Neues vom PostgreSQL Planet
Hubert 'depesz' Lubaczewski: How to limit rows to at most N per category – fix
Doug Hunley: Announcing the Crunchy Data PostgreSQL Security Technical Implementation Guide
Crunchy Data is pleased to announce the publication of the Crunchy Data PostgreSQL Security Technical Implementation Guide (STIG) by the United States Defense Information Systems Agency (DISA).
Devrim GÜNDÜZ: Announcing PostgreSQL RPM repository for RHEL 8 - ppc64le
To use the repo and install PostgreSQL on this platform, please follow these steps: Continue reading "Announcing PostgreSQL RPM repository for RHEL 8 - ppc64le"
Hubert 'depesz' Lubaczewski: Fixes on why-upgrade.depesz.com
Steven Pousty: Using R in Postgres for Logistic Regression Modeling
Greetings friends! We have finally come to the point in the Postgres for Data Science series where we are not doing data preparation. Today we are going to do modeling and prediction of fire occurrence given weather parameters… IN OUR DATABASE!
Ibrar Ahmed: PostgreSQL Database Security: What You Need To Know
When we are talking about database security, it encompasses different modules of different areas. It is a very vast topic because, with databases, we need need to secure the whole ecosystem, not just the database node. The figure below shows the major breakdown of the “parts” which need to be secure. It is clearly evident that the database itself is just the 1/6th part of that. You need to secure your (1) Network (2) Network Node (3) Data (4) Database (5) Users and (6) Application. A secure database means it is secure by all means.
Andreas 'ads' Scherbaum: Amit Langote
Ryan Lambert: Improved OpenStreetMap data structure in PostGIS
It was nearly a decade ago when I first loaded OpenStreetMap data to PostGIS. Over the years my fingers have typed osm2pgsql --slim --drop ... countless times and I do not see an end to that trend anytime soon. One thing that is changing is that getting high quality OpenStreetMap data into PostGIS is easier than ever!
Luca Ferrari: Single User Mode and -P flag
How to allow corrupted catalogs repair.
Kat Batuigas: Loading Data into PostGIS: An Overview
There are a lot of ways to load data into a PostgreSQL/PostGIS database and it's no different with spatial data. If you're new to PostGIS, you've come to the right place. In this blog post, I'll outline a few free, open source tools you can use for your spatial data import needs.
Greg Smith: PostgreSQL 13 Benchmark: Memory Speed vs. TPS
Some guys are obsessed with sports or cars. I follow computer hardware. The PC industry has overclocking instead of nitrous, plexi cases instead of chrome, and RGB lighting as its spinning wheels.
Laurenz Albe: The shibboleth of PostgreSQL
© Laurenz Albe 2020
After all the technical articles I have written, I thought it would be nice to write about PostgreSQL sociology for a change.
Language and communityA community like PostgreSQL has no clearly defined borders. There is no membership certificate; you belong to it if you feel that you belong. That said, you can only get that feeling if you feel accepted.
Bo Peng: Query Load Balancing in Pgpool-II
Asif Rehman: Checkpoints In PostgreSQL
PostgreSQL database writes all changes happening in the database to a log file before it writes them to the actual data files. These log files are called WAL (Write-Ahead Log). Until these changes are flushed to the disk, they are kept in memory and is returned from the memory when it’s asked for. Writing to the data files directly is a costly operation for several reasons and is performed periodically.
Hubert 'depesz' Lubaczewski: How to install and configure PostgreSQL Debian/Ubuntu – for developer use – part 2
Robins Tharakan: What Postgres SQL causes a Table Rewrite?
While developing SQL based applications, it is commonplace to stumble on these 2 questions:
- What DDLs would block concurrent workload?
- Whether a DDL is going to rewrite the table (and in some cases may need ~ 2x disk space)?
Although completely answering Question 1 is beyond the scope of this post, one of the important pieces that helps answering both of these questions is whether a DDL is going to cause a relfilenode change..
Devrim GÜNDÜZ: RPM repository for unsupported PostgreSQL releases / distros
Continue reading "RPM repository for unsupported PostgreSQL releases / distros"