struct

Crysda::TimestampCol

Inherits Crysda::DataCol / Struct / Value / Object

=========================================================================== TimestampCol - nanosecond precision time column Stores Unix epoch nanoseconds as Int128

Constants

NANO_FORMATS = ["%Y-%m-%d %H:%M:%S.%N", "%Y-%m-%dT%H:%M:%S.%N", "%Y-%m-%dT%H:%M:%S.%NZ", "%d/%m/%Y %H:%M:%S.%N", "%m/%d/%Y %H:%M:%S.%N"]

Nanosecond-level formats for parsing

Constructors

from_epoch_ns(name : String, epochs : Array(Int128 | Nil)) : TimestampCol

Create from array of epoch nanoseconds

Source

new(name : String, val : Array(Time | Nil))

Source

parse(name : String, strings : Array(String | Nil), format : String | Nil = nil) : TimestampCol

Parse strings with nanosecond formats

Source

Instance methods

<(val : Time)

<=(val : Time)

==(val : Time)

>(val : Time)

>=(val : Time)

compare(left : Int32, right : Int32, null_last = true) : Int32

day

day_of_week

day_of_year

each

each_non_null

each_with_index

has_nulls?

hour

max(remove_na = false) : Time

Get max timestamp

Source

microsecond

Source

millisecond

Source

min(remove_na = false) : Time

Get min timestamp

minute

month

nanosecond

second

strftime(format : String) : StringCol

Format as strings

Source

to_datetime(name : String = @name) : DateTimeCol

Source

unsafe_fetch(index : Int32) : Time | Nil

Source

values

Source

year

Extract year component

Source