Module dataframe

Expand description

DataFrame-oriented primitives shared by higher-level crates.

Modules§

dt_convert_time_zone: Convert naive local timestamp micros between fixed-offset time zones.
dt_day: Extract UTC day of month from timestamp micros, in the range 1..=31.
dt_month: Extract UTC month from timestamp micros, in the range 1..=12.
dt_to_string: Format timestamp micros as UTC RFC3339-like text.
dt_weekday: Extract ISO weekday from timestamp micros, where Monday is 1 and Sunday is 7.
dt_year: Extract UTC year from timestamp micros.
explode_list: Explode one list column into values and source row indexes.
implode_by_group_lengths: Implode values into nullable lists according to contiguous group lengths.
list_contains: Return whether each list contains a non-null needle value.
list_join: Join string list elements with a separator.
list_len: Return list lengths while preserving null lists.
str_contains: Return whether each UTF-8 value matches a regular expression pattern.
str_extract: Extract the first regular expression match or capture group from each value.
str_len_chars: Count Unicode scalar values in each UTF-8 value.
str_replace: Replace all regular expression matches in each UTF-8 value.
str_split: Split each UTF-8 value by a literal separator.
str_strip_chars: Strip characters from both ends of each UTF-8 value.
str_to_lowercase: Convert UTF-8 strings to lowercase while preserving nulls.
str_to_uppercase: Convert UTF-8 strings to uppercase while preserving nulls.

BoolColumn: Nullable boolean column used by core DataFrame namespace primitives.
ListColumn: Nullable list column with nullable elements.
TimestampMicrosColumn: Nullable timestamp column using microseconds since Unix epoch.
UIntColumn: Nullable unsigned integer column used by core DataFrame namespace primitives.
Utf8Column: Nullable string column used by core DataFrame namespace primitives.