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Posts

Category: Kaarel Moppel

22.02.2022 | Kaarel Moppel

Google Cloud PostgreSQL under pgwatch2 monitoring

Pretty often I’m asked – does our PostgreSQL monitoring tool pgwatch2 work with managed cloud database service providers, for example, Google Cloud? Well, the short answer would be – “Yes, we scan!”. But as always – the devil is in the details, and you should be aware of a couple of nuances/extra steps. In order […]

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11.08.2021 | Kaarel Moppel

PostgreSQL vs Redis vs Memcached performance

When I recently stumbled on an article comparing some main properties, and also the read-write performance of two very popular pieces of caching software, often used to speed up applications heavy on database queries, I immediately felt an itch – how would it actually look for PostgreSQL vs Redis vs Memcached on the performance side? […]

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06.07.2021 | Kaarel Moppel

Simulating temporal tables with dblink and replication delay

On some rare occasions, I’ve been asked if Postgres supports system-versioned temporal tables – in other words, time travel on table data for your queries. As quite often with Postgres, thanks to its extensibility, I can answer: well, officially, it does not…but, you can make it work, nevertheless 🙂 Why are people even asking such […]

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15.04.2021 | Kaarel Moppel

Finally – a system level “read all data” role for PostgreSQL!

I don’t usually post about upcoming PostgreSQL features and rather concentrate on tools available / versions released… but this feature got me excited and will certainly be a huge relief for real-life usage, especially for beginners! I had almost lost hope we might see this day – but after many years of wishing for it, […]

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11.03.2021 | Kaarel Moppel

Running Postgres in Docker – why and how?

The big question we hear quite often is, “Can and should we run production Postgres workloads in a Docker? Does it work?” The answer in short: yes, it will work… if you really want it to… or if it’s all only fun and play, i.e. for throwaway stuff like testing. Containers, commonly also just called […]

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26.01.2021 | Kaarel Moppel

Postgres scaling advice for 2021

So, you’re building the next unicorn startup and are thinking feverishly about a future-proof PostgreSQL architecture to house your bytes? My advice here, having seen dozens of hopelessly over-engineered / oversized solutions as a database consultant over the last 5 years, is short and blunt: Don’t overthink, and keep it simple on the database side! […]

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19.01.2021 | Kaarel Moppel

Tips and tricks to kick-start the Postgres year 2021

I decided to start out this year by looking into my notes from last year and extracting from them a small set of Postgres tips for you. This might not be, strictly speaking, fresh news… but I guess the average RAM of tech workers is about 64KB or so nowadays, so some repetition might not […]

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25.11.2020 | Kaarel Moppel

Insert-only data modelling to smooth peaks on slow disks

A few years ago, I wrote a short post on a similar topic; since then, I’ve often seen that the whole concept of suggesting to do more INSERT-s in critical parts of the code seems pretty strange to most customers. It’s even alien to those who are not new to databases in general. So I […]

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03.11.2020 | Kaarel Moppel

Having a 2nd look at Postgres v13 improvements

Version 13 has been out there for over a month by now and the most important stuff has already been well digested… but luckily (or not) there’s so much non-major stuff in every release! This becomes quite evident when looking at the release notes with its 150 items of change or peeking at the great […]

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29.09.2020 | Kaarel Moppel

A quick look at PostgreSQL 13 RC1 query performance

If you read this blog post the new PostgreSQL version will be probably already officially released to the public for wider usage…but seems some eager DBA already installed the last week’s Release Candidate 1 and took it for a spin 😉 The “spin” though takes 3 days to run for my scripts, so that’s the […]

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15.01.2020 | Kaarel Moppel

Tips and tricks to kick-start Postgres year 2020

Quite often when visiting customers or doing trainings, I see that people are quite happy seeing and learning about some little time-saving PostgreSQL tricks, commands or SQL snippets on the screen and they usually ask to slow down and explain or just say “wow, didn’t know you could do that”. As these tips and tricks […]

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04.11.2019 | Kaarel Moppel

PostgreSQL v12 initial query performance impressions

  With the latest major version freshly released, it’s again time to gauge its performance. I’ve already been doing this for years, and I have my scripts ready, so it’s not too much work for me – but rather, for the machines. The v12 release, as always, adds quite a lot of nice stuff. Some […]

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