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3a5a0ea392
Although the query cache doesn't support retrieval of statements containing column level access control, it was still possible to cache such statements thus wasting memory. This patch extends the access control check on the target tables to avoid caching a statement with column level restrictions. Views are excepted and can be cached but only retrieved by super user account. mysql-test/t/query_cache_with_views.test: Rename: mysql-test/t/view_query_cache.test -> mysql-test/t/query_cache_with_views.test mysql-test/r/query_cache_with_views.result: Rename: mysql-test/r/view_query_cache.result -> mysql-test/r/query_cache_with_views.result mysql-test/r/query_cache.result: Modified test case to allow caching of views mysql-test/t/query_cache.test: Modified test case to allow caching of views sql/sql_cache.cc: Allow caching of views
196 lines
4.6 KiB
Text
196 lines
4.6 KiB
Text
drop table if exists t1,t2,v1,v2,v3;
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drop view if exists t1,t2,v1,v2,v3;
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set GLOBAL query_cache_size=1355776;
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flush status;
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create table t1 (a int, b int);
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create view v1 (c,d) as select sql_no_cache a,b from t1;
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create view v2 (c,d) as select a+rand(),b from t1;
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 0
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 0
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 0
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select * from v1;
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c d
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select * from v2;
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c d
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 0
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 0
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 0
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select * from v1;
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c d
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select * from v2;
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c d
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 0
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 0
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 0
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drop view v1,v2;
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set query_cache_type=demand;
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flush status;
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create view v1 (c,d) as select sql_cache a,b from t1;
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 0
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 0
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 0
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select * from v1;
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c d
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 1
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 1
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 0
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select * from t1;
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a b
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 1
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 1
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 0
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select * from v1;
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c d
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 1
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 1
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 1
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select * from t1;
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a b
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 1
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 1
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 1
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drop view v1;
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set query_cache_type=default;
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drop table t1;
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create table t1 (a int);
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insert into t1 values (1), (2), (3);
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create view v1 as select a from t1 where a > 1;
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select * from v1;
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a
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2
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3
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alter view v1 as select a from t1 where a > 2;
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select * from v1;
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a
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3
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drop view v1;
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select * from v1;
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ERROR 42S02: Table 'test.v1' doesn't exist
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drop table t1;
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create table t1 (a int, primary key (a), b int);
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create table t2 (a int, primary key (a), b int);
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insert into t2 values (1000, 2000);
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create view v3 (a,b) as select t1.a as a, t2.a as b from t1, t2;
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select * from v3;
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a b
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drop view v3;
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drop table t1, t2;
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create table t1(f1 int);
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insert into t1 values(1),(2),(3);
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create view v1 as select * from t1;
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set query_cache_wlock_invalidate=1;
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lock tables v1 read /*!32311 local */;
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unlock tables;
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set query_cache_wlock_invalidate=default;
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drop view v1;
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drop table t1;
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flush status;
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create table t1 (a int, b int);
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create algorithm=temptable view v1 as select * from t1;
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select * from v1;
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a b
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 1
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 1
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 0
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select * from v1;
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a b
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 1
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 1
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 1
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insert into t1 values (1,1);
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 0
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 1
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 1
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select * from v1;
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a b
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1 1
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select * from v1;
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a b
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1 1
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 1
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 2
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 2
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drop view v1;
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 0
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 2
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 2
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drop table t1;
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set GLOBAL query_cache_size=default;
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