Re: Statistics mismatch between n_live_tup and actual row count

I am also seeing a drift in the n_live_tup value compared to actual row count
on the table on PG9.0.6

It drifts after a vacuum , you can bring it back closer to the actual number
by running ANALYSE several times, you can lock it back into the right value
with a vacuum full, but then if you run a vacuum it  shows a n_live_tup less
than the actual rows in the table.

This is on a table seeing 80% HOT updates. Its a table that is heavily
updated.

Server not running autovacuum

Tim



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