B4BY.588

: / usr / share / mysql-test / t /
Filename : query_cache_with_views.test
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-- source include/have_query_cache.inc
#
# QUERY CACHE options for VIEWs
#
--disable_warnings
drop table if exists t1,t2,v1,v2,v3;
drop view if exists t1,t2,v1,v2,v3;
--enable_warnings

set GLOBAL query_cache_size=1355776;
flush status;
create table t1 (a int, b int);

# queries with following views should not be in query cache
create view v1 (c,d) as select sql_no_cache a,b from t1;
create view v2 (c,d) as select a+rand(),b from t1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from v1;
select * from v2;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from v1;
select * from v2;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";

drop view v1,v2;

# SQL_CACHE option
set query_cache_type=demand;
flush status;
# query with view will be cached, but direct acess to table will not
create view v1 (c,d) as select sql_cache a,b from t1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from v1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from t1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from v1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from t1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
drop view v1;
set query_cache_type=default;

drop table t1;

#
# invalidation of view
#
create table t1 (a int);
insert into t1 values (1), (2), (3);
create view v1 as select a from t1 where a > 1;
select * from v1;
alter view v1 as select a from t1 where a > 2;
select * from v1;
drop view v1;
-- error 1146
select * from v1;
drop table t1;

#
# join view with QC
#
create table t1 (a int, primary key (a), b int);
create table t2 (a int, primary key (a), b int);
insert into t2 values (1000, 2000);
create view v3 (a,b) as select t1.a as a, t2.a as b from t1, t2;
select * from v3;
drop view v3;
drop table t1, t2;

#
# Bug #13424 locking view with query cache enabled crashes server
#
create table t1(f1 int);
insert into t1 values(1),(2),(3);
create view v1 as select * from t1;
set query_cache_wlock_invalidate=1;
lock tables v1 read /*!32311 local */;
unlock tables;
set query_cache_wlock_invalidate=default;
drop view v1;
drop table t1;

#
# BUG#15119: returning temptable view from the query cache.
#
flush status;
create table t1 (a int, b int);
create algorithm=temptable view v1 as select * from t1;
select * from v1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from v1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
insert into t1 values (1,1);
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
select * from v1;
select * from v1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
drop view v1;
show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts";
show status like "Qcache_hits";
drop table t1;

--echo #
--echo # Bug46615 Assertion in Query_cache::invalidate in INSERT in a VIEW of a MERGE table
--echo #
CREATE TABLE t1 (c1 INT, c2 INT);
CREATE TABLE t2 LIKE t1;
SET AUTOCOMMIT=OFF;
CREATE VIEW t1_view AS SELECT c1 FROM t1 NATURAL JOIN t2 ;
# Before the bug patch the below INSERT stmt used to 
# crash when other fields than the ones listed in the
# view definition were used.
--error ER_BAD_FIELD_ERROR
INSERT INTO t1_view (c1, c2) SELECT c1, c2 FROM t1; 
DROP TABLE t1;
DROP TABLE t2;
DROP VIEW t1_view;
SET AUTOCOMMIT=DEFAULT;

# Reset default environment.
set GLOBAL query_cache_size=default;