Module sig

Metadata of expressions.

Modules

• udf 🔒
  UDF implementation interface.

Structs

• CreateFunctionOptions
  Options for creating a function.
• CreateFunctionOutput
  Output of creating a function.
• FuncSign
  A function signature.
• FunctionRegistry
  A set of function signatures.
• UdfImplDescriptor
  UDF implementation descriptor.
• UdfOptions
  Options for building a UDF runtime.

Enums

• FuncBuilder
• FuncName
• SigDataType
  An extended data type that can be used to declare a function’s argument or result type.
• UdfKind

Statics

• FUNCTIONS
  A static distributed slice of functions defined by #[function].
• FUNCTION_REGISTRY
  The global registry of all function signatures.
• UDF_IMPLS
  The global registry of UDF implementations.

Traits

• UdfImpl
  UDF implementation.

Functions

• find_udf_impl
  Find a UDF implementation by language.