Struct dbkit_engine::block::Column

pub struct Column<'alloc> {
    // some fields omitted
}

Typed Data Column. Contains a vector of column rows, and optionally a nul vector.

Knows its capacity but not size, has no concept of current. Those properties are fulfilled by it's parent container (types such as Block).

Methods

impl<'alloc> Column<'alloc>

fn mut_nulls(&mut self) -> Result<MutBoolBitmap, DBError>

fn rows_mut<T: TypeInfo>(&mut self) -> Result<&mut [T::Store], DBError>

fn set_capacity(&mut self, rows: RowOffset) -> Option<DBError>

Change the capacity of the Column

Trait Implementations

impl<'alloc> RefColumn<'alloc> for Column<'alloc>

fn attribute(&self) -> &Attribute

fn capacity(&self) -> usize

Row capacity

unsafe fn rows_ptr(&self) -> *const u8

Pointer to the beginning of the raw row data

unsafe fn nulls_ptr(&self) -> *const u8

Pointer to the beginning of the raw row data

fn rows_raw_slice(&'alloc self) -> &'alloc [u8]

Will panic if there's no row data

fn nulls_raw_slice(&'alloc self) -> &'alloc [u8]

Will panic if there's no null data