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836 lines
22 KiB
Plaintext
836 lines
22 KiB
Plaintext
-- source include/have_query_cache.inc
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#
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# Tests with query cache
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#
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set GLOBAL query_cache_size=1355776;
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# Reset query cache variables.
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flush query cache; # This crashed in some versions
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flush query cache; # This crashed in some versions
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reset query cache;
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flush status;
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--disable_warnings
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drop table if exists t1,t2,t3,t4,t11,t21;
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drop database if exists mysqltest;
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--enable_warnings
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#
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# First simple test
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#
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create table t1 (a int not null);
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insert into t1 values (1),(2),(3);
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select * from t1;
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select * from t1;
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select sql_no_cache * from t1;
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select length(now()) from t1;
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# Only check the variables that are independent of the machine and startup
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# options
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show status like "Qcache_queries_in_cache";
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show status like "Qcache_inserts";
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show status like "Qcache_hits";
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drop table t1;
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show status like "Qcache_queries_in_cache";
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#
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# MERGE TABLES with INSERT/UPDATE and DELETE
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#
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create table t1 (a int not null);
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insert into t1 values (1),(2),(3);
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create table t2 (a int not null);
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insert into t2 values (4),(5),(6);
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create table t3 (a int not null) engine=MERGE UNION=(t1,t2) INSERT_METHOD=FIRST;
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# insert
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select * from t3;
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select * from t3;
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show status like "Qcache_hits";
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show status like "Qcache_queries_in_cache";
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insert into t2 values (7);
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show status like "Qcache_queries_in_cache";
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select * from t1;
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select * from t1;
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show status like "Qcache_hits";
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show status like "Qcache_queries_in_cache";
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insert into t3 values (8);
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show status like "Qcache_queries_in_cache";
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# update
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select * from t3;
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show status like "Qcache_queries_in_cache";
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update t2 set a=9 where a=7;
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show status like "Qcache_queries_in_cache";
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select * from t1;
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show status like "Qcache_queries_in_cache";
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update t3 set a=10 where a=1;
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show status like "Qcache_queries_in_cache";
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#delete
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select * from t3;
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show status like "Qcache_queries_in_cache";
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delete from t2 where a=9;
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show status like "Qcache_queries_in_cache";
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select * from t1;
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show status like "Qcache_queries_in_cache";
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delete from t3 where a=10;
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show status like "Qcache_queries_in_cache";
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drop table t1, t2, t3;
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#
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# FLUSH QUERY CACHE
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#
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create table t1 (a int not null);
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insert into t1 values (1),(2),(3);
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create table t2 (a int not null);
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insert into t2 values (1),(2),(3);
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select * from t1;
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select * from t2;
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insert into t1 values (4);
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show status like "Qcache_free_blocks";
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flush query cache;
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show status like "Qcache_free_blocks";
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drop table t1, t2;
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# With join results...
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create table t1 (a text not null);
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create table t11 (a text not null);
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create table t2 (a text not null);
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create table t21 (a text not null);
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create table t3 (a text not null);
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insert into t1 values("1111111111111111111111111111111111111111111111111111");
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insert into t2 select * from t1;
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insert into t1 select * from t2;
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insert into t2 select * from t1;
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insert into t1 select * from t2;
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insert into t2 select * from t1;
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insert into t1 select * from t2;
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insert into t2 select * from t1;
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insert into t1 select * from t2;
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insert into t2 select * from t1;
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insert into t1 select * from t2;
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insert into t2 select * from t1;
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insert into t1 select * from t2;
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insert into t2 select * from t1;
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insert into t1 select * from t2;
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insert into t2 select * from t1;
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# t11 and t21 must be over 4Kb (QUERY_CACHE_MIN_RESULT_DATA_SIZE)
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insert into t11 select * from t1;
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insert into t21 select * from t1;
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insert into t1 select * from t2;
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insert into t2 select * from t1;
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insert into t1 select * from t2;
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#results of t3 must be > 0.5Mb
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insert into t3 select * from t1;
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insert into t3 select * from t2;
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insert into t3 select * from t1;
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disable_result_log;
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select * from t11;
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select * from t21;
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enable_result_log;
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show status like "Qcache_total_blocks";
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show status like "Qcache_free_blocks";
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disable_result_log;
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insert into t11 values("");
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select * from t3;
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enable_result_log;
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show status like "Qcache_total_blocks";
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show status like "Qcache_free_blocks";
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flush query cache;
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show status like "Qcache_total_blocks";
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show status like "Qcache_free_blocks";
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drop table t1, t2, t3, t11, t21;
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#
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# SELECT SQL_CACHE ...
