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Merge bk-internal:/home/bk/mysql-5.0-opt

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into  macbook.local:/Users/kgeorge/mysql/work/B22781-5.0-opt


sql/sql_select.cc:
  Auto merged
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unknown 2006-10-09 19:53:07 +04:00
commit 09dfd9e7e4
8 changed files with 183 additions and 57 deletions
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72
mysql-test/r/bdb.result
View File

@ -1509,27 +1509,27 @@ i 10
select sql_big_result v,count(t) from t1 group by v limit 10; select sql_big_result v,count(t) from t1 group by v limit 10;
v count(t) v count(t)
a 1 a 1
a 10 a 10
b 10 b 10
c 10 c 10
d 10 d 10
e 10 e 10
f 10 f 10
g 10 g 10
h 10 h 10
i 10 i 10
select sql_big_result v,count(c) from t1 group by v limit 10; select sql_big_result v,count(c) from t1 group by v limit 10;
v count(c) v count(c)
a 1 a 1
a 10 a 10
b 10 b 10
c 10 c 10
d 10 d 10
e 10 e 10
f 10 f 10
g 10 g 10
h 10 h 10
i 10 i 10
select c,count(*) from t1 group by c limit 10; select c,count(*) from t1 group by c limit 10;
c count(*) c count(*)
a 1 a 1
@ -1673,15 +1673,15 @@ i 10
select sql_big_result v,count(t) from t1 group by v limit 10; select sql_big_result v,count(t) from t1 group by v limit 10;
v count(t) v count(t)
a 1 a 1
a 10 a 10
b 10 b 10
c 10 c 10
d 10 d 10
e 10 e 10
f 10 f 10
g 10 g 10
h 10 h 10
i 10 i 10
alter table t1 drop key v, add key v (v(30)); alter table t1 drop key v, add key v (v(30));
show create table t1; show create table t1;
Table Create Table Table Create Table
@ -1800,15 +1800,15 @@ i 10
select sql_big_result v,count(t) from t1 group by v limit 10; select sql_big_result v,count(t) from t1 group by v limit 10;
v count(t) v count(t)
a 1 a 1
a 10 a 10
b 10 b 10
c 10 c 10
d 10 d 10
e 10 e 10
f 10 f 10
g 10 g 10
h 10 h 10
i 10 i 10
drop table t1; drop table t1;
create table t1 (a char(10), unique (a)); create table t1 (a char(10), unique (a));
insert into t1 values ('a '); insert into t1 values ('a ');

67
mysql-test/r/group_by.result
View File

@ -303,10 +303,10 @@ spid sum(userid)
1 1 1 1
explain select sql_big_result score,count(*) from t1 group by score desc; explain select sql_big_result score,count(*) from t1 group by score desc;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL score 3 NULL 8 Using index 1 SIMPLE t1 index NULL score 3 NULL 8 Using index; Using filesort
explain select sql_big_result score,count(*) from t1 group by score desc order by null; explain select sql_big_result score,count(*) from t1 group by score desc order by null;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL score 3 NULL 8 Using index 1 SIMPLE t1 index NULL score 3 NULL 8 Using index; Using filesort
select sql_big_result score,count(*) from t1 group by score desc; select sql_big_result score,count(*) from t1 group by score desc;
score count(*) score count(*)
3 5 3 5
@ -821,3 +821,66 @@ a b real_b
68 France France 68 France France
DROP VIEW v1; DROP VIEW v1;
DROP TABLE t1,t2; DROP TABLE t1,t2;
CREATE TABLE t1 (a INT PRIMARY KEY, b INT, key (b));
INSERT INTO t1 VALUES (1, 1);
INSERT INTO t1 SELECT a + 1 , MOD(a + 1 , 20) FROM t1;
INSERT INTO t1 SELECT a + 2 , MOD(a + 2 , 20) FROM t1;
INSERT INTO t1 SELECT a + 4 , MOD(a + 4 , 20) FROM t1;
INSERT INTO t1 SELECT a + 8 , MOD(a + 8 , 20) FROM t1;
INSERT INTO t1 SELECT a + 16, MOD(a + 16, 20) FROM t1;
INSERT INTO t1 SELECT a + 32, MOD(a + 32, 20) FROM t1;
INSERT INTO t1 SELECT a + 64, MOD(a + 64, 20) FROM t1;
SELECT MIN(b), MAX(b) from t1;
MIN(b) MAX(b)
0 19
EXPLAIN SELECT b, sum(1) FROM t1 GROUP BY b;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL b 5 NULL 128 Using index
EXPLAIN SELECT SQL_BIG_RESULT b, sum(1) FROM t1 GROUP BY b;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL b 5 NULL 128 Using index; Using filesort
SELECT b, sum(1) FROM t1 GROUP BY b;
b sum(1)
0 6
1 7
2 7
3 7
4 7
5 7
6 7
7 7
8 7
9 6
10 6
11 6
12 6
13 6
14 6
15 6
16 6
17 6
18 6
19 6
SELECT SQL_BIG_RESULT b, sum(1) FROM t1 GROUP BY b;
b sum(1)
0 6
1 7
2 7
3 7
4 7
5 7
6 7
7 7
8 7
9 6
10 6
11 6
12 6
13 6
14 6
15 6
16 6
17 6
18 6
19 6
DROP TABLE t1;

