drop table if exists t1,t2,v1,v2,v3; drop view if exists t1,t2,v1,v2,v3; set GLOBAL query_cache_size=1355776; flush status; create table t1 (a int, b int); 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"; Variable_name Value Qcache_queries_in_cache 0 show status like "Qcache_inserts"; Variable_name Value Qcache_inserts 0 show status like "Qcache_hits"; Variable_name Value Qcache_hits 0 select * from v1; c d select * from v2; c d show status like "Qcache_queries_in_cache"; Variable_name Value Qcache_queries_in_cache 0 show status like "Qcache_inserts"; Variable_name Value Qcache_inserts 0 show status like "Qcache_hits"; Variable_name Value Qcache_hits 0 select * from v1; c d select * from v2; c d show status like "Qcache_queries_in_cache"; Variable_name Value Qcache_queries_in_cache 0 show status like "Qcache_inserts"; Variable_name Value Qcache_inserts 0 show status like "Qcache_hits"; Variable_name Value Qcache_hits 0 drop view v1,v2; set query_cache_type=demand; flush status; create view v1 (c,d) as select sql_cache a,b from t1; show status like "Qcache_queries_in_cache"; Variable_name Value Qcache_queries_in_cache 0 show status like "Qcache_inserts"; Variable_name Value Qcache_inserts 0 show status like "Qcache_hits"; Variable_name Value Qcache_hits 0 select * from v1; c d show status like "Qcache_queries_in_cache"; Variable_name Value Qcache_queries_in_cache 1 show status like "Qcache_inserts"; Variable_name Value Qcache_inserts 1 show status like "Qcache_hits"; Variable_name Value Qcache_hits 0 select * from t1; a b show status like "Qcache_queries_in_cache"; Variable_name Value Qcache_queries_in_cache 1 show status like "Qcache_inserts"; Variable_name Value Qcache_inserts 1 show status like "Qcache_hits"; Variable_name Value Qcache_hits 0 select * from v1; c d show status like "Qcache_queries_in_cache"; Variable_name Value Qcache_queries_in_cache 1 show status like "Qcache_inserts"; Variable_name Value Qcache_inserts 1 show status like "Qcache_hits"; Variable_name Value Qcache_hits 1 select * from t1; a b show status like "Qcache_queries_in_cache"; Variable_name Value Qcache_queries_in_cache 1 show status like "Qcache_inserts"; Variable_name Value Qcache_inserts 1 show status like "Qcache_hits"; Variable_name Value Qcache_hits 1 drop view v1; set query_cache_type=default; drop table t1; 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; a 2 3 alter view v1 as select a from t1 where a > 2; select * from v1; a 3 drop view v1; select * from v1; ERROR 42S02: Table 'test.v1' doesn't exist drop table t1; 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; a b drop view v3; drop table t1, t2; set GLOBAL query_cache_size=default;