Module parse

Parser implementations for converting strings to Arrow types

Used by the CSV and JSON readers to convert strings to Arrow types

Macros

parser_primitive 🔒

Structs

Interval 🔒

IntervalAmount 🔒

IntervalParseConfig

Config to parse interval strings

TimestampParser 🔒

Helper for parsing RFC3339 timestamps

Enums

IntervalUnit

Represents the units of an interval, with each variant corresponding to a bit in the interval’s bitfield representation

Constants

EPOCH_DAYS_FROM_CE 🔒

Number of days between 0001-01-01 and 1970-01-01

ERR_NANOSECONDS_NOT_SUPPORTED 🔒

Error message if nanosecond conversion request beyond supported interval

INTERVAL_PRECISION 🔒

Chosen based on the number of decimal digits in 1 week in nanoseconds

NANOS_PER_HOUR 🔒

NANOS_PER_MILLIS 🔒

NANOS_PER_MINUTE 🔒

NANOS_PER_SECOND 🔒

Traits

Parser

Specialized parsing implementations to convert strings to Arrow types.

Functions

is_some_and 🔒

This API is only stable since 1.70 so can’t use it when current MSRV is lower

not_interval_amount 🔒

test if a character is NOT part of an interval numeric amount

parse_date 🔒

parse_decimal

Parse the string format decimal value to i128/i256 format and checking the precision and scale. The result value can’t be out of bounds.

parse_e_notation 🔒

parse_interval_components 🔒

parse the string into a vector of interval components i.e. (amount, unit) tuples

parse_interval_day_time

Parse human-readable interval string to Arrow [IntervalDayTimeType]

parse_interval_month_day_nano

Parse human-readable interval string to Arrow [IntervalMonthDayNanoType]

parse_interval_month_day_nano_config

Parse human-readable interval string to Arrow [IntervalMonthDayNanoType]

parse_interval_year_month

Parse human-readable interval string to Arrow [IntervalYearMonthType]

parse_nanos 🔒

Parse nanoseconds from the first N values in digits, subtracting the offset O

split_interval_components 🔒

Split an interval into a vec of amounts and units.

string_to_datetime

Accepts a string and parses it relative to the provided timezone

string_to_time 🔒

string_to_time_nanoseconds

Accepts a string in ISO8601 standard format and some variants and converts it to nanoseconds since midnight.

string_to_timestamp_nanos

Accepts a string in RFC3339 / ISO8601 standard format and some variants and converts it to a nanosecond precision timestamp.

to_timestamp_nanos 🔒

Fallible conversion of NaiveDateTime to i64 nanoseconds

Type Aliases

MonthDayNano

A tuple representing (months, days, nanoseconds) in an interval