diff --git a/mysql-test/r/archive_gis.result b/mysql-test/r/archive_gis.result index 71eeb063d59..901f8a9acc2 100644 --- a/mysql-test/r/archive_gis.result +++ b/mysql-test/r/archive_gis.result @@ -402,8 +402,8 @@ Equals(g1.g, g2.g) as e, Disjoint(g1.g, g2.g) as d, Touches(g1.g, g2.g) as t, Intersects(g1.g, g2.g) as i, Crosses(g1.g, g2.g) as r FROM gis_geometrycollection g1, gis_geometrycollection g2 ORDER BY first, second; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE g1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort; Using join cache -1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00 +1 SIMPLE g1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort +1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer Warnings: Note 1003 select `test`.`g1`.`fid` AS `first`,`test`.`g2`.`fid` AS `second`,within(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `w`,contains(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `c`,overlaps(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `o`,equals(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `e`,disjoint(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `d`,touches(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `t`,intersects(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `i`,crosses(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `r` from `test`.`gis_geometrycollection` `g1` join `test`.`gis_geometrycollection` `g2` order by `test`.`g1`.`fid`,`test`.`g2`.`fid` DROP TABLE gis_point, gis_line, gis_polygon, gis_multi_point, gis_multi_line, gis_multi_polygon, gis_geometrycollection, gis_geometry; diff --git a/mysql-test/r/compress.result b/mysql-test/r/compress.result index e46b56f4215..68206c0dc0e 100644 --- a/mysql-test/r/compress.result +++ b/mysql-test/r/compress.result @@ -1434,8 +1434,8 @@ companynr companynr 41 40 explain select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t4 index NULL PRIMARY 1 NULL 12 Using index; Using temporary; Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where +1 SIMPLE t4 index NULL PRIMARY 1 NULL 12 Using index; Using temporary +1 SIMPLE t2 ALL NULL NULL NULL NULL 1199 Using where; Using join buffer select t2.fld1,t2.companynr,fld3,period from t3,t2 where t2.fld1 = 38208 and t2.fld1=t3.t2nr and period = 1008 or t2.fld1 = 38008 and t2.fld1 =t3.t2nr and period = 1008; fld1 companynr fld3 period 038008 37 reporters 1008 diff --git a/mysql-test/r/ctype_utf8.result b/mysql-test/r/ctype_utf8.result index 3abba528164..8601e6890de 100644 --- a/mysql-test/r/ctype_utf8.result +++ b/mysql-test/r/ctype_utf8.result @@ -1454,8 +1454,8 @@ insert into t1 values ('123'), ('456'); explain select substr(Z.a,-1), Z.a from t1 as Y join t1 as Z on Y.a=Z.a order by 1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE Y ALL NULL NULL NULL NULL 2 Using temporary; Using filesort; Using join cache -1 SIMPLE Z ALL NULL NULL NULL NULL 2 Using where +1 SIMPLE Y ALL NULL NULL NULL NULL 2 Using temporary; Using filesort +1 SIMPLE Z ALL NULL NULL NULL NULL 2 Using where; Using join buffer select substr(Z.a,-1), Z.a from t1 as Y join t1 as Z on Y.a=Z.a order by 1; substr(Z.a,-1) a 3 123 diff --git a/mysql-test/r/derived.result b/mysql-test/r/derived.result index 750d542d14d..7da82ada121 100644 --- a/mysql-test/r/derived.result +++ b/mysql-test/r/derived.result @@ -57,8 +57,8 @@ a b a b 3 c 3 c explain select * from t1 as x1, (select * from t1) as x2; id select_type table type possible_keys key key_len ref rows Extra -1 PRIMARY x1 ALL NULL NULL NULL NULL 4 Using join cache -1 PRIMARY ALL NULL NULL NULL NULL 4 +1 PRIMARY x1 ALL NULL NULL NULL NULL 4 +1 PRIMARY ALL NULL NULL NULL NULL 4 Using join buffer 2 DERIVED t1 ALL NULL NULL NULL NULL 4 drop table if exists t2,t3; select * from (select 1) as a; @@ -188,14 +188,14 @@ pla_id test 105 3 explain SELECT STRAIGHT_JOIN d.pla_id, m2.mat_id FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum; id select_type table type possible_keys key key_len ref rows Extra -1 PRIMARY m2 ALL NULL NULL NULL NULL 9 Using join cache -1 PRIMARY ALL NULL NULL NULL NULL 6 Using where +1 PRIMARY m2 ALL NULL NULL NULL NULL 9 +1 PRIMARY ALL NULL NULL NULL NULL 6 Using where; Using join buffer 2 DERIVED mp ALL NULL NULL NULL NULL 9 Using temporary; Using filesort 2 DERIVED m1 eq_ref PRIMARY PRIMARY 3 test.mp.mat_id 1 explain SELECT STRAIGHT_JOIN d.pla_id, m2.test FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum; id select_type table type possible_keys key key_len ref rows Extra -1 PRIMARY m2 ALL NULL NULL NULL NULL 9 Using join cache -1 PRIMARY ALL NULL NULL NULL NULL 6 Using where +1 PRIMARY m2 ALL NULL NULL NULL NULL 9 +1 PRIMARY ALL NULL NULL NULL NULL 6 Using where; Using join buffer 2 DERIVED mp ALL NULL NULL NULL NULL 9 Using temporary; Using filesort 2 DERIVED m1 eq_ref PRIMARY PRIMARY 3 test.mp.mat_id 1 drop table t1,t2; @@ -245,8 +245,8 @@ a a 2 2 explain select * from ( select * from t1 union select * from t1) a,(select * from t1 union select * from t1) b; id select_type table type possible_keys key key_len ref rows Extra -1 PRIMARY ALL NULL NULL NULL NULL 2 Using join cache -1 PRIMARY ALL NULL NULL NULL NULL 2 +1 PRIMARY ALL NULL NULL NULL NULL 2 +1 PRIMARY ALL NULL NULL NULL NULL 2 Using join buffer 4 DERIVED t1 ALL NULL NULL NULL NULL 2 5 UNION t1 ALL NULL NULL NULL NULL 2 NULL UNION RESULT ALL NULL NULL NULL NULL NULL @@ -312,8 +312,8 @@ b 3.5000 explain SELECT s.name, AVG(s.val) AS median FROM (SELECT x.name, x.val FROM t1 x, t1 y WHERE x.name=y.name GROUP BY x.name, x.val HAVING SUM(y.val <= x.val) >= COUNT(*)/2 AND SUM(y.val >= x.val) >= COUNT(*)/2) AS s GROUP BY s.name; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY ALL NULL NULL NULL NULL 3 Using temporary; Using filesort -2 DERIVED x ALL NULL NULL NULL NULL 17 Using temporary; Using filesort; Using join cache -2 DERIVED y ALL NULL NULL NULL NULL 17 Using where +2 DERIVED x ALL NULL NULL NULL NULL 17 Using temporary; Using filesort +2 DERIVED y ALL NULL NULL NULL NULL 17 Using where; Using join buffer drop table t1; create table t2 (a int, b int, primary key (a)); insert into t2 values (1,7),(2,7); diff --git a/mysql-test/r/distinct.result b/mysql-test/r/distinct.result index 3419ce150eb..002dbc6ccb5 100644 --- a/mysql-test/r/distinct.result +++ b/mysql-test/r/distinct.result @@ -174,8 +174,8 @@ INSERT INTO t3 VALUES (1,'1'),(2,'2'),(1,'1'),(2,'2'); explain SELECT distinct t3.a FROM t3,t2,t1 WHERE t3.a=t1.b AND t1.a=t2.