Blog
Notes from the team.
Engineering deep-dives, benchmarks, and release announcements.
Iceberg CDC Merge on Read for Every Query Engine
Equality deletes break Merge on Read on Snowflake and Databricks. Supermetal now emits deletion vectors from a disk-backed primary key index instead. Plus hidden partitioning and append-only history tables.
Announcing MotherDuck and DuckDB Targets
Real-time change data capture to DuckDB over Quack, MotherDuck over Postgres endpoint, with DuckLake support.
Announcing Apache Doris Target
Direct CDC from operational databases to VeloDB Cloud and Apache Doris with native Merge-on-Write.
Announcing Supermetal Apache Iceberg Target
Single process CDC to Iceberg V3 with variant type. Compatible with S3 Tables, R2, Glue, and REST catalogs.
Benchmarking SQL Server CDC to ClickHouse
Up to 7x faster than Fivetran and Airbyte.
Benchmark: Supermetal vs Debezium vs Flink CDC
Independent benchmark shows 2x snapshot throughput with half the CPU and memory
Announcing Supermetal Kafka Target
Drop-in Debezium replacement for Kafka CDC. Same messages, same schemas.
Introducing Supermetal
Data replication that just works