I tried this query and my database size is equal to 162GB. 2018-03-19 18:17 GMT+01:00 Melvin Davidson <melvin6...@gmail.com>:
> > > On Mon, Mar 19, 2018 at 1:12 PM, Jimmy Augustine <jimmy.august...@enyx.fr> > wrote: > >> >> >> 2018-03-19 18:09 GMT+01:00 Adrian Klaver <adrian.kla...@aklaver.com>: >> >>> On 03/19/2018 10:04 AM, Jimmy Augustine wrote: >>> >>>> >>>> >>>> 2018-03-19 17:45 GMT+01:00 Adrian Klaver <adrian.kla...@aklaver.com >>>> <mailto:adrian.kla...@aklaver.com>>: >>>> >>>> On 03/19/2018 09:31 AM, Jimmy Augustine wrote: >>>> >>>> Dear Friends, >>>> >>>> I am newbie to postgresql. >>>> I have 162 GB on my database but when I check size of all >>>> tables, I approximately obtain 80 GB. >>>> I also see that I have 68GB of temporary files however I only >>>> found 2.4MB at postgres/data/base/pgsql_tmp. >>>> >>>> >>>> Exactly how did you determine this? >>>> >>>> I used this command and sum result for all database : >>>> SELECT pg_size_pretty(pg_total_relation_size('table_name')); >>>> >>>> And this for complete database : >>>> SELECT pg_size_pretty(pg_database_size('Database Name')); >>>> >>>> >>> So where did the 68GB number for temporary files come from? >>> >>> I don't measure this value by my own. I was disappointed by the gap >> between the two queries, so I checked pgAdmin 4 and I saw this value. >> >>> >>> -- >>> Adrian Klaver >>> adrian.kla...@aklaver.com >>> >> >> > > > *>I don't measure this value by my own. I was disappointed by the gap > between the two queries, so I checked pgAdmin 4 and I saw this value. * > > *I think your problem is that SELECT > pg_size_pretty(pg_total_relation_size('table_name')); only looks at the > current database* > > > *but SELECT pg_size_pretty(pg_database_size('Database Name')); looks at > ALL databases.* > > > > > > > > > > > > > *Try this query instead to show individual database sizes.SELECT oid, > datname, pg_size_pretty(pg_database_size(datname))as > size_pretty, pg_database_size(datname) as size, (SELECT > pg_size_pretty (SUM( pg_database_size(datname))::bigint) FROM > pg_database) AS total, ((pg_database_size(datname) / (SELECT SUM( > pg_database_size(datname)) FROM > pg_database) ) * 100)::numeric(6,3) AS pct FROM pg_database ORDER BY > datname;* > > -- > *Melvin Davidson* > *Maj. Database & Exploration Specialist* > *Universe Exploration Command – UXC* > Employment by invitation only! >
