diff options
Diffstat (limited to 'mysql-test/main/selectivity.result')
| -rw-r--r-- | mysql-test/main/selectivity.result | 203 |
1 files changed, 175 insertions, 28 deletions
diff --git a/mysql-test/main/selectivity.result b/mysql-test/main/selectivity.result index c086a967..f07720bb 100644 --- a/mysql-test/main/selectivity.result +++ b/mysql-test/main/selectivity.result @@ -52,7 +52,7 @@ part, supplier, partsupp, nation, region where p_partkey = ps_partkey and s_suppkey = ps_suppkey -and p_size = 9 +and (p_size = 9 or p_size =19999) and p_type like '%TIN' and s_nationkey = n_nationkey and n_regionkey = r_regionkey @@ -72,18 +72,18 @@ 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 i_ps_partkey 4 dbt3_s001.part.p_partkey 3 100.00 Using where +1 PRIMARY region ALL PRIMARY NULL NULL NULL 5 20.00 Using where; Using temporary; Using filesort +1 PRIMARY part ALL PRIMARY NULL NULL NULL 200 0.63 Using where; Using join buffer (flat, BNL join) +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 i_ps_partkey 4 dbt3_s001.part.p_partkey 3 100.00 +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 +2 DEPENDENT SUBQUERY region eq_ref PRIMARY PRIMARY 4 dbt3_s001.nation.n_regionkey 1 20.00 Using where Warnings: Note 1276 Field or reference 'dbt3_s001.part.p_partkey' of SELECT #2 was resolved in SELECT #1 -Note 1003 /* select#1 */ select `dbt3_s001`.`supplier`.`s_acctbal` AS `s_acctbal`,`dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`nation`.`n_name` AS `n_name`,`dbt3_s001`.`part`.`p_partkey` AS `p_partkey`,`dbt3_s001`.`part`.`p_mfgr` AS `p_mfgr`,`dbt3_s001`.`supplier`.`s_address` AS `s_address`,`dbt3_s001`.`supplier`.`s_phone` AS `s_phone`,`dbt3_s001`.`supplier`.`s_comment` AS `s_comment` from `dbt3_s001`.`part` join `dbt3_s001`.`supplier` join `dbt3_s001`.`partsupp` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`supplier`.`s_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`part`.`p_size` = 9 and `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`region`.`r_regionkey` = `dbt3_s001`.`nation`.`n_regionkey` and `dbt3_s001`.`region`.`r_name` = 'ASIA' and `dbt3_s001`.`part`.`p_type` like '%TIN' and `dbt3_s001`.`partsupp`.`ps_supplycost` = <expr_cache><`dbt3_s001`.`part`.`p_partkey`>((/* select#2 */ select min(`dbt3_s001`.`partsupp`.`ps_supplycost`) from `dbt3_s001`.`partsupp` join `dbt3_s001`.`supplier` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`supplier`.`s_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`nation`.`n_regionkey` = `dbt3_s001`.`region`.`r_regionkey` and `dbt3_s001`.`region`.`r_name` = 'ASIA' and `dbt3_s001`.`part`.`p_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey`)) order by `dbt3_s001`.`supplier`.`s_acctbal` desc,`dbt3_s001`.`nation`.`n_name`,`dbt3_s001`.`supplier`.`s_name`,`dbt3_s001`.`part`.`p_partkey` +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`.`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_size` = 9 or `dbt3_s001`.`part`.`p_size` = 19999) and `dbt3_s001`.`part`.`p_type` like '%TIN' and `dbt3_s001`.`partsupp`.`ps_supplycost` = <expr_cache><`dbt3_s001`.`part`.`p_partkey`>((/* select#2 */ select min(`dbt3_s001`.`partsupp`.`ps_supplycost`) from `dbt3_s001`.`partsupp` join `dbt3_s001`.`supplier` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`supplier`.`s_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`region`.`r_regionkey` = `dbt3_s001`.`nation`.`n_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 @@ -118,13 +118,13 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 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 i_ps_partkey 4 dbt3_s001.part.p_partkey 3 100.00 +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 +2 DEPENDENT SUBQUERY region eq_ref PRIMARY PRIMARY 4 dbt3_s001.nation.n_regionkey 1 20.00 Using where Warnings: Note 1276 Field or reference 'dbt3_s001.part.p_partkey' of SELECT #2 was resolved in SELECT #1 -Note 1003 /* select#1 */ select `dbt3_s001`.