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P_S 5.7.28
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@ -3,21 +3,27 @@ drop table if exists t1;
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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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SET GLOBAL query_cache_size=1355776;
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Warnings:
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Warning 1287 '@@query_cache_size' is deprecated and will be removed in a future release.
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flush query cache;
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Warnings:
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Warning 1681 'FLUSH QUERY CACHE' is deprecated and will be removed in a future release.
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reset query cache;
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Warnings:
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Warning 1681 'RESET QUERY CACHE' is deprecated and will be removed in a future release.
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flush status;
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select * from t1;
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a
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1
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2
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3
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show status like "Qcache_queries_in_cache";
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show global 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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show global 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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show global 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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@ -25,13 +31,13 @@ a
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1
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2
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3
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show status like "Qcache_queries_in_cache";
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show global 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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show global 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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show global status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 1
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select spins from performance_schema.events_waits_current order by event_name limit 1;
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@ -40,13 +46,15 @@ NULL
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select * from performance_schema.setup_timers where name='wait';
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NAME TIMER_NAME
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wait {CYCLE_OR_NANOSECOND}
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show status like "Qcache_queries_in_cache";
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Warnings:
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Warning 1681 'performance_schema.setup_timers' is deprecated and will be removed in a future release.
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show global 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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show global 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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show global status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 1
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select spins from performance_schema.events_waits_current order by event_name limit 1;
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@ -55,13 +63,15 @@ NULL
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select * from performance_schema.setup_timers where name='wait';
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NAME TIMER_NAME
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wait {CYCLE_OR_NANOSECOND}
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show status like "Qcache_queries_in_cache";
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Warnings:
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Warning 1681 'performance_schema.setup_timers' is deprecated and will be removed in a future release.
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show global 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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show global 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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show global status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 1
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SET GLOBAL query_cache_size=@save_query_cache_size;
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