Struct mz_persist_types::dyn_struct::ValidityMut

pub struct ValidityMut {
    len: usize,
    validity: Option<BooleanBufferBuilder>,
}

A new-type wrapper for a mutable arrow validity column.

The arrow crate has an optimization where the validity column can be elided if every value is true. This is the common case for the Ok struct of our SourceData, so seems worth opting in to ourselves.

Fields

len: usize

validity: Option<BooleanBufferBuilder>

Implementations

impl ValidityMut

pub fn push(&mut self, valid: bool)

Pushes whether a column of optional structs is Some at the given index. If this is false, the contents of the struct’s component fields at idx can be anything.

pub fn into_parts(self) -> (usize, Option<BooleanBufferBuilder>)

Consumes self returning the inner parts.

Trait Implementations

impl Debug for ValidityMut

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

Formats the value using the given formatter.