Struct DecimalColumn 

pub struct DecimalColumn<'a> { /* private fields */ }

Borrowed view over a DECIMAL64, DECIMAL128, or DECIMAL256 column.

The mantissas remain in their decoded little-endian two’s-complement representation. This view does not convert or copy them, and it preserves the physical QWP width exposed by kind.

Implementations

impl<'a> DecimalColumn<'a>

pub fn kind(&self) -> ColumnKind

Physical QWP decimal kind.

pub fn byte_width(&self) -> u8

Mantissa width in bytes: 8, 16, or 32.

pub fn max_precision(&self) -> u8

Maximum SQL precision represented by this physical width.

This is 18, 38, or 76. It is not necessarily the result expression’s declared precision because QWP carries the physical kind, not the exact SQL precision.

pub fn scale(&self) -> i8

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn validity(&self) -> Validity<'a>

pub fn is_null(&self, row: usize) -> bool

pub fn raw(&self) -> &'a [u8]

Dense mantissa bytes for the complete column, including NULL slots.

pub fn mantissa_le(&self, row: usize) -> &'a [u8]

Little-endian two’s-complement mantissa bytes for row.

Check is_null before interpreting the bytes. Like the width-specific decimal accessors, this returns the decoded slot even when the row is NULL.

Panics

Panics if row >= self.len().

Trait Implementations

impl<'a> Clone for DecimalColumn<'a>

fn clone(&self) -> DecimalColumn<'a>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Copy for DecimalColumn<'a>

impl<'a> Debug for DecimalColumn<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.