Commit 958160ab authored by unknown's avatar unknown

Merge sanja.is.com.ua:/home/bell/mysql/bk/mysql-4.0

into sanja.is.com.ua:/home/bell/mysql/bk/work-qc_crash-4.0
parents 63b1cc00 e8b1b48a
set GLOBAL query_cache_size=1355776;
flush query cache;
flush query cache;
reset query cache;
flush status;
drop table if exists t1,t2,t3;
drop table if exists t1,t2,t3,t4,t11,t21;
drop database if exists mysqltest;
create table t1 (a int not null);
insert into t1 values (1),(2),(3);
......@@ -640,3 +641,43 @@ Variable_name Value
Qcache_queries_in_cache 2
SET OPTION SQL_SELECT_LIMIT=DEFAULT;
drop table t1;
flush query cache;
reset query cache;
flush status;
set GLOBAL query_cache_size=1048576;
create table t1 (a int not null);
insert into t1 values (1),(2),(3);
create table t2 (a text not null);
create table t3 (a text not null);
insert into t3 values("1111111111111111111111111111111111111111111111111111");
insert into t2 select * from t3;
insert into t3 select * from t2;
insert into t2 select * from t3;
insert into t3 select * from t2;
insert into t2 select * from t3;
insert into t3 select * from t2;
insert into t2 select * from t3;
insert into t3 select * from t2;
insert into t2 select * from t3;
insert into t3 select * from t2;
drop table t2;
create table t2 (a int not null);
insert into t2 values (1),(2),(3);
create table t4 (a int not null);
insert into t4 values (1),(2),(3);
select * from t4;
select * from t2;
select * from t1 as tt, t1 as ttt where tt.a=1 and ttt.a=2;
select * from t2;
select * from t4;
select * from t1 as tt, t1 as ttt where tt.a=1 and ttt.a=2;
select * from t2;
select * from t4;
select * from t1 as tt, t1 as ttt where tt.a=1 and ttt.a=2;
delete from t2 where a=1;
flush query cache;
select * from t3;
delete from t4 where a=1;
flush query cache;
drop table t1,t2,t3,t4;
set GLOBAL query_cache_size=0;
--set-variable=query_cache_size=1355776
......@@ -3,6 +3,7 @@
#
# Tests with query cache
#
set GLOBAL query_cache_size=1355776;
# Reset query cache variables.
......@@ -10,7 +11,7 @@ flush query cache; # This crashed in some versions
flush query cache; # This crashed in some versions
reset query cache;
flush status;
drop table if exists t1,t2,t3;
drop table if exists t1,t2,t3,t4,t11,t21;
drop database if exists mysqltest;
#
......@@ -450,3 +451,55 @@ select * from t1;
show status like "Qcache_queries_in_cache";
SET OPTION SQL_SELECT_LIMIT=DEFAULT;
drop table t1;
#
# query cache crash on using same table twice in one query test
#
flush query cache;
reset query cache;
flush status;
set GLOBAL query_cache_size=1048576;
create table t1 (a int not null);
insert into t1 values (1),(2),(3);
create table t2 (a text not null);
create table t3 (a text not null);
insert into t3 values("1111111111111111111111111111111111111111111111111111");
insert into t2 select * from t3;
insert into t3 select * from t2;
insert into t2 select * from t3;
insert into t3 select * from t2;
insert into t2 select * from t3;
insert into t3 select * from t2;
insert into t2 select * from t3;
insert into t3 select * from t2;
insert into t2 select * from t3;
insert into t3 select * from t2;
drop table t2;
create table t2 (a int not null);
insert into t2 values (1),(2),(3);
create table t4 (a int not null);
insert into t4 values (1),(2),(3);
disable_result_log;
select * from t4;
select * from t2;
select * from t1 as tt, t1 as ttt where tt.a=1 and ttt.a=2;
select * from t2;
select * from t4;
select * from t1 as tt, t1 as ttt where tt.a=1 and ttt.a=2;
select * from t2;
select * from t4;
select * from t1 as tt, t1 as ttt where tt.a=1 and ttt.a=2;
delete from t2 where a=1;
flush query cache;
select * from t3;
enable_result_log;
delete from t4 where a=1;
flush query cache;
drop table t1,t2,t3,t4;
set GLOBAL query_cache_size=0;
......@@ -2666,11 +2666,33 @@ my_bool Query_cache::move_by_type(byte **border,
relink(block, new_block, next, prev, pnext, pprev);
if (queries_blocks == block)
queries_blocks = new_block;
Query_cache_block_table *beg_of_table_table= block->table(0),
*end_of_table_table= block->table(n_tables);
byte *beg_of_new_table_table= (byte*) new_block->table(0);
for (TABLE_COUNTER_TYPE j=0; j < n_tables; j++)
{
Query_cache_block_table *block_table = new_block->table(j);
block_table->next->prev = block_table;
block_table->prev->next = block_table;
// use aligment from begining of table if 'next' is in same block
if ((beg_of_table_table <= block_table->next) &&
(block_table->next < end_of_table_table))
((Query_cache_block_table *)(beg_of_new_table_table +
(((byte*)block_table->next) -
((byte*)beg_of_table_table))))->prev=
block_table;
else
block_table->next->prev= block_table;
// use aligment from begining of table if 'prev' is in same block
if ((beg_of_table_table <= block_table->prev) &&
(block_table->prev < end_of_table_table))
((Query_cache_block_table *)(beg_of_new_table_table +
(((byte*)block_table->prev) -
((byte*)beg_of_table_table))))->next=
block_table;
else
block_table->prev->next = block_table;
}
DBUG_PRINT("qcache", ("after circle tt"));
*border += len;
......
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