Crate datafusion_macros

Attribute Macros

user_doc

This procedural macro is intended to parse a rust custom attribute and create user documentation from it by constructing a DocumentBuilder() automatically. The Documentation can be retrieved from the documentation() method declared on AggregateUDF, WindowUDFImpl, ScalarUDFImpl traits. For doc_section, this macro will try to find corresponding predefined DocSection by label field Predefined DocSection can be found in datafusion/expr/src/udf.rs Example: