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https://github.com/MariaDB/server.git
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105 lines
2.9 KiB
Text
105 lines
2.9 KiB
Text
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#Test for max_seeks_for_key#
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--disable_warnings
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drop table if exists t1;
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--enable_warnings
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#########################
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# Creating new table #
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#########################
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CREATE TABLE t1
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(a int auto_increment primary key,
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b char(20)
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);
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--echo '#--------------------FN_DYNVARS_084_01-------------------------#'
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##########################################################
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# Test behavior of variable on new connection # 01 #
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##########################################################
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CONNECT (test_con1,localhost,root,,);
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CONNECTION test_con1;
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# Value of session & global vairable here should be 10
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SELECT @@global.max_seeks_for_key = 10;
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SELECT @@session.max_seeks_for_key = 10;
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# Setting global value of variable and inserting data in table
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SET @@global.max_seeks_for_key = 20;
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SELECT @@global.max_seeks_for_key;
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INSERT into t1(b) values("AREc");
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explain select STRAIGHT_JOIN * from t1,t1 as t2 where t1.b=t2.b;
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# Setting session value of variable and inserting data in table
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SET @@session.max_seeks_for_key = 2;
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SELECT @@session.max_seeks_for_key;
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INSERT into t1(b) values("BREc");
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INSERT into t1(b) values("CRec");
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explain select STRAIGHT_JOIN * from t1,t1 as t2 where t1.b=t2.b;
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--echo '#--------------------FN_DYNVARS_084_02-------------------------#'
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##########################################################
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# Test behavior of variable on new connection # 02 #
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##########################################################
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CONNECT (test_con2,localhost,root,,);
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connection test_con2;
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# Value of session & global vairable here should be 10
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SELECT @@global.max_seeks_for_key = 10;
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SELECT @@session.max_seeks_for_key = 10;
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# Setting global value of variable and inserting data in table
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SET @@global.max_seeks_for_key = 20;
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SELECT @@global.max_seeks_for_key;
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INSERT into t1(b) values("AREc");
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explain select STRAIGHT_JOIN * from t1,t1 as t2 where t1.b=t2.b;
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# Setting session value of variable and inserting data in table
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SET @@session.max_seeks_for_key = 2;
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SELECT @@session.max_seeks_for_key;
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INSERT into t1(b) values("BREc");
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INSERT into t1(b) values("CRec");
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explain select STRAIGHT_JOIN * from t1,t1 as t2 where t1.b=t2.b;
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#####################################################
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# Inserting values in table t and analyzing table #
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#####################################################
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INSERT INTO t1 values(null,"test");
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INSERT INTO t1 VALUES (null,"a"),(null,"a"),(null,"a"),
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(null,"a"),(null,"a"),(null,"a"),(null,"a"),
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(null,"a"),(null,"a"),(null,"a");
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explain SELECT STRAIGHT_JOIN * from t1,t1 as t2 where t1.b=t2.b;
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analyze table t1;
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###################################################################
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# Setting new value for max_seeks_for_key and anaylyzing table #
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###################################################################
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SET MAX_SEEKS_FOR_KEY=1;
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explain select STRAIGHT_JOIN * from t1,t1 as t2 where t1.b=t2.b;
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SET MAX_SEEKS_FOR_KEY=DEFAULT;
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drop table t1;
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