supplier` semi join (`dbt3_s001`.`part` join `dbt3_s001`.`partsupp`) join `dbt3_s001`.`nation` where `dbt3_s001`.`supplier`.`s_nationkey` = `dbt3_s001`.`nation`.`n_nationkey` and `dbt3_s001`.`nation`.`n_name` = 'UNITED STATES' and `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`partsupp`.`ps_suppkey` = `dbt3_s001`.`supplier`.`s_suppkey` and `dbt3_s001`.`partsupp`.`ps_availqty` > <`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((/* select#4 */ select 0.5 * sum(`dbt3_s001`.`lineitem`.`l_quantity`) from `dbt3_s001`.`lineitem` where `dbt3_s001`.`lineitem`.`l_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`lineitem`.`l_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`lineitem`.`l_shipDATE` >= (cast('1993-01-01' as date)) and `dbt3_s001`.`lineitem`.`l_shipDATE` < (cast('1993-01-01' as date) + interval '1' year))) and `dbt3_s001`.`part`.`p_name` like 'g%' order by `dbt3_s001`.`supplier`.`s_name` limit 10 -select sql_calc_found_rows -s_name, s_address -from supplier, nation -where s_suppkey in (select ps_suppkey from partsupp -where ps_partkey in (select p_partkey from part -where p_name like 'g%') -and ps_availqty > -(select 0.5 * sum(l_quantity) -from lineitem -where l_partkey = ps_partkey -and l_suppkey = ps_suppkey -and l_shipdate >= date('1993-01-01') -and l_shipdate < date('1993-01-01') + -interval '1' year )) -and s_nationkey = n_nationkey -and n_name = 'UNITED STATES' -order by s_name -limit 10; -s_name s_address -Supplier#000000010 Saygah3gYWMp72i PY -DROP DATABASE dbt3_s001; -set histogram_type=@save_histogram_type; -set histogram_size=@save_histogram_size; -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -use test; -# -# Bug mdev-4348: using view with use_condition_selectivity > 1 -# -set @tmp_use_stat_tables=@@use_stat_tables; -set use_stat_tables='never'; -set optimizer_use_condition_selectivity=3; -CREATE TABLE t1 (a int, b int); -INSERT t1 VALUES (7,1), (0,7); -CREATE ALGORITHM=MERGE VIEW v1 AS SELECT * FROM t1; -CREATE TABLE t2 (c int, d int, index idx(d)); -INSERT INTO t2 VALUES -(0,4), (8,6), (1,3), (8,5), (9,3), (2,2), (6,2), -(1,9), (6,3), (2,8), (4,1), (0,7), (4,8), (4,5); -EXPLAIN EXTENDED -SELECT * FROM v1 INNER JOIN t2 ON ( a = c AND b = d ); -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 2 100.00 Using where -1 SIMPLE t2 ref idx idx 5 test.t1.b 2 100.00 Using where -Warnings: -Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t1` join `test`.`t2` where `test`.`t2`.`c` = `test`.`t1`.`a` and `test`.`t2`.`d` = `test`.`t1`.`b` -SELECT * FROM v1 INNER JOIN t2 ON ( a = c AND b = d ); -a b c d -0 7 0 7 -DROP VIEW v1; -DROP TABLE t1,t2; -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -set use_stat_tables=@tmp_use_stat_tables; -# -# Bug mdev-4349: impossible range for non-indexed column -# -set optimizer_use_condition_selectivity=3; -create table t1 (a int); -insert into t1 values -(3), (7), (2), (5), (7), (1), (2), (2); -set optimizer_use_condition_selectivity=1; -explain extended -select * from t1 where a < 1 and a > 7; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 8 100.00 Using where -Warnings: -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` < 1 and `test`.`t1`.`a` > 7 -select * from t1 where a < 1 and a > 7; -a -set optimizer_use_condition_selectivity=3; -explain extended -select * from t1 where a < 1 and a > 7; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables -Warnings: -Note 1003 select 7 AS `a` from `test`.`t1` where 0 -select * from t1 where a < 1 and a > 7; -a -drop table t1; -create table t1 (a int); -insert into t1 values (1); -create table t2 (b int); -insert into t2 values (2),(3); -explain extended -select * from t1 where a in ( select b from t2 ) AND ( a > 3 ); -id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables -Warnings: -Note 1003 select 1 AS `a` from (`test`.