dbConnect,GreenplumDriver-method {RGreenplum}

Connect to a Greenplum database.

Description

Manually disconnecting a connection is not necessary with RGreenplum, but still recommended; if you delete the object containing the connection, it will be automatically disconnected during the next GC with a warning.

Usage

## S4 method for signature 'GreenplumDriver'
dbConnect(drv, dbname = NULL, host = NULL,
  port = NULL, password = NULL, user = NULL, service = NULL, ...,
  bigint = c("integer64", "integer", "numeric", "character"))

Arguments

drv

'RGreenplum::Greenplum()'

dbname

Database name. If 'NULL', defaults to the user name. Note that this argument can only contain the database name, it will not be parsed as a connection string (internally, 'expand_dbname' is set to 'false' in the call to ['PQconnectdbParams()'](https://www.postgresql.org/docs/9.6/static/libpq-connect.html)).

host, port

Host and port. If 'NULL', will be retrieved from 'PGHOST' and 'PGPORT' env vars.

user, password

User name and password. If 'NULL', will be retrieved from 'PGUSER' and 'PGPASSWORD' envvars, or from the appropriate line in '~/.pgpass'. See <http://www.postgresql.org/docs/9.6/static/libpq-pgpass.html> for more details.

service

Name of service to connect as. If 'NULL', will be ignored. Otherwise, connection parameters will be loaded from the pg_service.conf file and used. See <http://www.postgresql.org/docs/9.6/static/libpq-pgservice.html> for details on this file and syntax.

...

Other name-value pairs that describe additional connection options as described at <http://www.postgresql.org/docs/9.6/static/libpq-connect.html#LIBPQ-PARAMKEYWORDS>

bigint

The R type that 64-bit integer types should be mapped to, default is [bit64::integer64], which allows the full range of 64 bit integers.