<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>icholy</author><text>Is it possible to &amp;quot;backload&amp;quot; changes?&lt;p&gt;&amp;quot;Start the changefeed at timestamp `x`. Once it&amp;#x27;s caught up to realtime, keep feeding me new ones&amp;quot;</text><parent_chain></parent_chain></comment><story><title>Video Streaming with RethinkDB Changefeeds</title><url>https://github.com/AtnNn/rethinkdb-stream</url><text></text></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>StavrosK</author><text>I read the changefeeds post, but I don&amp;#x27;t think I understood exactly what they&amp;#x27;re for. Would clients be talking directly to the database, or would a persistent app worker block on database updates and then send this to the client?</text><parent_chain></parent_chain></comment><story><title>Video Streaming with RethinkDB Changefeeds</title><url>https://github.com/AtnNn/rethinkdb-stream</url><text></text></story>