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#
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set query_cache_type=demand;
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create table t1 (a int not null);
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insert into t1 values (1),(2),(3);
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select * from t1;
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show status like "Qcache_queries_in_cache";
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select sql_cache * from t1 union select * from t1;
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set query_cache_type=2;
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select sql_cache * from t1 union select * from t1;
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select * from t1 union select sql_cache * from t1;
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show status like "Qcache_hits";
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show status like "Qcache_queries_in_cache";
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set query_cache_type=on;
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#
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# RESET QUERY CACHE
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#
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reset query cache;
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show status like "Qcache_queries_in_cache";
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#
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# SELECT SQL_NO_CACHE
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#
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select sql_no_cache * from t1;
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show status like "Qcache_queries_in_cache";
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drop table t1;
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#
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# Check that queries that uses NOW(), LAST_INSERT_ID()... are not cached.
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#
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create table t1 (a text not null);
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select CONNECTION_ID() from t1;
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#GET_LOCK
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#RELEASE_LOCK
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#LOAD_FILE
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select FOUND_ROWS();
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select NOW() from t1;
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select CURDATE() from t1;
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select CURTIME() from t1;
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select DATABASE() from t1;
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select ENCRYPT("test") from t1;
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select LAST_INSERT_ID() from t1;
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select RAND() from t1;
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select UNIX_TIMESTAMP() from t1;
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select USER() from t1;
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select CURRENT_USER() from t1;
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select benchmark(1,1) from t1;
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explain extended select benchmark(1,1) from t1;
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show status like "Qcache_queries_in_cache";
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#
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# Tests when the cache is filled
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#
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create table t2 (a text not null);
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insert into t1 values("1111111111111111111111111111111111111111111111111111");
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insert into t2 select * from t1;
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insert into t1 select * from t2; # 2
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insert into t2 select * from t1; # 3
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insert into t1 select * from t2; # 5
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insert into t2 select * from t1; # 8
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insert into t1 select * from t2; # 13
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insert into t2 select * from t1; # 21
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insert into t1 select * from t2; # 34
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insert into t2 select * from t1; # 55
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insert into t1 select * from t2; # 89
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insert into t2 select * from t1; # 144
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insert into t1 select * from t2; # 233
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insert into t2 select * from t1; # 357
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insert into t1 select * from t2; # 610
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insert into t2 select * from t1; # 987
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insert into t1 select * from t2; # 1597
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insert into t2 select * from t1; # 2584
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insert into t1 select * from t2; # 4181
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show status like "Qcache_hits";
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show status like "Qcache_lowmem_prunes";
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disable_result_log;
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select a as a1, a as a2 from t1;
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select a as a2, a as a3 from t1;
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select a as a3, a as a4 from t1;
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# next query must be out of 1Mb cache
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select a as a1, a as a2 from t1;
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enable_result_log;
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show status like "Qcache_hits";
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show status like "Qcache_queries_in_cache";
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show status like "Qcache_lowmem_prunes";
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reset query cache;
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#
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# Query bigger then query_cache_limit
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#
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insert into t2 select * from t1;
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insert into t1 select * from t2;
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insert into t2 select * from t1;
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insert into t1 select * from t2;
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insert into t2 select * from t1;
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insert into t1 select * from t2;
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insert into t2 select * from t1;
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insert into t1 select * from t2;
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insert into t2 select * from t1;
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insert into t1 select * from t2;
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disable_result_log;
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select * from t1;
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enable_result_log;
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show status like "Qcache_queries_in_cache";
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drop table t1,t2;
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#
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# noncachable ODBC work around (and prepare cache for drop database)
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#
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create database mysqltest;
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create table mysqltest.t1 (i int not null auto_increment, a int, primary key (i));
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insert into mysqltest.t1 (a) values (1);
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select * from mysqltest.t1 where i is null;
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#
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# drop db
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#
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create table t1(a int);
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select * from t1;
