Amazon Athena: Serverless Interactive Query Service — A new serverless, interactive query service on AWS that makes it easy to analyze data stored on S3 using standard SQL.

Announcing the General Availability of MongoDB 3.4 — 3.4 adds a new aggregation pipeline stage for recursive lookups on graph queries, support for the decimal data type, faceted navigation support, and more. Release notes here.

Amazon Adds Postgres Compatibility to Aurora — Aurora began life as a MySQL-compatible high performance cloud database - now it’s compatible with Postgres.

Estimating CPU Per Query With Weighted Linear Regression — It's sometimes impossible to answer what's consuming resources like CPU, IO, & memory in a complex software. This ebook explains how a specialization of ordinary linear regression gives useful answers to seemingly unsolvable database questions.

ToroDB: Open Source NoSQL Database That Runs On Top of A RDBMS — Speaks the MongoDB wire protocol but stores data in an ACID database. There’s also Stampede which can replicate data real time from MongoDB to an SQL database for BI use.

Tera: A High-Perf Distributed NoSQL Database — A project from Baidu billed as ‘an Internet-scale database’ inspired by Google’s BigTable and designed for real-time applications working at up to petabyte scale.

ReasonDB: A Native Syncing Object Database with An SQL Like Syntax — A native JavaScript auto-synchronizing object database with a SQL like syntax and persistence engines for both the browser and Node.

CHAR(16) Conference: A Data Scalability Event in NYC (Dec 6) — Showcasing the significant developments that leading PostgreSQL engineering teams have made in the areas of clustering, high availability and replication. Use code DBW50 for $50 off your ticket price.