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Merge bk-internal:/home/bk/mysql-5.1-new

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into  neptunus.(none):/home/msvensson/mysql/wl2930/my51-wl2930-integration
This commit is contained in:
unknown 2006-01-10 11:42:20 +01:00
commit 0555413735
6 changed files with 85 additions and 6 deletions
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13
mysql-test/r/having.result
View File

@ -128,6 +128,19 @@ id description c
1 test 0
2 test2 0
drop table t1,t2,t3;
CREATE TABLE t1 (a int);
INSERT INTO t1 VALUES (3), (4), (1), (3), (1);
SELECT SUM(a) FROM t1 GROUP BY a HAVING SUM(a)>0;
SUM(a)
2
6
4
SELECT SUM(a) FROM t1 GROUP BY a HAVING SUM(a);
SUM(a)
2
6
4
DROP TABLE t1;
create table t1 (col1 int, col2 varchar(5), col_t1 int);
create table t2 (col1 int, col2 varchar(5), col_t2 int);
create table t3 (col1 int, col2 varchar(5), col_t3 int);

29
mysql-test/r/view.result
View File

@ -2475,3 +2475,32 @@ alias1 alias2
5 5
drop view v2, v1;
drop table t1;
CREATE TABLE t1 (a int PRIMARY KEY, b int);
INSERT INTO t1 VALUES (2,20), (3,10), (1,10), (0,30), (5,10);
CREATE VIEW v1 AS SELECT * FROM t1;
SELECT MAX(a) FROM t1;
MAX(a)
5
SELECT MAX(a) FROM v1;
MAX(a)
5
EXPLAIN SELECT MAX(a) FROM t1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Select tables optimized away
EXPLAIN SELECT MAX(a) FROM v1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Select tables optimized away
SELECT MIN(a) FROM t1;
MIN(a)
0
SELECT MIN(a) FROM v1;
MIN(a)
0
EXPLAIN SELECT MIN(a) FROM t1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Select tables optimized away
EXPLAIN SELECT MIN(a) FROM v1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Select tables optimized away
DROP VIEW v1;
DROP TABLE t1;

12
mysql-test/t/having.test
View File

@ -123,6 +123,18 @@ group by a.id, a.description
having (a.description is not null) and (c=0);
drop table t1,t2,t3;
#
# Bug #14274: HAVING clause containing only set function
#
CREATE TABLE t1 (a int);
INSERT INTO t1 VALUES (3), (4), (1), (3), (1);
SELECT SUM(a) FROM t1 GROUP BY a HAVING SUM(a)>0;
SELECT SUM(a) FROM t1 GROUP BY a HAVING SUM(a);
DROP TABLE t1;
# End of 4.1 tests
#

24
mysql-test/t/view.test
View File

@ -2343,3 +2343,27 @@ order by v2.receipt_id;
drop view v2, v1;
drop table t1;
#
# Bug#16016: MIN/MAX optimization for views
#
CREATE TABLE t1 (a int PRIMARY KEY, b int);
INSERT INTO t1 VALUES (2,20), (3,10), (1,10), (0,30), (5,10);
CREATE VIEW v1 AS SELECT * FROM t1;
SELECT MAX(a) FROM t1;
SELECT MAX(a) FROM v1;
EXPLAIN SELECT MAX(a) FROM t1;
EXPLAIN SELECT MAX(a) FROM v1;
SELECT MIN(a) FROM t1;
SELECT MIN(a) FROM v1;
EXPLAIN SELECT MIN(a) FROM t1;
EXPLAIN SELECT MIN(a) FROM v1;
DROP VIEW v1;
DROP TABLE t1;

10
sql/opt_sum.cc
View File

@ -180,14 +180,14 @@ int opt_sum_query(TABLE_LIST *tables, List<Item> &all_fields,COND *conds)
indexes to find the key.
*/
Item *expr=item_sum->args[0];
if (expr->type() == Item::FIELD_ITEM)
if (expr->real_item()->type() == Item::FIELD_ITEM)
{
byte key_buff[MAX_KEY_LENGTH];
TABLE_REF ref;
uint range_fl, prefix_len;
ref.key_buff= key_buff;
Item_field *item_field= ((Item_field*) expr);
Item_field *item_field= (Item_field*) (expr->real_item());
TABLE *table= item_field->field->table;
/*
@ -267,14 +267,14 @@ int opt_sum_query(TABLE_LIST *tables, List<Item> &all_fields,COND *conds)
indexes to find the key.
*/
Item *expr=item_sum->args[0];
if (expr->type() == Item::FIELD_ITEM)
if (expr->real_item()->type() == Item::FIELD_ITEM)
{
byte key_buff[MAX_KEY_LENGTH];
TABLE_REF ref;
uint range_fl, prefix_len;
uint range_fl, prefix_len;
ref.key_buff= key_buff;
Item_field *item_field= ((Item_field*) expr);
Item_field *item_field= (Item_field*) (expr->real_item());
TABLE *table= item_field->field->table;
/*

3
sql/sql_select.cc
View File

@ -365,7 +365,8 @@ JOIN::prepare(Item ***rref_pointer_array,
if (having_fix_rc || thd->net.report_error)
DBUG_RETURN(-1); /* purecov: inspected */
if (having->with_sum_func)
having->split_sum_func(thd, ref_pointer_array, all_fields);
having->split_sum_func2(thd, ref_pointer_array, all_fields,
&having, TRUE);
thd->lex->allow_sum_func= save_allow_sum_func;
}
if (select_lex->inner_sum_func_list)