Re: PostgreSQL 9.6 Temporary files

2018-03-19 18:15 GMT+01:00 Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)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;

>>
>> -- Adrian Klaver
>> adrian(dot)klaver(at)aklaver(dot)com <mailto:adrian(dot)klaver(at)aklaver(dot)com>
>>
>>
>>
>
> --
> Adrian Klaver
> adrian(dot)klaver(at)aklaver(dot)com
>