`t2`) where 0 -select * from t1 where a in ( select b from t2 ) AND ( a > 3 ); -a -drop table t1,t2; -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -# -# Bug mdev-4350: erroneous negative selectivity -# -create table t1 (a int); -insert into t1 values (1), (1); -insert into t1 select * from t1; -insert into t1 select * from t1; -insert into t1 select * from t1; -insert into t1 select * from t1; -insert into t1 select * from t1; -insert into t1 select * from t1; -insert into t1 select * from t1; -insert into t1 select * from t1; -insert into t1 select * from t1; -insert into t1 values (0); -select count(*) from t1; -count(*) -1025 -set use_stat_tables='preferably'; -set histogram_size=127; -set histogram_type='SINGLE_PREC_HB'; -analyze table t1; -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status OK -flush table t1; -set optimizer_use_condition_selectivity=4; -explain extended select * from t1 where a=0; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 1025 0.39 Using where -Warnings: -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 0 -drop table t1; -set histogram_size=@save_histogram_size; -set histogram_type=@save_histogram_type; -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -# -# Bug mdev-4367: 2-way join with an empty table -# when optimizer_use_condition_selectivity=3 -# -set optimizer_use_condition_selectivity=3; -CREATE TABLE t1 (a varchar(1)) ENGINE=MyISAM; -INSERT INTO t1 VALUES ('j'),('k'); -CREATE TABLE t2 (b varchar(1)) ENGINE=MyISAM; -INSERT INTO t2 VALUES ('x'),('y'); -CREATE TABLE t3 (c varchar(1), KEY(c)) ENGINE=MyISAM; -SELECT * FROM t1 STRAIGHT_JOIN (t2 JOIN t3 ON c = b AND b > 'z'); -a b c -DROP TABLE t1,t2,t3; -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -# -# Bug mdev-4366: impossible condition on an indexed column discovered after -# substitution of constant tables -# with optimizer_use_condition_selectivity=3 -# -CREATE TABLE t1 (pk int PRIMARY KEY, a int); -INSERT INTO t1 VALUES -(1,4), (2,6), (3,3), (4,5); -CREATE TABLE t2 (b int); -INSERT INTO t2 VALUES (1), (7); -set optimizer_use_condition_selectivity=1; -EXPLAIN EXTENDED -SELECT 1 FROM t1, t2 WHERE pk = 6 AND a = 2 AND b = 10; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables -Warnings: -Note 1003 select 1 AS `1` from `test`.`t1` join `test`.`t2` where 0 -SELECT 1 FROM t1, t2 WHERE pk = 6 AND a = 2 AND b = 10; -1 -set optimizer_use_condition_selectivity=3; -EXPLAIN EXTENDED -SELECT 1 FROM t1, t2 WHERE pk = 6 AND a = 2 AND b = 10; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables -Warnings: -Note 1003 select 1 AS `1` from `test`.`t1` join `test`.`t2` where 0 -SELECT 1 FROM t1, t2 WHERE pk = 6 AND a = 2 AND b = 10; -1 -DROP TABLE t1,t2; -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -# -# Bug mdev-4370: Histograms have bean created, but the query is run after -# FLUSH TABLES with optimizer_use_condition_selectivity=3 -# -set use_stat_tables=PREFERABLY; -set histogram_size=10; -set histogram_type='SINGLE_PREC_HB'; -CREATE TABLE t1 (a int); -INSERT INTO t1 VALUES (9), (1); -ANALYZE TABLE t1; -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status OK -FLUSH TABLES; -set optimizer_use_condition_selectivity=3; -EXPLAIN EXTENDED -SELECT * FROM t1 WHERE a > 3; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 2 75.00 Using where -Warnings: -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` > 3 -SELECT * FROM t1 WHERE a > 3; -a -9 -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -DROP TABLE t1; -set histogram_size=@save_histogram_size; -set histogram_type=@save_histogram_type; -set use_stat_tables=@save_use_stat_tables; -# -# Bug mdev-4371: Join with condition supported by index on an empty table -# with optimizer_use_condition_selectivity=3 -# -set use_stat_tables=PREFERABLY; -CREATE TABLE t1 (a int, b int, INDEX(a)); -CREATE TABLE t2 (c int); -INSERT INTO t2 VALUES (1),(2),(3),(4),(5),(6),(7),(8); -ANALYZE TABLE t1, t2; -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status Table is already up to date -test.t2 analyze status Engine-independent statistics collected -test.t2 analyze status OK -FLUSH TABLES; -set optimizer_use_condition_selectivity=3; -set @save_optimizer_switch=@@optimizer_switch; -set optimizer_switch='index_condition_pushdown=off'; -EXPLAIN EXTENDED -SELECT * FROM t1, t2 WHERE a > 9; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables -Warnings: -Note 1003 select NULL AS `a`,NULL AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t1` join `test`.