`supplier`.`s_acctbal` AS `s_acctbal`,`dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`nation`.`n_name` AS `n_name`,`dbt3_s001`.`part`.`p_partkey` AS `p_partkey`,`dbt3_s001`.`part`.`p_mfgr` AS `p_mfgr`,`dbt3_s001`.`supplier`.`s_address` AS `s_address`,`dbt3_s001`.`supplier`.`s_phone` AS `s_phone`,`dbt3_s001`.`supplier`.`s_comment` AS `s_comment` from `dbt3_s001`.`part` join `dbt3_s001`.`supplier` join `dbt3_s001`.`partsupp` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`partsupp`.`ps_suppkey` = `dbt3_s001`.`supplier`.`s_suppkey` and `dbt3_s001`.`part`.`p_size` = 9 and `dbt3_s001`.`supplier`.`s_nationkey` = `dbt3_s001`.`nation`.`n_nationkey` and `dbt3_s001`.`nation`.`n_regionkey` = `dbt3_s001`.`region`.`r_regionkey` and `dbt3_s001`.`region`.`r_name` = 'ASIA' and `dbt3_s001`.`part`.`p_type` like '%TIN' and `dbt3_s001`.`partsupp`.`ps_supplycost` = <expr_cache><`dbt3_s001`.`part`.`p_partkey`>((/* select#2 */ select min(`dbt3_s001`.`partsupp`.`ps_supplycost`) from `dbt3_s001`.`partsupp` join `dbt3_s001`.`supplier` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`supplier`.`s_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`nation`.`n_regionkey` = `dbt3_s001`.`region`.`r_regionkey` and `dbt3_s001`.`region`.`r_name` = 'ASIA' and `dbt3_s001`.`part`.`p_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey`)) order by `dbt3_s001`.`supplier`.`s_acctbal` desc,`dbt3_s001`.`nation`.`n_name`,`dbt3_s001`.`supplier`.`s_name`,`dbt3_s001`.`part`.`p_partkey` +Note 1003 /* select#1 */ select `dbt3_s001`.`supplier`.`s_acctbal` AS `s_acctbal`,`dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`nation`.`n_name` AS `n_name`,`dbt3_s001`.`part`.`p_partkey` AS `p_partkey`,`dbt3_s001`.`part`.`p_mfgr` AS `p_mfgr`,`dbt3_s001`.`supplier`.`s_address` AS `s_address`,`dbt3_s001`.`supplier`.`s_phone` AS `s_phone`,`dbt3_s001`.`supplier`.`s_comment` AS `s_comment` from `dbt3_s001`.`part` join `dbt3_s001`.`supplier` join `dbt3_s001`.`partsupp` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`partsupp`.`ps_suppkey` = `dbt3_s001`.`supplier`.`s_suppkey` and `dbt3_s001`.`part`.`p_size` = 9 and `dbt3_s001`.`supplier`.`s_nationkey` = `dbt3_s001`.`nation`.`n_nationkey` and `dbt3_s001`.`nation`.`n_regionkey` = `dbt3_s001`.`region`.`r_regionkey` and `dbt3_s001`.`region`.`r_name` = 'ASIA' and `dbt3_s001`.`part`.`p_type` like '%TIN' and `dbt3_s001`.`partsupp`.`ps_supplycost` = <expr_cache><`dbt3_s001`.`part`.`p_partkey`>((/* select#2 */ select min(`dbt3_s001`.`partsupp`.`ps_supplycost`) from `dbt3_s001`.`partsupp` join `dbt3_s001`.`supplier` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`supplier`.`s_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`region`.`r_regionkey` = `dbt3_s001`.`nation`.`n_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)) @@ -490,7 +490,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1 100.00 2 MATERIALIZED part ALL PRIMARY NULL NULL NULL 200 100.00 Using where 2 MATERIALIZED partsupp ref PRIMARY,i_ps_partkey,i_ps_suppkey i_ps_partkey 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 +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 @@ -541,8 +541,8 @@ 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 +1 PRIMARY part ALL PRIMARY NULL NULL NULL 200 4.17 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 11.99 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 @@ -597,7 +597,7 @@ 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) +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 