RAthena_options: A method to configure RAthena backend options.
In RAthena: Connect to 'AWS Athena' using 'Boto3' ('DBI' Interface)

RAthena_options

R Documentation

A method to configure RAthena backend options.

Description

RAthena_options() provides a method to change the backend. This includes changing the file parser, whether RAthena should cache query ids locally and number of retries on a failed api call.

Usage

RAthena_options(
  file_parser,
  bigint,
  binary,
  json,
  cache_size,
  clear_cache,
  retry,
  retry_quiet,
  unload,
  clear_s3_resource,
  verbose
)

Arguments

`file_parser`	Method to read and write tables to Athena, currently default to `"data.table"`. The file_parser also determines the data format returned for example `"data.table"` will return `data.table` and `"vroom"` will return `tibble`.
`bigint`	The R type that 64-bit integer types should be mapped to (default: `"integer64"`). Inbuilt `bigint` conversion types ["integer64", "integer", "numeric", "character"].
`binary`	The R type that [binary/varbinary] types should be mapped to (default `"raw"`). Inbuilt binary conversion types ["raw", "character"].
`json`	Attempt to converts AWS Athena data types [arrays, json] using `jsonlite:parse_json` (default: `"auto"`). Inbuilt json conversion types ["auto", "character"]. Custom Json parsers can be provide by using a function with data frame parameter.
`cache_size`	Number of queries to be cached. Currently only support caching up to 100 distinct queries (default: `0`).
`clear_cache`	Clears all previous cached query metadata
`retry`	Maximum number of requests to attempt (default: `5`).
`retry_quiet`	This method is deprecated please use verbose instead.
`unload`	set AWS Athena unload functionality globally (default: `FALSE`)
`clear_s3_resource`	Clear down 'AWS Athena' 'AWS S3' resource (`s3_staging_dir` location). This is useful for users that don't have the 'AWS IAM role' permissions delete from 's3_staging_dir' (default: `TRUE`)
`verbose`	print package info messages (default: `TRUE`)

Value

RAthena_options() returns NULL, invisibly.

Examples

library(RAthena)

# change file parser from default data.table to vroom
RAthena_options("vroom")

# cache queries locally
RAthena_options(cache_size = 5)

RAthena documentation built on Dec. 28, 2022, 1:19 a.m.