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Merge 5.3->5.5.

Browse Source 
In particular:
Merged the patch for bug mdev-4418 from 5.3 into 5.5.
Fixed a bug in the patch that should be backported to 5.3.
This commit is contained in:
Igor Babaev
2013-08-18 19:58:51 -07:00
parent b59738a598 25c152018d
commit 4eddb2c221
26 changed files with 810 additions and 199 deletions
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49
mysql-test/r/range.result
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@ -712,14 +712,14 @@ INSERT INTO t1 VALUES
'd8c4177d09f8b11f5.52725522');
EXPLAIN
SELECT s.oxid FROM t1 v, t1 s
WHERE s.oxrootid = 'd8c4177d09f8b11f5.52725521' AND
WHERE
v.oxrootid ='d8c4177d09f8b11f5.52725521' AND
s.oxleft > v.oxleft AND s.oxleft < v.oxright;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE v ref OXLEFT,OXRIGHT,OXROOTID OXROOTID 34 const 5 Using index condition
1 SIMPLE s ALL OXLEFT NULL NULL NULL 12 Range checked for each record (index map: 0x4)
SELECT s.oxid FROM t1 v, t1 s
WHERE s.oxrootid = 'd8c4177d09f8b11f5.52725521' AND
WHERE
v.oxrootid ='d8c4177d09f8b11f5.52725521' AND
s.oxleft > v.oxleft AND s.oxleft < v.oxright;
oxid
@ -728,6 +728,11 @@ d8c4177d206a333d2.74422679
d8c4177d225791924.30714720
d8c4177d2380fc201.39666693
d8c4177d24ccef970.14957924
d8c4177d151affab2.81582771
d8c4177d206a333d2.74422678
d8c4177d225791924.30714721
d8c4177d2380fc201.39666694
d8c4177d24ccef970.14957925
DROP TABLE t1;
create table t1 (
c1 char(10), c2 char(10), c3 char(10), c4 char(10),
@ -1887,6 +1892,46 @@ AAA AAA AAA
AAAA AAAA AAAA
AAAAA AAAAA AAAAA
DROP TABLE t1;
#
# mdev-4894: Poor performance with unnecessary
# (bug#70021) 'Range checked for each record'
#
create table t1( key1 int not null, INDEX i1(key1) );
insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8);
insert into t1 select key1+8 from t1;
insert into t1 select key1+16 from t1;
insert into t1 select key1+32 from t1;
insert into t1 select key1+64 from t1;
insert into t1 select key1+128 from t1;
insert into t1 select key1+256 from t1;
insert into t1 select key1+512 from t1;
alter table t1 add key2 int not null, add index i2(key2);
update t1 set key2=key1;
analyze table t1;
Table Op Msg_type Msg_text
test.t1 analyze status OK
create table t2 (a int);
insert into t2 values (1),(2),(3),(4),(5),(6),(7),(8);
insert into t2 select a+16 from t2;
insert into t2 select a+32 from t2;
insert into t2 select a+64 from t2;
explain
select count(*) from t2 left join t1 on (t1.key1 < 3 or t1.key1 > 1020) and t1.key2 < 1000;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 64
1 SIMPLE t1 range i1,i2 i1 4 NULL 78 Using where; Using join buffer (flat, BNL join)
select count(*) from t2 left join t1 on (t1.key1 < 3 or t1.key1 > 1020) and t1.key2 < 1000;
count(*)
128
explain
select count(*) from t2 left join t1 on (t1.key1 < 3 or t1.key1 > 1020) and t1.key2 < t2.a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL NULL NULL NULL NULL 64
1 SIMPLE t1 range i1,i2 i1 4 NULL 78 Using where; Using join buffer (flat, BNL join)
select count(*) from t2 left join t1 on (t1.key1 < 3 or t1.key1 > 1020) and t1.key2 < t2.a;
count(*)
126
drop table t1,t2;
End of 5.1 tests
#
# LP Bug #533117: Wrong use_count in SEL_ARG trees