Walbouncer was covered on the blog already when it was first announced, but that was almost 2 years ago. So it would be a good time to echo it out again, especially in light of compatibility update to support PostgreSQL 9.5, addition of a helper script for bootstrapping replicas called Walbouncer-companion and making the code […]

During recent years, there has been quite a lot of fuzz about “insert-only” approaches and some database-like products (Datomic, Apache Samza) have emerged, being inspired by the idea of having an immutable datastore. In light of cheap storage and powerful hardware, I see the idea definitely having potential for certain use cases. So why not […]

PostgreSQL has a bagful of server configuration parameters (249 according to my counting for version 9.5) at your disposal, which is mostly a good thing, as it enables to take the maximum out of your hardware if you’re willing to put in the necessary time. But some of the parameters might leave the door open […]

Sometimes it happens that a query slows down dramatically for no obvious reason. In other cases queries go south in case a certain set of input parameters is used. In some of those situations wrong optimizer estimates can be the root cause of all evil. One of my “favorite” issues with wrong planner estimates: Underestimated […]

It happens on a quite regular basis that people contact the CYBERTEC PostgreSQL Support Desk to get  support for a pretty common thing: Paginators on websites. What is the main issue? How hard can be it to display simple tables after all? A typical scenario with paginators Suppose you want to display a table on […]