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Code Activity

invalidation of locking for write tables (BUG#2693)

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fixed linking query_prealloc_size to query cache presence


mysql-test/r/query_cache.result:
  test of QC invalidation by LOCK command
mysql-test/t/query_cache.test:
  test of QC invalidation by LOCK command
sql/mysqld.cc:
  new variable query_cache_wlock_invalidate
  fixed query_prealloc_size with QC absence
sql/set_var.cc:
  new variable query_cache_wlock_invalidate
sql/sql_cache.cc:
  new method for table invalidation
sql/sql_cache.h:
  new method for table invalidation
sql/sql_class.h:
  new variable query_cache_wlock_invalidate
sql/sql_parse.cc:
  layout fixed
This commit is contained in:
unknown
2004-03-04 18:32:55 +02:00
parent 53368efea3
commit d4f43e511c
8 changed files with 82 additions and 4 deletions
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17
mysql-test/r/query_cache.result
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@ -687,4 +687,21 @@ select * from t3;
delete from t4 where a=1;
flush query cache;
drop table t1,t2,t3,t4;
set query_cache_wlock_invalidate=1;
create table t1 (a int not null);
create table t2 (a int not null);
select * from t1;
a
select * from t2;
a
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 2
lock table t1 write, t2 read;
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 1
unlock table;
drop table t1,t2;
set query_cache_wlock_invalidate=default;
set GLOBAL query_cache_size=0;