// Copyright (c) 2013-2014 The btcsuite developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.

/*
Package database provides a database interface for the Bitcoin block chain.

As of July 2014, there are over 309,000 blocks in the Bitcoin block chain and
and over 42 million transactions (which turns out to be over 21GB of data).
This package provides a database layer to store and retrieve this data in a
fairly simple and efficient manner.  The use of this should not require specific
knowledge of the database backend.

Basic Design

The basic design of this package is to provide two classes of items in a
database; blocks and transactions (tx) where the block number increases
monotonically.  Each transaction belongs to a single block although a block can
have a variable number of transactions.  Along with these two items, several
convenience functions for dealing with the database are provided as well as
functions to query specific items that may be present in a block or tx.

Usage

At the highest level, the use of this packages just requires that you import it,
setup a database, insert some data into it, and optionally, query the data back.
The first block inserted into the database will be treated as the genesis block.
Every subsequent block insert requires the referenced parent block to already
exist.
*/
package database