Expand description
Functions related to Materialize’s numeric type, which is largely a wrapper
around rust-dec.
Macros
Structs
The error returned when constructing a
NumericMaxScale from an invalid
value.The
max_scale of a ScalarType::Numeric.Helper struct for representing
Option<NumericMaxScale>.Constants
The maximum number of digits expressable in a
NumericAgg value.The number of internal decimal units in a
NumericAgg value.The value of
NUMERIC_AGG_WIDTH as a u8.The maximum number of digits expressable in a
Numeric value.The number of internal decimal units in a
Numeric value.The value of
NUMERIC_DATUM_WIDTH as a u8.Statics
Traits
Traits to generalize converting
Decimal values to and from their
coefficients’ two’s complements.A type that can represent Real Numbers. Useful for interoperability between Numeric and
floating point.
Functions
Returns a new context appropriate for operating on numeric aggregates.
Returns a new context appropriate for operating on numeric datums.
Returns
n’s precision, i.e. the total number of digits represented by n
in standard notation not including a zero in the “one’s place” in (-1,1).Returns
n’s scale, i.e. the number of digits used after the decimal point.Ensures
Numeric values are:Using negative binary numbers can require more digits of precision than
Numeric offers, so we need to have the option to swap bytes’ signs at the
byte- rather than the library-level.Converts an
Numeric into its big endian two’s complement representation.Converts an
Numeric into a big endian two’s complement representation where
the encoded value has NUMERIC_AGG_MAX_PRECISION digits and a scale of
NUMERIC_DATUM_MAX_PRECISION.Rescale
n as an OrderedDecimal with the described scale, or error if:Rescale’s
n to fit within Numeric’s max precision or error if not
possible.Parses a buffer of two’s complement digits in big-endian order and converts
them to
Decimal<N>.Type Definitions
A numeric value.
A double-width version of
Numeric for use in aggregations.