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 4 Using temporary -1 SIMPLE t3 ref a a 5 test.t1.b 2 Using where; Using index; Using join cache -1 SIMPLE t2 index a a 4 NULL 5 Using where; Using index; Distinct +1 SIMPLE t3 ref a a 5 test.t1.b 2 Using where; Using index +1 SIMPLE t2 index a a 4 NULL 5 Using where; Using index; Distinct; Using join buffer SELECT distinct t3.a FROM t3,t2,t1 WHERE t3.a=t1.b AND t1.a=t2.a; a 1 @@ -299,12 +299,12 @@ WHERE ((t1.id=j_lj_t2.id AND t2_lj.id IS NULL) OR (t1.id=t2.id AND t2.idx=2)) AND ((t1.id=j_lj_t3.id AND t3_lj.id IS NULL) OR (t1.id=t3.id AND t3.idx=2)); id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 index id id 4 NULL 2 Using index; Using temporary; Using join cache -1 SIMPLE t2 index id id 8 NULL 1 Using index; Distinct; Using join cache -1 SIMPLE t3 index id id 8 NULL 1 Using index; Distinct; Using join cache -1 SIMPLE j_lj_t2 index id id 4 NULL 2 Using where; Using index; Distinct -1 SIMPLE t2_lj ref id id 4 test.j_lj_t2.id 1 Using where; Using index; Distinct; Using join cache -1 SIMPLE j_lj_t3 index id id 4 NULL 2 Using where; Using index; Distinct +1 SIMPLE t1 index id id 4 NULL 2 Using index; Using temporary +1 SIMPLE t2 index id id 8 NULL 1 Using index; Distinct; Using join buffer +1 SIMPLE t3 index id id 8 NULL 1 Using index; Distinct; Using join buffer +1 SIMPLE j_lj_t2 index id id 4 NULL 2 Using where; Using index; Distinct; Using join buffer +1 SIMPLE t2_lj ref id id 4 test.j_lj_t2.id 1 Using where; Using index; Distinct +1 SIMPLE j_lj_t3 index id id 4 NULL 2 Using where; Using index; Distinct; Using join buffer 1 SIMPLE t3_lj ref id id 4 test.j_lj_t3.id 1 Using where; Using index; Distinct SELECT DISTINCT t1.id @@ -514,8 +514,8 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 EXPLAIN SELECT DISTINCT t1_1.a, t1_1.b FROM t1 t1_1, t1 t1_2; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1_1 ALL NULL NULL NULL NULL 3 Using temporary; Using join cache -1 SIMPLE t1_2 index NULL PRIMARY 4 NULL 3 Using index; Distinct +1 SIMPLE t1_1 ALL NULL NULL NULL NULL 3 Using temporary +1 SIMPLE t1_2 index NULL PRIMARY 4 NULL 3 Using index; Distinct; Using join buffer EXPLAIN SELECT DISTINCT t1_1.a, t1_1.b FROM t1 t1_1, t1 t1_2 WHERE t1_1.a = t1_2.a; id select_type table type possible_keys key key_len ref rows Extra diff --git a/mysql-test/r/func_group.result b/mysql-test/r/func_group.result index 1f640dec0a4..fce01ffd171 100644 --- a/mysql-test/r/func_group.result +++ b/mysql-test/r/func_group.result @@ -613,8 +613,8 @@ id select_type table type possible_keys key key_len ref rows Extra explain select max(t1.a3), min(t2.a2) from t1, t2 where t1.a2 = 2 and t1.a3 < 'MIN' and t2.a3 > 'CA'; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 range k1 k1 7 NULL 1 Using where; Using index; Using join cache -1 SIMPLE t2 range k1 k1 3 NULL 4 Using where; Using index +1 SIMPLE t1 range k1 k1 7 NULL 1 Using where; Using index +1 SIMPLE t2 range k1 k1 3 NULL 4 Using where; Using index; Using join buffer explain select min(a4 - 0.01) from t1; id select_type table type possible_keys key key_len ref rows Extra @@ -650,8 +650,8 @@ id select_type table type possible_keys key key_len ref rows Extra explain select concat(min(t1.a1),min(t2.a4)) from t1, t2 where t2.a4 <> 'AME'; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 range k2 k2 4 NULL 6 Using where; Using index; Using join cache -1 SIMPLE t1 index NULL PRIMARY 3 NULL 15 Using index +1 SIMPLE t2 range k2 k2 4 NULL 6 Using where; Using index +1 SIMPLE t1 index NULL PRIMARY 3 NULL 15 Using index; Using join buffer drop table t1, t2; create table t1 (a char(10)); insert into t1 values ('a'),('b'),('c'); diff --git a/mysql-test/r/func_group_innodb.result b/mysql-test/r/func_group_innodb.result index dba546a72de..908e85c1652 100644 --- a/mysql-test/r/func_group_innodb.result +++ b/mysql-test/r/func_group_innodb.result @@ -78,8 +78,8 @@ min(7) 7 explain select min(7) from t2i join t1i; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2i ALL NULL NULL NULL NULL 1 Using join cache -1 SIMPLE t1i ALL NULL NULL NULL NULL 1 +1 SIMPLE t2i ALL NULL NULL NULL NULL 1 +1 SIMPLE t1i ALL NULL NULL NULL NULL 1 Using join buffer select min(7) from t2i join t1i; min(7) NULL @@ -94,8 +94,8 @@ max(7) 7 explain select max(7) from t2i join t1i; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2i ALL NULL NULL NULL NULL 1 Using join cache -1 SIMPLE t1i ALL NULL NULL NULL NULL 1 +1 SIMPLE t2i ALL NULL NULL NULL NULL 1 +1 SIMPLE t1i ALL NULL NULL NULL NULL 1 Using join buffer select max(7) from t2i join t1i; max(7) NULL diff --git a/mysql-test/r/gis.result b/mysql-test/r/gis.result index 62486936e02..b50eb40182d 100644 --- a/mysql-test/r/gis.result +++ b/mysql-test/r/gis.result @@ -394,8 +394,8 @@ Equals(g1.g, g2.g) as e, Disjoint(g1.g, g2.g) as d, Touches(g1.g, g2.g) as t, Intersects(g1.g, g2.g) as i, Crosses(g1.g, g2.g) as r FROM gis_geometrycollection g1, gis_geometrycollection g2 ORDER BY first, second; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE g1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort; Using join cache -1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00 +1 SIMPLE g1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort +1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer Warnings: Note 1003 select `test`.