diff options
Diffstat (limited to 'mysql-test/main/innodb_ext_key.result')
| -rw-r--r-- | mysql-test/main/innodb_ext_key.result | 421 |
1 files changed, 0 insertions, 421 deletions
diff --git a/mysql-test/main/innodb_ext_key.result b/mysql-test/main/innodb_ext_key.result index dc8098d9bff..a6bf31d1f35 100644 --- a/mysql-test/main/innodb_ext_key.result +++ b/mysql-test/main/innodb_ext_key.result @@ -1,30 +1,6 @@ -DROP TABLE IF EXISTS t1,t2,t3,t4; -DROP DATABASE IF EXISTS dbt3_s001; SET SESSION STORAGE_ENGINE='InnoDB'; CREATE DATABASE dbt3_s001; use dbt3_s001; -set @save_ext_key_optimizer_switch=@@optimizer_switch; -set optimizer_switch='extended_keys=off'; -explain -select count(*) from lineitem where l_orderkey=130 and l_shipdate='1992-07-01'; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE lineitem ref PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity PRIMARY 4 const 5 Using where -flush status; -select count(*) from lineitem where l_orderkey=130 and l_shipdate='1992-07-01'; -count(*) -1 -show status like 'handler_read%'; -Variable_name Value -Handler_read_first 0 -Handler_read_key 1 -Handler_read_last 0 -Handler_read_next 5 -Handler_read_prev 0 -Handler_read_retry 0 -Handler_read_rnd 0 -Handler_read_rnd_deleted 0 -Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=on'; explain select count(*) from lineitem where l_orderkey=130 and l_shipdate='1992-07-01'; id select_type table type possible_keys key key_len ref rows Extra @@ -44,29 +20,6 @@ Handler_read_retry 0 Handler_read_rnd 0 Handler_read_rnd_deleted 0 Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=off'; -explain -select count(*) from lineitem -where l_orderkey=130 and l_linenumber=2 and l_shipdate='1992-07-01'; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE lineitem const PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity PRIMARY 8 const,const 1 -flush status; -select count(*) from lineitem -where l_orderkey=130 and l_linenumber=2 and l_shipdate='1992-07-01'; -count(*) -1 -show status like 'handler_read%'; -Variable_name Value -Handler_read_first 0 -Handler_read_key 1 -Handler_read_last 0 -Handler_read_next 0 -Handler_read_prev 0 -Handler_read_retry 0 -Handler_read_rnd 0 -Handler_read_rnd_deleted 0 -Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=on'; explain select count(*) from lineitem where l_orderkey=130 and l_linenumber=2 and l_shipdate='1992-07-01'; @@ -88,29 +41,6 @@ Handler_read_retry 0 Handler_read_rnd 0 Handler_read_rnd_deleted 0 Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=off'; -explain -select count(*) from lineitem -where l_shipdate='1992-07-01' and l_orderkey between 1 and 1000; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE lineitem ref PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity i_l_shipdate 4 const 6 Using where; Using index -flush status; -select count(*) from lineitem -where l_shipdate='1992-07-01' and l_orderkey between 1 and 1000; -count(*) -1 -show status like 'handler_read%'; -Variable_name Value -Handler_read_first 0 -Handler_read_key 1 -Handler_read_last 0 -Handler_read_next 6 -Handler_read_prev 0 -Handler_read_retry 0 -Handler_read_rnd 0 -Handler_read_rnd_deleted 0 -Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=on'; explain select count(*) from lineitem where l_shipdate='1992-07-01' and l_orderkey between 1 and 1000; @@ -132,31 +62,6 @@ Handler_read_retry 0 Handler_read_rnd 0 Handler_read_rnd_deleted 0 Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=off'; -explain -select l_orderkey, l_linenumber from lineitem -where l_shipdate='1992-07-01' and l_orderkey between 1001 and 2000; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE lineitem ref PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity i_l_shipdate 4 const 6 Using where; Using index -flush status; -select l_orderkey, l_linenumber from lineitem -where l_shipdate='1992-07-01' and l_orderkey between 1001 and 2000; -l_orderkey l_linenumber -1088 3 -1217 1 -1221 3 -show status like 'handler_read%'; -Variable_name Value -Handler_read_first 0 -Handler_read_key 1 -Handler_read_last 0 -Handler_read_next 6 -Handler_read_prev 0 -Handler_read_retry 0 -Handler_read_rnd 0 -Handler_read_rnd_deleted 0 -Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=on'; explain select l_orderkey, l_linenumber from lineitem where l_shipdate='1992-07-01' and l_orderkey between 1001 and 2000; @@ -180,27 +85,6 @@ Handler_read_retry 0 Handler_read_rnd 0 Handler_read_rnd_deleted 0 Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=off'; -explain -select min(l_orderkey) from lineitem where l_shipdate='1992-07-01'; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE lineitem ref i_l_shipdate i_l_shipdate 4 const 6 Using index -flush status; -select min(l_orderkey) from lineitem where l_shipdate='1992-07-01'; -min(l_orderkey) -130 -show status like 'handler_read%'; -Variable_name Value -Handler_read_first 0 -Handler_read_key 1 -Handler_read_last 0 -Handler_read_next 6 -Handler_read_prev 0 -Handler_read_retry 0 -Handler_read_rnd 0 -Handler_read_rnd_deleted 0 -Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=on'; explain select min(l_orderkey) from lineitem where l_shipdate='1992-07-01'; id select_type table type possible_keys key key_len ref rows Extra @@ -220,29 +104,6 @@ Handler_read_retry 0 Handler_read_rnd 0 Handler_read_rnd_deleted 0 Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=off'; -explain -select min(l_orderkey) from lineitem -where l_shipdate='1992-07-01' and l_orderkey between 1001 and 2000; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE lineitem ref PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity i_l_shipdate 4 const 6 Using where; Using index -flush status; -select min(l_orderkey) from lineitem -where l_shipdate='1992-07-01' and l_orderkey between 1001 and 2000; -min(l_orderkey) -1088 -show status like 'handler_read%'; -Variable_name Value -Handler_read_first 0 -Handler_read_key 1 -Handler_read_last 0 -Handler_read_next 6 -Handler_read_prev 0 -Handler_read_retry 0 -Handler_read_rnd 0 -Handler_read_rnd_deleted 0 -Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=on'; explain select min(l_orderkey) from lineitem where l_shipdate='1992-07-01' and l_orderkey between 1001 and 2000; @@ -264,29 +125,6 @@ Handler_read_retry 0 Handler_read_rnd 0 Handler_read_rnd_deleted 0 Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=off'; -explain -select max(l_linenumber) from lineitem -where l_shipdate='1992-07-01' and l_orderkey=130; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE lineitem ref PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity PRIMARY 4 const 5 Using where -flush status; -select max(l_linenumber) from lineitem -where l_shipdate='1992-07-01' and l_orderkey=130; -max(l_linenumber) -2 -show status like 'handler_read%'; -Variable_name Value -Handler_read_first 0 -Handler_read_key 1 -Handler_read_last 0 -Handler_read_next 5 -Handler_read_prev 0 -Handler_read_retry 0 -Handler_read_rnd 0 -Handler_read_rnd_deleted 0 -Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=on'; explain select max(l_linenumber) from lineitem where l_shipdate='1992-07-01' and l_orderkey=130; @@ -308,34 +146,6 @@ Handler_read_retry 0 Handler_read_rnd 0 Handler_read_rnd_deleted 0 Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=off'; -explain -select l_orderkey, l_linenumber -from lineitem use index (i_l_shipdate, i_l_receiptdate) -where l_shipdate='1992-07-01' and l_orderkey=130 -or l_receiptdate='1992-07-01' and l_orderkey=5603; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE lineitem index_merge i_l_shipdate,i_l_receiptdate i_l_shipdate,i_l_receiptdate 4,4 NULL 9 Using union(i_l_shipdate,i_l_receiptdate); Using where -flush status; -select l_orderkey, l_linenumber -from lineitem use index (i_l_shipdate, i_l_receiptdate) -where l_shipdate='1992-07-01' and l_orderkey=130 -or l_receiptdate='1992-07-01' and l_orderkey=5603; -l_orderkey l_linenumber -130 2 -5603 2 -show status like 'handler_read%'; -Variable_name Value -Handler_read_first 0 -Handler_read_key 2 -Handler_read_last 0 -Handler_read_next 9 -Handler_read_prev 0 -Handler_read_retry 0 -Handler_read_rnd 9 -Handler_read_rnd_deleted 0 -Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=on'; explain select l_orderkey, l_linenumber from lineitem use index (i_l_shipdate, i_l_receiptdate) @@ -362,35 +172,6 @@ Handler_read_retry 0 Handler_read_rnd 2 Handler_read_rnd_deleted 0 Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=off'; -explain -select l_orderkey, l_linenumber -from lineitem use index (i_l_shipdate, i_l_receiptdate) -where l_shipdate='1992-07-01' and l_orderkey between 1 and 1000 -or l_receiptdate='1992-07-01' and l_orderkey between 5001 and 6000; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE lineitem index_merge i_l_shipdate,i_l_receiptdate i_l_shipdate,i_l_receiptdate 4,4 NULL 9 Using union(i_l_shipdate,i_l_receiptdate); Using where -flush status; -select l_orderkey, l_linenumber -from lineitem use index (i_l_shipdate, i_l_receiptdate) -where l_shipdate='1992-07-01' and l_orderkey between 1 and 1000 -or l_receiptdate='1992-07-01' and l_orderkey between 5001 and 6000; -l_orderkey l_linenumber -130 2 -5603 2 -5959 3 -show status like 'handler_read%'; -Variable_name Value -Handler_read_first 0 -Handler_read_key 2 -Handler_read_last 0 -Handler_read_next 9 -Handler_read_prev 0 -Handler_read_retry 0 -Handler_read_rnd 9 -Handler_read_rnd_deleted 0 -Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=on'; explain select l_orderkey, l_linenumber from lineitem use index (i_l_shipdate, i_l_receiptdate) @@ -418,33 +199,6 @@ Handler_read_retry 0 Handler_read_rnd 3 Handler_read_rnd_deleted 0 Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=off'; -explain -select l_orderkey, l_linenumber from lineitem -where l_shipdate='1992-07-01' and l_orderkey between 1 and 1000 -or l_receiptdate='1992-07-01' and l_orderkey between 5001 and 6000; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE lineitem index_merge PRIMARY,i_l_shipdate,i_l_receiptdate,i_l_orderkey,i_l_orderkey_quantity i_l_shipdate,PRIMARY,i_l_receiptdate,PRIMARY 4,4,4,4 NULL 2 Using union(intersect(i_l_shipdate,PRIMARY),intersect(i_l_receiptdate,PRIMARY)); Using where -flush status; -select l_orderkey, l_linenumber from lineitem -where l_shipdate='1992-07-01' and l_orderkey between 1 and 1000 -or l_receiptdate='1992-07-01' and l_orderkey between 5001 and 6000; -l_orderkey l_linenumber -130 2 -5603 2 -5959 3 -show status like 'handler_read%'; -Variable_name Value -Handler_read_first 0 -Handler_read_key 2 -Handler_read_last 0 -Handler_read_next 9 -Handler_read_prev 0 -Handler_read_retry 0 -Handler_read_rnd 3 -Handler_read_rnd_deleted 0 -Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=on'; explain select l_orderkey, l_linenumber from lineitem where l_shipdate='1992-07-01' and l_orderkey between 1 and 1000 @@ -470,38 +224,6 @@ Handler_read_retry 0 Handler_read_rnd 3 Handler_read_rnd_deleted 