`t2` where 0 -SELECT * FROM t1, t2 WHERE a > 9; -a b c -set optimizer_switch=@save_optimizer_switch; -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -DROP TABLE t1,t2; -set use_stat_tables=@save_use_stat_tables; -# -# Bug mdev-4373: condition on a short varchar column -# with optimizer_use_condition_selectivity=3 -# -set use_stat_tables=PREFERABLY; -CREATE TABLE t1 (a varchar(1)); -INSERT INTO t1 VALUES ('x'), ('y'); -ANALYZE TABLE t1; -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status OK -FLUSH TABLES; -set optimizer_use_condition_selectivity=3; -SELECT * FROM t1 WHERE a <= 'w'; -a -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -DROP TABLE t1; -set use_stat_tables=@save_use_stat_tables; -# -# Bug mdev-4372: exists subquery in WHERE -# with optimizer_use_condition_selectivity=3 -# -set use_stat_tables = PREFERABLY; -CREATE TABLE t1 (a int); -INSERT INTO t1 VALUES -(1),(7),(4),(7),(0),(2),(9),(4),(0),(9),(1),(3),(8),(8); -CREATE TABLE t2 (b int); -INSERT INTO t2 VALUES (4),(5),(2),(5),(1),(1),(2); -ANALYZE TABLE t1, t2; -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status OK -test.t2 analyze status Engine-independent statistics collected -test.t2 analyze status OK -FLUSH TABLES; -set optimizer_use_condition_selectivity=3; -EXPLAIN EXTENDED -SELECT * FROM t1, t2 WHERE EXISTS ( SELECT 1 FROM t1, t2 ) AND a != b OR a <= 4; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY t2 ALL NULL NULL NULL NULL 7 100.00 -1 PRIMARY t1 ALL NULL NULL NULL NULL 14 100.00 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY t2 ALL NULL NULL NULL NULL 7 100.00 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 14 100.00 Using join buffer (flat, BNL join) -Warnings: -Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t1` join `test`.`t2` where ((1,exists(/* select#2 */ select 1 from `test`.`t1` join `test`.`t2`))) and `test`.`t1`.`a` <> `test`.`t2`.`b` or `test`.`t1`.`a` <= 4 -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -DROP TABLE t1,t2; -set use_stat_tables=@save_use_stat_tables; -# -# Bug mdev-4363: selectivity of the condition a IS NULL OR IS NOT NULL -# with optimizer_use_condition_selectivity=3 -# -set use_stat_tables = PREFERABLY; -CREATE TABLE t1 (a int); -INSERT INTO t1 VALUES -(1),(7),(4),(7),(NULL),(2),(NULL),(4),(NULL),(NULL),(1),(3),(8),(8); -ANALYZE TABLE t1; -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status OK -FLUSH TABLE t1; -set optimizer_use_condition_selectivity=3; -EXPLAIN EXTENDED -SELECT * FROM t1 WHERE a IS NULL; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 14 28.57 Using where -Warnings: -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` is null -EXPLAIN EXTENDED -SELECT * FROM t1 WHERE a IS NOT NULL; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 14 71.43 Using where -Warnings: -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` is not null -EXPLAIN EXTENDED -SELECT * FROM t1 WHERE a IS NULL OR a IS NOT NULL; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 14 100.00 Using where -Warnings: -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` is null or `test`.`t1`.`a` is not null -EXPLAIN EXTENDED -SELECT * FROM t1 WHERE a IS NULL OR a < 5; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 14 69.39 Using where -Warnings: -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` is null or `test`.