Enum DatePart 

pub enum DatePart {
    Year,
    Month,
    Day,
    Hour,
    Minute,
    Second,
    Millisecond,
    Microsecond,
    Nanosecond,
}

Date or timestamp field named by EXTRACT or DATE_TRUNC.

Variants

Year

Calendar year field.

Month

Calendar month field.

Day

Day of month for extraction, or day boundary for truncation.

Hour

Hour field for extraction, or hour boundary for truncation.

Minute

Minute field for extraction, or minute boundary for truncation.

Second

Second field for extraction, or second boundary for truncation.

Millisecond

Millisecond field for extraction, or millisecond boundary for truncation.

Microsecond

Microsecond field for extraction, or microsecond boundary for truncation.

Nanosecond

Nanosecond boundary for timestamp truncation.

Implementations

impl DatePart

pub const EXTRACT_DATE_FIELDS: [Self; 3]

Fields native EXTRACT reads from a Date32 or a timezone-free timestamp.

pub const EXTRACT_TIME_FIELDS: [Self; 5]

Fields native EXTRACT reads from a timezone-free timestamp only. As in DataFusion, MILLISECOND and MICROSECOND include the whole seconds of the minute, and sub-unit remainders are dropped.

pub const EXTRACT_FIELDS: [Self; 8]

Fields native EXTRACT returns: Self::EXTRACT_DATE_FIELDS and Self::EXTRACT_TIME_FIELDS. NANOSECOND is not native.

pub const DATE_TRUNC_FIELDS: [Self; 7]

Fields native DATE_TRUNC floors a timestamp to: the fixed-duration ones. Calendar months and years are not.

pub fn from_sql_name(name: &str) -> Option<Self>

The field a SQL field name names, ignoring case.

Trait Implementations

impl Clone for DatePart

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 DatePart

impl Debug for DatePart

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

Formats the value using the given formatter.

impl Display for DatePart

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

Formats the value using the given formatter.

impl Eq for DatePart

impl Hash for DatePart

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 DatePart

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DatePart