public void create(int count) throws DBException, IOException {
file.delete();
BTree btree = null;
try {
btree = new BTree(pool, (byte) 0, false, pool.getCacheManager(), file, 0.1);
btree.create((short) -1);
String prefixStr = "KEY";
for (int i = 1; i <= count; i++) {
Value value = new Value(prefixStr + Integer.toString(i));
btree.addValue(value, i);