On Sun, 2 Apr 2006, Jan Kesten wrote: > Stephan Szabo schrieb: > > > Did you reset the table contents between these two (remember that > > explain analyze actually runs the query)? The second appears to be > > changing no rows from the output. > > I for myself did not, but as there are runnig automatic jobs > periodically I can't tell, if one ran in the time while I was testing > (but I guess not). At starting my tests all rows contained a zero for > all tokens and there should be no ones at all. The reason I asked is that the explain analyze output for the first query on fak6 (using a seqscan) seemed to imply 24k rows actually matched the condition and were updated, so comparisons to the later times may be skewed.
