Struct Datum

#[non_exhaustive]
pub struct Datum {
    pub scalar_value: Option<String>,
    pub time_series_value: Option<Vec<TimeSeriesDataPoint>>,
    pub array_value: Option<Vec<Datum>>,
    pub row_value: Option<Row>,
    pub null_value: Option<bool>,
}

Datum represents a single data point in a query result.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

scalar_value: Option<String>

Indicates if the data point is a scalar value such as integer, string, double, or Boolean.

time_series_value: Option<Vec<TimeSeriesDataPoint>>

Indicates if the data point is a timeseries data type.

array_value: Option<Vec<Datum>>

Indicates if the data point is an array.

row_value: Option<Row>

Indicates if the data point is a row.

null_value: Option<bool>

Indicates if the data point is null.

Implementations

impl Datum

pub fn scalar_value(&self) -> Option<&str>

Indicates if the data point is a scalar value such as integer, string, double, or Boolean.

pub fn time_series_value(&self) -> &[TimeSeriesDataPoint]

Indicates if the data point is a timeseries data type.

If no value was sent for this field, a default will be set. If you want to determine if no value was sent, use .time_series_value.is_none().

pub fn array_value(&self) -> &[Datum]

Indicates if the data point is an array.

If no value was sent for this field, a default will be set. If you want to determine if no value was sent, use .array_value.is_none().

pub fn row_value(&self) -> Option<&Row>

Indicates if the data point is a row.

pub fn null_value(&self) -> Option<bool>

Indicates if the data point is null.

impl Datum

pub fn builder() -> DatumBuilder

Creates a new builder-style object to manufacture Datum.

Trait Implementations

impl Clone for Datum

fn clone(&self) -> Datum

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Datum

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

Formats the value using the given formatter.

impl PartialEq for Datum

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

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

const 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 Datum