Database interface and 'PostgreSQL' driver for 'R'. This package
provides a Database Interface 'DBI' compliant driver for 'R' to
access 'PostgreSQL' database systems. In order to build and install
this package from source, 'PostgreSQL' itself must be present your
system to provide 'PostgreSQL' functionality via its libraries and
header files. These files are provided as 'postgresql-devel' package
under some Linux distributions. On 'macOS' and 'Microsoft Windows'
system the attached 'libpq' library source will be used.

WWW: https://cran.r-project.org/web/packages/RPostgreSQL/