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Merge gleb.loc:/home/uchum/work/bk/5.0-opt-29338

Browse source 
into  gleb.loc:/home/uchum/work/bk/5.0-opt
This commit is contained in:
gshchepa/uchum@gleb.loc 2007-07-22 00:40:14 +05:00
commit 2313bbc304
4 changed files with 75 additions and 3 deletions
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33
mysql-test/r/sp.result
View file

@ -1,5 +1,7 @@
use test;
drop table if exists t1,t2,t3,t4;
drop function if exists f1;
drop function if exists f2;
create table t1 (
id char(16) not null default '',
data int not null
@ -6144,7 +6146,7 @@ drop table t1,t2;
CREATE TABLE t1 (a int auto_increment primary key) engine=MyISAM;
CREATE TABLE t2 (a int auto_increment primary key, b int) engine=innodb;
set @a=0;
CREATE function bug27354() RETURNS int deterministic
CREATE function bug27354() RETURNS int not deterministic
begin
insert into t1 values (null);
set @a=@a+1;
@ -6201,4 +6203,33 @@ Level Code Message
use test;
drop procedure sp_bug29050;
drop table t1;
CREATE FUNCTION f1() RETURNS INT DETERMINISTIC RETURN 2;
CREATE FUNCTION f2(I INT) RETURNS INT DETERMINISTIC RETURN 3;
CREATE TABLE t1 (c1 INT, INDEX(c1));
INSERT INTO t1 VALUES (1), (2), (3), (4), (5);
CREATE VIEW v1 AS SELECT c1 FROM t1;
EXPLAIN SELECT * FROM t1 WHERE c1=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref c1 c1 5 const 1 Using where; Using index
EXPLAIN SELECT * FROM t1 WHERE c1=f1();
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref c1 c1 5 const 1 Using where; Using index
EXPLAIN SELECT * FROM v1 WHERE c1=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref c1 c1 5 const 1 Using where; Using index
EXPLAIN SELECT * FROM v1 WHERE c1=f1();
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref c1 c1 5 const 1 Using where; Using index
EXPLAIN SELECT * FROM t1 WHERE c1=f2(10);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref c1 c1 5 const 1 Using where; Using index
EXPLAIN SELECT * FROM t1 WHERE c1=f2(c1);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL c1 5 NULL 5 Using where; Using index
EXPLAIN SELECT * FROM t1 WHERE c1=f2(rand());
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index NULL c1 5 NULL 5 Using where; Using index
DROP VIEW v1;
DROP FUNCTION f1;
DROP TABLE t1;
End of 5.0 tests

33
mysql-test/t/sp.test
View file

@ -23,6 +23,8 @@ use test;
#
--disable_warnings
drop table if exists t1,t2,t3,t4;
drop function if exists f1;
drop function if exists f2;
--enable_warnings
create table t1 (
id char(16) not null default '',
@ -7098,7 +7100,7 @@ CREATE TABLE t2 (a int auto_increment primary key, b int) engine=innodb;
set @a=0;
delimiter |;
CREATE function bug27354() RETURNS int deterministic
CREATE function bug27354() RETURNS int not deterministic
begin
insert into t1 values (null);
set @a=@a+1;
@ -7172,4 +7174,33 @@ use test;
drop procedure sp_bug29050;
drop table t1;
#
# Bug #29338: no optimization for stored functions with a trivial body
# always returning constant.
#
CREATE FUNCTION f1() RETURNS INT DETERMINISTIC RETURN 2;
CREATE FUNCTION f2(I INT) RETURNS INT DETERMINISTIC RETURN 3;
CREATE TABLE t1 (c1 INT, INDEX(c1));
INSERT INTO t1 VALUES (1), (2), (3), (4), (5);
CREATE VIEW v1 AS SELECT c1 FROM t1;
EXPLAIN SELECT * FROM t1 WHERE c1=1;
EXPLAIN SELECT * FROM t1 WHERE c1=f1();
EXPLAIN SELECT * FROM v1 WHERE c1=1;
EXPLAIN SELECT * FROM v1 WHERE c1=f1();
EXPLAIN SELECT * FROM t1 WHERE c1=f2(10);
EXPLAIN SELECT * FROM t1 WHERE c1=f2(c1);
EXPLAIN SELECT * FROM t1 WHERE c1=f2(rand());
DROP VIEW v1;
DROP FUNCTION f1;
DROP TABLE t1;
--echo End of 5.0 tests

10
sql/item_func.cc
View file

@ -5591,5 +5591,15 @@ Item_func_sp::fix_fields(THD *thd, Item **ref)
#endif /* ! NO_EMBEDDED_ACCESS_CHECKS */
}
if (!m_sp->m_chistics->detistic)
used_tables_cache |= RAND_TABLE_BIT;
DBUG_RETURN(res);
}
void Item_func_sp::update_used_tables()
{
Item_func::update_used_tables();
if (!m_sp->m_chistics->detistic)
used_tables_cache |= RAND_TABLE_BIT;
}

2
sql/item_func.h
View file

@ -1467,7 +1467,7 @@ public:
virtual ~Item_func_sp()
{}
table_map used_tables() const { return RAND_TABLE_BIT; }
void update_used_tables();
void cleanup();