src_presto: dplyr integration to connect to a Presto database.

In RPresto: DBI Connector to Presto

dplyr integration to connect to a Presto database.

Description

Allows you to connect to an existing database through a presto connection.

Usage

src_presto(
  catalog = NULL,
  schema = NULL,
  user = NULL,
  host = NULL,
  port = NULL,
  source = NULL,
  session.timezone = NULL,
  parameters = NULL,
  bigint = c("integer", "integer64", "numeric", "character"),
  con = NULL,
  ...
)

Arguments

catalog	Catalog to use in the connection
schema	Schema to use in the connection
user	User name to use in the connection
host	Host name to connect to the database
port	Port number to use with the host name
source	Source to specify for the connection
session.timezone	Time zone for the connection
parameters	Additional parameters to pass to the connection
bigint	The R type that Presto's 64-bit integer (BIGINT) types should be translated to. The default is "integer", which returns R's integer type, but results in NA for values above/below +/-2147483647. "integer64" returns a bit64::integer64, which allows the full range of 64 bit integers. "numeric" coerces into R's double type but might result in precision loss. Lastly, "character" casts into R's character type.
con	An object that inherits from PrestoConnection, typically generated by DBI::dbConnect. When a valid connection object is supplied, Other arguments are ignored.
...	For src_presto other arguments passed on to the underlying database connector dbConnect. For tbl.src_presto, it is included for compatibility with the generic, but otherwise ignored.

Examples

## Not run: 
# To connect to a database
my_db <- src_presto(
  catalog = "memory",
  schema = "default",
  user = Sys.getenv("USER"),
  host = "http://localhost",
  port = 8080,
  session.timezone = "Asia/Kathmandu"
)
# Use a PrestoConnection
my_con <- DBI::dbConnect(
  catalog = "memory",
  schema = "default",
  user = Sys.getenv("USER"),
  host = "http://localhost",
  port = 8080,
  session.timezone = "Asia/Kathmandu"
)
my_db2 <- src_presto(con = my_con)

## End(Not run)

RPresto documentation built on April 3, 2025, 11:40 p.m.