<story><title>MongoDB queries don’t always return all matching documents</title><url>https://engineering.meteor.com/mongodb-queries-dont-always-return-all-matching-documents-654b6594a827#.s3ko3vfnx</url></story><parent_chain><item><author>lossolo</author><text>I&amp;#x27;ve just migrated one project from mongo to postgresql and i advise you to do the same. It was my mistake to use mongo, after I&amp;#x27;ve found memory leak in cursors first day I&amp;#x27;ve used the db which I&amp;#x27;ve reported and they fixed it. It was 2015.. If you have a lot of relations in your data don&amp;#x27;t use mongo, it&amp;#x27;s just hype. You will end up with collections without relations and then do joins in your code instead of having db do it for you.</text></item></parent_chain><comment><author>sotojuan</author><text>Even if you want NoSQL I&amp;#x27;d use RethinkDB over Mongo any day. Way better query language, real-time support, and relational&amp;#x2F;regular SQL-like stuff.&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;rethinkdb.com&amp;#x2F;docs&amp;#x2F;comparison-tables&amp;#x2F;&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;rethinkdb.com&amp;#x2F;docs&amp;#x2F;comparison-tables&amp;#x2F;&lt;/a&gt;</text></comment>
<story><title>MongoDB queries don’t always return all matching documents</title><url>https://engineering.meteor.com/mongodb-queries-dont-always-return-all-matching-documents-654b6594a827#.s3ko3vfnx</url></story><parent_chain><item><author>lossolo</author><text>I&amp;#x27;ve just migrated one project from mongo to postgresql and i advise you to do the same. It was my mistake to use mongo, after I&amp;#x27;ve found memory leak in cursors first day I&amp;#x27;ve used the db which I&amp;#x27;ve reported and they fixed it. It was 2015.. If you have a lot of relations in your data don&amp;#x27;t use mongo, it&amp;#x27;s just hype. You will end up with collections without relations and then do joins in your code instead of having db do it for you.</text></item></parent_chain><comment><author>Joeboy</author><text>&amp;gt; don&amp;#x27;t use mongo, it&amp;#x27;s just hype&lt;p&gt;I&amp;#x27;m kind of curious as to where this hype is. I&amp;#x27;ve almost never heard anybody say anything positive about mongodb. All I ever see is people saying it&amp;#x27;s terrible &amp;#x2F; hilarious for various reasons.</text></comment>