16
mysql-test/r/innodb.result
View File

@ -2070,15 +2070,15 @@ i 10
select sql_big_result v,count(c) from t1 group by v limit 10; select sql_big_result v,count(c) from t1 group by v limit 10;
v count(c) v count(c)
a 1 a 1
a 10 a 10
b 10 b 10
c 10 c 10
d 10 d 10
e 10 e 10
f 10 f 10
g 10 g 10
h 10 h 10
i 10 i 10
select c,count(*) from t1 group by c limit 10; select c,count(*) from t1 group by c limit 10;
c count(*) c count(*)
a 1 a 1

16
mysql-test/r/innodb_mysql.result
View File

@ -337,3 +337,19 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 index NULL fkey 5 NULL 5 Using index 1 SIMPLE t2 index NULL fkey 5 NULL 5 Using index
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.fkey 1 Using where 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.fkey 1 Using where
DROP TABLE t1,t2; DROP TABLE t1,t2;
CREATE TABLE t1 (a INT PRIMARY KEY, b INT, c FLOAT, KEY b(b)) ENGINE = INNODB;
INSERT INTO t1 VALUES ( 1 , 1 , 1);
INSERT INTO t1 SELECT a + 1 , MOD(a + 1 , 20), 1 FROM t1;
INSERT INTO t1 SELECT a + 2 , MOD(a + 2 , 20), 1 FROM t1;
INSERT INTO t1 SELECT a + 4 , MOD(a + 4 , 20), 1 FROM t1;
INSERT INTO t1 SELECT a + 8 , MOD(a + 8 , 20), 1 FROM t1;
INSERT INTO t1 SELECT a + 16, MOD(a + 16, 20), 1 FROM t1;
INSERT INTO t1 SELECT a + 32, MOD(a + 32, 20), 1 FROM t1;
INSERT INTO t1 SELECT a + 64, MOD(a + 64, 20), 1 FROM t1;
EXPLAIN SELECT b, SUM(c) FROM t1 GROUP BY b;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL b 5 NULL 128
EXPLAIN SELECT SQL_BIG_RESULT b, SUM(c) FROM t1 GROUP BY b;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 128 Using filesort
DROP TABLE t1;

16
mysql-test/r/myisam.result
View File

@ -1002,15 +1002,15 @@ i 10
select sql_big_result v,count(c) from t1 group by v limit 10; select sql_big_result v,count(c) from t1 group by v limit 10;
v count(c) v count(c)
a 1 a 1
a 10 a 10
b 10 b 10
c 10 c 10
d 10 d 10
e 10 e 10
f 10 f 10
g 10 g 10
h 10 h 10
i 10 i 10
select c,count(*) from t1 group by c limit 10; select c,count(*) from t1 group by c limit 10;
c count(*) c count(*)
a 1 a 1

