The Feldera Blog

An unbounded stream of technical articles from the Feldera team

Correctness at Feldera

In this blog post, we briefly describe our efforts and development processes that ensure Feldera's engine is correct.

Recursive SQL queries in Feldera

The standard SQL definition for recursion is hard to use and limited in expressivity. Feldera SQL introduces an alternative, more powerful syntax that simplifies recursive computations, enabling mutually recursive views, richer queries, and non-monotone logic without relying on common-table expressions.

Incremental Update 11

Recursive SQL and a new UI design! A quick overview of what's new in v0.31.

Fault tolerance now in preview!

Fault tolerance is now in preview for our enterprise offering! This lets Feldera pipelines survive crashes and machine failures, and resume exactly from where they left off using network-attached or remote storage.

Inspecting Feldera pipelines

We have recently announced the ability of using ad-hoc queries to interact with Feldera pipelines. In this blog post we describe how this feature is implemented.

Incremental Update 10

ROW type! A quick overview of what's new in v0.30.

Feature Wars: SQL vs DSL for Feature Engineering

What's the best language for ML feature engineering: a specialized DSL or a general-purpose language like SQL?

How to Analyze Unbounded Time-Series Data using Bounded State

Learn how Feldera is able to run many complex SQL queries over unbounded time-series data using bounded state.

Incremental Update 9

Emit final! A quick overview of what's new in v0.29.