Module utils

Utility functions for the interval arithmetic library

Functions

check_support

Indicates whether interval arithmetic is supported for the given expression. Currently, we do not support all PhysicalExprs for interval calculations. We do not support every type of Operators either. Over time, this check will relax as more types of PhysicalExprs and Operators are supported. Currently, CastExpr, NegativeExpr, BinaryExpr, Column and Literal are supported.

convert_duration_type_to_interval

Converts an Interval of Durations to one of time intervals, if applicable. Otherwise, returns None.

convert_interval_type_to_duration

Converts an Interval of time intervals to one of Durations, if applicable. Otherwise, returns None.

get_inverse_op

is_datatype_supported

Indicates whether interval arithmetic is supported for the given data type.

is_operator_supported

Indicates whether interval arithmetic is supported for the given operator.