Daniel Westermann

2024.pgconf.eu – Bigger than ever, the family is growing fast

The PostgreSQL community is growing every year and the same happens for pgconf.eu, which happened in Athens, Greece, this year. Attending this event is one of the best opportunities to get in touch with the people behind PostgreSQL. This year(…)

Improved not null/null planning in PostgreSQL 17

PostgreSQL 17 came with quite some additional features for the optimizer. One of them is about “is null” and “is not null” handling when column have a “not null” constraint defined. In the past it was(…)

PostgreSQL 18: Tweaking relation statistics

Up to now, there is no official way in PostgreSQL to tweak optimizer statistics manually. While this is quite common in other relational databases, PostgreSQL did not provide anything to do this. The first steps to allow this have now(…)

PostgreSQL 18: REJECT_LIMIT for COPY

With the just released version of 17 of PostgreSQL, copy got the “ON_ERROR” switch. This is very useful if you load something which contains rows that cannot be inserted into the target(…)

PostgreSQL 18: Verify tar format and compressed backups

While PostgreSQL 17 was released just a couple of days ago, the development of PostgreSQL 18 is already going on and the first patches got committed. One of them addresses a limitation with pg_verifybackup: Currently(…)

PostgreSQL: Partitioned tables and optimizer statistics

The PostgreSQL optimizer relies on accurate statistics for finding and executing the most efficient plan for a given statement. Wrong or bad statistics usually lead to sub optimal execution plans and this usually is bad performance wise. This is not(…)

PostgreSQL: pg_dump and extension ownership

While pg_dump must not be considered a backup tool (please use physical backups for this), it is widely used to dump and reload data. One of the main advantages is, that you can do this across major versions of(…)

CloudNativePG – Connecting external applications

Now that we know how we can benchmark a CloudNativePG deployment, it is time to look at how we can connect external applications to the PostgreSQL cluster. Usually, applications run in the same Kubernetes cluster and(…)

CloudNativePG – Benchmarking

Now that we’ve configured our storage in the last post, it is time to benchmark the system. One popular tool when it comes to benchmarking PostgreSQL is pgbench. This can be used(…)

CloudNativePG – Storage

This is the next post in the series about CloudNativePG (the previous one are here, here, here, here, here and(…)