7.11 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 @@ -652,7 +652,7 @@ 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) +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 6.40 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 @@ -707,7 +707,7 @@ 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) +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 6.40 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 @@ -755,7 +755,7 @@ 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 +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 ); @@ -1641,27 +1641,51 @@ drop function f1; # create table t1 (a int, b int, key (b), key (a)); insert into t1 -select (rand(1)*1000)/10, (rand(1001)*1000)/20 from seq_1_to_1000; -analyze table t1 persistent for all; +select (rand(1)*1000)/30, (rand(1001)*1000)/40 from seq_1_to_1000; +analyze table t1 ; Table Op Msg_type Msg_text test.t1 analyze status Engine-independent statistics collected test.t1 analyze status Table is already up to date +select count(*) from t1 where b=2; +count(*) +42 +select count(*) from t1 where a in (17,51,5); +count(*) +62 # Check what info the optimizer has about selectivities explain extended select * from t1 use index () where a in (17,51,5); id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 1000 2.90 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 1000 6.20 Using where Warnings: Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` USE INDEX () where `test`.`t1`.`a` in (17,51,5) explain extended select * from t1 use index () where b=2; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 1000 2.40 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 1000 4.20 Using where Warnings: Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` USE INDEX () where `test`.`t1`.`b` = 2 # Now, the equality is used for ref access, while the range condition # gives selectivity data explain extended select * from t1 where a in (17,51,5) and b=2; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ref b,a b 5 const 24 2.90 Using where +1 SIMPLE t1 ref|filter b,a b|a 5|5 const 42 (6%) 6.30 Using where; Using rowid filter +Warnings: +Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where `test`.`t1`.`b` = 2 and `test`.`t1`.`a` in (17,51,5) +truncate table t1; +insert into t1 +select (rand(1)*1000)/10, (rand(1001)*1000)/50 from seq_1_to_1000; +analyze table t1 ; +Table Op Msg_type Msg_text +test.t1 analyze status Engine-independent statistics collected +test.t1 analyze status Table is already up to date +select count(*) from t1 where b=2; +count(*) +59 +select count(*) from t1 where a in (17,51,5); +count(*) +29 +explain extended select * from t1 where a in (17,51,5) and b=2; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t1 range|filter b,a a|b 5|5 NULL 29 (6%) 5.80 Using index condition; Using where; Using rowid filter Warnings: Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where `test`.`t1`.`b` = 2 and `test`.`t1`.`a` in (17,51,5) drop table t1; @@ -1790,7 +1814,7 @@ set optimizer_use_condition_selectivity=2; explain extended select t1.b,t2.a,t3.a,t3.b from t1,t2,t3 where t1.c = t2.a AND t1.d = t3.a and t1.a = 50 and t1.b <= 100; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 range a a 10 NULL 9 9.00 Using index condition; Using where +1 SIMPLE t1 range a a 10 NULL 9 100.00 Using index condition; Using where 1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.c 1 100.00 Using index 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.d 1 100.00 Warnings: @@ -1808,6 +1832,18 @@ b a a b 7 7 8 8 8 8 9 9 9 9 10 10 +analyze table t1; +Table Op Msg_type Msg_text +test.t1 analyze status Engine-independent statistics collected +test.t1 analyze status OK +explain extended select t1.b,t2.a,t3.a,t3.b from t1,t2,t3 +where t1.c = t2.a AND t1.d = t3.a and t1.a = 50 and t1.b <= 100; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t1 range a a 10 NULL 9 100.00 Using index condition; Using where +1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.c 1 100.00 Using index +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.d 1 100.00 +Warnings: +Note 1003 select `test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b` from `test`.