title: calibrating the query optimizer cost model of iro-db , an object-oriented federated database system g gardarin , f sha , z tang vldb 1996. authors: nan. venue: nan. year: nan
title: calibrating the query optimizer cost model of iroâ ?? db an object oriented federated database system. authors: g gardarin. venue: proceedings of the 22 thconference on very large data bases. year: nan