Ab Initio - Data Quality Better

Stop cleaning the swamp. Stop building the bridge. Stop the garbage at the gate.

Use tools like pydantic (Python), Great Expectations (with expect_column_values_to_not_be_null set to fatal ), or dbt 's constraints (enforced, not just documented). If the contract fails, the pipe breaks. Loudly. ab initio data quality

Here is why your data pipeline needs an ab initio mindset shift. Reactive DQ is expensive. You pay the cost of ingesting the data, storing it, processing it, and then again for the engineer who backfills it, and again for the analyst who mistrusts the result. Stop cleaning the swamp