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Arrow Flight SQL is a protocol for interacting with SQL databases using the Arrow in-memory format. It is column-oriented, compact, and extremely performant compared to legacy protocols such as JDBC and ODBC. FlightSQL endpoint is typically exposed as: 
datafusion+flightsql://kamu:kamu@<api-server hostname>:50050?insecure=True
Please refer to Integrations page for some examples of FlightSQL protocol use.
Last modified on March 16, 2026