`t1`.`a` < 5 -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -DROP TABLE t1; -set use_stat_tables=@save_use_stat_tables; -# -# Bug mdev-4378: 2-way join with a materialized IN subquery in WHERE -# when optimizer_use_condition_selectivity=4 -# -set use_stat_tables=PREFERABLY; -set histogram_size=50; -set histogram_type=SINGLE_PREC_HB; -CREATE TABLE t1 (a INT) ENGINE=MyISAM; -INSERT INTO t1 VALUES (8),(9),(6); -CREATE TABLE t2 (b INT) ENGINE=MyISAM; -INSERT INTO t2 VALUES (8),(1),(8),(9),(24),(6),(1),(6),(2),(4); -CREATE TABLE t3 (ln VARCHAR(16)) ENGINE=MyISAM; -INSERT INTO t3 VALUES -('smith'),('black'),('white'),('jones'), -('brown'),('taylor'),('anderson'),('taylor'); -ANALYZE TABLE t1, t2, t3; -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status OK -test.t2 analyze status Engine-independent statistics collected -test.t2 analyze status OK -test.t3 analyze status Engine-independent statistics collected -test.t3 analyze status OK -FLUSH TABLES; -set optimizer_use_condition_selectivity=4; -SELECT * FROM t1, t2 WHERE 'garcia' IN ( SELECT MIN( ln ) FROM t3 WHERE ln = 'sun' ); -a b -set histogram_size=@save_histogram_size; -set histogram_type=@save_histogram_type; -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -DROP TABLE t1,t2,t3; -set use_stat_tables=@save_use_stat_tables; -# -# Bug mdev-4380: 2-way join with a materialized IN subquery in WHERE -# when optimizer_use_condition_selectivity=3 -# -set use_stat_tables=PREFERABLY; -CREATE TABLE t1 (a INT); -INSERT INTO t1 VALUES (5),(9); -CREATE TABLE t2 (b VARCHAR(8)); -INSERT INTO t2 VALUES ('red'),('blue'); -CREATE TABLE t3 (c VARCHAR(8), d VARCHAR(8)); -INSERT INTO t3 VALUES ('white','black'),('cyan','yellow'); -ANALYZE TABLE t1, t2, t3; -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status OK -test.t2 analyze status Engine-independent statistics collected -test.t2 analyze status OK -test.t3 analyze status Engine-independent statistics collected -test.t3 analyze status OK -FLUSH TABLES; -set optimizer_use_condition_selectivity=3; -SELECT * FROM t1, t2 WHERE ( 'orange', 'green' ) IN ( -SELECT MAX(c), MAX(d) FROM t3, t2 WHERE c >= d AND b = c -); -a b -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -DROP TABLE t1,t2,t3; -set use_stat_tables=@save_use_stat_tables; -# -# Bug mdev-4389: join with degenerated range condition in WHERE -# when optimizer_use_condition_selectivity=3 -# -set use_stat_tables=PREFERABLY; -CREATE TABLE t1 (f1 VARCHAR(1)); -INSERT t1 VALUES ('p'),('q'); -CREATE TABLE t2 (f2 VARCHAR(1)); -INSERT INTO t2 VALUES -('o'),('v'),('f'),('f'),('e'),('l'),('j'),('p'),('r'),('j'), -('j'),('u'),('i'),('r'),('x'),('a'),('x'),('s'); -ANALYZE TABLE t1, t2; -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status OK -test.t2 analyze status Engine-independent statistics collected -test.t2 analyze status OK -FLUSH TABLES; -SET optimizer_use_condition_selectivity=3; -SELECT * FROM t1, t2 AS t2a, t2 AS t2b WHERE f1 <= 'a' AND t2a.f2 = f1; -f1 f2 f2 -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -DROP TABLE t1,t2; -set use_stat_tables=@save_use_stat_tables; -# -# Bug mdev-4406: range condition for non-nullable column -# when optimizer_use_condition_selectivity=3 -# -create table t1 (a int not null); -insert into t1 values -(7), (6), (4), (9), (1), (5), (2), (1), (3), (8); -set use_stat_tables='preferably'; -analyze table t1; -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status OK -flush table t1; -set optimizer_use_condition_selectivity=3; -select count(*) from t1 where a between 5 and 7; -count(*) -3 -explain extended select * from t1 where a between 5 and 7; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 10 25.00 Using where -Warnings: -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` between 5 and 7 -alter table t1 change column a a int; -analyze table