`g1`.`fid` AS `first`,`test`.`g2`.`fid` AS `second`,within(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `w`,contains(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `c`,overlaps(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `o`,equals(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `e`,disjoint(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `d`,touches(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `t`,intersects(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `i`,crosses(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `r` from `test`.`gis_geometrycollection` `g1` join `test`.`gis_geometrycollection` `g2` order by `test`.`g1`.`fid`,`test`.`g2`.`fid` DROP TABLE gis_point, gis_line, gis_polygon, gis_multi_point, gis_multi_line, gis_multi_polygon, gis_geometrycollection, gis_geometry; diff --git a/mysql-test/r/greedy_optimizer.result b/mysql-test/r/greedy_optimizer.result index ebd2468c9af..9e8c66722e3 100644 --- a/mysql-test/r/greedy_optimizer.result +++ b/mysql-test/r/greedy_optimizer.result @@ -120,72 +120,72 @@ select @@optimizer_search_depth; 63 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 821.837037 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 821.837037 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -200,72 +200,72 @@ select @@optimizer_search_depth; 0 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 821.837037 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 821.837037 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 289.418727 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 289.418727 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value Last_query_cost 289.418727 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -276,24 +276,24 @@ select @@optimizer_search_depth; 1 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 821.837037 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -303,10 +303,10 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index; Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 @@ -315,10 +315,10 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index; Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 @@ -327,10 +327,10 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where; Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 @@ -339,10 +339,10 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where; Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 @@ -352,72 +352,72 @@ select @@optimizer_search_depth; 62 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 821.837037 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 821.837037 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 289.418727 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using join buffer 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 289.418727 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value Last_query_cost 289.418727 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.c21 1 Using where 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -432,72 +432,72 @@ select @@optimizer_search_depth; 0 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 821.837037 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 821.837037 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value @@ -508,24 +508,24 @@ select @@optimizer_search_depth; 1 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 821.837037 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value @@ -535,10 +535,10 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index; Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 @@ -547,10 +547,10 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index -1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index; Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 @@ -559,10 +559,10 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where; Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 @@ -571,10 +571,10 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where -1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where; Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 @@ -584,72 +584,72 @@ select @@optimizer_search_depth; 62 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 821.837037 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.c22 1 +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t4.c42 1 +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t6.c62 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 821.837037 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using index +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using index +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using index show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value Last_query_cost 794.837037 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where; Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where -1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where; Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where +1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 +1 SIMPLE t2 ALL NULL NULL NULL NULL 6 Using where; Using join buffer +1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t1.c12 1 Using where +1 SIMPLE t4 ALL NULL NULL NULL NULL 12 Using where; Using join buffer +1 SIMPLE t5 eq_ref PRIMARY PRIMARY 4 test.t1.c14 1 Using where +1 SIMPLE t6 ALL NULL NULL NULL NULL 18 Using where; Using join buffer 1 SIMPLE t7 eq_ref PRIMARY PRIMARY 4 test.t1.c16 1 Using where show status like 'Last_query_cost'; Variable_name Value diff --git a/mysql-test/r/group_by.result b/mysql-test/r/group_by.result index 807986c5f4e..e3cd90b9b3d 100644 --- a/mysql-test/r/group_by.result +++ b/mysql-test/r/group_by.result @@ -536,12 +536,12 @@ a b 1 1 explain select t1.a,t2.b