Update tests: log_slow_verbosity now supports query_plan=explan.

mysql-test/suite/sys_vars/r/log_slow_verbosity_basic.result

@@ -37,6 +37,22 @@ set session log_slow_verbosity=3;
 select @@session.log_slow_verbosity;
 @@session.log_slow_verbosity
 innodb,query_plan
+set session log_slow_verbosity=4;
+select @@session.log_slow_verbosity;
+@@session.log_slow_verbosity
+explain
+set session log_slow_verbosity=5;
+select @@session.log_slow_verbosity;
+@@session.log_slow_verbosity
+innodb,explain
+set session log_slow_verbosity=6;
+select @@session.log_slow_verbosity;
+@@session.log_slow_verbosity
+query_plan,explain
+set session log_slow_verbosity=7;
+select @@session.log_slow_verbosity;
+@@session.log_slow_verbosity
+innodb,query_plan,explain
 set session log_slow_verbosity='innodb';
 select @@session.log_slow_verbosity;
 @@session.log_slow_verbosity
@@ -49,6 +65,14 @@ set session log_slow_verbosity='innodb,query_plan';
 select @@session.log_slow_verbosity;
 @@session.log_slow_verbosity
 innodb,query_plan
+set session log_slow_verbosity='explain';
+select @@session.log_slow_verbosity;
+@@session.log_slow_verbosity
+explain
+set session log_slow_verbosity='innodb,query_plan,explain';
+select @@session.log_slow_verbosity;
+@@session.log_slow_verbosity
+innodb,query_plan,explain
 set session log_slow_verbosity='';
 select @@session.log_slow_verbosity;
 @@session.log_slow_verbosity
@@ -59,6 +83,6 @@ set session log_slow_verbosity=1e1;
 ERROR 42000: Incorrect argument type to variable 'log_slow_verbosity'
 set session log_slow_verbosity="foo";
 ERROR 42000: Variable 'log_slow_verbosity' can't be set to the value of 'foo'
-set session log_slow_verbosity=4;
-ERROR 42000: Variable 'log_slow_verbosity' can't be set to the value of '4'
+set session log_slow_verbosity=8;
+ERROR 42000: Variable 'log_slow_verbosity' can't be set to the value of '8'
 SET @@global.log_slow_verbosity = @start_global_value;

mysql-test/suite/sys_vars/t/log_slow_verbosity_basic.test

@@ -29,12 +29,26 @@ set session log_slow_verbosity=2;
 select @@session.log_slow_verbosity;
 set session log_slow_verbosity=3;
 select @@session.log_slow_verbosity;
+set session log_slow_verbosity=4;
+select @@session.log_slow_verbosity;
+set session log_slow_verbosity=5;
+select @@session.log_slow_verbosity;
+set session log_slow_verbosity=6;
+select @@session.log_slow_verbosity;
+set session log_slow_verbosity=7;
+select @@session.log_slow_verbosity;
+
+
 set session log_slow_verbosity='innodb';
 select @@session.log_slow_verbosity;
 set session log_slow_verbosity='query_plan';
 select @@session.log_slow_verbosity;
 set session log_slow_verbosity='innodb,query_plan';
 select @@session.log_slow_verbosity;
+set session log_slow_verbosity='explain';
+select @@session.log_slow_verbosity;
+set session log_slow_verbosity='innodb,query_plan,explain';
+select @@session.log_slow_verbosity;
 set session log_slow_verbosity='';
 select @@session.log_slow_verbosity;
 
@@ -48,6 +62,6 @@ set session log_slow_verbosity=1e1;
 --error ER_WRONG_VALUE_FOR_VAR
 set session log_slow_verbosity="foo";
 --error ER_WRONG_VALUE_FOR_VAR
-set session log_slow_verbosity=4;
+set session log_slow_verbosity=8;
 
 SET @@global.log_slow_verbosity = @start_global_value;