Re: ERROR: unrecognized parameter "autovacuum_analyze_scale_factor"

To be honest, it isnt my db, but I just have access to it ...
Either way, so I need to change the vacuum_Analyze_scale/threshold for the
original table ? But the value will be too high/low for the original table.
For example if my original table has 30,000 rows and my toasted has
100,000,000 rows. I want to analyze every 50K records in the toasted (by
the way, sounds legit ?) which is 0.05% of 100m. With this value it means
that every 0.05*30,000=1500 updated/deletes on the original table it will
run analyze on the original table which is very often...
Doesn't it seems a little bit problematic ?

‫בתאריך יום ד׳, 13 בפבר׳ 2019 ב-18:13 מאת ‪Alvaro Herrera‬‏ <‪
alvherre(at)2ndquadrant(dot)com‬‏>:‬

> On 2019-Feb-13, Mariel Cherkassky wrote:
>
> > Hey,
> > I have a very big toasted table in my db(9.2.5).
>
> Six years of bugfixes missing there ... you need to think about an
> update.
>
> > Autovacuum doesnt gather
> > statistics on it because the analyze_scale/threshold are default and as a
> > result autoanalyze is never run and the statistics are wrong :
>
> analyze doesn't process toast tables anyway.
>
> I think the best you could do is manually vacuum this table.
>
> --
> Álvaro Herrera https://www.2ndQuadrant.com/
> PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
>