In JavaScript
r.table('test')('bidder').nth(0)('increase').run(conn, callback)
In Python and Ruby
r.table('test')['bidder'][0]['increase'].run(conn)
Edit: Queries for all documents
If you need to do more complex things that just returning a value, you can use the general "form" with map
r.table('test').map(function(doc) {
return doc('bidder').nth(0)('increase')
}).run(conn, callback)