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show status like "Qcache_queries_in_cache";
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select * from mysqltest.t1;
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show status like "Qcache_queries_in_cache";
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drop database mysqltest;
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show status like "Qcache_queries_in_cache";
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drop table t1;
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#
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# Charset convertion (cp1251_koi8 always present)
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#
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create table t1 (a char(1) not null collate koi8r_general_ci);
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insert into t1 values(_koi8r"<22>");
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set CHARACTER SET koi8r;
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select * from t1;
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set CHARACTER SET cp1251_koi8;
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select * from t1;
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set CHARACTER SET DEFAULT;
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show status like "Qcache_queries_in_cache";
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show status like "Qcache_hits";
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drop table t1;
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# The following tests can't be done as the values differen on 32 and 64 bit
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# machines :(
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#show variables like "query_cache_size";
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#show status like "Qcache_free_memory";
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#
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# same tables in different db
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#
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create database if not exists mysqltest;
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create table mysqltest.t1 (i int not null);
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create table t1 (i int not null);
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insert into mysqltest.t1 (i) values (1);
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insert into t1 (i) values (2);
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select * from t1;
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use mysqltest;
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select * from t1;
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select * from t1;
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use test;
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select * from t1;
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show status like "Qcache_queries_in_cache";
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show status like "Qcache_hits";
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drop database mysqltest;
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drop table t1;
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#
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# FOUND_ROWS()
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#
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create table t1 (i int not null);
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insert into t1 (i) values (1),(2),(3),(4);
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select SQL_CALC_FOUND_ROWS * from t1 limit 2;
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select FOUND_ROWS();
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show status like "Qcache_hits";
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show status like "Qcache_queries_in_cache";
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select * from t1 where i=1;
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select FOUND_ROWS();
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show status like "Qcache_hits";
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show status like "Qcache_queries_in_cache";
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select SQL_CALC_FOUND_ROWS * from t1 limit 2;
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select FOUND_ROWS();
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show status like "Qcache_hits";
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show status like "Qcache_queries_in_cache";
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select * from t1 where i=1;
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select FOUND_ROWS();
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show status like "Qcache_hits";
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show status like "Qcache_queries_in_cache";
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drop table t1;
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#
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# Test insert delayed
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#
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flush query cache;
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reset query cache;
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create table t1 (a int not null);
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insert into t1 values (1),(2),(3);
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select * from t1;
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select * from t1;
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show status like "Qcache_queries_in_cache";
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insert delayed into t1 values (4);
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--sleep 5 # Wait for insert delayed to be executed.
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select a from t1;
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show status like "Qcache_queries_in_cache";
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drop table t1;
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show status like "Qcache_queries_in_cache";
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#
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# Test of min result data unit size changing
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#
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show global variables like "query_cache_min_res_unit";
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set GLOBAL query_cache_min_res_unit=1001;
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show global variables like "query_cache_min_res_unit";
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create table t1 (a int not null);
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insert into t1 values (1),(2),(3);
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create table t2 (a int not null);
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insert into t2 values (1),(2),(3);
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select * from t1;
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select * from t1;
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select * from t2;
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select * from t2;
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show status like "Qcache_hits";
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show status like "Qcache_queries_in_cache";
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drop table t1;
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select a from t2;
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select a from t2;
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show status like "Qcache_hits";
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show status like "Qcache_queries_in_cache";
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drop table t2;
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set GLOBAL query_cache_min_res_unit=default;
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show global variables like "query_cache_min_res_unit";
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#
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# Case sensitive test
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#
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create table t1 (a int not null);
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insert into t1 values (1);
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select "aaa" from t1;
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select "AAA" from t1;
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drop table t1;
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#
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# Test of query cache resizing
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#
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create table t1 (a int);
