Craig de Stigter writes:
> Does anyone have any idea why these numbers would be 4 times as big in
> Postgres 8.3.7 ?
It still doesn't make any sense to me that you're getting values larger
than the BLCKSZ. If you look into where that's coming from you might
get a clue what's up with the version
This query was giving us good-enough results on our old system. The
estimates don't have to be absolutely accurate, just ballpark figures.
Also we are estimating the size of zipped shapefiles, not textual
geometries.
Our tests show that such sizes are quite accurate for medium/large
datasets when
Craig de Stigter writes:
> We are using the PostgreSQL pg_stats view to estimate file sizes for some
> geodata exports. However, the following query gives us totally different
> results on different servers:
> select avg_width from pg_stats where tablename='some_geodata' and attname =
> 'GEOMETRY
Hi list
We are using the PostgreSQL pg_stats view to estimate file sizes for some
geodata exports. However, the following query gives us totally different
results on different servers:
select avg_width from pg_stats where tablename='some_geodata' and attname =
> 'GEOMETRY';
>
PostgreSQL 8.3.7 on