Module functions

re-export of datafusion_functions crate

Modules

core

Core datafusion expressions These are always available and not controlled by a feature flag “core” DataFusion functions

crypto

“crypto” DataFusion functions

datetime

Date and time expressions. Contains functions such as to_timestamp Enabled via feature flag datetime_expressions date & time DataFusion functions

encoding

Encoding expressions. Contains Hex and binary encode and decode functions. Enabled via feature flag encoding_expressions

expr_fn

Fluent-style API for creating Exprs

macros

math

Mathematical functions. Enabled via feature flag math_expressions “math” DataFusion functions

planner

SQL planning extensions like UserDefinedFunctionPlanner

regex

Regular expression functions. Enabled via feature flag regex_expressions “regex” DataFusion functions

string

“string” DataFusion functions

strings

unicode

“unicode” DataFusion functions

utils

Macros

downcast_arg

Downcast an argument to a specific array type, returning an internal error if the cast fails

downcast_named_arg

Downcast a named argument to a specific array type, returning an internal error if the cast fails

export_functions

macro that exports a list of function names as:

make_udf_function

Creates a singleton ScalarUDF of the $UDF function and a function named $NAME which returns that singleton.

Functions

all_default_functions

Return all default functions

register_all

Registers all enabled packages with a FunctionRegistry