QFusor: A UDF Optimizer Plugin for SQL Databases. - Konstantinos Chasialis; Theoni Palaiologou; Yannis Foufoulas; Alkis Simitsis; Yannis E. Ioannidis (ICDE, 2024)

UDFBench: A Tool for Benchmarking UDF Queries on SQL Engines. - Yannis Foufoulas; Theoni Palaiologou; Alkis Simitsis (SIGMOD Conference Companion, 2025)