Lakehouse
ELI5 - The Vibe Check
For years you had to pick a side: a data warehouse, structured, fast, expensive, or a data lake, cheap, flexible, and a mess nobody fully trusted. A lakehouse is the peace treaty, cheap object storage doing the warehouse's job by adding an open table format like Iceberg or Delta Lake on top, so you get warehouse-grade reliability without giving up lake-grade cheapness and flexibility.
Real Talk
A lakehouse is an architecture that combines the low-cost, flexible storage of a data lake with the ACID transactions, schema enforcement, and performance optimizations traditionally found in a data warehouse. It is typically implemented using an open table format (Iceberg, Delta Lake, or Hudi) over files in object storage, queried by multiple engines instead of one proprietary warehouse.
When You'll Hear This
"We're moving off the warehouse to a lakehouse so any engine can query the same data." / "Databricks and Snowflake are both racing to own the lakehouse story."
Related Terms
Apache Iceberg
Imagine a giant folder of Parquet files that used to be pure chaos, nobody knew which files were current, nobody could add a column safely, and two people...
Data Lake
A data lake is a massive storage dump where you throw every piece of data in its raw format. CSV files, JSON, images, logs, whatever.
Data Mesh
Instead of one giant warehouse where ALL the company's data goes (and one poor team manages it), Data Mesh says 'each team owns their own data like it's a
Data Warehouse
A data warehouse is where all your company's data goes to be analyzed.
Delta Lake
Delta Lake is Iceberg's cousin from the Databricks side of the family, same basic idea: bolt ACID transactions and version history onto a pile of Parquet f...