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reset query cache;
flush status;
drop table if exists t1;
create table t1 (a int not null);
insert into t1 values (1),(2),(3);
select * from t1;
a
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select * from t1;
a
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select sql_no_cache * from t1;
a
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select length(now()) from t1;
length(now())
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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 table t1;
show status like "Qcache_queries_in_cache";
Variable_name Value
Qcache_queries_in_cache 0
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