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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.

effective_cache_size: Better set it right

by Hans-Jürgen Schönig | 11.2013
PostgreSQL knows a parameter called effective_cache_size. To many this is one of the most mysterious settings in the entire PostgreSQL […]

Operator classes explained

by Hans-Jürgen Schönig | 11.2013
After my morning session in Dublin some people asked me to share the codes of an operator class I created […]

Common security issues prior to PostgreSQL 15

by Hans-Jürgen Schönig | 10.2013
UPDATED July 2023: PostgreSQL has a sophisticated security system capable of handling complex policies and user permissions are an essential […]

Reducing space consumption

by Hans-Jürgen Schönig | 10.2013
After digging through some customer source code yesterday I thought that it might be worth publishing a post about space […]

CREATE DOMAIN: Data type abstraction

by Hans-Jürgen Schönig | 10.2013
If a good programmer is facing a technical problem, he will always try to abstract the problem. In a procedural […]

PostgreSQL: Linux kernel I/O tuning

by Hans-Jürgen Schönig | 10.2013
When you are installing a database server, PostgreSQL is not the only thing which can be tuned. The operating system […]

Changing histogram sizes

by Hans-Jürgen Schönig | 10.2013
Histograms are a common way for a relational database to store statistical information about data. What is this kind of […]

Reducing the impact of locking

by Hans-Jürgen Schönig | 10.2013
“Waiting is the slowest way to execute an operation” - this is how a professor at my university in Vienna […]

Per-tablespace storage parameters

by Hans-Jürgen Schönig | 10.2013
Just like most other database systems I am aware of PostgreSQL providing a feature called tablespaces. In general a tablespace […]

Sequences – transactional behavior

by Hans-Jürgen Schönig | 09.2013
In this posting I would like to describe some important aspects of PostgreSQL sequences. In our daily work we have […]
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