ParquetArrowReaderProperties function

ParquetArrowReaderProperties class

This class holds settings to control how a Parquet file is read by ParquetFileReader . class

Factory

The ParquetArrowReaderProperties$create() factory method instantiates the object and takes the following arguments:

• use_threads Logical: whether to use multithreading (default TRUE)

Methods

• $read_dictionary(column_index)
• $set_read_dictionary(column_index, read_dict)
• $use_threads(use_threads)