title: the aqua approximate query answering system s acharya , p gibbons , v poosala , s ramaswamy sigmod conference 1999. authors: nan. venue: nan. year: nan
title: the aqua approximate query answering system sa cr941 , pb gibbons , v poosaia , s ramaswamy. authors: nan. venue: proc . acm sigmod lnrernational co @ on management of data , & hellip ; ,. year: nan