DATA-PIPELINE-ENGINEERING5 MIN READ
Break schemas with notice, not surprise
Choose a schema-change response that protects downstream consumers while allowing upstream evolution.
A source team wants to rename customer_id to buyer_id this Friday. The field is used by two marts, one reverse ETL sync, and a churn model. The new name is better, but the old name is still the downstream contract.
Read the full lesson
Sign up free — one personalized lesson every day, matched to your role and goals.
Already have an account? Sign in