Neues vom PostgreSQL Planet

New post up on on the ClickHouse blog:

New post up on on the ClickHouse blog:

I wanted to optimize away parsing the key/value pairs from the [pg_clickhouse] pg_clickhouse.session_settings GUC for every query by pre-parsing it on assignment and assigning it to a separate variable. It took a few tries, as the GUC API requires quite specific memory allocation for extra data to work properly. It took me a few tries to land on a workable and correct solution.

With PostgreSQL 18 introducing built-in OAuth 2.0 and OpenID Connect (OIDC) authentication, tools like pg_oidc_validator have become an essential part of the ecosystem by enabling server-side verification of OIDC tokens directly inside PostgreSQL. If you’re new to the topic, make sure to read our earlier posts explaining the underlying concepts and the need for external validators:

Everyone wants high availability, and that’s completely understandable. When an app goes down, users get frustrated, business stops, and pressure builds.

But here’s the challenge: high availability often feels like a big monster. Many people think, If I need to set up high availability, I must master every tool involved. And there’s another common belief too: Open-source tools are not enough for real HA, so I must buy paid tools.

A useful new feature was introduced on 11 December 2025: Allow expiration of the oldest full backup regardless of current retention. Details are available in commit bf2b276.

One of the principal and most powerful components of the pgEdge Agentic AI Toolkit is the pgEdge Postgres MCP Server. In just over a year MCP (Model Context Protocol), initially developed by Anthropic, has become the standard way to connect LLMs to external data sources and tools.