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set GLOBAL query_cache_size=1000;
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show global variables like "query_cache_size";
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select * from t1;
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set GLOBAL query_cache_size=1024;
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show global variables like "query_cache_size";
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select * from t1;
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set GLOBAL query_cache_size=10240;
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show global variables like "query_cache_size";
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select * from t1;
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set GLOBAL query_cache_size=20480;
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show global variables like "query_cache_size";
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select * from t1;
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set GLOBAL query_cache_size=40960;
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show global variables like "query_cache_size";
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select * from t1;
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set GLOBAL query_cache_size=51200;
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show global variables like "query_cache_size";
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select * from t1;
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set GLOBAL query_cache_size=61440;
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show global variables like "query_cache_size";
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select * from t1;
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set GLOBAL query_cache_size=81920;
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show global variables like "query_cache_size";
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select * from t1;
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set GLOBAL query_cache_size=102400;
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show global variables like "query_cache_size";
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select * from t1;
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drop table t1;
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#
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# Temporary tables
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#
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set GLOBAL query_cache_size=1048576;
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create table t1 (i int not null);
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create table t2 (i int not null);
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select * from t1;
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show status like "Qcache_queries_in_cache";
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create temporary table t3 (i int not null);
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select * from t2;
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show status like "Qcache_queries_in_cache";
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select * from t3;
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show status like "Qcache_queries_in_cache";
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update t1 set i=(select distinct 1 from (select * from t2) a);
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drop table t1, t2, t3;
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#
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# system databse test
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#
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use mysql;
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disable_result_log;
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select * from db;
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enable_result_log;
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show status like "Qcache_queries_in_cache";
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use test;
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disable_result_log;
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select * from mysql.db;
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enable_result_log;
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show status like "Qcache_queries_in_cache";
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#
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# simple rename test
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#
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create table t1(id int auto_increment primary key);
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insert into t1 values (NULL), (NULL), (NULL);
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select * from t1 where id=2;
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alter table t1 rename to t2;
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-- error 1146
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select * from t1 where id=2;
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drop table t2;
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-- error 1146
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select * from t1 where id=2;
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#
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# Load data invalidation test
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#
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create table t1 (word char(20) not null);
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select * from t1;
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show status like "Qcache_queries_in_cache";
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--replace_result $MYSQL_TEST_DIR TEST_DIR
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eval load data infile '$MYSQL_TEST_DIR/std_data/words.dat' into table t1;
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show status like "Qcache_queries_in_cache";
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select count(*) from t1;
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drop table t1;
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#
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# INTO OUTFILE/DUMPFILE test
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#
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create table t1 (a int);
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insert into t1 values (1),(2),(3);
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show status like "Qcache_queries_in_cache";
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select * from t1 into outfile "query_cache.out.file";
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--error 1086
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select * from t1 into outfile "query_cache.out.file";
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select * from t1 limit 1 into dumpfile "query_cache.dump.file";
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show status like "Qcache_queries_in_cache";
|
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drop table t1;
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#
|
||
# test of SQL_SELECT_LIMIT
|
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#
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create table t1 (a int);
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insert into t1 values (1),(2);
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show status like "Qcache_queries_in_cache";
|
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select * from t1;
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SET OPTION SQL_SELECT_LIMIT=1;
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select * from t1;
|
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show status like "Qcache_queries_in_cache";
|
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SET OPTION SQL_SELECT_LIMIT=DEFAULT;
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drop table t1;
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#
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# 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;
|
||
|
||
#
|
||
# WRITE LOCK & QC
|
||
#
|
||
set query_cache_wlock_invalidate=1;
|
||
create table t1 (a int not null);
|
||
create table t2 (a int not null);
|
||
select * from t1;
|
||
select * from t2;
|
||
show status like "Qcache_queries_in_cache";
|
||
lock table t1 write, t2 read;
|
||
show status like "Qcache_queries_in_cache";
|
||
unlock table;
|
||
drop table t1,t2;
|
||
set query_cache_wlock_invalidate=default;
|
||
|
||
#
|
||
# hiding real table stored in query cache by temporary table
|
||
#
|
||
CREATE TABLE t1 (id INT PRIMARY KEY);
|
||
insert into t1 values (1),(2),(3);
|
||
select * from t1;
|
||
create temporary table t1 (a int not null auto_increment
|
||
primary key);
|
||
select * from t1;
|
||
drop table t1;
|
||
drop table t1;
