Announcing ksqlDB 0.28.2 and Improvements to ksqlDB in Confluent Cloud

ksqlDB 0.28.2 introduces Confluent Cloud and query-engine enhancements aimed at simplifying setup, improving operational control, and supporting larger streaming workloads. In Confluent Cloud, a topic import wizard can automatically create streams from Kafka topics with Schema Registry schemas, while a new CRUD REST API and Terraform support enable programmatic cluster management through infrastructure-as-code workflows. The release also offers faster provisioning for eligible small clusters, increases the maximum cluster size from 12 to 28 CSUs, and adds preview metrics for consumption, production, offsets, errors, and restarts alongside generally available storage and query saturation metrics. Core additions include EMIT FINAL for emitting one result after a window closes, using a disk-backed implementation intended to avoid memory risks from large aggregation states; PAUSE and RESUME commands for persistent queries; and fourteen trigonometric, inverse trigonometric, and hyperbolic scalar functions, with utilities for radians, degrees, and pi.

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