Method getTupleDesc

src/java/simpledb/common/Catalog.java:163–170

Returns the tuple descriptor (schema) of the specified table @param tableid The id of the table, as specified by the DbFile.getId() function passed to addTable @throws NoSuchElementException if the table doesn't exist

(int tableid)

     * @throws NoSuchElementException if the table doesn't exist
     */
    public TupleDesc getTupleDesc(int tableid) throws NoSuchElementException {
        // some code goes here
        Table table = this.getTableById(tableid);
        if(table!=null){
            return table.getFile().getTupleDesc();
        }
        throw new NoSuchElementException();
    }


    /**