PostgreSQL DBA Scripts from GitHub

Project POSTGRES

Exploring the postgres_dba GitHub Repository (PostgreSQL DBA Scripts Guide)

As part of my structured learning journey into PostgreSQL administration, focused on practical PostgreSQL DBA skills including monitoring, performance diagnostics, and production best practices.

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Learning Objectives

• Understand how to use Git for DBA script management
• Clone and explore a PostgreSQL DBA repository
• Identify useful monitoring and diagnostic scripts
• Apply scripts safely in real environments

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Repository Details

Repository Name: postgres_dba
Author: Nikolay Samokhvalov
Official GitHub Link:
https://github.com/NikolayS/postgres_dba

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How to Clone the Repository

cd ~/Documents
git clone https://github.com/NikolayS/postgres_dba.git
cd postgres_dba
ls -l

The git clone command downloads the complete repository, including full version history.

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Repository Structure (High-Level View)

After cloning, review the file structure:

find . -type f | sort

The repository contains multiple SQL scripts focused on:

• Active session monitoring
• Long-running query detection
• Index usage analysis
• Vacuum and maintenance monitoring
• Replication diagnostics

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Key DBA Scripts to Start With

1️⃣ Active Session Monitoring

Helps identify currently running queries and wait events.

2️⃣ Long Running Queries

Detects queries running longer than expected.

3️⃣ Index Usage Statistics

Helps identify tables performing sequential scans.

4️⃣ Vacuum / Autovacuum Monitoring

Validates maintenance effectiveness and detects bloat risk.

5️⃣ Replication Status

Monitors replication lag and WAL shipping status.

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Oracle DBA Mapping

• Oracle v$session ↔ PostgreSQL pg_stat_activity
• Oracle ASH ↔ PostgreSQL extensions / Performance Insights
• Oracle wait events ↔ wait_event_type / wait_event

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Best Practices

• Always review scripts before running in production
• Test heavy queries in non-production first
• Capture output for trend analysis
• Integrate useful scripts into your DBA toolkit

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Conclusion

Instead of copying full repositories, the correct approach is: Clone → Analyze → Curate → Learn → Apply.

Project POSTGRES will continue with deeper script analysis and performance diagnostics.

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References & Credits

All original scripts belong to the author: Nikolay Samokhvalov.

Official Repository: https://github.com/NikolayS/postgres_dba

This article is written for educational and knowledge-sharing purposes.