|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Objectsimpledb.opt.HeuristicQueryPlanner
public class HeuristicQueryPlanner
A query planner that optimizes using a heuristic-based algorithm.
Constructor Summary | |
---|---|
HeuristicQueryPlanner()
|
Method Summary | |
---|---|
Plan |
createPlan(QueryData data,
Transaction tx)
Creates an optimized left-deep query plan using the following heuristics. |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
---|
public HeuristicQueryPlanner()
Method Detail |
---|
public Plan createPlan(QueryData data, Transaction tx)
createPlan
in interface QueryPlanner
data
- the parsed representation of the querytx
- the calling transaction
|
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |