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Tag: performance tuning

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Here you can find all blog posts about the Tag: performance tuning. 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 this blog ppost we cover the impact of aggregate FILTER clauses have on performance. Find out more about aggregation filters.

Killing proper indexing: A neat idea

by Hans-Jürgen Schönig | 10.2014
There are a couple of ways to kill indexing entirely. One of this ways is to apply functions or expressions. Read out in our blog.

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.

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 of writing log files.

max_connections - Performance impacts

by Hans-Jürgen Schönig | 03.2014
Setting max_connections to an insanely high value is not good for performance. I tried it, to see what impact it has in PostgreSQL.

Adjusting maintenance_work_mem

by Hans-Jürgen Schönig | 02.2014
After testing shared_buffers recently, I decided to do a little more testing on our new office desktop PC (8 core […]

PostgreSQL 9.3 - Shared Buffers Performance (1)

by Hans-Jürgen Schönig | 02.2014
A lot has been said about PostgreSQL shared buffers and performance. As my new desktop box has arrived this week […]

Common mistakes: UNION vs. UNION ALL

by Hans-Jürgen Schönig | 08.2013
In my role as a PostgreSQL consultant and trainer there are a couple of issues, which pop up on a […]

Functions: The most widely ignored performance tweak

by Hans-Jürgen Schönig | 05.2013
A PostgreSQL function performance can be marked as follows: VOLATILE, STABLE, IMMUTABLE or [NOT] LEAKPROOF. Undestand why.

pgbouncer: Proving the point

by Hans-Jürgen Schönig | 05.2013
pgbouncer: Opening and closing a database connection over and over again is not free, but overhead worth thinking about.
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