|
||
|
||
#
|
||
# Test character set related variables:
|
||
# character_set_result
|
||
# character_set_client
|
||
# charactet_set_connection/collation_connection
|
||
# If at least one of the above variables has changed,
|
||
# the cached query can't be reused. In the below test
|
||
# absolutely the same query is used several times,
|
||
# SELECT should fetch different results for every instance.
|
||
# No hits should be produced.
|
||
# New cache entry should appear for every SELECT.
|
||
#
|
||
SET NAMES koi8r;
|
||
CREATE TABLE t1 (a char(1) character set koi8r);
|
||
INSERT INTO t1 VALUES (_koi8r'<27>'),(_koi8r'<27>');
|
||
#
|
||
# Run select
|
||
#
|
||
SELECT a,'<27>','<27>'='<27>' FROM t1;
|
||
show status like "Qcache_hits";
|
||
show status like "Qcache_queries_in_cache";
|
||
#
|
||
# Change collation_connection and run the same query again
|
||
#
|
||
set collation_connection=koi8r_bin;
|
||
SELECT a,'<27>','<27>'='<27>' FROM t1;
|
||
show status like "Qcache_hits";
|
||
show status like "Qcache_queries_in_cache";
|
||
#
|
||
# Now change character_set_client and run the same query again
|
||
#
|
||
set character_set_client=cp1251;
|
||
SELECT a,'<27>','<27>'='<27>' FROM t1;
|
||
show status like "Qcache_hits";
|
||
show status like "Qcache_queries_in_cache";
|
||
#
|
||
# And finally change character_set_results and run the same query again
|
||
#
|
||
set character_set_results=cp1251;
|
||
SELECT a,'<27>','<27>'='<27>' FROM t1;
|
||
show status like "Qcache_hits";
|
||
show status like "Qcache_queries_in_cache";
|
||
|
||
DROP TABLE t1;
|
||
|
||
#
|
||
# DROP current database test
|
||
#
|
||
CREATE TABLE t1 (a int(1));
|
||
CREATE DATABASE mysqltest;
|
||
USE mysqltest;
|
||
DROP DATABASE mysqltest;
|
||
SELECT * FROM test.t1;
|
||
USE test;
|
||
DROP TABLE t1;
|
||
|
||
#
|
||
# charset with NULL
|
||
#
|
||
set character_set_results=null;
|
||
select @@character_set_results;
|
||
set character_set_results=default;
|
||
#
|
||
# query cache and environment variables
|
||
#
|
||
# max_sort_length
|
||
set GLOBAL query_cache_size=1355776;
|
||
create table t1 (id int auto_increment primary key, c char(25));
|
||
insert into t1 set c = repeat('x',24);
|
||
insert into t1 set c = concat(repeat('x',24),'x');
|
||
insert into t1 set c = concat(repeat('x',24),'w');
|
||
insert into t1 set c = concat(repeat('x',24),'y');
|
||
set max_sort_length=200;
|
||
select c from t1 order by c, id;
|
||
reset query cache;
|
||
set max_sort_length=20;
|
||
select c from t1 order by c, id;
|
||
set max_sort_length=200;
|
||
select c from t1 order by c, id;
|
||
set max_sort_length=default;
|
||
# sql_mode
|
||
select '1' || '3' from t1;
|
||
set SQL_MODE=oracle;
|
||
select '1' || '3' from t1;
|
||
set SQL_MODE=default;
|
||
drop table t1;
|
||
# group_concat_max_len
|
||
create table t1 (a varchar(20), b int);
|
||
insert into t1 values ('12345678901234567890', 1);
|
||
set group_concat_max_len=10;
|
||
select group_concat(a) FROM t1 group by b;
|
||
set group_concat_max_len=1024;
|
||
select group_concat(a) FROM t1 group by b;
|
||
set group_concat_max_len=default;
|
||
drop table t1;
|
||
|
||
# comments before command
|
||
#
|
||
create table t1 (a int);
|
||
show status like "Qcache_queries_in_cache";
|
||
show status like "Qcache_inserts";
|
||
show status like "Qcache_hits";
|
||
/**/ select * from t1;
|
||
/**/ select * from t1;
|
||
show status like "Qcache_queries_in_cache";
|
||
show status like "Qcache_inserts";
|
||
show status like "Qcache_hits";
|
||
|
||
#
|
||
# Keep things tidy
|
||
#
|
||
DROP TABLE t1;
|
||
SET GLOBAL query_cache_size=0;
|
||
|
||
#
|
||
# Information schema & query cache test
|
||
#
|
||
SET SESSION query_cache_type = 2;
|
||
create table t1(a int);
|
||
select table_name from information_schema.tables
|
||
where table_schema="test";
|
||
drop table t1;
|
||
select table_name from information_schema.tables
|
||
where table_schema="test";
|
||
# Bug #8480: REPAIR TABLE needs to flush the table from the query cache
|
||
SET SESSION query_cache_type = 1;
|
||
set global query_cache_size=1024*1024;
|
||
flush query cache;
|
||
create table t1 ( a int );
|
||
insert into t1 values (1);
|
||
select a from t1;
|
||
select a from t1;
|
||
show status like 'qcache_queries_in_cache';
|
||
repair table t1;
|
||
show status like 'qcache_queries_in_cache';
|
||
drop table t1;
