Refactor dbt models without changing consumer output
When one model is hundreds of lines long and nobody dares touch it.
- Transformation
Larger outcome
5 Recipesdbt performance and maintainability
The project you already have, running faster and reading better, without the output moving. Incremental behaviour, bounded backfills, and the safety proof that lets you land any of it.
Convert a full-refresh dbt model to incremental and show the runtime delta
A dbt model is correct but a full refresh is too slow or too expensive to run routinely.
- Transformation
Backfill a bounded date range after a logic change without a full refresh
When a definition changed and months of history need recomputing, but a full refresh would take all weekend.
- Transformation
Author an incremental dbt model with its contract and prove idempotency
When a fact table is too big to rebuild from scratch and has to be incremental from the first version.
- Transformation
Prove an existing dbt change is safe to merge without modifying it
When a pull request changes dbt models and nobody wants to merge it on faith.
- Data quality