pg_isok

Overview

superuser=false, but this is not a trusted extension.

Version

Build

You can build the RPM / DEB packages for pg_isok using pig build:

pig build pkg pg_isok         # build RPM / DEB packages

Install

You can install pg_isok directly. First, make sure the PGDG and PIGSTY repositories are added and enabled:

pig repo add pgsql -u          # Add repo and update cache

Install the extension using pig or apt/yum/dnf:

• Install
• pig
• dnf
• apt

pig install pg_isok;          # Install for current active PG version

pig ext install -y pg_isok -v 18  # PG 18
pig ext install -y pg_isok -v 17  # PG 17
pig ext install -y pg_isok -v 16  # PG 16
pig ext install -y pg_isok -v 15  # PG 15
pig ext install -y pg_isok -v 14  # PG 14

dnf install -y pg_isok_18       # PG 18
dnf install -y pg_isok_17       # PG 17
dnf install -y pg_isok_16       # PG 16
dnf install -y pg_isok_15       # PG 15
dnf install -y pg_isok_14       # PG 14

apt install -y postgresql-18-pg-isok   # PG 18
apt install -y postgresql-17-pg-isok   # PG 17
apt install -y postgresql-16-pg-isok   # PG 16
apt install -y postgresql-15-pg-isok   # PG 15
apt install -y postgresql-14-pg-isok   # PG 14

Create Extension:

CREATE EXTENSION pg_isok;

Usage

• Source: Codeberg repo, documentation home, doc source
• Isok is a query-centered monitoring extension for PostgreSQL. It reports changes to previously seen questionable data patterns, not just the existence of the rows.

CREATE SCHEMA isok;
CREATE EXTENSION pg_isok SCHEMA isok;

Core Workflow

The extension centers on two tables:

• ISOK_QUERIES, which stores the monitoring queries
• ISOK_RESULTS, which stores the discovered issues and their resolution state

Run the monitor with run_isok_queries():

SELECT * FROM run_isok_queries();
SELECT * FROM run_isok_queries($$VALUES ('new_countries')$$) AS problems;

Rows in ISOK_RESULTS can be resolved or deferred so later runs no longer report them as active problems.

Notes

The documentation describes Isok as a “soft trigger” style tool for data cleanup and integrity review. It installs on PostgreSQL 10 or later and can be built as pure SQL for managed environments.