# Spatial Indexes ### Polyfill a set of polygons with H3 indexes
CARTO DWBigQuerySnowflakeRedshiftPostgreSQLSnowflakeRedshiftPostgreSQLCARTO DW
✅✅✅❌✅
This example demonstrates how to use Workflows to generate an H3 grid from a set of polygons. [**Download example**](https://storage.googleapis.com/carto-workflows-examples/files/h3_polyfill.sql)
### Aggregate point data into a Quadbin grid
CARTO DWBigQuerySnowflakeRedshiftPostgreSQLSnowflakeRedshiftPostgreSQLCARTO DW
✅✅✅✅✅
This example demonstrates how to use Workflows to aggregate data from a set of points into a grid using the Quadbin spatial index. [**Download example**](https://storage.googleapis.com/carto-workflows-examples/files/point_to_quadbin.sql)
### Aggregate point data into an H3 grid
CARTO DWBigQuerySnowflakeRedshiftPostgreSQLSnowflakeRedshiftPostgreSQLCARTO DW
✅✅✅❌✅
This example demonstrates how to use Workflows to aggregate data from a set of points into a grid using the H3 spatial index. [**Download example**](https://storage.googleapis.com/carto-workflows-examples/files/point_to_h3.sql)
### Use H3 KRings to define areas of influence
CARTO DWBigQuerySnowflakeRedshiftPostgreSQLSnowflakeRedshiftPostgreSQLCARTO DW
✅✅✅❌✅
This example demonstrates how to use Workflows to generate areas of influence from a set of points, using the KRing functionality on the Spatial Index category of componentes. In this case using H3. [**Download example**](https://storage.googleapis.com/carto-workflows-examples/files/kring_h3.sql)
--- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://academy.carto.com/creating-workflows/workflow-templates/spatial-indexes.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.