simpledb.planner
Interface QueryPlanner

All Known Implementing Classes:

BasicQueryPlanner, HeuristicQueryPlanner

public interface QueryPlanner

The interface implemented by planners for the SQL select statement.

Author:

Edward Sciore

Method Summary

Plan	createPlan(QueryData data, Transaction tx) Creates a plan for the parsed query.

Method Detail

createPlan

Plan createPlan(QueryData data,
                Transaction tx)

Creates a plan for the parsed query.

Parameters:

data - the parsed representation of the query

tx - the calling transaction

Returns:

a plan for that query