from t1,t2 where t1.a=t2.a group by t1.a,t2.b; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using temporary; Using filesort; Using join cache -1 SIMPLE t2 ALL a NULL NULL NULL 4 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using temporary; Using filesort +1 SIMPLE t2 ALL a NULL NULL NULL 4 Using where; Using join buffer explain select t1.a,t2.b from t1,t2 where t1.a=t2.a group by t1.a,t2.b ORDER BY NULL; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using temporary; Using join cache -1 SIMPLE t2 ALL a NULL NULL NULL 4 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using temporary +1 SIMPLE t2 ALL a NULL NULL NULL 4 Using where; Using join buffer drop table t1,t2; create table t1 (a int, b int); insert into t1 values (1, 4),(10, 40),(1, 4),(10, 43),(1, 4),(10, 41),(1, 4),(10, 43),(1, 4); diff --git a/mysql-test/r/group_min_max.result b/mysql-test/r/group_min_max.result index bc07b933895..fcd6c92585e 100644 --- a/mysql-test/r/group_min_max.result +++ b/mysql-test/r/group_min_max.result @@ -2266,8 +2266,8 @@ EXPLAIN SELECT 1 FROM t1 AS t1_outer1 JOIN t1 AS t1_outer2 ON t1_outer1.a = (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) AND t1_outer1.b = t1_outer2.b; id select_type table type possible_keys key key_len ref rows Extra -1 PRIMARY t1_outer1 ref a a 5 const 1 Using where; Using index; Using join cache -1 PRIMARY t1_outer2 index NULL a 10 NULL 15 Using where; Using index +1 PRIMARY t1_outer1 ref a a 5 const 1 Using where; Using index +1 PRIMARY t1_outer2 index NULL a 10 NULL 15 Using where; Using index; Using join buffer 2 SUBQUERY t1 range NULL a 5 NULL 8 Using index for group-by EXPLAIN SELECT (SELECT (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) x FROM t1 AS t1_outer) x2 FROM t1 AS t1_outer2; diff --git a/mysql-test/r/index_merge_myisam.result b/mysql-test/r/index_merge_myisam.result index e8a37257782..f135d849f76 100644 --- a/mysql-test/r/index_merge_myisam.result +++ b/mysql-test/r/index_merge_myisam.result @@ -270,8 +270,8 @@ id select_type table type possible_keys key key_len ref rows Extra explain select * from t0,t1 where t0.key1 = 5 and (t1.key1 = t0.key1 or t1.key8 = t0.key1); id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t0 ref i1 i1 4 const 1 Using join cache -1 SIMPLE t1 index_merge i1,i8 i1,i8 4,4 NULL 2 Using union(i1,i8); Using where +1 SIMPLE t0 ref i1 i1 4 const 1 +1 SIMPLE t1 index_merge i1,i8 i1,i8 4,4 NULL 2 Using union(i1,i8); Using where; Using join buffer explain select * from t0,t1 where t0.key1 < 3 and (t1.key1 = t0.key1 or t1.key8 = t0.key1); id select_type table type possible_keys key key_len ref rows Extra @@ -347,8 +347,8 @@ from t0 as A force index(i1,i2), t0 as B force index (i1,i2) where (A.key1 < 500000 or A.key2 < 3) and (B.key1 < 500000 or B.key2 < 3); id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE A index_merge i1,i2 i1,i2 4,4 NULL 1013 Using sort_union(i1,i2); Using where; Using join cache -1 SIMPLE B index_merge i1,i2 i1,i2 4,4 NULL 1013 Using sort_union(i1,i2); Using where +1 SIMPLE A index_merge i1,i2 i1,i2 4,4 NULL 1013 Using sort_union(i1,i2); Using where +1 SIMPLE B index_merge i1,i2 i1,i2 4,4 NULL 1013 Using sort_union(i1,i2); Using where; Using join buffer select max(A.key1 + B.key1 + A.key2 + B.key2 + A.key3 + B.key3 + A.key4 + B.key4 + A.key5 + B.key5) from t0 as A force index(i1,i2), t0 as B force index (i1,i2) where (A.key1 < 500000 or A.key2 < 3) @@ -361,8 +361,8 @@ from t0 as A force index(i1,i2), t0 as B force index (i1,i2) where (A.key1 = 1 or A.key2 = 1) and (B.key1 = 1 or B.key2 = 1); id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE A index_merge i1,i2 i1,i2 4,4 NULL 1020 Using union(i1,i2); Using where; Using join cache -1 SIMPLE B index_merge i1,i2 i1,i2 4,4 NULL 1020 Using union(i1,i2); Using where +1 SIMPLE A index_merge i1,i2 i1,i2 4,4 NULL 1020 Using union(i1,i2); Using where +1 SIMPLE B index_merge i1,i2 i1,i2 4,4 NULL 1020 Using union(i1,i2); Using where; Using join buffer select max(A.key1 + B.key1 + A.key2 + B.key2 + A.key3 + B.key3 + A.key4 + B.key4 + A.key5 + B.key5) from t0 as A force index(i1,i2), t0 as B force index (i1,i2) where (A.key1 = 1 or A.key2 = 1) @@ -376,8 +376,8 @@ from t0 as A, t0 as B where (A.key1 = 1 and A.key2 = 1 and A.key3 = 1 and A.key4=1 and A.key5=1 and A.key6=1 and A.key7 = 1 or A.key8=1) and (B.key1 = 1 and B.key2 = 1 and B.key3 = 1 and B.key4=1 and B.key5=1 and B.key6=1 and B.key7 = 1 or B.key8=1); id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE A index_merge i1,i2,i3,i4,i5,i6,i7?,i8 i2,i3,i4,i5,i6,i7?,i8 X NULL # Using union(intersect(i2,i3,i4,i5,i6,i7?),i8); Using where; Using join cache -1 SIMPLE B index_merge i1,i2,i3,i4,i5,i6,i7?,i8 i2,i3,i4,i5,i6,i7?,i8 X NULL # Using union(intersect(i2,i3,i4,i5,i6,i7?),i8); Using where +1 SIMPLE A index_merge i1,i2,i3,i4,i5,i6,i7?,i8 i2,i3,i4,i5,i6,i7?,i8 X NULL # Using union(intersect(i2,i3,i4,i5,i6,i7?),i8); Using where +1 SIMPLE B index_merge i1,i2,i3,i4,i5,i6,i7?,i8 i2,i3,i4,i5,i6,i7?,i8 X NULL # Using union(intersect(i2,i3,i4,i5,i6,i7?),i8); Using where; Using join buffer select max(A.key1 + B.key1 + A.key2 + B.key2 + A.key3 + B.key3 + A.key4 + B.key4 + A.key5 + B.key5) from t0 as A, t0 as B where (A.key1 = 1 and A.key2 = 1 and A.key3 = 1 and A.key4=1 and A.key5=1 and A.key6=1 and A.key7 = 1 or A.key8=1) diff --git a/mysql-test/r/information_schema.result b/mysql-test/r/information_schema.result index 709246edcf1..745ec2e2248 100644 --- a/mysql-test/r/information_schema.result +++ b/mysql-test/r/information_schema.result @@ -289,8 +289,8 @@ explain select a.ROUTINE_NAME from information_schema.ROUTINES a, information_schema.SCHEMATA b where a.ROUTINE_SCHEMA = b.SCHEMA_NAME; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE # ALL NULL NULL NULL NULL 2 Using join cache -1 SIMPLE # ALL NULL NULL NULL NULL 2 Using where +1 