On 11th of November, Robert Haas committed patch: Generate parallel sequential scan plans in simple cases. Add a new flag, consider_parallel, to each RelOptInfo, indicating whether a plan for that relation could conceivably be run inside of a parallel worker. Right now, we're ...

Some time ago, guys from Instagram shared their approach to generating unique ids on multiple hosts in a way that guarantees (to reasonable extend) uniqueness, and doesn't require any centralized service. Earlier this month, the build benchmarked their solution vs. UUIDs, ...