Enum Chunk 

pub enum Chunk {
    Hour,
    Day,
    Month,
}

Time partition granularity: how much time one partition covers.

Parses from hour, day or month (and spellings such as 1h, 1 day).

Variants

Hour

One partition per hour.

Day

One partition per day (the default).

Month

One partition per calendar month.

Implementations

impl Chunk

pub fn as_str(self) -> &'static str

The canonical name, as stored in the table properties.

pub fn value(self, micros: i64) -> Result<i32>

Iceberg transform value (hours/days/months since the epoch) of a timestamp in microseconds.

pub fn start_micros(self, value: i32) -> Result<i64>

Start of a partition, in microseconds since the epoch.

pub fn end_micros(self, value: i32) -> Result<i64>

End (exclusive) of a partition, in microseconds since the epoch.

pub fn label(self, value: i32) -> String

Human-readable partition value, used in data file paths (time_day=2026-01-01). Values outside the supported time range fall back to the plain number.

Trait Implementations

impl Clone for Chunk

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Chunk

impl Debug for Chunk

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

Formats the value using the given formatter.

impl Display for Chunk

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

Formats the value using the given formatter.

impl Eq for Chunk

impl FromStr for Chunk

type Err = FormatError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self>

Parses a string s to return a value of this type.

impl Hash for Chunk

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Chunk

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Chunk