public RuleTester(QueryHandler qh, Histogram histogram, Relation rootRelation) {
this.qh = qh;
this.histogram = histogram.clone();
this.histogram.reset();
this.rootLiteral = new Literal(rootRelation, (int) 'A', (int) 'B');
}
public RuleTester(QueryHandler qh, Histogram histogram, Literal rootLiteral) {
this.qh = qh;
this.histogram = histogram.clone();
this.histogram.reset();
this.rootLiteral = rootLiteral;
}
