An engineer is renaming a column on fct_orders

A medium Pipeline Design interview practice problem on DataDriven. Write and execute real pipeline design code with instant grading.

Domain

Pipeline Design

Difficulty

medium

Problem

An engineer is renaming a column on fct_orders. Without lineage they have no way to know who breaks; without lineage, an engineer debugging a wrong number on the revenue dashboard has no way to know which pipeline to inspect first. The section's two reads of lineage: forward (if this changes, what else changes; the blast radius) and backward (what produced this; the root cause). Sources include the dbt manifest.json (parsed at compile time), query history (observed at runtime), and OpenLineage events (cross-tool). Trace the blast radius by adding a lineage catalog downstream of the dbt build that captures column-level provenance, plus a lineage-query consumer that reads it forward and backward.

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