
Percona ClusterSync for MongoDB (PCSM) replicates data between MongoDB clusters to keep migrations with near-zero downtime. Prior to version 0.9.0 it required the source and target to run the same major version, which ruled out the…

PostgreSQL solves a bootstrapping puzzle with `data_directory`: how to find the config file before knowing where the data lives.

I shared a chart, in 2022, showing where PostgreSQL contributor gifts are mailed to. Here's an updated chart (click to zoom in.) To quickly recap: the PostgreSQL community has been sending gifts to those who contribute directly to a new…
Learn why PostgreSQL reads 16x more data than your queries need, and how a hybrid row-columnar storage layout eliminates the bottleneck without changing your SQL.