SIMPLE # ALL NULL NULL NULL NULL 2 +1 SIMPLE # ALL NULL NULL NULL NULL 2 Using where; Using join buffer select a.ROUTINE_NAME, b.name from information_schema.ROUTINES a, mysql.proc b where a.ROUTINE_NAME = convert(b.name using utf8) order by 1; ROUTINE_NAME name diff --git a/mysql-test/r/innodb_gis.result b/mysql-test/r/innodb_gis.result index 945eca234bb..7f54a78087b 100644 --- a/mysql-test/r/innodb_gis.result +++ b/mysql-test/r/innodb_gis.result @@ -402,8 +402,8 @@ Equals(g1.g, g2.g) as e, Disjoint(g1.g, g2.g) as d, Touches(g1.g, g2.g) as t, Intersects(g1.g, g2.g) as i, Crosses(g1.g, g2.g) as r FROM gis_geometrycollection g1, gis_geometrycollection g2 ORDER BY first, second; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE g1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort; Using join cache -1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00 +1 SIMPLE g1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort +1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer Warnings: Note 1003 select `test`.`g1`.`fid` AS `first`,`test`.`g2`.`fid` AS `second`,within(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `w`,contains(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `c`,overlaps(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `o`,equals(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `e`,disjoint(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `d`,touches(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `t`,intersects(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `i`,crosses(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `r` from `test`.`gis_geometrycollection` `g1` join `test`.`gis_geometrycollection` `g2` order by `test`.`g1`.`fid`,`test`.`g2`.`fid` DROP TABLE gis_point, gis_line, gis_polygon, gis_multi_point, gis_multi_line, gis_multi_polygon, gis_geometrycollection, gis_geometry; diff --git a/mysql-test/r/innodb_mysql.result b/mysql-test/r/innodb_mysql.result index fb3bac44c61..f07f51dab18 100644 --- a/mysql-test/r/innodb_mysql.result +++ b/mysql-test/r/innodb_mysql.result @@ -184,8 +184,8 @@ min(7) 7 explain select min(7) from t2i join t1i; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2i ALL NULL NULL NULL NULL 1 Using join cache -1 SIMPLE t1i ALL NULL NULL NULL NULL 1 +1 SIMPLE t2i ALL NULL NULL NULL NULL 1 +1 SIMPLE t1i ALL NULL NULL NULL NULL 1 Using join buffer select min(7) from t2i join t1i; min(7) NULL @@ -200,8 +200,8 @@ max(7) 7 explain select max(7) from t2i join t1i; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2i ALL NULL NULL NULL NULL 1 Using join cache -1 SIMPLE t1i ALL NULL NULL NULL NULL 1 +1 SIMPLE t2i ALL NULL NULL NULL NULL 1 +1 SIMPLE t1i ALL NULL NULL NULL NULL 1 Using join buffer select max(7) from t2i join t1i; max(7) NULL diff --git a/mysql-test/r/join.result b/mysql-test/r/join.result index 86c206195b1..fcb141a3510 100644 --- a/mysql-test/r/join.result +++ b/mysql-test/r/join.result @@ -403,8 +403,8 @@ EXPLAIN SELECT STRAIGHT_JOIN t2.e FROM t1,t2 WHERE t2.d=1 AND t1.b=t2.e ORDER BY t1.b, t1.c; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 32 Using temporary; Using filesort; Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 16 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 32 Using temporary; Using filesort +1 SIMPLE t2 ALL NULL NULL NULL NULL 16 Using where; Using join buffer SELECT STRAIGHT_JOIN t2.e FROM t1,t2 WHERE t2.d=1 AND t1.b=t2.e ORDER BY t1.b, t1.c; e diff --git a/mysql-test/r/join_nested.result b/mysql-test/r/join_nested.result index d080b1a2a46..2dd9af8719e 100644 --- a/mysql-test/r/join_nested.result +++ b/mysql-test/r/join_nested.result @@ -228,8 +228,8 @@ LEFT JOIN t8 ON t7.b=t8.b AND t6.b < 10; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using join cache -1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 +1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 +1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using join buffer 1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Warnings: Note 1003 select `test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b` from `test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t7`.`b` = `test`.`t8`.`b`) and (`test`.`t6`.`b` < 10))) where 1 @@ -543,8 +543,8 @@ WHERE t0.a=1 AND t0.b=t1.b AND (t2.a >= 4 OR t2.c IS NULL); id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join cache -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where +1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 @@ -638,16 +638,16 @@ t0.b=t1.b AND (t8.b=t9.b OR t8.c IS NULL) AND (t9.a=1); id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join cache -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where +1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t5 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join cache -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where +1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer Warnings: Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`))) SELECT t9.a,t9.b @@ -835,8 +835,8 @@ t2 ON t3.a=1 AND t2.b=t4.b WHERE t1.a <= 2; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join cache -1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where +1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using join buffer 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Warnings: @@ -849,8 +849,8 @@ LEFT JOIN (t1,t2) ON t3.a=1 AND t3.b=t2.b AND t2.b=t4.b; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using join cache -1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 +1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 +1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using join buffer 1 SIMPLE t2 ref idx_b idx_b 5 test.t3.b 2 100.00 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Warnings: @@ -905,16 +905,16 @@ t0.b=t1.b AND (t8.b=t9.b OR t8.c IS NULL) AND (t9.a=1); id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join cache -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where +1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t5 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join cache -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where +1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer Warnings: Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`))) CREATE INDEX idx_b ON t4(b); @@ -955,16 +955,16 @@ t0.b=t1.b AND (t8.b=t9.b OR t8.c IS NULL) AND (t9.a=1); id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join cache -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where +1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t4 ref idx_b idx_b 5 test.t2.b 2 100.00 Using where 1 SIMPLE t5 ALL idx_b NULL NULL NULL 3 100.00 Using where 1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join cache -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where +1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer Warnings: Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`))) CREATE INDEX idx_b ON t8(b); @@ -1004,16 +1004,16 @@ t0.b=t1.b AND (t8.b=t9.b OR t8.c IS NULL) AND (t9.a=1); id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join cache -1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where +1 SIMPLE t0 ALL NULL NULL NULL NULL 3 100.00 Using where +1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer 1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t4 ref idx_b idx_b 5 test.t2.b 2 100.00 Using where 1 SIMPLE t5 ALL idx_b NULL NULL NULL 3 100.00 Using where 1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t8 ref idx_b idx_b 5 test.t5.b 2 100.00 Using where; Using join cache -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where +1 SIMPLE t8 ref idx_b idx_b 5 test.t5.b 2 100.00 Using where +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer Warnings: Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`))) CREATE INDEX idx_b ON t1(b); @@ -1062,8 +1062,8 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t5 ALL idx_b NULL NULL NULL 3 100.00 Using where 1 SIMPLE t7 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where -1 SIMPLE t8 ref idx_b idx_b 5 test.t5.b 2 100.00 Using where; Using join cache -1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where +1 SIMPLE t8 ref idx_b idx_b 5 test.t5.b 2 100.00 Using where +1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer Warnings: Note 1003 select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t4`.`b` = `test`.`t2`.`b`) and (`test`.`t3`.`a` = 1))) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(((`test`.`t8`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` < 10)))) on(((`test`.`t7`.`b` = `test`.`t5`.`b`) and (`test`.`t6`.`b` >= 2)))) on((((`test`.`t3`.`b` = 2) or isnull(`test`.`t3`.`c`)) and ((`test`.`t6`.`b` = 2) or isnull(`test`.`t6`.`c`)) and ((`test`.`t5`.`b` = `test`.`t0`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t6`.`c`) or isnull(`test`.`t8`.`c`)) and (`test`.`t1`.`a` <> 2))) join `test`.`t9` where ((`test`.`t9`.`a` = 1) and (`test`.`t1`.`b` = `test`.`t0`.`b`) and (`test`.`t0`.`a` = 1) and ((`test`.`t2`.`a` >= 4) or isnull(`test`.`t2`.`c`)) and ((`test`.`t3`.`a` < 5) or isnull(`test`.`t3`.`c`)) and ((`test`.`t4`.`b` = `test`.`t3`.`b`) or isnull(`test`.`t3`.`c`) or isnull(`test`.`t4`.`c`)) and ((`test`.`t5`.`a` >= 2) or isnull(`test`.`t5`.`c`)) and ((`test`.`t6`.`a` >= 4) or isnull(`test`.`t6`.`c`)) and ((`test`.`t7`.`a` <= 2) or isnull(`test`.`t7`.`c`)) and ((`test`.`t8`.`a` < 1) or isnull(`test`.`t8`.`c`)) and ((`test`.`t9`.`b` = `test`.`t8`.`b`) or isnull(`test`.`t8`.`c`))) SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b, diff --git a/mysql-test/r/key_diff.result b/mysql-test/r/key_diff.result index 35aad39edbf..9d26bee4557 100644 --- a/mysql-test/r/key_diff.result +++ b/mysql-test/r/key_diff.result @@ -35,8 +35,8 @@ D E a a a a a a explain select t1.*,t2.* from t1,t1 as t2 where t1.A=t2.B; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL a NULL NULL NULL 5 Using join cache -1 SIMPLE t2 ALL b NULL NULL NULL 5 Using where +1 SIMPLE t1 ALL a NULL NULL NULL 5 +1 SIMPLE t2 ALL b NULL NULL NULL 5 Using where; Using join buffer select t1.*,t2.* from t1,t1 as t2 where t1.A=t2.B order by binary t1.a,t2.a; a b a b A B a a diff --git a/mysql-test/r/myisam.result b/mysql-test/r/myisam.result index 06ed1430059..73661897ee1 100644 --- a/mysql-test/r/myisam.result +++ b/mysql-test/r/myisam.result @@ -345,12 +345,12 @@ t1 1 c_2 1 c A 5 NULL NULL YES BTREE t1 1 c_2 2 a A 5 NULL NULL BTREE explain select * from t1,t2 where t1.a=t2.a; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ALL a NULL NULL NULL 2 Using join cache -1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where +1 SIMPLE t2 ALL a NULL NULL NULL 2 +1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where; Using join buffer explain select * from t1,t2 force index(a) where t1.a=t2.a; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ALL a NULL NULL NULL 2 Using join cache -1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where +1 SIMPLE t2 ALL a NULL NULL NULL 2 +1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where; Using join buffer explain select * from t1 force index(a),t2 force index(a) where t1.a=t2.a; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ALL a NULL NULL NULL 2 @@ -361,8 +361,8 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref b b 5 test.t2.b 1 Using where explain select * from t1,t2 force index(c) where t1.a=t2.a; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ALL NULL NULL NULL NULL 2 Using join cache -1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where +1 SIMPLE t2 ALL NULL NULL NULL NULL 2 +1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where; Using join buffer explain select * from t1 where