Re: PostgreSQL 9.6 Temporary files - Mailing list pgsql-general

From Jimmy Augustine
Subject Re: PostgreSQL 9.6 Temporary files
Date
Msg-id CAF3uhZG3bdTgaxv+CfYd4C_eEy0LSSE2NH16QY2MTZuqa40_tg@mail.gmail.com
Whole thread Raw
In response to Re: PostgreSQL 9.6 Temporary files  (Andreas Kretschmer <andreas@a-kretschmer.de>)
Responses Re: PostgreSQL 9.6 Temporary files  (Adrian Klaver <adrian.klaver@aklaver.com>)
List pgsql-general


2018-03-19 18:25 GMT+01:00 Andreas Kretschmer <andreas@a-kretschmer.de>:
On 19 March 2018 18:21:42 CET, Jimmy Augustine <jimmy.augustine@enyx.fr> wrote:
>2018-03-19 18:15 GMT+01:00 Adrian Klaver <adrian.klaver@aklaver.com>:
>
>> On 03/19/2018 10:12 AM, Jimmy Augustine 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?
>>>
>>>         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.
>>>
>>
>> In what section of pgAdmin4?
>>
>In section "Statistics" when I click on my database.
>
>Or do you know what query it used?
>>
>I have found this but not sure
>
>SELECT temp_files AS "Temporary files"
>   , temp_bytes AS "Size of temporary files"FROM   pg_stat_database db;


That's aggregated. Not current values.
 
Ah did you know some documentation about that ?
Andreas


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