parquetize (version 0.5.7)

check_parquet: Check if parquet file or dataset is readable and return basic informations

Description

This function checks if a file/dataset is a valid parquet format. It will print the number of lines/columns and return a tibble on columns information.

Usage

check_parquet(path)

Value

a tibble with information on parquet dataset/file's columns with three columns : field name, arrow type and nullable

Arguments

path

path to the file or dataset

Details

This function will :

* open the parquet dataset/file to check if it's valid * print the number of lines * print the number of columns * return a tibble with 2 columns :

* the column name (string) * the arrow type (string)

You can find a list of arrow type in the documentation on this page.

Examples

# check a parquet file
check_parquet(parquetize_example("iris.parquet"))

# check a parquet dataset
check_parquet(parquetize_example("iris_dataset"))