0 Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=off'; -explain -select max(l_orderkey) from lineitem -where l_partkey between 1 and 10 group by l_partkey; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE lineitem range i_l_suppkey_partkey,i_l_partkey i_l_partkey 5 NULL # Using where; Using index -flush status; -select max(l_orderkey) from lineitem -where l_partkey between 1 and 10 group by l_partkey; -max(l_orderkey) -5984 -5957 -5892 -5856 -5959 -5957 -5794 -5894 -5859 -5632 -show status like 'handler_read%'; -Variable_name Value -Handler_read_first 0 -Handler_read_key 1 -Handler_read_last 0 -Handler_read_next 294 -Handler_read_prev 0 -Handler_read_retry 0 -Handler_read_rnd 0 -Handler_read_rnd_deleted 0 -Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=on'; explain select max(l_orderkey) from lineitem where l_partkey between 1 and 10 group by l_partkey; @@ -532,30 +254,6 @@ Handler_read_retry 0 Handler_read_rnd 0 Handler_read_rnd_deleted 0 Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=off'; -explain -select max(l_orderkey) from lineitem -where l_suppkey in (1,4) group by l_suppkey; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE lineitem range i_l_suppkey i_l_suppkey 5 NULL # Using where; Using index -flush status; -select max(l_orderkey) from lineitem -where l_suppkey in (1,4) group by l_suppkey; -max(l_orderkey) -5988 -5984 -show status like 'handler_read%'; -Variable_name Value -Handler_read_first 0 -Handler_read_key 2 -Handler_read_last 0 -Handler_read_next 1230 -Handler_read_prev 0 -Handler_read_retry 0 -Handler_read_rnd 0 -Handler_read_rnd_deleted 0 -Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=on'; explain select max(l_orderkey) from lineitem where l_suppkey in (1,4) group by l_suppkey; @@ -579,37 +277,6 @@ Handler_read_rnd 0 Handler_read_rnd_deleted 0 Handler_read_rnd_next 0 create index i_p_retailprice on part(p_retailprice); -set optimizer_switch='extended_keys=off'; -explain -select o_orderkey, p_partkey -from part use index (i_p_retailprice), -lineitem use index (i_l_partkey), orders -where p_retailprice > 1100 and o_orderdate='1997-01-01' -and o_orderkey=l_orderkey and p_partkey=l_partkey; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE part range i_p_retailprice i_p_retailprice 9 NULL # Using where; Using index -1 SIMPLE orders ref PRIMARY,i_o_orderdate i_o_orderdate 4 const # Using index -1 SIMPLE lineitem ref i_l_partkey i_l_partkey 5 dbt3_s001.part.p_partkey # Using where; Using index -flush status; -select o_orderkey, p_partkey -from part use index (i_p_retailprice), -lineitem use index (i_l_partkey), orders -where p_retailprice > 1100 and o_orderdate='1997-01-01' -and o_orderkey=l_orderkey and p_partkey=l_partkey; -o_orderkey p_partkey -5895 200 -show status like 'handler_read%'; -Variable_name Value -Handler_read_first 0 -Handler_read_key 3 -Handler_read_last 0 -Handler_read_next 26 -Handler_read_prev 0 -Handler_read_retry 0 -Handler_read_rnd 0 -Handler_read_rnd_deleted 0 -Handler_read_rnd_next 0 -set optimizer_switch='extended_keys=on'; explain select o_orderkey, p_partkey from part use index (i_p_retailprice), @@ -646,7 +313,6 @@ Handler_read_rnd_next 0 create table t0 (a int); insert into t0 values (1), (2), (3), (4), (5); create index i_p_size on part(p_size); -set optimizer_switch='extended_keys=on'; explain select * from t0, part ignore index (primary) where p_partkey=t0.a and p_size=1; @@ -667,7 +333,6 @@ use test; # set @save_optimizer_switch=@@optimizer_switch; SET optimizer_switch='materialization=on,semijoin=on'; -SET optimizer_switch='extended_keys=on'; CREATE TABLE t1 (a int, b int) ENGINE=MyISAM; INSERT