Thread: bug in autovacuum_analyze_scale_factor meta data

On 10/31/18 6:58 AM, Szymon Lipiński wrote:
> This is what I have in postgres 10 pg_settings table: and the 
> documentation has different description. What's more the default value 
> is outside the range of the min/max value.

Not seeing it:

0 < 0.1 < 100


reltuples is a measure of the sixe of the table:

https://www.postgresql.org/docs/11/static/catalog-pg-class.html

"reltuples     float4           Number of live rows in the table. This is only an 
estimate used by the planner. It is updated by VACUUM, ANALYZE, and a 
few DDL commands such as CREATE INDEX.
"


> 
> -[ RECORD 2 
> ]---+------------------------------------------------------------------------------------------
> name            | autovacuum_analyze_scale_factor
> setting         | 0.1
> unit            | [NULL]
> category        | Autovacuum
> short_desc      | Number of tuple inserts, updates, or deletes prior to 
> analyze as a fraction of reltuples.
> extra_desc      | [NULL]
> context         | sighup
> vartype         | real
> source          | default
> min_val         | 0
> max_val         | 100
> enumvals        | [NULL]
> boot_val        | 0.1
> reset_val       | 0.1
> sourcefile      | [NULL]
> sourceline      | [NULL]
> pending_restart | f
> 
> regards,
> Szymon Lipiński


-- 
Adrian Klaver
adrian.klaver@aklaver.com