Latest posts
Fun with pg_checksums
Data checksums are a great feature in PostgreSQL. They are used to detect any corruption of the data that Postgres stores on disk. Every system we develop at Crunchy Data has this feature enabled by default. It's not only Postgres itself that can make use of these checksums.
10 min read
PostgreSQL on Linux: Counting Committed Memory
By default Linux uses a controversial (for databases) memory extension feature called Overcommit. How that interacts with PostgreSQL is covered in the Managing Kernel Resources section of the PG manual.
6 min read
Better Range Types in Postgres 14: Turning 100 Lines of SQL Into 3
Almost a decade after range types were introduced, Postgres 14 makes it easier to write "boring SQL" for range data. Meet the "multirange" data type.
5 min read
Devious SQL: Run the Same Query Against Tables With Differing Columns
We spend time day in, day out, answering the questions that matter and coming up with solutions that make the most sense. However, sometimes a question comes up that is just so darn … interesting that even if there are sensible solutions or workarounds, it still seems like a challenge just to take the request literally. Thus was born this blog series, Devious SQL. (Devious - longer and less direct than the most straightforward way.)
6 min read
Better JSON in Postgres with PostgreSQL 14
A feature highlight of the new JSON subscript support within PostgreSQL 14.
5 min read
Simulating UPDATE or DELETE with LIMIT in Postgres: CTEs to The Rescue!
There have certainly been times when using PostgreSQL, that I’ve yearned for an UPDATE or DELETE statement with a LIMIT feature. While the SQL standard itself has no say in the matter as of SQL:2016, there are definite cases of existing SQL database dialects that support this.
10 min read
PGO 4.7, the Postgres Operator: PVC Resizing, GCS Backups, and More
We're excited to announce the new version of PGO, the open source Postgres Operator from Crunchy Data version 4.7! There's a lot of really cool features that make it easy to deploy production Postgres clusters on Kubernetes.
5 min read
Waiting for PostGIS 3.2: ST_InterpolateRaster
A common situation in the spatial data world is having discrete measurements of a continuous variable. Every place in the world has a temperature, but there are only a finite number of thermometers - how should we reason about places without thermometers and how should we model temperature?
4 min read
TLS for Postgres on Kubernetes: OpenSSL CVE-2021-3450 Edition
Not too long ago I wrote a blog post about how to deploy TLS for Postgres on Kubernetes in attempt to provide a helpful guide from bringing your own TLS/PKI setup to Postgres clusters on Kubernetes. In part, I also wanted a personal reference for how to do it!
7 min read
Creating a Read-Only Postgres User
Learn how to create a read only user in Postgres both now and with a look ahead to Postgres 14.
7 min read
(The Many) Spatial Indexes of PostGIS
The simple story of spatial indexes is - if you are planning to do spatial queries (which, if you are storing spatial objects, you probably are) you should create a spatial index for your table.
6 min read
Using Kubernetes? Chances Are You Need a Database
Whether you are starting a new development project, launching an application modernization effort, or engaging in digital transformation, chances are you are evaluating Kubernetes. If you selected Kubernetes, chances are you will ultimately need a database.
4 min read
Choice of Table Column Types and Order When Migrating to PostgreSQL
An underappreciated element of PostgreSQL performance can be the data types chosen and their organization in tables. For sites that are always looking for that incremental performance improvement, managing the exact layout and utilization of every byte of a row (also known as a tuple) can be worthwhile.
9 min read
Announcing Google Cloud Support for Crunchy Bridge
Crunchy Data, the leading provider of trusted open source PostgreSQL, is proud to announce the addition of Google Cloud Platform (GCP) to its list of providers supported on Crunchy Bridge.
4 min read
Your Guide to Connection Management in Postgres
Connection pooling and management is one of those things most people ignore far too long when it comes to their database. As you grow into the hundreds, better connection management is a quick and easy win. Let's dig into the three variations of connection pooling and how to identify if you can benefit from a connection pooler and where.
5 min read
Postgres is Out of Disk and How to Recover: The Dos and Don'ts
The ultimate goal for any unplanned database interruption is to reduce data loss. So the advice here is aimed at someone in a production situation prioritizing minimizing data loss.
12 min read
Introducing pgBackRest Multiple Repository Support
The pgBackRest team is pleased to announce the introduction of multiple repository support in v2.33. Backups already provide redundancy by creating an offline copy of your PostgreSQL cluster that can be used in disaster recovery.
5 min read
Announcing Google Cloud Storage (GCS) Support for pgBackRest
Today we're announcing Crunchy Bridge support for Managed Postgres on Google Cloud. With Crunchy Bridge you can now have the same great PostgreSQL experience on any cloud and seamlessly migrate between cloud vendors as you see fit.
2 min read
Database Terminology Explained: Postgres High Availability and Disaster Recovery
What follows is a summary of conversations I've had with customers on how to think about key tenants of database management, high availability and disaster recovery.
Is Postgres Secure?
This post provides a framework for thinking through how you can confront "security questions" as you embark on your Postgres journey.
6 min read
