Re: [PERFORM] POWA doesn't show queries executed

From: phb07 <phb07(at)apra(dot)asso(dot)fr>
To: Neto pr <netopr9(at)gmail(dot)com>, postgres performance list <pgsql-performance(at)postgresql(dot)org>
Subject: Re: [PERFORM] POWA doesn't show queries executed
Date: 2017-11-21 08:00:53
Message-ID: 3678e7db-1142-f768-5e39-1bac73c295d7@apra.asso.fr
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Hi,
You should probably report your issue at
https://github.com/dalibo/powa/issues
KR

Le 18/11/2017 à 02:52, Neto pr a écrit :
> Dear all
>
> I have successfully installed POWA (http://dalibo.github.io/powa),
> including all required extensions, see the following Printscreen of
> its operation of end email.
>
> But when executing queries in psql- comand line, this queries are not
> monitored by powa. I have checked that only Postgresql internal
> catalog queries are shown. .
> I need the Optimize Query functionality and mainly the suggestion of
> indexes.
> But that does not work, by clicking on the optimize query option,
> returns zero suggestions.
>
> See below that I created a scenario, with a table with a large amount
> of data, to check if the tool would suggest some index, and when
> making a complex query, no index is suggested.
>
> Someone uses POWA, knows if they have to configure something so that
> the queries are monitored and show suggestions ??
>
> ---------------------- Printscreens of my environment partially
> working:--------------
>
> https://sites.google.com/site/eletrolareshop/repositorio/powa1.jpeg
> https://sites.google.com/site/eletrolareshop/repositorio/powa2.jpeg
> https://sites.google.com/site/eletrolareshop/repositorio/powa3.jpeg
>
> -------------------------------------------------------------------------------------------------------
> ------------------------ scenario to verify the suggestion of indices
> --------------------
> postgres=# create table city_habitant (number_habitant text);
> CREATE TABLE
> postgres=# insert into city_habitant (number_habitant) select 'São
> Paulo' from (select generate_series (1, 4000000)) a;
> INSERT 0 4000000
> postgres=# insert into city_habitant (number_habitant) select 'Rio de
> Janeiro' from (select generate_series (1, 8000000)) a;
> INSERT 0 8000000
> postgres=# insert into city_habitant (number_habitant) select
> 'Recife' from (select generate_series (1, 6000000)) a;
> INSERT 0 6000000
> postgres=# insert into city_habitant (number_habitant) select
> 'Santos' from (select generate_series (1, 2000000)) a;
> INSERT 0 2000000
> postgres=# insert into city_habitant (number_habitant) select 'Chui'
> from (select generate_series (1, 6)) a;
> INSERT 0 6
> postgres=# SELECT number_habitant, count(number_habitant) FROM
> city_habitant GROUP BY number_habitant;
> number_habitant | count
> -------------------+------
> Rio de Janeiro | 8000000
> Recife | 6000000
> Santos | 2000000
> São Paulo | 4000000
> Chui | 6
> (5 rows)
>
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