Re: PostgreSQL 9.6 Temporary files

On Mon, Mar 19, 2018 at 12:45 PM, Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>
wrote:

> 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?
>
>
>> Could you tell me what are those temporary files and where are they at?
>> Can I delete some of them?
>>
>> All values come from pgAdmin 4 and checked by my own SQL
>> queries(postgresql-9.6).
>>
>
> Can you show actual queries used?
>
> I already run vacuum full and there is few dead tuples.
>>
>> Best regards,
>> Jimmy AUGUSTINE
>>
>
>
> --
> Adrian Klaver
> adrian(dot)klaver(at)aklaver(dot)com
>
> > 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.

*I am not sure what your query was that deteremined table and index sizes,
but try using the query instead.*

*Note that total_size is the size of the table and all it's indexes.*

*SELECT n.nspname as schema, c.relname as table, a.rolname as
owner, c.relfilenode as filename, c.reltuples::bigint,
pg_size_pretty(pg_relation_size(quote_ident(n.nspname) || '.' ||
quote_ident(c.relname) )) as size,
pg_size_pretty(pg_total_relation_size(quote_ident(n.nspname) || '.' ||
quote_ident(c.relname) )) as total_size,
pg_relation_size(quote_ident(n.nspname) || '.' || quote_ident(c.relname) )
as size_bytes, pg_total_relation_size(quote_ident(n.nspname) || '.'
|| quote_ident(c.relname) ) as total_size_bytes, CASE WHEN
c.reltablespace = 0 THEN 'pg_default' ELSE (SELECT
t.spcname FROM pg_tablespace t WHERE (t.oid =
c.reltablespace) ) END as tablespaceFROM
pg_class c JOIN pg_namespace n ON (n.oid = c.relnamespace) JOIN pg_authid
a ON ( a.oid = c.relowner ) WHERE quote_ident(nspname) NOT LIKE 'pg_%'
AND quote_ident(relname) NOT LIKE 'pg_%' AND quote_ident(relname) NOT
LIKE 'information%' AND quote_ident(relname) NOT LIKE 'sql_%' AND
quote_ident(relkind) IN ('r')ORDER BY total_size_bytes DESC, 1, 2;-- *

*Melvin DavidsonMaj. Database & Exploration SpecialistUniverse Exploration
Command – UXCEmployment by invitation only!*