# Remapping: Extract and Map Log Attributes

> Use the Remapping pre-ingestion pipeline to transform data into the desired format or structure for your use case.

Source: https://last9.io/changelog/remapping-extract-and-map-log-attributes/

Last9 now support a new Ingestion-level pipeline: [Remapping](https://app.last9.io/control-plane/remapping). This can be useful for transforming your data into the desired format or structure for your use case.

- **Extract** labels and their values from a log line body to be mapped either into Log Attributes or Resource Attributes
  - Choose `Upsert` (the default option) when only the latest state and value matters, storage efficiency is important, and want to avid duplicate attributes
  - Choose `Insert` if you need audit trails, the historical value changes are important, and storage isn’t a concern
  - You can also preview the last 2 mins of ingested log lines based on the extract and remap configurations
- **Map** service or severity to attributes and their values
  - The mapped values are then available as filters
  - You can also preview the last 2 mins of ingested log lines based on the extract and remap configurations