rcdf (version 0.1.4)

read_parquet_tbl: Read Parquet file as database

Description

This function reads a Parquet file, optionally decrypting it using the provided decryption key. If no decryption key is provided, it reads the file normally without decryption. It supports reading Parquet files as Arrow tables or regular data frames, depending on the as_arrow_table argument.

Usage

read_parquet_tbl(conn, file, decryption_key, table_name = NULL, columns = NULL)

Value

Lazy table from DuckDB connection

Arguments

conn

A DuckDB connection.

file

The file path to the Parquet file.

decryption_key

A list containing aes_key and aes_iv. If provided, the Parquet file will be decrypted using these keys. Default is NULL.

table_name

Database table name. If NULL, file name will be used as table name.

columns

A character vector matching the column names available in the Parquet file.

Examples

if (FALSE) {
# Using sample Parquet files from `mtcars` dataset
dir <- system.file("extdata", package = "rcdf")

# Encrypted
read_parquet_tbl(
  file.path(dir, "mtcars-encrypted.parquet"),
  decryption_key = 'rppqM5CuEqotys4wQq/g7xh6wpIjRozcAIbI9sagwKE='
)
}