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Category: Performance

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

PostgreSQL 9.4 aggregate filter clauses: They do pay off

by Hans-Jürgen Schönig | 02.2015
In my previous posting on PostgreSQL 9.4 I wrote about aggregate FILTER clauses, which are a neat way to make […]

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 […]

Killing proper indexing: A neat idea

by Hans-Jürgen Schönig | 10.2014
After being on the road to do PostgreSQL consulting for CYBERTEC for over a decade I noticed that there are […]

Speed up PostgreSQL data loading with COPY (FREEZE)

by Hans-Jürgen Schönig | 08.2014
UPDATED JULY 19, 2023 - When I do training here at CYBERTEC, people often ask how to load data fast […]

Speeding up things with hint bits

by Hans-Jürgen Schönig | 08.2014
Post UPDATED June 2023: PostgreSQL is a highly sophisticated relational database system capable of performing wonderful operations. But, sophistication also […]

Reducing log messages on the client

by Hans-Jürgen Schönig | 06.2014
It happens quite frequently that PostgreSQL client applications are flooded with messages from the server. This is both annoying and […]

The power of response times and execution time

by Hans-Jürgen Schönig | 04.2014
The goal of the PostgreSQL optimizer is to provide you with a plan, which executes as fast as possible and […]

wal_level: What is the difference?

by Hans-Jürgen Schönig | 03.2014
To use PostgreSQL replication it is necessary to change the wal_level from “minimal” to “hot_standby”. But, which impact does this […]

Logging - the hidden speedbrakes

by Hans-Jürgen Schönig | 03.2014
When it comes to performance, people tend to forget some basic topics entirely. One of those topics is the impact […]

max_connections - Performance impacts

by Hans-Jürgen Schönig | 03.2014
It's commonly known that setting max_connections to an insanely high value is not too good for performance. Generations of system […]
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