Fivetran Managed Data Lake Write Credentials: Letting Engines Write to Iceberg and Delta Safely
Data Engineering

Fivetran Managed Data Lake Write Credentials: Letting Engines Write to Iceberg and Delta Safely

By issuing short-lived, directory-scoped credentials against a Polaris-backed REST catalog, MDLS lets engines alter Iceberg and Delta tables without sharing Fivetran's long-lived keys or breaking the write-once metadata model.

Nov 10, 2026 · 6 min read