Latest data engineering and data science news from TLDR Data

Every issue of the TLDR Data newsletter, newest first. Each issue rounds up the latest data engineering and data science news (data engineering and data science), with every story summarized in a few sentences and linked to its source.

PostHog’s AI Evals 🧪, Polars vs DuckDB 🏁, Jepsen Finds Issues in ParticleDB 💥
How Netflix Debugs with AI 🔍, Database Benchmark Battle 🏁, Privacy at the Access Point 🛂
ChatGPT’s Scaled Storage 🗄️, Query Hugging Face Directly 🤗, Can Agents Really Analyze? 🕵️
DuckDB 2.0 🦆, Shopify’s Specialist Models 🎯, Beyond the Request Queue 🦕
How Cloudflare Scales SQLite 🌐, Mistral Introduces Timestral ⏳, Which LLM for Analytics? 📊
Meta Puts Idle Compute to Work 💤, GitHub Counts Stars Faster ⭐, Claude Dashboard Security 🔐
LinkedIn Gives Agents Context 📚, Claude Dashboards 📊, Salesforce Spark Optimization ⚡
iPhone Beats Databricks 📱, Pinterest's Metrics Board 🧮, Airbnb Replays Production Traffic ⏪
Cloudflare’s Decision Models 🎼, Inside OpenAI’s Data Agent 🧠, DuckDB Inside Aurora 🔗
Claude Kills the Claudisms ✍️, X-ray Your Parquet 🩻, DuckDB 1.5.6 Lands 🦆
Agents Rewire Robot Policies 🤖, Making AI-SQL Much Faster ⚡, Safe Not Safe 🔍
AI Benchmarks Are Broken 💥, Jev Inside Your Warehouse ⚡, Doom Runs on SQL 🎮
System 1 Models for Data ⚡, Postgres Meets Jev 🐘, A 4B Model Beats Postgres 🎯 
LangChain’s Paid Media Agent 🎯, DuckDB Skills for Claude Code 🦆, How Many Labels? 🏷️
Postgres at 118M QPS 🏎️, ChatGPT Work Data Agent 🗣️, Lyft’s Travel-Time Map 🚕
30 Years of Postgres 🐘, Spotify Skips Bayesian 🎧, Kestra 2.0 Ships 🚀
Spotify Cuts Agent Token Usage 📉, How Proxies Help Databases 🚦, Data Teams Are Context Teams 🧑‍🏫
Netflix’s Parallel Spark Tuning 📊, Tracing AI Token Waste 💸, S3 Gets More Duck 🦆
Spark 4.1.0 Released ⚡, How Twilio Tracks Lakehouse Staleness 🚨, Replacing Fivetran at Scale 🔄
DuckLabs Joins AWS 🦆, LinkedIn’s Cognitive Memory Agent 🧠, Chaos Testing Kafka 🌪️