diff options
Diffstat (limited to 'mysql-test/r/selectivity_innodb.result')
| -rw-r--r-- | mysql-test/r/selectivity_innodb.result | 1024 |
1 files changed, 1024 insertions, 0 deletions
diff --git a/mysql-test/r/selectivity_innodb.result b/mysql-test/r/selectivity_innodb.result new file mode 100644 index 00000000000..eba0ed2f32a --- /dev/null +++ b/mysql-test/r/selectivity_innodb.result @@ -0,0 +1,1024 @@ +SET SESSION STORAGE_ENGINE='InnoDB'; +set @save_optimizer_switch_for_selectivity_test=@@optimizer_switch; +set optimizer_switch='extended_keys=on'; +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 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 isnull(`test`.`t1`.`a`) +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; +=== 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 index PRIMARY PRIMARY 4 NULL 10 100.00 +1 PRIMARY <derived3> ref key0 key0 5 dbt3_s001.supplier.s_suppkey 10 100.00 Using where +3 DERIVED lineitem range i_l_shipdate i_l_shipdate 4 NULL 228 100.00 Using where; Using temporary; Using filesort +2 SUBQUERY <derived4> ALL NULL NULL NULL NULL 228 100.00 +4 DERIVED lineitem range i_l_shipdate i_l_shipdate 4 NULL 228 100.00 Using where; Using temporary; Using filesort +Warnings: +Note 1003 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 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 index PRIMARY PRIMARY 4 NULL 10 100.00 +1 PRIMARY <derived3> ref key0 key0 5 dbt3_s001.supplier.s_suppkey 10 100.00 Using where +3 DERIVED lineitem range i_l_shipdate i_l_shipdate 4 NULL 228 0.14 Using where; Using temporary; Using filesort +2 SUBQUERY <derived4> ALL NULL NULL NULL NULL 228 100.00 +4 DERIVED lineitem range i_l_shipdate i_l_shipdate 4 NULL 228 0.14 Using where; Using temporary; Using filesort +Warnings: +Note 1003 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 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 i_ps_partkey 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 `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 (not((`dbt3_s001`.`part`.`p_type` like 'SMALL POLISHED%'))) and (`dbt3_s001`.`part`.`p_size` in (49,37,27,5,40,6,22,8)) and (not(<expr_cache><`dbt3_s001`.`partsupp`.`ps_suppkey`>(<in_optimizer>(`dbt3_s001`.`partsupp`.`ps_suppkey`,`dbt3_s001`.`partsupp`.`ps_suppkey` in ( <materialize> (select `dbt3_s001`.`supplier`.`s_suppkey` from `dbt3_s001`.`supplier` where (`dbt3_s001`.`supplier`.`s_comment` like '%Customer%Complaints%') ), <primary_index_lookup>(`dbt3_s001`.`partsupp`.`ps_suppkey` in <temporary table> on distinct_key where ((`dbt3_s001`.`partsupp`.`ps_suppkey` = `<subquery2>`.`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 i_ps_partkey 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 `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 (not((`dbt3_s001`.`part`.`p_type` like 'SMALL POLISHED%'))) and (`dbt3_s001`.`part`.`p_size` in (49,37,27,5,40,6,22,8)) and (not(<expr_cache><`dbt3_s001`.`partsupp`.`ps_suppkey`>(<in_optimizer>(`dbt3_s001`.`partsupp`.`ps_suppkey`,`dbt3_s001`.`partsupp`.`ps_suppkey` in ( <materialize> (select `dbt3_s001`.`supplier`.`s_suppkey` from `dbt3_s001`.`supplier` where (`dbt3_s001`.`supplier`.`s_comment` like '%Customer%Complaints%') ), <primary_index_lookup>(`dbt3_s001`.`partsupp`.`ps_suppkey` in <temporary table> on distinct_key where ((`dbt3_s001`.`partsupp`.`ps_suppkey` = `<subquery2>`.`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 i_ps_partkey 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 `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 (not((`dbt3_s001`.`part`.`p_type` like 'SMALL POLISHED%'))) and (`dbt3_s001`.`part`.`p_size` in (49,37,27,5,40,6,22,8)) and (not(<expr_cache><`dbt3_s001`.`partsupp`.`ps_suppkey`>(<in_optimizer>(`dbt3_s001`.`partsupp`.`ps_suppkey`,`dbt3_s001`.`partsupp`.`ps_suppkey` in ( <materialize> (select `dbt3_s001`.`supplier`.`s_suppkey` from `dbt3_s001`.`supplier` where (`dbt3_s001`.`supplier`.`s_comment` like '%Customer%Complaints%') ), <primary_index_lookup>(`dbt3_s001`.`partsupp`.`ps_suppkey` in <temporary table> on distinct_key where ((`dbt3_s001`.`partsupp`.`ps_suppkey` = `<subquery2>`.`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 <subquery2> 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 PRIMARY 8 NULL 6005 100.00 +Warnings: +Note 1003 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 <materialize> (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 (`<subquery2>`.`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 orders ALL PRIMARY,i_o_custkey NULL NULL NULL 1500 100.00 Using where; Using temporary; Using filesort +1 PRIMARY <subquery2> 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 PRIMARY 8 NULL 6005 100.00 +Warnings: +Note 1003 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 <materialize> (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 (`<subquery2>`.