a=0 or a=2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where diff --git a/mysql-test/r/ndb_condition_pushdown.result b/mysql-test/r/ndb_condition_pushdown.result index df281230c9e..8d1dcc4ef18 100644 --- a/mysql-test/r/ndb_condition_pushdown.result +++ b/mysql-test/r/ndb_condition_pushdown.result @@ -1730,8 +1730,8 @@ pk1 attr1 attr2 attr3 attr4 explain select * from t2,t3 where t2.attr1 < 1 and t2.attr2 = t3.attr2 and t3.attr1 < 5 order by t2.pk1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 ALL NULL NULL NULL NULL # Using where with pushed condition; Using temporary; Using filesort; Using join cache -1 SIMPLE t3 ALL NULL NULL NULL NULL # Using where with pushed condition +1 SIMPLE t2 ALL NULL NULL NULL NULL # Using where with pushed condition; Using temporary; Using filesort +1 SIMPLE t3 ALL NULL NULL NULL NULL # Using where with pushed condition; Using join buffer select * from t2,t3 where t2.attr1 < 1 and t2.attr2 = t3.attr2 and t3.attr1 < 5 order by t2.pk1; pk1 attr1 attr2 attr3 pk1 attr1 attr2 attr3 attr4 0 0 0 a 0 0 0 0 a @@ -1746,8 +1746,8 @@ pk1 attr1 attr2 attr3 attr4 explain select * from t3,t4 where t4.attr1 > 1 and t4.attr2 = t3.attr2 and t4.attr3 < 5 order by t4.pk1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t4 range attr1 attr1 4 NULL # Using where with pushed condition; Using temporary; Using filesort; Using join cache -1 SIMPLE t3 ALL NULL NULL NULL NULL # Using where +1 SIMPLE t4 range attr1 attr1 4 NULL # Using where with pushed condition; Using temporary; Using filesort +1 SIMPLE t3 ALL NULL NULL NULL NULL # Using where; Using join buffer select * from t3,t4 where t4.attr1 > 1 and t4.attr2 = t3.attr2 and t4.attr3 < 5 order by t4.pk1; pk1 attr1 attr2 attr3 attr4 pk1 attr1 attr2 attr3 attr4 2 2 9223372036854775804 2 c 2 2 9223372036854775804 2 c diff --git a/mysql-test/r/ndb_gis.result b/mysql-test/r/ndb_gis.result index c01c1673e44..3af7b71d72d 100644 --- a/mysql-test/r/ndb_gis.result +++ b/mysql-test/r/ndb_gis.result @@ -402,8 +402,8 @@ Equals(g1.g, g2.g) as e, Disjoint(g1.g, g2.g) as d, Touches(g1.g, g2.g) as t, Intersects(g1.g, g2.g) as i, Crosses(g1.g, g2.g) as r FROM gis_geometrycollection g1, gis_geometrycollection g2 ORDER BY first, second; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE g1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort; Using join cache -1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00 +1 SIMPLE g1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort +1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer Warnings: Note 1003 select `test`.`g1`.`fid` AS `first`,`test`.`g2`.`fid` AS `second`,within(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `w`,contains(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `c`,overlaps(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `o`,equals(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `e`,disjoint(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `d`,touches(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `t`,intersects(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `i`,crosses(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `r` from `test`.`gis_geometrycollection` `g1` join `test`.`gis_geometrycollection` `g2` order by `test`.`g1`.`fid`,`test`.`g2`.`fid` DROP TABLE gis_point, gis_line, gis_polygon, gis_multi_point, gis_multi_line, gis_multi_polygon, gis_geometrycollection, gis_geometry; @@ -952,8 +952,8 @@ Equals(g1.g, g2.g) as e, Disjoint(g1.g, g2.g) as d, Touches(g1.g, g2.g) as t, Intersects(g1.g, g2.g) as i, Crosses(g1.g, g2.g) as r FROM gis_geometrycollection g1, gis_geometrycollection g2 ORDER BY first, second; id select_type table type possible_keys key key_len ref rows filtered Extra -1 SIMPLE g1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort; Using join cache -1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00 +1 SIMPLE g1 ALL NULL NULL NULL NULL 2 100.00 Using temporary; Using filesort +1 SIMPLE g2 ALL NULL NULL NULL NULL 2 100.00 Using join buffer Warnings: Note 1003 select `test`.`g1`.`fid` AS `first`,`test`.`g2`.`fid` AS `second`,within(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `w`,contains(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `c`,overlaps(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `o`,equals(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `e`,disjoint(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `d`,touches(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `t`,intersects(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `i`,crosses(`test`.`g1`.`g`,`test`.`g2`.`g`) AS `r` from `test`.`gis_geometrycollection` `g1` join `test`.`gis_geometrycollection` `g2` order by `test`.`g1`.`fid`,`test`.`g2`.`fid` DROP TABLE gis_point, gis_line, gis_polygon, gis_multi_point, gis_multi_line, gis_multi_polygon, gis_geometrycollection, gis_geometry; diff --git a/mysql-test/r/range.result b/mysql-test/r/range.result index c2cb7426a74..108264b3bf2 100644 --- a/mysql-test/r/range.result +++ b/mysql-test/r/range.result @@ -220,28 +220,28 @@ insert into t1 (x) values (1),(2),(3),(4),(5),(6),(7),(8),(9); update t1 set y=x; explain select * from t1, t1 t2 where t1.y = 8 and t2.x between 7 and t1.y+0; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 Using where; Using join cache -1 SIMPLE t2 range x x 5 NULL 2 Using where +1 SIMPLE t1 ref y y 5 const 1 Using where +1 SIMPLE t2 range x x 5 NULL 2 Using where; Using join buffer explain select * from t1, t1 t2 where t1.y = 8 and t2.x >= 7 and t2.x <= t1.y+0; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 Using where; Using join cache -1 SIMPLE t2 range x x 5 NULL 2 Using where +1 SIMPLE t1 ref y y 5 const 1 Using where +1 SIMPLE t2 range x x 5 NULL 2 Using where; Using join buffer explain select * from t1, t1 t2 where t1.y = 2 and t2.x between t1.y-1 and