What Is Delta Lake? Complete Beginner’s Guide Before formats like Delta Lake existed, a “data lake” was really just a folder of Parquet or CSV files in cloud storage, and that folder had none of the guarantees you’d expect from an actual database table. A […]
Apache Hudi Tutorial for Beginners Apache Iceberg and Delta Lake both solve the “a folder of files isn’t a table” problem well, but neither one started life solving the specific problem Apache Hudi was built around: how do you continuously stream row-level changes, inserts, updates, […]
Apache Iceberg vs Delta Lake Both formats set out to solve the same problem: a folder of Parquet files in object storage isn’t a table, it has no atomic writes, no consistent view during concurrent access, and no schema guarantees. Apache Iceberg and Delta Lake […]
Apache Iceberg Architecture Explained Creating a table, inserting some rows, and running a time-travel query gets you comfortable with Iceberg’s basic shape fast. What doesn’t show up in that first hour is the machinery that makes updates and deletes actually correct under concurrent writers, why […]
Apache Iceberg Tutorial for Beginners For years, a “data lake” table meant a folder full of Parquet files and a lot of hope. There was no real schema enforcement, no way to safely have two jobs write to the same table at once, and adding […]
Trino vs Presto: Key Differences Ask why there are two nearly-identically-named distributed SQL engines with a shared ancestor, and you’ll get an answer rooted in a 2019 governance dispute rather than a genuine technical disagreement. Today, years after that split, Trino and Presto have grown […]
Trino Architecture Explained Running your first query against Trino feels almost anticlimactic. You type SQL, you get a result back, it looks exactly like querying any other database. What’s actually happening between those two moments, though, is a small distributed system assembling itself on the […]
What Is Trino? Complete Guide for Beginners Most companies past a certain size end up with data scattered across a dozen systems that were never meant to talk to each other. Customer records sit in PostgreSQL. Event data lands in S3 as Parquet files. Product […]
Infisical vs HashiCorp Vault Every team that outgrows .env files eventually lands on this exact comparison. HashiCorp Vault has been the reference implementation for secrets management for over a decade, deep enough to do almost anything, complicated enough that “almost anything” comes with a real […]
What Is Infisical? Complete Guide Most engineering teams don’t set out to build a secrets management strategy. It happens by accident, one .env file at a time, until someone pastes a production database password into Slack to unblock a teammate, and everyone in the channel […]