`t1` join `test`.`t2` join `test`.`t3` where `test`.`t2`.`a` = `test`.`t1`.`c` and `test`.`t3`.`a` = `test`.`t1`.`d` and `test`.`t1`.`a` = 50 and `test`.`t1`.`b` <= 100 set optimizer_use_condition_selectivity= @@optimizer_use_condition_selectivity; drop table t1,t2,t3; # @@ -1855,7 +1891,7 @@ WHERE A.a=t1.a AND t2.b < 20); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 100 Using where 3 DEPENDENT SUBQUERY A ref PRIMARY,a a 5 test.t1.a 1 -3 DEPENDENT SUBQUERY t2 ref|filter a,b a|b 5|5 test.A.id 1 (10%) Using where; Using rowid filter +3 DEPENDENT SUBQUERY t2 ref a,b a 5 test.A.id 1 Using where set statement optimizer_use_condition_selectivity=4 for explain SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 A INNER JOIN t2 ON t2.a = A.id @@ -1863,7 +1899,7 @@ WHERE A.a=t1.a AND t2.b < 20); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 100 Using where 3 DEPENDENT SUBQUERY A ref PRIMARY,a a 5 test.t1.a 1 -3 DEPENDENT SUBQUERY t2 ref|filter a,b a|b 5|5 test.A.id 1 (10%) Using where; Using rowid filter +3 DEPENDENT SUBQUERY t2 ref a,b a 5 test.A.id 1 Using where set @query="EXPLAIN SELECT * FROM t1 A, t1 B WHERE A.a = B.a and A.id = 65"; set statement optimizer_use_condition_selectivity=2 for explain SELECT * FROM t1 WHERE @@ -1872,7 +1908,7 @@ WHERE A.a=t1.a AND t2.b < 20); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 100 Using where 3 DEPENDENT SUBQUERY A ref PRIMARY,a a 5 test.t1.a 1 -3 DEPENDENT SUBQUERY t2 ref|filter a,b a|b 5|5 test.A.id 1 (10%) Using where; Using rowid filter +3 DEPENDENT SUBQUERY t2 ref a,b a 5 test.A.id 1 Using where set statement optimizer_use_condition_selectivity=4 for explain SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 A INNER JOIN t2 ON t2.a = A.id @@ -1880,7 +1916,7 @@ WHERE A.a=t1.a AND t2.b < 20); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 100 Using where 3 DEPENDENT SUBQUERY A ref PRIMARY,a a 5 test.t1.a 1 -3 DEPENDENT SUBQUERY t2 ref|filter a,b a|b 5|5 test.A.id 1 (10%) Using where; Using rowid filter +3 DEPENDENT SUBQUERY t2 ref a,b a 5 test.A.id 1 Using where explain SELECT * FROM t1 WHERE EXISTS (SELECT * FROM t1 A INNER JOIN t2 ON t2.a = A.id @@ -1888,7 +1924,7 @@ WHERE A.a=t1.a AND t2.b < 20); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 100 Using where 2 DEPENDENT SUBQUERY A ref PRIMARY,a a 5 test.t1.a 1 -2 DEPENDENT SUBQUERY t2 ref|filter a,b a|b 5|5 test.A.id 1 (10%) Using where; Using rowid filter +2 DEPENDENT SUBQUERY t2 ref a,b a 5 test.A.id 1 Using where set optimizer_switch= @save_optimizer_switch; drop table t1,t2; # @@ -1966,3 +2002,114 @@ set optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivi set histogram_size=@save_histogram_size; set use_stat_tables= @save_use_stat_tables; set @@global.histogram_size=@save_histogram_size; +# +# MDEV-20595 +# Assertion `0 < sel && sel <= 2.0' failed in table_cond_selectivity +# +create table t1 (id int, a int, PRIMARY KEY(id), key(a)); +insert into t1 select seq,seq from seq_1_to_100; +create table t2 (id int, a int, b int, PRIMARY KEY(id), key(a), key(b)); +insert into t2 select seq,seq,seq from seq_1_to_100; +set optimizer_use_condition_selectivity=2; +EXPLAIN SELECT * FROM t1 A, t1 B WHERE A.a = B.a and A.id = 65; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE A const PRIMARY,a PRIMARY 4 const 1 +1 SIMPLE B ref a a 5 const 1 +set optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity; +drop table t1,t2; +# +# MDEV-30360 Assertion `cond_selectivity <= 1.000000001' failed in get_range_limit_read_cost +# with LIMIT .. OFFSET +# +CREATE TABLE t1 (a INT, b VARCHAR(1), KEY(b), KEY(a)) engine=myisam; +INSERT INTO t1 VALUES +(3,'a'),(2,'g'),(5,'v'),(9,'n'),(6,'u'), +(7,'s'),(0,'z'),(3,'z'),(NULL,'m'),(6,'r'); +CREATE TABLE t2 (pk INT PRIMARY KEY); +INSERT INTO t2 VALUES (1),(2); +SELECT STRAIGHT_JOIN pk FROM t1 JOIN t2 ON a = pk WHERE b >= 'A' ORDER BY t2.pk LIMIT 8 OFFSET 1; +pk +DROP TABLE t1, t2; +# +# MDEV-30659 Server crash on EXPLAIN SELECT/SELECT on table with +# engine Aria for LooseScan Strategy +# +create table t1 (old_c1 integer, old_c2 integer, c1 integer, +c2 integer, c3 integer) engine=aria; +insert into t1(c1,c2,c3) +values (1,1,1), (1,2,2), (1,3,3), +(2,1,4), (2,2,5), (2,3,6), +(2,4,7), (2,5,8); +create index t1_c2 on t1 (c2,c1); +explain select * from t1 where t1.c2 in (select a.c2 from t1 a) and +c2 >= 3 order by c2; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY a range t1_c2 t1_c2 5 NULL 5 Using where; Using index; LooseScan +1 PRIMARY t1 ref t1_c2 t1_c2 5 test.a.c2 1 +drop table t1; +create table t1 (old_c1 integer, old_c2 integer, c1 integer, +c2 integer, c3 integer) engine=aria; +create trigger trg_t1 before update on t1 for each row +begin +set new.old_c1=old.c1; +set new.old_c2=old.c2; +end; +/ +insert into t1 (c1,c2,c3) values +(1,1,1), (1,2,2), (1,3,3), (2,1,4), (2,2,5), (2,3,6), (2,4,7), (2,5,8); +create index t1_c2 on t1 (c2,c1); +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 +create table t2 as select * from t1; +truncate table t1; +insert into t1 select * from t2; +explain select * from t1 where t1.c2 in (select a.c2 from t1 a) and c2 >= 3 order by c2; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY a range t1_c2 t1_c2 5 NULL 5 Using where; Using index; LooseScan +1 PRIMARY t1 ref t1_c2 t1_c2 5 test.a.c2 1 +drop trigger trg_t1; +drop table t1,t2; +create table t1 (old_c1 integer, old_c2 integer, c1 integer, +c2 integer, c3 integer) engine=aria; +insert into t1 (c1,c2,c3) values +(1,1,1), (1,2,2), (1,3,3), (2,1,4), (2,2,5), (2,3,6), (2,4,7), (2,5,8); +create index t1_c2 on t1 (c2,c1); +create table t2 as select * from t1; +truncate table t1; +insert into t1 select * from t2; +explain select * from t1 where t1.c2 in (select a.c2 from t1 a) and c2 >= 3 order by c2; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY a range t1_c2 t1_c2 5 NULL 5 Using where; Using index; LooseScan +1 PRIMARY t1 ref t1_c2 t1_c2 5 test.a.c2 2 +drop table t1,t2; +# +# MDEV-31864 Assertion `d >= 0' failed in COST_ADD with join_cache_level +# > 2 and partitions +# +SET join_cache_level= 3; +CREATE TABLE t1 (a INT); +INSERT INTO t1 VALUES (1),(2); +CREATE TABLE t2 (b INT, c INT); +INSERT INTO t2 VALUES (3,4),(5,6); +CREATE TABLE t3 (d INT, e INT) PARTITION BY RANGE COLUMNS (d) (p1 VALUES LESS THAN (1000), pn VALUES LESS THAN (MAXVALUE)); +ANALYZE TABLE t1, t2, t3 PERSISTENT FOR ALL; +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 +explain SELECT * FROM t1 LEFT JOIN (t2 JOIN t3 ON t2.b = t3.e) ON t2.c = 1; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 ALL NULL NULL NULL NULL 2 +1 SIMPLE t2 ALL NULL NULL NULL NULL 2 Using where +1 SIMPLE t3 ALL NULL NULL NULL NULL 0 Using where +SELECT * FROM t1 LEFT JOIN (t2 JOIN t3 ON t2.b = t3.e) ON t2.c = 1; +a b c d e +1 NULL NULL NULL NULL +2 NULL NULL NULL NULL +set join_cache_level= default; +DROP TABLE t1, t2, t3; |