Hello, Michael. > On Thu, Mar 15, 2007 at 01:58:47PM +0600, Alexey Romanchuk wrote: >> is it possible to determine dead tuples size for table? > See contrib/pgstattuple. thanks, i install contribs and try to analyze result of pgstattuple function and found it strange. Here it is output: pgstattuple ---------------------------------------------------------------------- (233242624,1186804,206555428,88.56,20707,3380295,1.45,13896816,5.96) When i try to sum all size (live, dead and free) the sum is not equal total size. For this table 206555428 + 3380295 + 13896816 = 223832539. The difference between total and sum is 9410085. It is near 5%. Is it ok? -- Alexey Romanchuk