Re: [PERFORM] POWA doesn't show queries executed
От | Marco Nietz |
---|---|
Тема | Re: [PERFORM] POWA doesn't show queries executed |
Дата | |
Msg-id | 62b98776-5f6d-d939-485a-c02c696d7ed6@mnietz.de обсуждение исходный текст |
Ответ на | [PERFORM] POWA doesn't show queries executed (Neto pr <netopr9@gmail.com>) |
Список | pgsql-performance |
Hi, powa relies on extensions (pg_stat_statements, pg_qualstats) that needs to be installed in every database you want to monitor. Maybe you just installed them only into postgres database?! Best regards Marco Am 18.11.2017 um 02:52 schrieb Neto pr: > 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) > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> > Livre de vírus. www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>. > > > <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
В списке pgsql-performance по дате отправления:
Предыдущее
От: Tom LaneДата:
Сообщение: Re: Using GROUPING SETS with more than one set disables predicate pushdown?