Module functions

Expand description

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

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.
make_udf_function_with_config: Creates a singleton ScalarUDF of the $UDF function and a function named $NAME which returns that singleton. The function takes a configuration argument of type $CONFIG_TYPE to create the UDF.