*** pool_rewrite_query.c.orig	2009-08-22 13:04:21.000000000 +0900
--- pool_rewrite_query.c	2010-03-09 10:13:13.000000000 +0900
***************
*** 82,94 ****
--- 82,100 ----
  
  			if(!obj)
  			{
+ pool_debug("getInsertRule chk:TypeCast");
+ /*
  				return -1;
+ */
  			}
  		}
  
  		if(obj && !IsA(obj, A_Const))
  		{
+ pool_debug("getInsertRule chk:A_Const");
+ /*
  			return -1;
+ */
  		}
  
   		if (loop_counter == div_key_num)
***************
*** 462,467 ****
--- 468,483 ----
  			/* Improve UpdateStmt for complex query */
  			break;
  #endif
+ 		case T_VariableSetStmt:
+ 			pool_debug("rewrite_query_stmt: VariableSetStmt");
+ 			POOL_CONNECTION_POOL_SLOT *system_db = pool_system_db_connection();
+ 			message->type = node->type;
+ 
+ 			POOL_SELECT_RESULT *res;
+ 			message->status = do_query(system_db->con,frontend->buf2,&res,system_db->sp->major);
+ 			free_select_result(res);
+ 
+ 			break;
  		default:
  			message->type = node->type;
  			message->status = POOL_CONTINUE;