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Add the data filename as a column

Source: R/dplyr-funcs-augmented.R
add_filename.Rd

This function only exists inside arrow dplyr queries, and it only is valid when quering on a FileSystemDataset.

Usage

add_filename()

Value

A FieldRef

Expression that refers to the filename augmented column.

Examples

if (FALSE) {
open_dataset("nyc-taxi") %>%
  mutate(file = add_filename())
}