title: sampling-based estimation of the number of distinct values of an attribute. authors: peter j. haas , lynne stokes , s. seshadri , jeffrey f. naughton. venue: vldb. year: 1995
title: sampling-based estimation of the number of distinct values of an attribute. authors: peter j. haas , jeffrey f. naughton , s. seshadri , lynne stokes. venue: very large data bases. year: 1995