# Work with geospatial data in AWS Glue
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AWS Glue does not natively support Well-known Text (WKT), Well-Known Binary (WKB), or other PostGIS data types. The AWS Glue classifier parses geospatial data and classifies them using supported data types for the format, such as `varchar` for CSV. As with other AWS Glue tables, you may need to update the properties of tables created from geospatial data to allow Athena to parse these data types as-is. For more information, see [Use a crawler to add a table](schema-crawlers.md) and [Work with CSV data in AWS Glue](schema-csv.md). Athena may not be able to parse some geospatial data types in AWS Glue tables as-is. For more information about working with geospatial data in Athena, see [Query geospatial data](querying-geospatial-data.md).