Federation and the Lakehouse: Two Roads to Unified Data Access, and How to Know Which One to Take

Short summary

A detailed comparison of two approaches to unified enterprise data access: lakehouse consolidation (copy data into one governed store) versus federation (query across sources in place). The author, a Dremio employee, argues both are needed in combination — federate first, promote deliberately. The article includes a decision framework and notes that AI agents increasingly need a single governed data door, raising the stakes for unified access.

• •Lakehouse vs federation are complementary phases, not rivals — federate first, promote deliberately
• •Federation alone hits performance ceilings; lakehouse alone stalls on long-tail migration
• •AI agents need one governed data access point, making unified architecture a prerequisite

Generated with AI, which can make mistakes.