How can I compress similar rows?
<p>I store a very large number of blobs of varying size (~10-100kb) in a key-value database. Rows are appended, never deleted.</p>

<p>Since many of the blobs are very similar, it would be possible to compress them to a high degree if they were concatenated. However, that's not trivial to apply here, given that the data is in different rows.</p>

<p>Is there a reasonably easy way to still compress them, or at least remove part of the redundancy?</p>