Recent Posts
Monitoring Postgres from the Command Line
August 06, 2012
You might already be aware that Postgres updates the process title of all its running processes. For example, this is a Debian Linux ps display for...
List user privileges in PostgreSQL/PPAS 11
July 29, 2012
*/ PostgreSQL has some useful functions which can be used to know about the privilege of a user on a particular Database object. Those functions are...
Monitor CPU and MEMORY percentage used by each process in PostgreSQL/PPAS 9.1
July 23, 2012
*/ PostgreSQL has pg_stat_activity view which can be use to get the session details. This view gives following information: 1. datid: database OID 2...
What Are Oids
June 13, 2012
Object Identifiers (oids) were added to Postgres as a way to uniquely identify database objects, e.g. rows, tables, functions, etc. It is part of...
Session Timeouts with Vaadin's Refresher Add-on
June 08, 2012
The Refresher add-on for Vaadin refreshes the UI without user input, allowing it to display information that has changed asynchronously on the server...
Cluster, Cluster, Schema, Schema
June 04, 2012
There are 500k to 1-million words in the English language, so you would think that Postgres would be able to find a unique word for every aspect of...
The Effectiveness of effective_cache_size
May 04, 2012
Friday, May 4, 2012 Having reported the methods for finding the size of the kernel cache on Linux, I wish to highlight the importance of the...
When to Use Multiple Clusters, Databases, or Schemas?
April 23, 2012
*/ I previously explained that Postgres allows multiple databases per cluster. The outstanding question might be, when should I use multiple clusters...
Tuning shared_buffers and wal_buffers
March 15, 2012
I spend a lot of time answering questions about PostgreSQL, and one of the questions I get asked frequently is: how should I set shared_buffers? And...
Limiting Postgres Connections
February 24, 2012
Friday, February 24, 2012 During recent training , I realized there five ways to control who can access Postgres, and it isn't totally clear in the...

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