Re: Autovacuum/Analyze Doesn't seem to be running properly

On 2020-Mar-04, Chris Kim wrote:

> In my testing it looks like pg_stat_reset was ran, but I haven't been able
> to verify this from my logs.
> 
> Is there another way the stats could get reset?

Yes, a crash/restart does that.

> Does autovacuum use the stats from pg_stat_user_table meaning if there 50
> live tuples and 1000 dead tuples, but then the stats are reset, those dead
> tuples would never get cleaned up until there was new activity on that
> table?

That's correct.

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