efficient and fast KV store suitable for andoid phones for a million rows?
<p>Is there a KV store that can store a million KV pairs, while performaning well in an Android phone without hogging resources?</p>

<p>It should be able to do this fast:</p>

<pre><code>kvstore.deleteByPrefix("image_hash_"); #a million keys have this prefix
for(... #for a million values
    kvstore.add("image_hash_"+i.toString(), "true"); #values are small
}
</code></pre>