|
||
|
||
# Bug #9549: Make sure cached queries that span more than one cache block
|
||
# are handled properly in the embedded server.
|
||
|
||
# We just want a small query cache, so we can fragment it easily
|
||
set GLOBAL query_cache_size=64*1024;
|
||
# This actually gives us a usable cache size of about 48K
|
||
|
||
# Each table is about 14K
|
||
create table t1 (a text);
|
||
insert into t1 values (repeat('abcdefghijklmnopqrstuvwxyz', 550));
|
||
create table t2 (a text);
|
||
insert into t2 values (repeat('ijklmnopqrstuvwxyzabcdefgh', 550));
|
||
|
||
# Load a query from each table into the query cache
|
||
--disable_result_log
|
||
select a from t1; # Q1
|
||
select a from t2; # Q2
|
||
--enable_result_log
|
||
show status like 'Qcache_%_blocks';
|
||
|
||
# Now the cache looks like (14K for Q1)(14K for Q2)(20K free)
|
||
|
||
# Flush Q1 from the cache by adding an out-of-order chunk to t1
|
||
insert into t1 select reverse(a) from t1;
|
||
show status like 'Qcache_%_blocks';
|
||
|
||
# Now the cache looks like (14K free)(14K for Q2)(20K free)
|
||
|
||
# Load our new data into the query cache
|
||
--disable_result_log
|
||
select a from t1; # Q3
|
||
--enable_result_log
|
||
show status like 'Qcache_%_blocks';
|
||
|
||
# Now the cache should be like (14K for Q3)(14K for Q2)(14K for Q3)(6K free)
|
||
|
||
# Note that Q3 is split across two chunks!
|
||
|
||
# Load Q3 from the cache, and actually pay attention to the results
|
||
select a from t1;
|
||
|
||
flush query cache;
|
||
|
||
drop table t1, t2;
|
||
|
||
#
|
||
# Query with warning prohibited to query cache (BUG#9414)
|
||
#
|
||
flush status;
|
||
CREATE TABLE t1 (
|
||
`date` datetime NOT NULL default '0000-00-00 00:00:00',
|
||
KEY `date` (`date`)
|
||
) ENGINE=MyISAM;
|
||
|
||
INSERT INTO t1 VALUES ('20050326');
|
||
INSERT INTO t1 VALUES ('20050325');
|
||
SELECT COUNT(*) FROM t1 WHERE date BETWEEN '20050326' AND '20050327 0:0:0';
|
||
SELECT COUNT(*) FROM t1 WHERE date BETWEEN '20050326' AND '20050328 0:0:0';
|
||
SELECT COUNT(*) FROM t1 WHERE date BETWEEN '20050326' AND '20050327 0:0:0';
|
||
show status like "Qcache_queries_in_cache";
|
||
show status like "Qcache_inserts";
|
||
show status like "Qcache_hits";
|
||
drop table t1;
|
||
|
||
#
|
||
# queries with subquery in the FROM clause (BUG#11522)
|
||
#
|
||
create table t1 (a int);
|
||
insert into t1 values (1);
|
||
reset query cache;
|
||
flush status;
|
||
select * from (select * from t1) a;
|
||
show status like "Qcache_queries_in_cache";
|
||
show status like "Qcache_inserts";
|
||
show status like "Qcache_hits";
|
||
select * from (select * from t1) a;
|
||
show status like "Qcache_queries_in_cache";
|
||
show status like "Qcache_inserts";
|
||
show status like "Qcache_hits";
|
||
insert into t1 values (2);
|
||
show status like "Qcache_queries_in_cache";
|
||
show status like "Qcache_inserts";
|
||
show status like "Qcache_hits";
|
||
select * from (select * from t1) a;
|
||
show status like "Qcache_queries_in_cache";
|
||
show status like "Qcache_inserts";
|
||
show status like "Qcache_hits";
|
||
drop table t1;
|
||
|
||
#
|
||
# SP cursors and selects with query cache (BUG#9715)
|
||
#
|
||
create table t1 (a int);
|
||
insert into t1 values (1),(2);
|
||
|
||
delimiter //;
|
||
CREATE PROCEDURE `p1`()
|
||
begin
|
||
Declare c1 cursor for select a from t1;
|
||
open c1;
|
||
select * from t1;
|
||
end//
|
||
call p1()//
|
||
drop procedure p1;
|
||
|
||
create function f1() returns int
|
||
begin
|
||
Declare var1 int;
|
||
select max(a) from t1 into var1;
|
||
return var1;
|
||
end//
|
||
create procedure `p1`()
|
||
begin
|
||
select a, f1() from t1;
|
||
end//
|
||
call p1()//
|
||
drop procedure p1//
|
||
|
||
drop table t1//
|
||
delimiter ;//
|
||
|
||
set GLOBAL query_cache_size=0;
|