INTO t1 VALUES (1,1), (2,2); SELECT * FROM t1 WHERE 2 IN (SELECT MAX(s1.a) FROM t1 AS s1, t1 AS s2); @@ -688,9 +353,7 @@ set optimizer_switch=@save_optimizer_switch; # + extended_keys = on # (valgrinf complains fixed by the patch for bug #914560) # -set @save_optimizer_switch=@@optimizer_switch; SET optimizer_switch = 'derived_with_keys=on'; -SET optimizer_switch = 'extended_keys=on'; CREATE TABLE t1 (a varchar(1)) ENGINE=MyISAM; INSERT INTO t1 VALUES ('j'), ('v'); CREATE TABLE t2 (b varchar(1)) ENGINE=MyISAM; @@ -720,21 +383,6 @@ c int NOT NULL PRIMARY KEY INSERT INTO t2 VALUES (10), (11), (12), (13), (14), (15), (16), (17), (18), (19), (24); -set @save_optimizer_switch=@@optimizer_switch; -SET optimizer_switch = 'extended_keys=off'; -EXPLAIN -SELECT a FROM t1 AS t, t2 -WHERE c = a AND b IN (SELECT b FROM t1, t2 WHERE b = t.b); -id select_type table type possible_keys key key_len ref rows Extra -1 PRIMARY t index a,b b 7 NULL 10 Using index -1 PRIMARY t1 ref b b 3 test.t.b 2 Using index; Start temporary -1 PRIMARY t2 index NULL PRIMARY 4 NULL 11 Using index; End temporary; Using join buffer (flat, BNL join) -1 PRIMARY t2 eq_ref PRIMARY PRIMARY 4 test.t.a 1 Using index -SELECT a FROM t1 AS t, t2 -WHERE c = a AND b IN (SELECT b FROM t1, t2 WHERE b = t.b); -a -24 -SET optimizer_switch = 'extended_keys=on'; EXPLAIN SELECT a FROM t1 AS t, t2 WHERE c = a AND b IN (SELECT b FROM t1, t2 WHERE b = t.b); @@ -747,7 +395,6 @@ SELECT a FROM t1 AS t, t2 WHERE c = a AND b IN (SELECT b FROM t1, t2 WHERE b = t.b); a 24 -set optimizer_switch=@save_optimizer_switch; DROP TABLE t1,t2; # # LP Bug #923236: hash join + extended_keys = on @@ -756,12 +403,10 @@ CREATE TABLE t1 (a int) ENGINE=MyISAM; CREATE TABLE t2 (b int) ENGINE=MyISAM; INSERT INTO t1 (a) VALUES (4), (6); INSERT INTO t2 (b) VALUES (0), (8); -set @save_optimizer_switch=@@optimizer_switch; set @save_join_cache_level=@@join_cache_level; SET join_cache_level=3; SET optimizer_switch='join_cache_hashed=on'; SET optimizer_switch='join_cache_bka=on'; -SET optimizer_switch='extended_keys=on'; EXPLAIN SELECT * FROM t1, t2 WHERE b=a; id select_type table type possible_keys key key_len ref rows Extra @@ -786,26 +431,16 @@ UNIQUE KEY uq (c2,c3), KEY c3 (c3), KEY c4 (c4) ) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8; -set @save_optimizer_switch=@@optimizer_switch; -set session optimizer_switch='extended_keys=off'; -INSERT INTO t1 (c2, c3, c4) VALUES (58291525, 2580, 'foobar') -ON DUPLICATE KEY UPDATE c4 = VALUES(c4); INSERT INTO t1 (c2, c3, c4) VALUES (58291525, 2580, 'foobar') ON DUPLICATE KEY UPDATE c4 = VALUES(c4); -DELETE FROM t1; -set session optimizer_switch='extended_keys=on'; INSERT INTO t1 (c2, c3, c4) VALUES (58291525, 2580, 'foobar') ON DUPLICATE KEY UPDATE c4 = VALUES(c4); -INSERT INTO t1 (c2, c3, c4) VALUES (58291525, 2580, 'foobar') -ON DUPLICATE KEY UPDATE c4 = VALUES(c4); -set optimizer_switch=@save_optimizer_switch; DROP TABLE t1; # # Bug mdev-4220: using ref instead of eq_ref # with extended_keys=on # (performance regression introduced in the patch for mdev-3851) # -set @save_optimizer_switch=@@optimizer_switch; create table t1 (a int not null) engine=innodb; insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); create table t2 ( @@ -815,29 +450,6 @@ insert into t2 select A.a + 10 * B.a, A.a + 10 * B.a, A.a + 10 * B.a from t1 A, t1 B; -set optimizer_switch='extended_keys=off'; -explain -select * from t1, t2 where t2.a=t1.a and t2.b < 2; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 10 -1 SIMPLE t2 eq_ref a a 4 test.t1.a 1 Using where -flush status; -select * from t1, t2 where t2.a=t1.a and t2.b < 2; -a pk a b -0 0 0 0 -1 1 1 1 -show status like 'handler_read%'; -Variable_name Value -Handler_read_first 0 -Handler_read_key 10 -Handler_read_last 0 -Handler_read_next 0 -Handler_read_prev 0 -Handler_read_retry 0 -Handler_read_rnd 0 -Handler_read_rnd_deleted 0 -Handler_read_rnd_next 11 -set optimizer_switch='extended_keys=on'; explain select * from t1, t2 where t2.a=t1.a and t2.b < 2; id select_type table type possible_keys key key_len ref rows Extra @@ -874,18 +486,6 @@ analyze table t1,t3; Table Op Msg_type Msg_text test.t1 analyze status OK test.t3 analyze status OK -set optimizer_switch='extended_keys=off'; -explain -select * from t1, t3 where t3.col1=t1.a and t3.col2=t1.a; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL # Using where -1 SIMPLE t3 ref col1 col1 8 test.t1.a,test.t1.a # Using index -explain -select * from t1, t3 where t3.col1=t1.a and t3.col2=t1.a and t3.pk1=t1.a; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL # Using where -1 SIMPLE t3 ref PRIMARY,col1 col1 8 test.t1.a,test.t1.a # Using where; Using index -set optimizer_switch='extended_keys=on'; explain select * from t1, t3 where t3.col1=t1.a and t3.col2=t1.a; id select_type table type possible_keys key key_len ref rows Extra @@ -900,7 +500,6 @@ drop table t1,t2,t3; # # Bug mdev-4340: performance regression with extended_keys=on # -set @save_optimizer_switch=@@optimizer_switch; CREATE TABLE t1 ( page_id int(8) unsigned NOT NULL AUTO_INCREMENT, page_namespace int(11) NOT NULL DEFAULT '0', @@ -1000,16 +599,6 @@ INSERT INTO t3 VALUES (89,'text-8008',''),(90,'text-9008',''),(91,'text-9',''),(92,'text-1009',''), (93,'text-2009',''),(94,'text-3009',''),(95,'text-4009',''),(96,'text-5009',''), (97,'text-6009',''),(98,'text-7009',''),(99,'text-8009',''),(100,'text-9009',''); -set optimizer_switch='extended_keys=off'; -EXPLAIN -SELECT * FROM t1, t2 IGNORE INDEX (PRIMARY), t3 -WHERE page_id=rev_page AND rev_text_id=old_id AND page_namespace=4 AND page_title='Sandbox' -ORDER BY rev_timestamp ASC LIMIT 10; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 const PRIMARY,name_title name_title 261 const,const 1 -1 SIMPLE t2 ref page_timestamp page_timestamp 4 const 10 Using where -1 SIMPLE t3 eq_ref PRIMARY PRIMARY 4 test.t2.rev_text_id 1 -set optimizer_switch='extended_keys=on'; EXPLAIN SELECT * FROM t1, t2 IGNORE INDEX (PRIMARY), t3 WHERE page_id=rev_page AND rev_text_id=old_id AND page_namespace=4 AND page_title='Sandbox' @@ -1027,7 +616,6 @@ create table t1 (a bigint not null unique auto_increment, b varchar(10), primary create table t2 (a bigint not null unique auto_increment, b varchar(10), primary key (a), key (b(2))) engine = innodb default character set utf8; insert into t1 (b) values (null), (null), (null); insert into t2 (b) values (null), (null), (null); -set optimizer_switch='extended_keys=on'; explain select a from t1 where b is null order by a desc limit 2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 index b PRIMARY 8 NULL 3 Using where @@ -1042,14 +630,6 @@ select a from t2 where b is null order by a desc limit 2; a 3 2 -set optimizer_switch='extended_keys=off'; -explain select a from t2 where b is null order by a desc limit 2; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t2 range b b 9 NULL 3 Using where; Using filesort -select a from t2 where b is null order by a desc limit 2; -a -3 -2 explain select a from t2 where b is null order by a desc; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t2 index b PRIMARY 8 NULL 3 Using where @@ -1067,7 +647,6 @@ a 2 1 drop table t1, t2; -set optimizer_switch=@save_optimizer_switch; # # MDEV-10325: Queries examines all rows of a tables when it should not # |