t1; -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status OK -flush table t1; -explain extended select * from t1 where a between 5 and 7; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 10 25.00 Using where -Warnings: -Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` between 5 and 7 -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -drop table t1; -set use_stat_tables=@save_use_stat_tables; -# -# Bug mdev-5200: impossible where with a semijoin subquery -# when optimizer_use_condition_selectivity=2 -# -set use_stat_tables = 'preferably'; -set optimizer_use_condition_selectivity = 2; -CREATE TABLE t1 (i1 int) ENGINE=MyISAM; -INSERT INTO t1 VALUES (0), (1); -CREATE TABLE t2 (pk2 int, i2 int, c2 char(1), PRIMARY KEY(pk2)) ENGINE=MyISAM; -INSERT INTO t2 VALUES (1,8,'m'), (2,9,'b'); -CREATE TABLE t3 (c3 char(1), INDEX(c3)) ENGINE=MyISAM; -INSERT INTO t3 VALUES ('v'), ('c'); -ANALYZE TABLE t1,t2,t3; -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status OK -test.t2 analyze status Engine-independent statistics collected -test.t2 analyze status OK -test.t3 analyze status Engine-independent statistics collected -test.t3 analyze status OK -SELECT * FROM t1 -WHERE 2 IN ( SELECT pk2 FROM t2 LEFT JOIN t3 ON (c3 = c2 ) WHERE i2 = 3 ); -i1 -EXPLAIN EXTENDED -SELECT * FROM t1 -WHERE 2 IN ( SELECT pk2 FROM t2 LEFT JOIN t3 ON (c3 = c2 ) WHERE i2 = 3 ); -id select_type table type possible_keys key key_len ref rows filtered Extra -1 PRIMARY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables -Warnings: -Note 1003 select `test`.`t1`.`i1` AS `i1` from `test`.`t1` semi join (`test`.`t2` left join `test`.`t3` on(`test`.`t3`.`c3` = 'b')) where 0 -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -DROP TABLE t1,t2,t3; -# -# Bug mdev-5415: query over an information schema table -# when optimizer_use_condition_selectivity=3 -# -set optimizer_use_condition_selectivity = 3; -SELECT * FROM INFORMATION_SCHEMA.TRIGGERS WHERE SQL_MODE != ''; -TRIGGER_CATALOG TRIGGER_SCHEMA TRIGGER_NAME EVENT_MANIPULATION EVENT_OBJECT_CATALOG EVENT_OBJECT_SCHEMA EVENT_OBJECT_TABLE ACTION_ORDER ACTION_CONDITION ACTION_STATEMENT ACTION_ORIENTATION ACTION_TIMING ACTION_REFERENCE_OLD_TABLE ACTION_REFERENCE_NEW_TABLE ACTION_REFERENCE_OLD_ROW ACTION_REFERENCE_NEW_ROW CREATED SQL_MODE DEFINER CHARACTER_SET_CLIENT COLLATION_CONNECTION DATABASE_COLLATION -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -# -# Bug mdev-5630: always true conjunctive condition -# when optimizer_use_condition_selectivity=3 -# -set use_stat_tables = 'preferably'; -set optimizer_use_condition_selectivity = 3; -CREATE TABLE t1 (a int) ENGINE=MyISAM; -INSERT INTO t1 VALUES (10); -CREATE TABLE t2 (id int, flag char(1), INDEX(id)) ENGINE=MyISAM; -INSERT INTO t2 VALUES (100,'0'),(101,'1'); -ANALYZE TABLE t1, t2; -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status OK -test.t2 analyze status Engine-independent statistics collected -test.t2 analyze status OK -SELECT * FROM t1, t2 WHERE id = a AND ( a = 16 OR flag AND a != 6 ); -a id flag -DROP TABLE t1,t2; -# -# Bug mdev-4429: join with range condition whose selectivity == 0 -# when optimizer_use_condition_selectivity=3 -# -CREATE TABLE language (lang_group INT, lang VARCHAR(16) PRIMARY KEY); -INSERT INTO language VALUES -(1,'Chinese'),(6,'English'),(1,'French'), -(1,'German'),(1,'Italian'),(0,'Japanese'); -CREATE TABLE country (code varchar(3) PRIMARY KEY, -country_group INT DEFAULT NULL); -INSERT INTO country VALUES ('USA',3),('FRA',5); -CREATE TABLE continent (cont_group INT, cont varchar(16) PRIMARY KEY); -INSERT INTO continent VALUES -(1,'N.America'),(1,'S.America'),(3,'Australia'), -(4,'Africa'),(5,'Antarctica'),(6,'Eurasia'); -SET use_stat_tables=PREFERABLY; -ANALYZE TABLE country, language, continent; -Table Op Msg_type Msg_text -test.country analyze status Engine-independent statistics collected -test.country analyze