Struct pgrx_pg_sys::submodules::datum::NullableDatum

#[repr(C)]
pub struct NullableDatum {
    pub value: Datum,
    pub isnull: bool,
}

This struct consists of a Datum and a bool, matching Postgres’s definition as of Postgres 12. This isn’t efficient in terms of storage size, due to padding, but sometimes it’s more cache-friendly, so sometimes it is the preferred type.

Fields

value: Datum

isnull: bool

Trait Implementations

impl Clone for NullableDatum

fn clone(&self) -> NullableDatum

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for NullableDatum

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

Formats the value using the given formatter.

impl From<NullableDatum> for Option<Datum>

fn from(nd: NullableDatum) -> Option<Datum>

Converts to this type from the input type.

impl TryFrom<NullableDatum> for Datum

type Error = ()

The type returned in the event of a conversion error.

fn try_from(nd: NullableDatum) -> Result<Datum, ()>

Performs the conversion.

impl Copy for NullableDatum