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Tag: query

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

Query performance of the upcoming version 11 of PostgreSQL

by CYBERTEC Guest | 10.2018
By Kaarel Moppel - Last week the first release candidate of the upcoming Postgres version 11 was released, stating that […]

3 ways to detect slow queries in PostgreSQL

by Hans-Jürgen Schönig | 08.2018
(Last updated 18.01.2023) When digging into PostgreSQL performance, it is always good to know which options one has to spot […]

Avoiding “OR” for better query performance

by Laurenz Albe | 05.2018
  PostgreSQL query tuning is our daily bread at CYBERTEC, and once you have done some of that, you'll start […]

Searching for the best compromise: “Skyline” queries

by Hans-Jürgen Schönig | 12.2017
Ever since Hannes Eder published the idea of the SKYLINE OF operator on the PostgreSQL mailing list years ago, I […]

Using "lightweight" functional indexes - BRIN

by CYBERTEC Guest | 11.2017
By Kaarel Moppel - Using BRIN to improve query performance - This is a quick performance tip for all those […]

Parallel queries and SERIALIZABLE transactions

by Hans-Jürgen Schönig | 11.2016
In version 9.6 PostgreSQL introduced parallel queries. The ability to use more than just one CPU core per query is […]

Detecting wrong planner estimates

by Hans-Jürgen Schönig | 07.2014
In 99% of all cases the PostgreSQL planner does a perfect job to optimize your queries and to make sure […]

Speeding up “min” and “max”

by Hans-Jürgen Schönig | 09.2013
Indexes are a perfect tool to find a certain value or some kind of range in a table. It is […]
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