status OK -test.language analyze status Engine-independent statistics collected -test.language analyze status OK -test.continent analyze status Engine-independent statistics collected -test.continent analyze status OK -FLUSH TABLES; -SET optimizer_use_condition_selectivity=3; -SELECT * FROM language, country, continent -WHERE country_group = lang_group AND lang_group IS NULL; -lang_group lang code country_group cont_group cont -EXPLAIN EXTENDED -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 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 -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -drop table language, country, continent; -set use_stat_tables=@save_use_stat_tables; -# -# Bug mdev-5191: performance degradation due to a suboptimal chosen plan -# when optimizer_use_condition_selectivity=3 -# -set use_stat_tables = 'preferably'; -set @@RAND_SEED1=810763568, @@RAND_SEED2=600681772; -set TIMESTAMP=1394806993; -create table t1 (a int, b int) engine=myisam; -insert t1 values (rand()*1e5, rand()*1e5); -insert t1 select rand()*1e5, rand()*1e5 from t1; -insert t1 select rand()*1e5, rand()*1e5 from t1; -insert t1 select rand()*1e5, rand()*1e5 from t1; -insert t1 select rand()*1e5, rand()*1e5 from t1; -insert t1 select rand()*1e5, rand()*1e5 from t1; -insert t1 select rand()*1e5, rand()*1e5 from t1; -insert t1 select rand()*1e5, rand()*1e5 from t1; -insert t1 select rand()*1e5, rand()*1e5 from t1; -insert t1 select rand()*1e5, rand()*1e5 from t1; -insert t1 select rand()*1e5, rand()*1e5 from t1; -insert t1 select rand()*1e5, rand()*1e5 from t1; -insert t1 select rand()*1e5, rand()*1e5 from t1; -insert t1 select rand()*1e5, rand()*1e5 from t1; -insert t1 select rand()*1e5, rand()*1e5 from t1; -insert t1 select rand()*1e5, rand()*1e5 from t1; -insert t1 select rand()*1e5, rand()*1e5 from t1; -insert t1 select rand()*1e5, rand()*1e5 from t1; -insert t1 select rand()*1e5, rand()*1e5 from t1; -create table t2 (c int, d int, key(c), key(d)) engine=myisam; -insert t2 select floor(rand()*1e5/2)*2, floor(rand()*1e5/3)*3 from t1; -analyze table t1,t2; -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status OK -test.t2 analyze status Engine-independent statistics collected -test.t2 analyze status Table is already up to date -set optimizer_use_condition_selectivity=1; -explain extended -select * from t1, t2, t1 as t3 -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 t1 ALL NULL NULL NULL NULL 262144 100.00 Using where -1 SIMPLE t2 ref c,d c 5 test.t1.b 5 100.00 -1 SIMPLE t3 ALL NULL NULL NULL NULL 262144 100.00 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`.`t2`.`c` = `test`.`t1`.`b` and `test`.`t3`.`a` = `test`.`t2`.`d` and `test`.`t3`.`b` < 5 and `test`.`t1`.`a` < 2000 -select * from t1, t2, t1 as t3 -where t1.b=t2.c and t2.d=t3.a and t3.b<5 and t1.a < 2000; -a b c d a b -1063 89366 89366 28296 28296 3 -1495 89366 89366 28296 28296 3 -221 56120 56120 28296 28296 3 -961 24512 24512 85239 85239 4 -set optimizer_use_condition_selectivity=3; -explain extended -select * from t1, t2, t1 as t3 -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) -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 -where t1.b=t2.c and t2.d=t3.a and t3.b<5 and t1.a < 2000; -a b c d a b -1063 89366 89366 28296 28296 3 -1495 89366 89366 28296 28296 3 -221 56120 56120 28296 28296 3 -961 24512 24512 85239 85239 4 -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -drop table t1,t2; -set histogram_type=@save_histogram_type; -set histogram_size=@save_histogram_size; -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -# -# Bug mdev-5931: no where condition after constant table row substitution -# with optimizer_use_condition_selectivity=3 -# -CREATE TABLE t1 (a varchar(3), b varchar(3)) ENGINE=MyISAM; -INSERT INTO t1 VALUES ('foo', 'foo'); -CREATE TABLE t2 (c INT) ENGINE=MyISAM; -INSERT INTO t2 VALUES (1), (2); -set