On Sat, 2002-02-23 at 00:11, Tom Lane wrote:
...
> Oh BTW: the "10 rows" Oliver was wondering about are not the number of
> rows the planner thinks are in the table; they're the estimated number
> of result rows. Since there's no VACUUM ANALYZE stats available either,
> this is just a default selectivity estimate for the match clause (0.01)
> times the initial dummy reltuples value (1000). Not much content in it
> at all, eh?
Thanks, Tom. That was most informative.
--
Oliver Elphick Oliver.Elphick@lfix.co.uk
Isle of Wight http://www.lfix.co.uk/oliver
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