Module scalar_function 

Declaration of built-in (scalar) functions. This module contains built-in functions’ enumeration and metadata.

Generally, a function has:

• a signature

• a return type, that is a function of the incoming argument’s types

• the computation, that must accept each valid signature

• Signature: see Signature

• Return type: a function (arg_types) -> return_type. E.g. for sqrt, (f32) -> f32, (f64) -> f64.

This module also has a set of coercion rules to improve user experience: if an argument i32 is passed to a function that supports f64, it is coerced to f64.

Structs

ScalarFunctionExpr

Physical expression of a scalar function

Traits

PhysicalExprExt

Functions

lambdas_schemas_from_args

map_children_with_lambdas_params 🔒

map_children_with_schema 🔒

sorted_config_entries 🔒