optimizer_use_condition_selectivity=3; -EXPLAIN EXTENDED -SELECT * FROM t1, t2 WHERE c >= 0 OR a = b ; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00 -1 SIMPLE t2 ALL NULL NULL NULL NULL 2 100.00 -Warnings: -Note 1003 select 'foo' AS `a`,'foo' AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t2` where 1 -SELECT * FROM t1, t2 WHERE c >= 0 OR a = b ; -a b c -foo foo 1 -foo foo 2 -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -DROP TABLE t1,t2; -# -# Bug mdev-6325: wrong selectivity of a column with ref access -# -create table t0(a int); -insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); -create table t1(a int); -insert into t1 select A.a + B.a* 10 + C.a * 100 from t0 A, t0 B, t0 C; -create table t2 (a int, b int, key(a)); -insert into t2 select A.a + 10*B.a, 12345 from t0 A, t0 B, t0 C; -set use_stat_tables='preferably'; -set histogram_size=100; -set optimizer_use_condition_selectivity=4; -analyze table t1 persistent for all; -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status OK -analyze table t2 persistent for all; -Table Op Msg_type Msg_text -test.t2 analyze status Engine-independent statistics collected -test.t2 analyze status Table is already up to date -explain extended -select * from t1 straight_join t2 where t1.a=t2.a and t1.a<10; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 1000 0.99 Using where -1 SIMPLE t2 ref a a 5 test.t1.a 10 100.00 -Warnings: -Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t1` straight_join `test`.`t2` where `test`.`t2`.`a` = `test`.`t1`.`a` and `test`.`t1`.`a` < 10 -explain extended -select * from t1 straight_join t2 where t1.a=t2.a and t2.a<10; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 1000 0.99 Using where -1 SIMPLE t2 ref a a 5 test.t1.a 10 100.00 -Warnings: -Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t1` straight_join `test`.`t2` where `test`.`t2`.`a` = `test`.`t1`.`a` and `test`.`t1`.`a` < 10 -set histogram_size=@save_histogram_size; -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -drop table t0,t1,t2; -# -# Bug mdev-6843: col IS NULL in where condition when col is always NULL -# -create table t0(a int); -insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); -create table t1(a int); -insert into t1 select A.a + B.a* 10 + C.a * 100 from t0 A, t0 B, t0 C; -create table t2 (a int, b int); -insert into t2 select NULL, a from t1; -set use_stat_tables='preferably'; -set histogram_size=100; -set optimizer_use_condition_selectivity=4; -analyze table t2 persistent for all; -Table Op Msg_type Msg_text -test.t2 analyze status Engine-independent statistics collected -test.t2 analyze status OK -explain extended -select * from t2 a straight_join t2 b where a.a is null; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE a ALL NULL NULL NULL NULL 1000 100.00 Using where -1 SIMPLE b ALL NULL NULL NULL NULL 1000 100.00 Using join buffer (flat, BNL join) -Warnings: -Note 1003 select `test`.`a`.`a` AS `a`,`test`.`a`.`b` AS `b`,`test`.`b`.`a` AS `a`,`test`.`b`.`b` AS `b` from `test`.`t2` `a` straight_join `test`.`t2` `b` where `test`.`a`.`a` is null -set histogram_size=@save_histogram_size; -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -drop table t0,t1,t2; -# -# Bug mdev-7316: a conjunct in WHERE with selectivity == 0 -# -CREATE TABLE t1 (a varchar(16), b int, PRIMARY KEY(a), KEY(b)); -INSERT INTO t1 VALUES -('USAChinese',10), ('USAEnglish',20), ('USAFrench',30); -CREATE TABLE t2 (i int); -INSERT INTO t2 VALUES -(1),(2),(3),(4),(5),(6),(7),(8),(9),(10),(1),(2),(3),(4); -ANALYZE TABLE t1, t2; -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status OK -test.t2 analyze status Engine-independent statistics collected -test.t2 analyze status OK -set use_stat_tables='preferably'; -set optimizer_use_condition_selectivity=3; -EXPLAIN EXTENDED -SELECT * FROM t1, t2 -WHERE a <> 'USARussian' AND b IS NULL; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ref PRIMARY,b b 5 const 1 100.00 Using index condition; Using where -1 SIMPLE t2 ALL NULL NULL NULL NULL 14 100.00 Using join buffer (flat, BNL join) -Warnings: -Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`i` AS `i` from `test`.