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branches/zip: innodb-index.result: Adapt the results to a patch from MySQL.

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Unfortunately, the patch seems to prevent MySQL from utilizing secondary
indexes in the ORDER BY clauses.  Thus, the test no longer checks if newly
created indexes are well-formed.

ChangeSet@1.2528.98.1  2007-08-02 12:45:56-07:00  igor@mysql.com

Fixed bug#28404.
This patch adds cost estimation for the queries with ORDER BY / GROUP BY
and LIMIT. 
If there was a ref/range access to the table whose rows were required
to be ordered in the result set the optimizer always employed this access
though a scan by a different index that was compatible with the required 
order could be cheaper to produce the first L rows of the result set.
Now for such queries the optimizer makes a choice between the cheapest
ref/range accesses not compatible with the given order and index scans
compatible with it.
This commit is contained in:
marko
2007-10-08 12:16:32 +00:00
parent bfc48819c5
commit dcde0edf82
1 changed files with 19 additions and 19 deletions
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38
mysql-test/innodb-index.result
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@@ -17,7 +17,7 @@ t1 CREATE TABLE `t1` (
) ENGINE=InnoDB DEFAULT CHARSET=latin1
explain select * from t1 order by d;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL d2 23 NULL 4
1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using filesort
select * from t1 order by d;
a b c d
3 4 ad ad
@@ -104,7 +104,7 @@ t1 CREATE TABLE `t1` (
) ENGINE=InnoDB DEFAULT CHARSET=latin1
explain select * from t1 order by c;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL c 10 NULL 4
1 SIMPLE t1 ALL NULL NULL NULL NULL 4 Using filesort
select * from t1 order by c;
a b c d
3 4 ad ad
@@ -156,13 +156,13 @@ a b c d
4 4 tr tr
explain select * from t1 order by b;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL b 5 NULL 5
1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using filesort
explain select * from t1 order by c;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL c 10 NULL 5
1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using filesort
explain select * from t1 order by d;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL d2 23 NULL 5
1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using filesort
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
@@ -341,7 +341,7 @@ a b c d
8 9 fff fff
explain select * from t1 order by b;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL b 16 NULL 5
1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using filesort
explain select * from t1 order by c;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using filesort
@@ -394,7 +394,7 @@ a b c d
11 11 kkk kkk
explain select * from t1 order by b;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL b 16 NULL 6
1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using filesort
explain select * from t1 order by c;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using filesort
@@ -452,10 +452,10 @@ a b c d
11 11 kkk kkk
explain select * from t1 order by b;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL b 16 NULL 7
1 SIMPLE t1 ALL NULL NULL NULL NULL 7 Using filesort
explain select * from t1 order by c;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL c 34 NULL 7
1 SIMPLE t1 ALL NULL NULL NULL NULL 7 Using filesort
explain select * from t1 order by d;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 7 Using filesort
@@ -639,7 +639,7 @@ a b c d
10 10 kkk iii
explain select * from t1 order by b;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL b 5 NULL 6
1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using filesort
explain select * from t1 order by c;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using filesort
@@ -696,13 +696,13 @@ a b c d
11 11 aaa mmm
explain select * from t1 order by b;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL b 5 NULL 7
1 SIMPLE t1 ALL NULL NULL NULL NULL 7 Using filesort
explain select * from t1 order by c;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL c 31 NULL 7
1 SIMPLE t1 ALL NULL NULL NULL NULL 7 Using filesort
explain select * from t1 order by d;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL d 63 NULL 7
1 SIMPLE t1 ALL NULL NULL NULL NULL 7 Using filesort
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
@@ -766,7 +766,7 @@ a b c d
8 9 fff fff
explain select * from t1 order by b;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL b 5 NULL 5
1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using filesort
explain select * from t1 order by c;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using filesort
@@ -819,13 +819,13 @@ a b c d
10 10 aaa kkk
explain select * from t1 order by b;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL b 5 NULL 6
1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using filesort
explain select * from t1 order by c;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL c 21 NULL 6
1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using filesort
explain select * from t1 order by d;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL d 43 NULL 6
1 SIMPLE t1 ALL NULL NULL NULL NULL 6 Using filesort
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
@@ -914,13 +914,13 @@ Table Op Msg_type Msg_text
test.t1 check status OK
explain select * from t1 order by c;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL c 5 NULL 9
1 SIMPLE t1 ALL NULL NULL NULL NULL 9 Using filesort
explain select * from t1 order by a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL PRIMARY 4 NULL 9
explain select * from t1 order by b;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL b 4 NULL 9
1 SIMPLE t1 ALL NULL NULL NULL NULL 9 Using filesort
select * from t1 order by a;
a b c
1 5 1