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Questions tagged [pg-stat-statements]

The pg_stat_statements PostgreSQL module provides a means for tracking execution statistics of all SQL statements executed by a server.

The module must be loaded by adding pg_stat_statements to shared_preload_libraries in postgresql.conf, because it requires additional shared memory. This means that a server restart is needed to add or remove the module.

The pg_stat_statements View
The statistics gathered by the module are made available via a system view named pg_stat_statements. This view contains one row for each distinct query, database ID, and user ID (up to the maximum number of distinct statements that the module can track).

Functions
pg_stat_statements_reset discards all statistics gathered so far by pg_stat_statements. By default, this function can only be executed by superusers.

Full documentation

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How can I use pg_proctab extension in AWS Aurora for Monitoring purpose?

I have recently came across this pg_proctab extension through which we should be able to get the details of OS stats. However I am unable to get the value out of the functions built by this extension, Here is the the readme from the GIT code…
Chetan Dev Khanna
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pg_stat_activity keeps showing the query which has timeout due to statement_timeout

I am using the following query on the pg_stat_activity to look for the queries that are currently running: SELECT pid, age(clock_timestamp(), query_start), usename, query, * FROM pg_stat_activity WHERE query != '' AND query NOT ILIKE…
Mohan
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GCP pg_stat_statements insufficient privileges and read replicas

I'm running postgres on GCP SQL service. I have a main and a read replica. I've enabled pg_stat_statements on the main node but still I get messages that I have insufficient privileges for almost each and every row. When i've tried to enable the…
Max
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Measure XID use on failed queries in PostgreSQL

I am investigating commonly executed queries on a Postgres database to help reduce XID use. I can get a list of queries executed and the number of calls using pg_stat_statements, however it does not include queries that failed for reasons such as a…
Kirk Zathey
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Postresql; Execute a query against pg_statements, return the result and reset the count

I'm trying to graph the ouput of pg_statements, so we can see min by min the avg, min and max of time taken for transactions. By default pg_statements appears to just be ever increasing counts. (Currently stuck on version 9.2) so ive been trying…
AH101
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How to add extension pg_stat extension to postgres bitnami helm chart?

I have following Chart.yaml dependencies: - name: postgresql version: 11.6.7 repository: "@bitnami" condition: postgresql.enabled values.yaml: postgresql: auth: database: ... password: ... postgresPassword: ... metrics: …
gstackoverflow
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Which are the reasons why pg_stats_all_table values might reset on a database?

I have read the PostgreSLQ documentation and it states that these conditions might reset the statistics' collection values: Immediate Shutdown of the database Server Crash (where the db is hosted) Manual resetting with SELECT…
BadProgrammer
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Can pg_stat_statements.max increase cause problems?

My production postgresql v11 db is "tenant" over schemas, so on each schema the objects are repeated so I have over 100k objects to track with pg_stat_statements, which is set 5000 by default. If I increase this number could cause me some overheads,…
argdenis
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How long does pg_statio_all_tables data live for?

I have read https://www.postgresql.org/docs/current/monitoring-stats.html#MONITORING-PG-STATIO-ALL-TABLES-VIEW But it does not clarify whether this data is over the whole history of the DB (unless you reset the stats counters). Or whether it is just…
ThePianoDentist
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Getting error "could not access file "pg_stat_statements": No such file or directory"

I have the package postgresql11-contrib installed. $ yum list installed | grep contrib postgresql11-contrib.x86_64 11.11-1PGDG.rhel7 @pgdg11 Here is the version of postgres. psql (PostgreSQL) 11.6 I have the below entries in…
Sandesh Veerapur
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pg_stat_statements_reset() schedule

Aurora Postgres 11.8 Is there any way possible that a non-superadmin user can run pg_stat_statements_reset()? Details: Have to schedule pg_stat_statements_reset() on an hourly basis, since there is no internal scheduler available in Aurora Postgres…
user3706888
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Hourly Segregate pg_stat_statements On Reader Instance

Aurora Postgres 11.8 I have to segregate pg_stat_statements on an hourly basis on Reader instance. On Writer instance it's simple, create a table and backup pg_stat_statements on an hourly basis and then clean up pg_stat_statements using…
user3706888
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error trying to create extension: pg_stat_statement

I'm trying to install pg_stat_statements doing this: CREATE EXTENSION pg_stat_statements; and I get this: ERROR: could not open extension control file "/usr/local/greenplum-db-6.10.1/share/postgresql/extension/pg_stat_statements.control": No such…
Matias
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How to compute queryId from pg_stat_statements on PostgreSQL?

PostgreSQL has these monitoring tables, in particular pg_stat_statements, that contians this column called queryId and I was wondering how it is computed. If anybody knows where can I find the source code, that would be greatly appreciated. So the…
Miguel Wang
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How to link jobs on coordinator and workers on a Citus database on PostgreSQL 12

I have Citus extension on a PostgresSQL server. And I want to see the statistics from pg_stat_statements of each worker through the coordinator node. However, there is no column to match the tables from coordinator and workers. Does anybody know how…
Miguel Wang
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