Method getJoinField2Name

src/java/simpledb/execution/Join.java:68–71

@return the field name of join field2. Should be quantified by alias or table name.

()

     *       alias or table name.
     * */
    public String getJoinField2Name() {
        // some code goes here
        return child2.getTupleDesc().getFieldName(joinPredicate.getField2());
    }

    /**
     * @see TupleDesc#merge(TupleDesc, TupleDesc) for possible