![DataFusion Logo](_images/2x_bgwhite_original.png)
Apache DataFusion¶
DataFusion is a very fast, extensible query engine for building high-quality data-centric systems in Rust, using the Apache Arrow in-memory format.
DataFusion offers SQL and Dataframe APIs, excellent performance, built-in support for CSV, Parquet, JSON, and Avro, extensive customization, and a great community.
The example usage section in the user guide and the datafusion-examples code in the crate contain information on using DataFusion.
Please see the developer’s guide for contributing and communication for getting in touch with us.
ASF Links
User Guide
Library User Guide
- Introduction
- Using the SQL API
- Working with
Expr
s - Using the DataFrame API
- Write DataFrame to Files
- Building Logical Plans
- Catalogs, Schemas, and Tables
- Adding User Defined Functions: Scalar/Window/Aggregate/Table Functions
- Custom Table Provider
- Extending DataFusion’s operators: custom LogicalPlan and Execution Plans
- Profiling Cookbook