
Grab migrated its high-volume Counter Service from a wide column database to Aerospike using storage abstraction, shadow traffic, data parity validation, and gradual traffic migration. The redesigned data model consolidated time buckets…


Google has made Spanner Omni generally available, running its distributed SQL database on-premises, across clouds or on a laptop. Doing so meant replacing Colossus with a Colossus-like abstraction layer and TrueTime with software-based…
PostgreSQL 18's new `num_os_semaphores` preset reports how many OS semaphores the server needs—a formula that drifted wrong for twelve years until the… (I consult on PostgreSQL through PGX Inc..)

Last week I ported Apache Cloudberry to PostgreSQL 19 as a set of extensions and described where the port falls behind the original fork. On ClickBench, columnar engines beat it by an order of magnitude. The culprit isn’t the MPP…