`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 +=== 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 SIMPLE 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 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 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 (not(exists(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 SIMPLE 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 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 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 (not(exists(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 <subquery2> 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 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` > <expr_cache><`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((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` >= <cache>(cast('1993-01-01' as date))) and (`dbt3_s001`.`lineitem`.`l_shipDATE` < <cache>((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 <subquery2> eq_ref distinct_key distinct_key 4 func 1 100.00 +2 MATERIALIZED part ALL PRIMARY NULL NULL NULL 200 4.17 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 14.37 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 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_availqty` > <expr_cache><`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((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` >= <cache>(cast('1993-01-01' as date))) and (`dbt3_s001`.`lineitem`.`l_shipDATE` < <cache>((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 OK +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 <subquery2> eq_ref distinct_key distinct_key 4 func 1 100.00 +2 MATERIALIZED part ALL PRIMARY NULL NULL NULL 200 7.03 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 14.37 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 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_availqty` > <expr_cache><`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((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` >= <cache>(cast('1993-01-01' as date))) and (`dbt3_s001`.`lineitem`.`l_shipDATE` < <cache>((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 OK +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 <subquery2> eq_ref distinct_key distinct_key 4 func 1 100.00 +2 MATERIALIZED part ALL PRIMARY NULL NULL NULL 200 7.81 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 14.37 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 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_availqty` > <expr_cache><`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((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` >= <cache>(cast('1993-01-01' as date))) and (`dbt3_s001`.`lineitem`.`l_shipDATE` < <cache>((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 OK +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 <subquery2> eq_ref distinct_key distinct_key 4 func 1 100.00 +2 MATERIALIZED part ALL PRIMARY NULL NULL NULL 200 7.81 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 14.37 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 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_availqty` > <expr_cache><`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((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` >= <cache>(cast('1993-01-01' as date))) and (`dbt3_s001`.`lineitem`.`l_shipDATE` < <cache>((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 1 100.00 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 `test`.`t1`.`a` 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 t1 ALL NULL NULL NULL NULL 1 0.00 Using where +1 PRIMARY t2 ALL NULL NULL NULL NULL 2 0 Using where; FirstMatch(t1); Using join buffer (flat, BNL join) +Warnings: +Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b` = `test`.`t1`.`a`) and (`test`.`t1`.`a` > 3)) +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 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 49.61 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 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 OK +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 t1 range a a 5 NULL 1 0.00 Using where +1 SIMPLE t2 ALL NULL NULL NULL NULL 8 100.00 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` from `test`.`t1` join `test`.`t2` where (`test`.`t1`.`a` > 9) +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 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 OK +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 `test`.`t1`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t1` join `test`.`t2` where ((exists(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 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 isnull(`test`.`t1`.`a`) +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 (isnull(`test`.`t1`.`a`) 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 (isnull(`test`.`t1`.`a`) 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 OK +test.t2 analyze status OK +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 OK +test.t2 analyze status OK +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 OK +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; +set use_stat_tables=@save_use_stat_tables; +set optimizer_switch=@save_optimizer_switch_for_selectivity_test; +SET SESSION STORAGE_ENGINE=DEFAULT; |