Speed up pbxt.range test a bit

mysql-test/suite/pbxt/r/range.result

@@ -362,6 +362,7 @@ name char(1) not null,
 uid int not null,
 primary key (id),
 index uid_index (uid));
+begin;
 insert into t1(id, uid, name) values(1, 0, ' ');
 insert into t1(uid, name) values(0, ' ');
 insert into t2(uid, name) select uid, name from t1;
@@ -410,6 +411,7 @@ insert into t2(uid, name) values
 insert into t1(uid, name) select uid, name from t2 order by uid;
 delete from t2;
 insert into t2(id, uid, name) select id, uid, name from t1;
+commit;
 select count(*) from t1;
 count(*)
 1026

mysql-test/suite/pbxt/t/range.test

@@ -322,6 +322,7 @@ create table t2 (
   primary key (id),
   index uid_index (uid));
   
+begin;
 insert into t1(id, uid, name) values(1, 0, ' ');
 insert into t1(uid, name) values(0, ' ');
 
@@ -375,6 +376,8 @@ insert into t1(uid, name) select uid, name from t2 order by uid;
 delete from t2;
 insert into t2(id, uid, name) select id, uid, name from t1;
 
+commit;
+
 select count(*) from t1;  
 select count(*) from t2;