`t1` join `test`.`t2` where `test`.`t1`.`a` <> 'USARussian' and `test`.`t1`.`b` is null -SELECT * FROM t1, t2 -WHERE a <> 'USARussian' AND b IS NULL; -a b i -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -DROP TABLE t1,t2; -set use_stat_tables=@save_use_stat_tables; -# -# Bug mdev-11096: range condition over column without statistical data -# -set use_stat_tables='preferably'; -set optimizer_use_condition_selectivity=3; -create table t1(col1 char(32)); -insert into t1 values ('a'),('b'),('c'),('d'), ('e'),('f'),('g'),('h'); -analyze table t1 persistent for columns () indexes (); -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status OK -explain extended -select * from t1 where col1 > 'b' and col1 < 'e'; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 8 100.00 Using where -Warnings: -Note 1003 select `test`.`t1`.`col1` AS `col1` from `test`.`t1` where `test`.`t1`.`col1` > 'b' and `test`.`t1`.`col1` < 'e' -select * from t1 where col1 > 'b' and col1 < 'e'; -col1 -c -d -drop table t1; -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -set use_stat_tables=@save_use_stat_tables; -# -# Bug mdev-9628: unindexed blob column without min-max statistics -# with optimizer_use_condition_selectivity=3 -# -set use_stat_tables='preferably'; -set optimizer_use_condition_selectivity=3; -create table t1(col1 char(32)); -insert into t1 values ('a'),('b'),('c'),('d'), ('e'),('f'),('g'),('h'); -analyze table t1; -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status OK -create table t2(col1 text); -insert into t2 values ('a'),('b'),('c'),('d'), ('e'),('f'),('g'),('h'); -analyze table t2; -Table Op Msg_type Msg_text -test.t2 analyze status Engine-independent statistics collected -test.t2 analyze Warning Engine-independent statistics are not collected for column 'col1' -test.t2 analyze status OK -select * from t1 where col1 > 'b' and col1 < 'd'; -col1 -c -explain extended -select * from t1 where col1 > 'b' and col1 < 'd'; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 8 28.57 Using where -Warnings: -Note 1003 select `test`.`t1`.`col1` AS `col1` from `test`.`t1` where `test`.`t1`.`col1` > 'b' and `test`.`t1`.`col1` < 'd' -select * from t2 where col1 > 'b' and col1 < 'd'; -col1 -c -explain extended -select * from t2 where col1 > 'b' and col1 < 'd'; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t2 ALL NULL NULL NULL NULL 8 100.00 Using where -Warnings: -Note 1003 select `test`.`t2`.`col1` AS `col1` from `test`.`t2` where `test`.`t2`.`col1` > 'b' and `test`.`t2`.`col1` < 'd' -select * from t2 where col1 < 'b' and col1 > 'd'; -col1 -explain extended -select * from t2 where col1 < 'b' and col1 > 'd'; -id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables -Warnings: -Note 1003 select 'd' AS `col1` from `test`.`t2` where 0 -drop table t1,t2; -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -set use_stat_tables=@save_use_stat_tables; -# -# Bug mdev-11364: IS NULL over not nullable datetime column -# in mergeable derived -# -set use_stat_tables='preferably'; -set optimizer_use_condition_selectivity=4; -set HISTOGRAM_SIZE = 255; -CREATE TABLE t1 (t TIME, d DATE NOT NULL); -INSERT INTO t1 VALUES ('10:00:00', '0000-00-00'),('11:00:00','0000-00-00'); -ANALYZE TABLE t1; -Table Op Msg_type Msg_text -test.t1 analyze status Engine-independent statistics collected -test.t1 analyze status OK -SELECT * FROM (SELECT t FROM t1 WHERE d IS NULL) sq; -t -10:00:00 -11:00:00 -DROP TABLE t1; -set histogram_size=@save_histogram_size; -set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; -set use_stat_tables=@save_use_stat_tables; -- cgit v1.2.1