[fix](case) Fix different_serialize_cloud case (apache#59555)

### What problem does this PR solve?

Fix
```
   createMV("create materialized view mv1_1 as select k1,bitmap_intersect(to_bitmap(k2)) from d_table group by k1;")
^^^^^^^^^^^^^^^^^^^^^^^^^^ERROR LINE^^^^^^^^^^^^^^^^^^^^^^^^^^

Exception:
java.sql.SQLException: errCode = 2, detailMessage = Duplicate column name 'k1'
```

Author: deardeng

regression-test/suites/cloud_p0/different_serialize/different_serialize.groovy

@@ -37,12 +37,12 @@ suite ("different_serialize_cloud") {
     sql "insert into d_table select 2,2,2,'b';"
     sql "insert into d_table select 3,3,null,'c';"
 
-    createMV("create materialized view mv1_1 as select k1,bitmap_intersect(to_bitmap(k2)) from d_table group by k1;")
-    createMV("create materialized view mv1 as select k1,bitmap_agg(k2) from d_table group by k1;")
-    createMV("create materialized view mv2 as select k1,map_agg(k2,k3) from d_table group by k1;")
-    createMV("create materialized view mv3 as select k1,array_agg(k2) from d_table group by k1;")
-    createMV("create materialized view mv4 as select k1,collect_list(k2,3) from d_table group by k1;")
-    createMV("create materialized view mv5 as select k1,collect_set(k2,3) from d_table group by k1;")
+    createMV("create materialized view mv1_1 as select k1 as k1_view, bitmap_intersect(to_bitmap(k2)) from d_table group by k1;")
+    createMV("create materialized view mv1 as select k1 as k1_mv1_view, bitmap_agg(k2) from d_table group by k1;")
+    createMV("create materialized view mv2 as select k1 as k1_mv2_view, map_agg(k2,k3) from d_table group by k1;")
+    createMV("create materialized view mv3 as select k1 as k1_mv3_view, array_agg(k2) from d_table group by k1;")
+    createMV("create materialized view mv4 as select k1 as k1_mv4_view, collect_list(k2,3) from d_table group by k1;")
+    createMV("create materialized view mv5 as select k1 as k1_mv5_view, collect_set(k2,3) from d_table group by k1;")
 
     sql "insert into d_table select -4,4,-4,'d';"
     sql "insert into d_table(k4,k2) values('d',4);"