FeatherReader: FeatherReader class

In arrow: Integration to 'Apache' 'Arrow'

FeatherReader class

Description

This class enables you to interact with Feather files. Create one to connect to a file or other InputStream, and call Read() on it to make an arrow::Table. See its usage in read_feather().

Factory

The FeatherReader$create() factory method instantiates the object and takes the following argument:

• file an Arrow file connection object inheriting from RandomAccessFile.

Methods

• ⁠$Read(columns)⁠: Returns a Table of the selected columns, a vector of integer indices

• ⁠$column_names⁠: Active binding, returns the column names in the Feather file

• ⁠$schema⁠: Active binding, returns the schema of the Feather file

• ⁠$version⁠: Active binding, returns 1 or 2, according to the Feather file version

arrow documentation built on Nov. 25, 2023, 1:09 a.m.