How Feldera Works: A True Incremental View Maintenance Engine

2026-06-15

Feldera treats streams as incremental SQL views, using DBSP to propagate deltas instead of recomputing joins and aggregations. Inserts, deletes, and updates become Z-set changes, so only affected rows are updated. The result is batch-SQL-like semantics for continuous pipelines with lower CPU, less memory pressure, and predictable latency.