Struct FlatRelation 

pub struct FlatRelation {
    pub arity: u32,
    pub row_count: u32,
    pub values: Vec<u64>,
}

One candidate relation as the flat COLUMN-MAJOR buffer the kernel reads.

Column-major is the device law: production relations live as columnar device buffers, so device ingest is a plain D2D copy per column (no host round-trip, no transpose), and threads walking rows of one position read contiguous memory. The cell for (row, position) is values[position * row_count + row] — the SAME indexing formula the CUDA kernel uses; all offsets are in u64 ELEMENTS, never bytes.

Fields

arity: u32

row_count: u32

values: Vec<u64>

Column-major values; length == arity * row_count.

Implementations

impl FlatRelation

pub fn from_rows(rows: &[Vec<u64>], arity: u32) -> Self

Build from row-shaped input (transposes into the columnar law).

Trait Implementations

impl Clone for FlatRelation

fn clone(&self) -> FlatRelation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FlatRelation

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

Formats the value using the given formatter.

impl Eq for FlatRelation

impl PartialEq for FlatRelation

fn eq(&self, other: &FlatRelation) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for FlatRelation