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* DO I miss something ?
@ 2016-11-18 13:52 Metatrader EA <metatraderea@gmail.com>
0 siblings, 1 reply; 2+ messages in thread
From: Metatrader EA @ 2016-11-18 13:52 UTC (permalink / raw)
To: pgsql-performance
Hi,
Do I miss something?
Shouldn't I have some rows from this query ?
Why is it empty?
SELECT relname, idx_tup_fetch + seq_tup_read as TotalReads from
pg_stat_all_tables
WHERE idx_tup_fetch + seq_tup_read != 0
order by TotalReads desc
LIMIT 10;
relname | totalreads
---------+------------
(0 rows)
//Bill
^ permalink raw reply [nested|flat] 2+ messages in thread
* Re: DO I miss something ?
@ 2016-11-18 14:04 vinny <vinny@xs4all.nl>
parent: Metatrader EA <metatraderea@gmail.com>
0 siblings, 0 replies; 2+ messages in thread
From: vinny @ 2016-11-18 14:04 UTC (permalink / raw)
To: Metatrader EA <metatraderea@gmail.com>; +Cc: pgsql-performance; pgsql-performance-owner@postgresql.org
On 2016-11-18 14:52, Metatrader EA wrote:
> Hi,
>
> Do I miss something?
> Shouldn't I have some rows from this query ?
>
> Why is it empty?
>
> SELECT relname, idx_tup_fetch + seq_tup_read as TotalReads from
> pg_stat_all_tables
> WHERE idx_tup_fetch + seq_tup_read != 0
> order by TotalReads desc
> LIMIT 10;
> relname | totalreads
> ---------+------------
> (0 rows)
>
> //Bill
Is statistics collection enabled in the config?
See: https://www.postgresql.org/docs/9.5/static/monitoring-stats.html
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2016-11-18 13:52 DO I miss something ? Metatrader EA <metatraderea@gmail.com>
2016-11-18 14:04 ` vinny <vinny@xs4all.nl>
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