Disable warnings for 'drop if exists' and 'create if not exist' commands

mysql-test/columnstore/devregression/t/mcs7035_regression_bug2976.test

@@ -12,22 +12,27 @@ USE tpch1;
 * Bug 2976.  Lost connection with from clause subselect against MyISAM tables in an InfiniDB instance.
 */
 
+--disable_warnings
 drop table if exists a;
+--disable_warnings
 drop table if exists b;
 create table a (c1 int)engine=myisam;
 create table b (c2 int)engine=myisam;
 insert into a values (1), (2);
 insert into b values (1), (2);
 select * from a, (select * from b) x;
+--disable_warnings
 drop table a; 
 drop table b;
-
+--enable_warnings
 /*
 * Skinit example. 
 */
+--disable_warnings
 drop table if exists shipamounts;
 drop table if exists ship1;
 drop table if exists ship2;
+--enable_warnings
 
 CREATE TABLE `shipamounts` (
   `OrderNum` varchar(50) DEFAULT NULL,
@@ -95,19 +100,22 @@ SELECT s.OrderNum, s.OrderLine, s.ShippingAmount, s.ShippingOrderAmount,
          FROM ship2 GROUP BY OrderNum
      ) AS total ON s.OrderNum = total.OrderNum;
 
+--disable_warnings
 drop table if exists shipamounts;
 drop table if exists ship1;
 drop table if exists ship2;
-
+--enable_warnings
 /*
 * Lurn India example.
 */
+--disable_warnings
 drop table if exists users;
 drop table if exists user_login_log;
 drop table if exists user_groups;
 drop table if exists user_types;
 drop table if exists system;
 drop table if exists user_system;
+--enable_warnings
 
 create table users(
 	id int,
@@ -183,11 +191,13 @@ AND u.status IN ('active')
 AND ug.start_date BETWEEN '2010-06-01' AND '2010-06-30'
 ORDER BY DATE(ug.start_date) DESC, u.users_id DESC;
 
+--disable_warnings
 drop table if exists users;
 drop table if exists user_login_log;
 drop table if exists user_groups;
 drop table if exists user_types;
 drop table if exists system;
 drop table if exists user_system;
+--enable_warnings
 #