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drop table if exists t1, t2; set GLOBAL query_cache_type=on; Warnings: Warning 1287 '@@query_cache_type' is deprecated and will be removed in a future release. set GLOBAL query_cache_size=1355776; Warnings: Warning 1287 '@@query_cache_size' is deprecated and will be removed in a future release. reset query cache; Warnings: Warning 1681 'RESET QUERY CACHE' is deprecated and will be removed in a future release. flush status; set GLOBAL query_cache_type=on; Warnings: Warning 1287 '@@query_cache_type' is deprecated and will be removed in a future release. set GLOBAL query_cache_size=1355776; Warnings: Warning 1287 '@@query_cache_size' is deprecated and will be removed in a future release. reset query cache; Warnings: Warning 1681 'RESET QUERY CACHE' is deprecated and will be removed in a future release. flush status; create table t1 (a int) engine=ndbcluster; create table t2 (a int) engine=ndbcluster; insert into t1 value (2); insert into t2 value (3); select * from t1; a 2 select * from t2; a 3 show status like "Qcache_queries_in_cache"; Variable_name Value Qcache_queries_in_cache 2 show status like "Qcache_inserts"; Variable_name Value Qcache_inserts 2 show status like "Qcache_hits"; Variable_name Value Qcache_hits 0 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 t1; a 2 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 update t1 set a=3 where a=2; show status like "Qcache_queries_in_cache"; Variable_name Value Qcache_queries_in_cache 2 show status like "Qcache_inserts"; Variable_name Value Qcache_inserts 2 show status like "Qcache_hits"; Variable_name Value Qcache_hits 0 select * from t1; a 3 show status like "Qcache_queries_in_cache"; Variable_name Value Qcache_queries_in_cache 2 show status like "Qcache_inserts"; Variable_name Value Qcache_inserts 3 show status like "Qcache_hits"; Variable_name Value Qcache_hits 0 drop table t1, t2; set GLOBAL query_cache_size=0; Warnings: Warning 1287 '@@query_cache_size' is deprecated and will be removed in a future release. set GLOBAL query_cache_size=0; Warnings: Warning 1287 '@@query_cache_size' is deprecated and will be removed in a future release.