Module datafusion_physical_expr::intervals::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.