Tag: function

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Optimizing PostgreSQL functions with preloaded libraries

by Hans-Jürgen Schönig | 01.2024
In PostgreSQL, functions and procedures can be written in many different programming languages including but not limited to PL/pgSQL, PL/Perl, […]

Better SQL functions in PostgreSQL v14

by Laurenz Albe | 07.2022
We all know and value SQL functions as a handy shortcut. PostgreSQL v14 has introduced a new, better way to […]

Golden Proportions in PostgreSQL

by Hans-Jürgen Schönig | 01.2021
As CYBERTEC keeps expanding, we need a lot more office space than we previously did. Right now, we have a […]

Composite type performance issues in PostgreSQL

by Hans-Jürgen Schönig | 06.2020
This blog is about table functions and performance. PostgreSQL is a really powerful database and offers many features to make […]

PostgreSQL v12 new feature: optimizer support for functions

by Laurenz Albe | 05.2019
  PostgreSQL commit 74dfe58a5927b22c744b29534e67bfdd203ac028 has added “support functions”. This exciting new functionality that allows the optimizer some insight into functions. […]

Choose plpgsql variable names wisely

by Pavlo Golub | 03.2019
Pavel Stehule recently wrote the post "Don't use SQL keywords as PLpgSQL variable names" describing the situation when internal stored […]

PostgreSQL: Sharing data across function calls

by Hans-Jürgen Schönig | 05.2018
Recently I did some PostgreSQL consulting in the Berlin area (Germany) when I stumbled over an interesting request: How can […]

Window function: Why first_value and last_value are not bugs

by Hans-Jürgen Schönig | 04.2018
SQL is a must, if you want to be a Data Analyst or a Data Scientist. However, every once in […]
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