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ruby-pg / sample / copyto.rb

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#!/usr/bin/env ruby

require 'pg'
require 'stringio'

# An example of how to stream data to your local host from the database as CSV.

$stderr.puts "Opening database connection ..."
conn = PG.connect( :dbname => 'test' )

$stderr.puts "Running COPY command ..."
buf = ''
conn.transaction do
	conn.exec( "COPY logs TO STDOUT WITH csv" )
	$stdout.puts( buf ) while buf = conn.get_copy_data
end

conn.finish