Engineering posts from the OLake team on database replication, CDC, Apache Iceberg, lakehouse tooling and OLake release news.
OLake Go can now write Iceberg v3 deletion vectors for upserts and CDC. From immutable Parquet and merge-on-read to equality and positional deletes—and why bitmap deletion vectors close the gap with query engines.
Learn how to replicate PostgreSQL CDC data to Apache Iceberg without Spark using Kafka, Flink, or OLake, including setup, architecture, and best practices.
Equality deletes, position deletes, and deletion vectors compared for CDC pipelines: what each stores, which query engines can read them, what compaction fixes, and the table properties to set explicitly.
The Iceberg interoperability myth: how row-level delete support can leave a table readable in Spark but not in Snowflake, on the same catalog and data.
Same Iceberg table, same catalog, same data yet Spark reads it fine while Databricks fails. See what query-engine gaps break cross-engine interoperability.
Explore the best RisingWave alternatives for real-time analytics, stream processing, and streaming databases. Compare features, use cases, and key differences.