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Tag: vacuum

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

What is autovacuum doing to my temporary tables?

by Hans-Jürgen Schönig | 10.2019
The main issue is that autovacuum does not touch temporary tables. Yes, it’s true – you have to VACUUM temporary tables on your own. Read more

A beginners guide to PostgreSQL's UPDATE and autovacuum

by Hans-Jürgen Schönig | 07.2018
This article is a beginners guide about how PostgreSQL handles UPDATEs, about VACUUM as well as autovacuum and it's limitations.

Four reasons why VACUUM won't remove dead rows from a table

by Laurenz Albe | 03.2018
Why vacuum? Whenever rows in a PostgreSQL table are updated or deleted, dead rows are left behind. VACUUM gets rid […]

What PostgreSQL Full-Text-Search has to do with VACUUM

by Hans-Jürgen Schönig | 03.2018
What does PostgreSQL Full-Text-Search have to do with VACUUM? Find out about the GIN pending list and how to use it to improve performance.

Speeding up things with hint bits

by Hans-Jürgen Schönig | 08.2014
UPDATED June 2023: What are hint bits in PostgreSQL? Hint bits improve PostgreSQL performance - find out why and how. Includes code examples.

Table bloat revisited: Making tables shrink in PostgreSQL

by Hans-Jürgen Schönig | 08.2013
UPDATED Understand table bloat. Why deleting data from a table in a PostgreSQL database does not always shrink files on disk.
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