TimescaleDB 2.27, released May 12 2026, extends bloom-filter batch pruning from reads to writes. UPDATE, DELETE, and UPSERT against compressed columnstore data can now skip decompressing batches that provably cannot contain the target rows. The reported gains are real: up to 160x for selective UPDATE/DELETE, and over 2x for UPSERT. The feature is automatic. Whether it is actually firing on your workload is not something you can assume, and the only way to confirm it is to read new EXPLAIN c...