credativ® Blog
Here you will find interesting news about industry-specific topics and us.
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15 December 2025
PostgreSQL 18 Asynchronous Disk I/O - Deep Dive Into Implementation
PostgreSQL 17 introduced streaming I/O – grouping multiple page reads into a single system call and using smarter posix_fadvise() hints. That alone gave up to ~30% faster sequential scans in some workloads, but it was still strictly synchronous: each backend process would issue a read and then sit there waiting for the kernel to return […]
10 December 2025
Renewing Our Commitment: credativ Returns to the Linux Foundation as a Silver Member
credativ is once again a Silver Member of the Linux Foundation. For us, this is not a symbolic gesture but a deliberate decision. For more than two decades, we have been working at the heart of open-source infrastructure – as a support center, as contributors, and as operators of critical services. Now that credativ […]
05 December 2025
A deeper look at old UUIDv4 vs new UUIDv7 in PostgreSQL 18
In the past there have been many discussions about using UUID as a primary key in PostgreSQL. For some applications, even a BIGINT column does not have sufficient range: it is a signed 8‑byte integer with range −9,223,372,036,854,775,808 to +9,223,372,036,854,775,807. Although these values look big enough, if we think about web services that collect billions […]
10 November 2025
Representing credativ at PostgreSQL Conference Europe 2025
The European PostgreSQL Conference (PGConf.EU) is one of the largest PostgreSQL events worldwide. In this year it was held 21–24 October in Riga, Latvia. Our company, credativ GmbH, was a bronze sponsor of the conference, and I had the privilege to represent credativ with my talk “Database in Distress: Testing and Repairing Different Types of […]