An interface to PostgreSQL from Julia. Uses libpq (the C PostgreSQL API) and obeys the DBI.jl protocol.

I can no longer spend work time on this so this project is in maintenance mode (accepting PRs and attempting to resolve issues). New code on the dbapi branch represents the most recent work, which I will continue if I am in a position to do so again.

using DBI
using PostgreSQL

conn = connect(Postgres, "localhost", "username", "password", "dbname", 5432)

stmt = prepare(conn, "SELECT 1::bigint, 2.0::double precision, 'foo'::character varying, " *
					 "'foo'::character(10);")
result = execute(stmt)
for row in result
	# code
end

finish(stmt)

disconnect(conn)

using DBI
using PostgreSQL

connect(Postgres, "localhost", "username", "password", "dbname", 5432) do conn
	#code
end

• DBI.jl
• DataFrames.jl >= v0.5.7
• DataArrays.jl >= v0.1.2
• libpq shared library (comes with a standard PostgreSQL client installation)
• julia 0.3

Tests require a local PostgreSQL server with a postgres user/database (installed by default with PostgreSQL server installations) with trusted authentication from localhost.

• Tested on Funtoo Linux and Windows 8
• Should work on other systems provided libpq is avaiable (please file an issue if this is not the case)

• Implement more default PostgreSQL type handling
• Test type handling overrides
• More comprehensive error handling and tests
• Support for COPY

• Asynchronous connection support
• Asynchronous Julia for handling asynchronous connections
• Testing and compatibility with multiple versions of PostgreSQL and libpq