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Nikolay Samokhvalov: Useful queries to analyze PostgreSQL lock trees (a.k.a. lock queues)

18. Oktober 2021 - 12:05
PostgreSQL locking issues may be annoying. This blog post provides useful information that will help you understand how PostgreSQL MVCC implements locking and how to troubleshoot locking issues.

David Z: Backup Label in PostgreSQL

16. Oktober 2021 - 0:42
1. Overview

When I was working on some backup and recovery related features for a project based on Postgres, I noticed that there is file called backup_label. By quickly google search, you can find some very nice blogs or books which discussed this topic, such as, The Internals of PostgreSQL, one of my favourite books. In this blog, I am going to talk it a little more based on my experience.

Ryan Lambert: Using Query ID in Postgres 14

15. Oktober 2021 - 2:30

Postgres 14 was released on September 30, 2021. With a new major version comes new features to explore! This post takes a look at the unique query id option enabled with compute_query_id in postgresql.conf. This particular backend improvement, included with Postgres 14, is one I am excited about because it makes investigating and monitoring query related performance easier.

Jonathan Katz: Multi-Cluster Postgres Federation on Kubernetes with Postgres 14 Using GitOps

14. Oktober 2021 - 16:29

One of the reasons why I like deploying Postgres on Kubernetes with PGO, the open source Postgres Operator, is that it makes it easier to set up distributed database systems.

Akhil Reddy Banappagari: Stored Procedure OUT Parameters in PostgreSQL 14

14. Oktober 2021 - 10:46

PostgreSQL global development group generally announces a new release every year, with several new features.

Paul Brebner: Kafka Connect and Elasticsearch vs. PostgreSQL Pipelines: Initial Performance Results (Pipeline Series Part 8)

13. Oktober 2021 - 15:06

In Part 6 and Part 7 of the pipeline series we took a different path in the pipe/tunnel and explored PostgreSQL and Apache Superset, mainly from a functional perspective—how can you get JSON data into PostgreSQL from

Pavlo Golub: SHOW TABLES in PostgreSQL: what’s wrong with it?

13. Oktober 2021 - 10:00

In this article, I will answer the questions: why isn’t there a  SHOW TABLES command in PostgreSQL, when will SHOW TABLES in PostgreSQL be available, and how do I list tables with native PostgreSQL methods?

Why isn’t there a SHOW TABLES command in PostgreSQL?

People who come from MySQL are always asking the same question: why doesn’t the command SHOW TABLES work in PostgreSQL ?

Pavel Stehule: pspg 5.4.1 released

13. Oktober 2021 - 8:54
I released bugfix release of pspg. The problem with copy to clipboard on macos (using by pbcopy) is fixed in this release.

Jobin Augustine: Why Linux HugePages are Super Important for Database Servers: A Case with PostgreSQL

12. Oktober 2021 - 16:03

Often users come to us with incidents of database crashes due to OOM Killer. The Out Of Memory killer terminates PostgreSQL processes and remains the top reason for most of the PostgreSQL database crashes reported to us. There could be multiple reasons why a host machine could run out of memory, and the most common problems are:

Pavel Stehule: Orafce 3.16.2 for Postgres 12, 13 and 14 for Microsoft Windows

12. Oktober 2021 - 8:46
I made dll of orafce 3.16.2. These dll are available from archive Instalation is simple. Copy related dll file to directory Program files/Postgres/version/lib and rename this dll just to orafce. Next, copy orafce.control and orafce--3.16.sql to Program files/Postgres/version/share/extension. Last step is executing command CREATE EXTENSION orafce in the database, where you want to use orafce. It can require redistributable runtime for Visual Studio 2019.

Regina Obe: Multirange types in PostgreSQL 14

12. Oktober 2021 - 4:18

One of the features we are most excited about in recently released PostgreSQL 14 is the introduction of Multirange types. In a nutshell Multirange types are sets of non-overlapping ranges. Unlike array of ranges, they prevent overlaps and thus allow you to effectively model ranges with gaps.

One of the use cases we have for them is modeling time. For example if you wanted to keep track of the cumulative periods and how many days someone is in a hospital, you could store this as a datemultirange type.

Regina Obe: PostgreSQL 14 64-bit for Windows FDWs

12. Oktober 2021 - 4:15

We are pleased to provide binaries for file_textarray_fdw and odbc_fdw for PostgreSQL 14 Windows 64-bit.

To use these, copy the files into your PostgreSQL 14 Windows 64-bit install folders in same named folders and then run CREATE EXTENSION as usual in the databases of your choice. More details in the packaged README.txt

Pavel Stehule: plpgsql_check 2.0.4 for Microsoft Windows and Postgres 12, 13 and 14.

11. Oktober 2021 - 21:16
I made dll of plpgsql_check 2.0.4. These dll are available from archive Instalation is simple. Copy related dll file to directory Program files/Postgres/version/lib and rename this dll just to plpgsql_check. Next, copy plpgsql_check.control and plpgsql_check-2.0.sql to Program files/Postgres/version/share/extension. Last step is executing command CREATE EXTENSION plpgsql_check in the database, where you want to use plpgsql_check.

Frits Hoogland: Linux buffered write latency

11. Oktober 2021 - 16:29

This blogpost is about doing buffered writes to a linux filesystem, and latency fluctuations that it could show you, especially when performing a lot of writes, and other implications.

The first thing to discuss is buffered writes. Any write to a linux local filesystem is done 'buffered', unless explicitly defined it not to, which is done by opening the file with the O_DIRECT flag. So all file interactions from the shell likely are done buffered, and the Postgresql database is also using buffered IO.

Andreas 'ads' Scherbaum: Sebastiaan Mannem

11. Oktober 2021 - 16:00
PostgreSQL Person of the Week Interview with Sebastiaan Mannem: I was born in a city that is nowadays called Lelystad in the Netherlands. Lelystad was founded in 1967, and is built on reclaimed land, so a few years before that it was all water, and it still is approximately 3 metres (9.8 feet) below the sea level.

Pavel Stehule: pspg 5.4.0

10. Oktober 2021 - 9:07
I released pspg version 5.4.0.. In this release there is an possibility to customize buildin color themes: template = 1
template_menu = 3

background = black, white
data = black, white
label = black, white, italic, bold
border = #000000, white
footer = lightgray, white
cursor_data = blue, white, italic, bold, dim, reverse
cursor_border = blue, blue , italic, bold, dim, reverse
cursor_label = blue, white, italic, bold, dim, reverse

Luca Ferrari: Installing PostgreSQL on OpenBSD

9. Oktober 2021 - 2:00

A quick look at how to get PostgreSQL up and running on OpenBSD.

Ryan Lambert: PgDD extension moves to Pgx

8. Oktober 2021 - 3:45

Our data dictionary extension, PgDD, has been re-written using the pgx framework in Rust! At this time I have tagged 0.4.0.rc3 and just need to do a bit more testing before the official 0.4.0 release. While I am excited for the news for PgDD, what is more exciting is the pgx framework and the ease it brings to developing Postgres extensions!

Matt Yonkovit: Using the Range and the New Multirange Data Type in PostgreSQL 14

7. Oktober 2021 - 15:46

Don’t miss the great overview of PostgreSQL 14 that Umair Shahid recently put together, PostgreSQL 14 – Performance, Security, Usability, and Observability!

Florian Nadler: OpenStreetMap service by CYBERTEC

7. Oktober 2021 - 10:00

In response to repetitive customer requests seeking spatial datasets based on OpenStreetMap service, CYBERTEC decided to start an initiative to address this demand.