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Tag: development

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

ICU collations against PostgreSQL data corruption

by Laurenz Albe | 07.2019
  (Updated 2024-09-29) This article was prompted by version 2.28 of the GNU C library, which changed the definition of […]

Building PostgreSQL (x86, x64) and OpenSSL using MSYS2 and MinGW under Windows

by Pavlo Golub | 07.2019
I've written already a blog post "Building PostgreSQL with MSYS2 and MinGW under Windows" a year ago. But this time […]

Triggers to enforce constraints in PostgreSQL

by Laurenz Albe | 04.2019
  Sometimes you want to enforce a condition on a table that cannot be implemented by a constraint. In such […]

PostgreSQL count(*) made fast

by Laurenz Albe | 04.2019
  It is a frequent complaint that count(*) is so slow on PostgreSQL. In this article I want to explore […]

Transactions in PostgreSQL: READ COMMITTED vs. REPEATABLE READ

by Hans-Jürgen Schönig | 11.2018
How to use the two most common transaction isolation levels in PostgreSQL: READ COMMITTED and REPEATABLE READ.

Machine Learning in PostgreSQL Part 1: Kmeans clustering

by CYBERTEC Guest | 11.2018
Let's take a look at how to do Kmeans, one of the most popular unsupervised learning algorithms, directly within PostgreSQL using PLPython.

CREATE VIEW vs ALTER TABLE in PostgreSQL

by Hans-Jürgen Schönig | 05.2018
A view is a virtual table based on a SQL statement. What happens if the data structure of the underlying PostgreSQL table changes?

Are triggers really that slow in Postgres?

by CYBERTEC Guest | 05.2018
PostgreSQL trigger performance. Should we use tiggers at all? Find out how triggers perform in performance tests.

Window function: Why first_value and last_value are not bugs

by Hans-Jürgen Schönig | 04.2018
PostgreSQL can be used for more than just trivial queries. A look into what a window function does: first_value and last_value in PostgreSQL.

PostgreSQL: Speeding up analytics and window functions

by Hans-Jürgen Schönig | 03.2018
How to improve speed is by rearranging window functions in a clever way: some clever optimization can give you better database performance.
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