1. A method for receiving parallel result streams for database queries, comprising: in a client, establishing an initiator session with a database server; sending a query from the initiator session to the database server; receiving, at the initiator session, access to a plurality of top-level nodes in a query plan stored on the database server; establishing a plurality of consumer sessions on the client; receiving, at the consumer sessions, a plurality of parallel result streams from the top-level nodes, the parallel result streams including query results for the query; and sending the query results to a plurality of destinations from the consumer sessions.