src/query_plan.js
function(left, right, cost, identifier, allVars, joinVars) {

    this.left =  left;
    this.right = right;
    this.cost = cost;
    this.i = identifier;
    this.vars = allVars;
    this.join = joinVars;

}
function(left, right, cost, identifier, allVars, joinVars) {

    this.left =  left;
    this.right = right;
    this.cost = cost;
    this.i = identifier;
    this.vars = allVars;
    this.join = joinVars;

}
function ( left , right , cost , identifier , allVars , joinVars ) { this . left = left ; this . right = right ; this . cost = cost ; this . i = identifier ; this . vars = allVars ; this . join = joinVars ; }
A new query plan object
@param left
@param right
@param cost
@param identifier
@param allVars
@param joinVars
@constructor
A new query plan object