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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 indexing: Index scan vs. Bitmap scan vs. Sequential scan (basics)

by Hans-Jürgen Schönig | 02.2018
Introduction to PostgreSQL indexing. How and when to use an index scan, bitmap scan and/or sequential scan. Get performance tips.

Avoiding unnecessary function calls in PostgreSQL

by Hans-Jürgen Schönig | 01.2018
Fix bad performance related to slow function calls: When it comes to slow procedures, PostgreSQL often isn't to blame. Here's why.

CYBERTEC pgconfigurator: Configuring PostgreSQL visually

by Hans-Jürgen Schönig | 01.2018
CYBERTEC pgconfigurator is the ideal tool to configure postgresql.conf visually. PostgreSQL configuration has never been easier.

How a bad network configuration can cause table bloat

by Laurenz Albe | 01.2018
(Updated 2023-04-20) I recently had an interesting support case with table bloat that shows how the cause of a problem […]

ALTER TABLE: High-Availability taken care of

by Hans-Jürgen Schönig | 01.2018
Adding columns, dropping columns,... might be necessary. But changing data structures should not be done mindlessly. Use ALTER TABLE wisely.

PostgreSQL: Speeding up GROUP BY and joins

by Hans-Jürgen Schönig | 12.2017
Most people actually implement aggregations slightly wrong in PostgreSQL. This blogpost shows how to spped up group by and joins.

Searching for the best compromise: “Skyline” queries

by Hans-Jürgen Schönig | 12.2017
What about making more intelligent queries in PostgreSQL? Skyline queries could be the answer for you. We show you how to set them up.

Speeding up the creation of Postgres replicas

by CYBERTEC Guest | 09.2017
While it's generally well known how to create physical replicas (i.e. block level copies), using the super simple and really […]

PostgreSQL: Indexes and foreign keys

by Hans-Jürgen Schönig | 07.2017
Missing indexes and foreign keys may cause database performance problems. Learn how to speed up things dramatically - not only in PostgreSQL!

A quick check on Postgres 10 Beta Analytics Performance vs version 9.6

by CYBERTEC Guest | 06.2017
Some weeks ago the Beta 1 of upcoming Postgres 10 was released. Besides the very visible version numbering scheme change […]
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