Re: Suggestion on table analyze

[Adrian Klaver <adrian.klaver@xxxxxxxxxxx>]

On 5/21/20 7:18 AM, postgann2020 s wrote:
> Hi Team,
>
> Thanks for your support.
>
> Could you please suggest on below query.
>
> Environment
> PostgreSQL: 9.5.15
> Postgis: 2.2.7
>
> Mostly table contain GIS data.
>
> While analyzing the table getting below NOTICE. It seems is pretty 
> understanding, but needs help on the below points.
>
> 1 . What might be the reason for getting the NOTICE?.
> 2. Is this lead to any problems in the future?.
>
> ANALYZE SCHEMA.TABLE;
>
> NOTICE:  no non-null/empty features, unable to compute statistics
> NOTICE:  no non-null/empty features, unable to compute statistics
> Query returned successfully with no result in 1.1 secs.

This is coming from PostGIS:

postgis/gserialized_estimate.c:
/* If there's no useful features, we can't work out stats */
        if ( ! notnull_cnt )
        {
                elog(NOTICE, "no non-null/empty features, unable to 
compute statistics");
                stats->stats_valid = false;
                return;
        }



You might find more information from here:

https://postgis.net/support/

Though FYI PostGIS 2.2.7 is past EOL:

https://postgis.net/source/

> Thanks for your support.
>
> Regards,
> PostgAnn.


--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx