Distributed optimization of nested queries
Jacek Skowronek · 1997
It is possible that the components are managed on a host distinct from the database server: we analyze such a situation in Chapter VI. * In the Internet case, the server may aim at servicing as many queries with as little cost as possible, while a client may be interested in either minimizing query response time, or minimizing the usage of its local resources.* We note that other bidding strategies are possible: the consumer may prefer to bid on short allocations, in which the consumer bids on small amount of components, but allocates large markups for them.Such a strategy may, however, lead to multiple bidding rounds, which we try to avoid.* This means that the server cannot participate in query optimization due to other tasks it has to fulfill: for example because it still has to execute the optimized queries.