Analyze Lineage

To analyze field dependencies in a dbt semantic layer, you trace the upstream warehouse columns a field relies on and identify downstream charts and reports. This reveals the full data lineage to prevent breaking changes.

Yes, you can check which Lightdash charts will break before deleting a metric by running an impact analysis. This process identifies all downstream reports referencing the specific semantic layer field to ensure safe modifications.

Data lineage analysis for semantic layer fields is the process of mapping upstream data sources and downstream usage. It identifies warehouse column dependencies and associated charts to prevent accidental data corruption during field modifications.

You trace upstream warehouse columns for a Lightdash metric by performing dependency mapping. This identifies the exact source data sources the semantic layer field relies on, ensuring you understand the full data lineage before making changes.

This lineage analysis specifically utilizes Lightdash tools for comprehensive tracing and impact assessment. It is designed for the dbt semantic layer within the Lightdash environment to map field dependencies and evaluate modification risks.