Method getTupleDesc

src/java/simpledb/storage/HeapFile.java:73–76

Returns the TupleDesc of the table stored in this DbFile. @return TupleDesc of this DbFile.

()

     * @return TupleDesc of this DbFile.
     */
    public TupleDesc getTupleDesc() {
        // some code goes here
        return tupleDesc;
    }

    /*
    以下有些方法并不会直接调用，而是通过BufferPool调用