t1.y+1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 Using where; Using join cache -1 SIMPLE t2 range x x 5 NULL 3 Using where +1 SIMPLE t1 ref y y 5 const 1 Using where +1 SIMPLE t2 range x x 5 NULL 3 Using where; Using join buffer explain select * from t1, t1 t2 where t1.y = 2 and t2.x >= t1.y-1 and t2.x <= t1.y+1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 Using where; Using join cache -1 SIMPLE t2 range x x 5 NULL 3 Using where +1 SIMPLE t1 ref y y 5 const 1 Using where +1 SIMPLE t2 range x x 5 NULL 3 Using where; Using join buffer explain select * from t1, t1 t2 where t1.y = 2 and t2.x between 0 and t1.y; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 Using where; Using join cache -1 SIMPLE t2 range x x 5 NULL 2 Using where +1 SIMPLE t1 ref y y 5 const 1 Using where +1 SIMPLE t2 range x x 5 NULL 2 Using where; Using join buffer explain select * from t1, t1 t2 where t1.y = 2 and t2.x >= 0 and t2.x <= t1.y; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref y y 5 const 1 Using where; Using join cache -1 SIMPLE t2 range x x 5 NULL 2 Using where +1 SIMPLE t1 ref y y 5 const 1 Using where +1 SIMPLE t2 range x x 5 NULL 2 Using where; Using join buffer explain select count(*) from t1 where x in (1); id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ref x x 5 const 1 Using where; Using index @@ -255,13 +255,13 @@ CREATE TABLE t2 (keya int(11) NOT NULL default '0', KEY j1 (keya)); INSERT INTO t2 VALUES (0),(0),(1),(1),(2),(2); explain select * from t1, t2 where (t1.key1 (`test`.`t1`.`a`,(select 1 AS `Not_used` from `test`.`t2` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t2`.`a`) and (((`test`.`t1`.`a`) = `test`.`t2`.`a`) or isnull(`test`.`t2`.`a`))) having (`test`.`t2`.`a`))) AS `t1.a in (select t2.a from t2,t3 where t3.a=t2.a)` from `test`.`t1` drop table t1,t2,t3; @@ -1354,8 +1354,8 @@ a explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t2 index NULL a 5 NULL 4 100.00 Using where; Using index -2 DEPENDENT SUBQUERY t1 ref a a 5 func 1001 100.00 Using where; Using index; Using join cache -2 DEPENDENT SUBQUERY t3 index a a 5 NULL 3 100.00 Using where; Using index +2 DEPENDENT SUBQUERY t1 ref a a 5 func 1001 100.00 Using where; Using index +2 DEPENDENT SUBQUERY t3 index a a 5 NULL 3 100.00 Using where; Using index; Using join buffer Warnings: Note 1003 select `test`.`t2`.`a` AS `a` from `test`.`t2` where (`test`.`t2`.`a`,(select 1 AS `Not_used` from `test`.`t1` join `test`.`t3` where ((`test`.`t3`.`a` = `test`.`t1`.`b`) and ((`test`.`t2`.`a`) = `test`.`t1`.`a`)))) insert into t1 values (3,31); diff --git a/mysql-test/r/subselect3.result b/mysql-test/r/subselect3.result index 79ce5bbb3a7..2f3ea31a2a4 100644 --- a/mysql-test/r/subselect3.result +++ b/mysql-test/r/subselect3.result @@ -254,8 +254,8 @@ select a,b, oref, from t2; id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 -2 DEPENDENT SUBQUERY t1 ref_or_null a a 5 func 2 100.00 Using where; Full scan on NULL key; Using join cache -2 DEPENDENT SUBQUERY t4 ALL NULL NULL NULL NULL 100 100.00 Using where +2 DEPENDENT SUBQUERY t1 ref_or_null a a 5 func 2 100.00 Using where; Full scan on NULL key +2 DEPENDENT SUBQUERY t4 ALL NULL NULL NULL NULL 100 100.00 Using where; Using join buffer Warnings: Note 1276 Field or reference 'test.t2.oref' of SELECT #2 was resolved in SELECT #1 Note 1003 select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`oref` AS `oref`,((`test`.`t2`.`a`,`test`.`t2`.`b`),(select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` join `test`.`t4` where ((`test`.`t1`.`c` = `test`.`t2`.`oref`) and trigcond((((`test`.`t2`.`a`) = `test`.`t1`.`a`) or isnull(`test`.`t1`.`a`))) and trigcond((((`test`.`t2`.`b`) = `test`.`t1`.`b`) or isnull(`test`.`t1`.`b`)))) having (trigcond((`test`.`t1`.`a`)) and trigcond((`test`.`t1`.`b`))))) AS `Z` from `test`.`t2` diff --git a/mysql-test/r/union.result b/mysql-test/r/union.result index acf237bf125..6fc630ec33c 100644 --- a/mysql-test/r/union.result +++ b/mysql-test/r/union.result @@ -499,8 +499,8 @@ a b explain (select * from t1 where a=1 and b=10) union (select straight_join t1.a,t2.a from t1,t2 where t1.a=t2.a); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables -2 UNION t1 index PRIMARY PRIMARY 4 NULL 4 Using index; Using join cache -2 UNION t2 index PRIMARY PRIMARY 4 NULL 4 Using where; Using index +2 UNION t1 index PRIMARY PRIMARY 4 NULL 4 Using index +2 UNION t2 index PRIMARY PRIMARY 4 NULL 4 Using where; Using index; Using join buffer NULL UNION RESULT ALL NULL NULL NULL NULL NULL explain (select * from t1 where a=1) union (select * from t1 where b=1); id select_type table type possible_keys key key_len ref rows Extra diff --git a/mysql-test/r/view.result b/mysql-test/r/view.result index db488aa4876..21dd5330945 100644 --- a/mysql-test/r/view.result +++ b/mysql-test/r/view.result @@ -2317,8 +2317,8 @@ id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 ref a a 10 const,test.t1.b 2 Using where; Using index EXPLAIN SELECT * FROM v2 WHERE a=1; id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ref a a 5 const 1 Using where; Using index; Using join cache -1 SIMPLE t3 ALL NULL NULL NULL NULL 3 Using where +1 SIMPLE t1 ref a a 5 const 1 Using where; Using index +1 SIMPLE t3 ALL NULL NULL NULL NULL 3 Using where; Using join buffer DROP VIEW v1,v2; DROP TABLE t1,t2,t3; create table t1 (f1 int); diff --git a/sql/sql_select.cc b/sql/sql_select.cc index 6123b4fa303..bad661e0479 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -15564,8 +15564,8 @@ static void select_describe(JOIN *join, bool need_tmp_table, bool need_order, break; } } - if (tab->next_select == sub_select_cache) - extra.append(STRING_WITH_LEN("; Using join cache")); + if (i > 0 && tab[-1].next_select == sub_select_cache) + extra.append(STRING_WITH_LEN("; Using join buffer")); /* Skip initial "; "*/ const char *str= extra.ptr();