Production Use

Operational patterns for running Branchline in ETL pipelines.

Recommended workflow

1. Commit .bl programs alongside pipeline code.
2. Run Branchline in CI with fixed inputs for regression checks.
3. Enable tracing in staging when introducing new transforms.

Observability

• Use EXPLAIN to trace derived values.
• Add CHECKPOINT labels around expensive steps.
• Use ASSERT to fail fast on invalid data.

Error handling

• Wrap risky logic in TRY/CATCH and return fallbacks.
• Use retry modifiers for transient host failures.

Performance tips

• Cache expensive paths with LET.
• Prefer MAP/FILTER/REDUCE for collections.
• Keep transforms focused; compose multiple transforms if needed.

Related

• TRY/CATCH
• Debug Utilities
• Benchmarks