22
mysql-test/t/group_by.test
View File

@ -655,3 +655,25 @@ where t2.b=v1.a GROUP BY t2.b;
DROP VIEW v1; DROP VIEW v1;
DROP TABLE t1,t2; DROP TABLE t1,t2;
#
# Bug#22781: SQL_BIG_RESULT fails to influence sort plan
#
CREATE TABLE t1 (a INT PRIMARY KEY, b INT, key (b));
INSERT INTO t1 VALUES (1, 1);
INSERT INTO t1 SELECT a + 1 , MOD(a + 1 , 20) FROM t1;
INSERT INTO t1 SELECT a + 2 , MOD(a + 2 , 20) FROM t1;
INSERT INTO t1 SELECT a + 4 , MOD(a + 4 , 20) FROM t1;
INSERT INTO t1 SELECT a + 8 , MOD(a + 8 , 20) FROM t1;
INSERT INTO t1 SELECT a + 16, MOD(a + 16, 20) FROM t1;
INSERT INTO t1 SELECT a + 32, MOD(a + 32, 20) FROM t1;
INSERT INTO t1 SELECT a + 64, MOD(a + 64, 20) FROM t1;
SELECT MIN(b), MAX(b) from t1;
EXPLAIN SELECT b, sum(1) FROM t1 GROUP BY b;
EXPLAIN SELECT SQL_BIG_RESULT b, sum(1) FROM t1 GROUP BY b;
SELECT b, sum(1) FROM t1 GROUP BY b;
SELECT SQL_BIG_RESULT b, sum(1) FROM t1 GROUP BY b;
DROP TABLE t1;

18
mysql-test/t/innodb_mysql.test
View File

@ -302,3 +302,21 @@ SELECT COUNT(*) FROM t2 LEFT JOIN t1 ON t2.fkey = t1.id
WHERE t1.name LIKE 'A%' OR FALSE; WHERE t1.name LIKE 'A%' OR FALSE;
DROP TABLE t1,t2; DROP TABLE t1,t2;
#
# Bug#22781: SQL_BIG_RESULT fails to influence sort plan
#
CREATE TABLE t1 (a INT PRIMARY KEY, b INT, c FLOAT, KEY b(b)) ENGINE = INNODB;
INSERT INTO t1 VALUES ( 1 , 1 , 1);
INSERT INTO t1 SELECT a + 1 , MOD(a + 1 , 20), 1 FROM t1;
INSERT INTO t1 SELECT a + 2 , MOD(a + 2 , 20), 1 FROM t1;
INSERT INTO t1 SELECT a + 4 , MOD(a + 4 , 20), 1 FROM t1;
INSERT INTO t1 SELECT a + 8 , MOD(a + 8 , 20), 1 FROM t1;
INSERT INTO t1 SELECT a + 16, MOD(a + 16, 20), 1 FROM t1;
INSERT INTO t1 SELECT a + 32, MOD(a + 32, 20), 1 FROM t1;
INSERT INTO t1 SELECT a + 64, MOD(a + 64, 20), 1 FROM t1;
EXPLAIN SELECT b, SUM(c) FROM t1 GROUP BY b;
EXPLAIN SELECT SQL_BIG_RESULT b, SUM(c) FROM t1 GROUP BY b;
DROP TABLE t1;

13
sql/sql_select.cc
View File

@ -1399,7 +1399,8 @@ JOIN::exec()
simple_order= simple_group; simple_order= simple_group;
skip_sort_order= 0; skip_sort_order= 0;
} }
if (order && if (order &&
(order != group_list || !(select_options & SELECT_BIG_RESULT)) &&
(const_tables == tables || (const_tables == tables ||
((simple_order || skip_sort_order) && ((simple_order || skip_sort_order) &&
test_if_skip_sort_order(&join_tab[const_tables], order, test_if_skip_sort_order(&join_tab[const_tables], order,
@ -11995,11 +11996,17 @@ create_sort_index(THD *thd, JOIN *join, ORDER *order,
table= tab->table; table= tab->table;
select= tab->select; select= tab->select;
if (test_if_skip_sort_order(tab,order,select_limit,0)) /*
When there is SQL_BIG_RESULT do not sort using index for GROUP BY,
and thus force sorting on disk.
*/
if ((order != join->group_list ||
!(join->select_options & SELECT_BIG_RESULT)) &&
test_if_skip_sort_order(tab,order,select_limit,0))
DBUG_RETURN(0); DBUG_RETURN(0);
if (!(sortorder=make_unireg_sortorder(order,&length))) if (!(sortorder=make_unireg_sortorder(order,&length)))
goto err; /* purecov: inspected */ goto err; /* purecov: inspected */
/* It's not fatal if the following alloc fails */
table->sort.io_cache=(IO_CACHE*) my_malloc(sizeof(IO_CACHE), table->sort.io_cache=(IO_CACHE*) my_malloc(sizeof(IO_CACHE),
MYF(MY_WME | MY_ZEROFILL)); MYF(MY_WME | MY_ZEROFILL));
table->status=0; // May be wrong if quick_select table->status=0; // May be wrong if quick_select