Fixed the memory leak issue in ObTempTableAccessVecOp.

src/sql/engine/basic/ob_temp_table_access_vec_op.cpp

@@ -227,6 +227,7 @@ void ObTempTableAccessVecOp::destroy()
 {
   output_exprs_.reset();
   result_info_guard_.reset();
+  interm_result_ids_.reset();
   ObOperator::destroy();
 }
 

src/sql/engine/basic/ob_temp_table_access_vec_op.h

@@ -91,7 +91,7 @@ public:
       is_started_(false),
       result_info_guard_(),
       output_exprs_(exec_ctx.get_allocator()) {}
-  ~ObTempTableAccessVecOp() {}
+  ~ObTempTableAccessVecOp() { destroy(); }
 
   virtual int inner_open() override;
   virtual int inner_rescan() override;