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Category: How To

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Here you can find all blog posts about the Category: How To. You can go back to all blog posts or take a look into our other categories & tags.

Transactional DDLs

by Hans-Jürgen Schönig | 07.2015
In PostgreSQL all major DDLs (CREATE TABLE, ...) are fully transactional. However, there are some exceptions.

Naming temporary tables properly in PostgreSQL

by Hans-Jürgen Schönig | 06.2015
What if a temporary table in PostgreSQL has the same name as a “real” table? What happens? Find out about naming temporary tables properly.

Partial aggregation: The beautiful way

by Hans-Jürgen Schönig | 02.2015
Partial aggregation: Functions such as min, max, count, sum, avg and so on are used in virtually every application. Find out more.

Managing backup speed with pg_basebackup

by Hans-Jürgen Schönig | 01.2015
How to adjust backup speed when using pg_basebackup in PostgreSQL. What if the I/O capacity of servers is low & network bandwidth is large?

Forking databases - the art of copying without copying

by Ants Aasma | 01.2015
I received a question about how to fork PostgreSQL databases like you can do on Heroku. As I did not […]

Analytics: Lagging entire rows

by Hans-Jürgen Schönig | 10.2014
There is a PostgreSQL feature in the area of analytics which is not widely known: the power to use composite data types along with analytics.

walbouncer: Filtering the transaction log

by Hans-Jürgen Schönig | 10.2014
You might not want to replicate all data to your standbys. walbouncer can filter the transaction log, & replicate only the data needed.

Next stop: Joining 1 million tables

by Hans-Jürgen Schönig | 09.2014
This week I started my preparations for one of my talks in Madrid. The topic is: "Joining 1 million tables". […]

Checking per-memory context memory consumption

by Hans-Jürgen Schönig | 09.2014
Internally PostgreSQL makes use of so called “memory contexts”. What is the idea and what are the advantages? Find out here.

Shrink the storage footprint of PostgreSQL data

by Hans-Jürgen Schönig | 08.2014
Keep the order of your columns in mind to unleash optimization potentials and reduce the table size in your PostgreSQL database.
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