Treat your schema like an API. Learn which changes are safe or breaking, the additive-only pattern, schema versioning, and contract checks between pipelines.
An idempotent pipeline gives the same result no matter how often it runs. Use partition overwrite, MERGE upserts, and dedup to make retries and backfills safe.
Why data quality is a pipeline problem, not a dashboard problem : six dimensions of quality, validation strategies, and monitoring patterns.
Reliable pipelines come from architecture, not bug fixes. Covers the four pipeline layers, building DAGs instead of scripts, dependencies, and failure handling.
