title: Replace @QueryResult while switching from SDN+OGM to SDN/RX
body: <p>Using up to Spring Boot 2.3.4, I've been using the @QueryResult annotation to map some custom Cypher queries responses to POJOs. I'm now testing the Spring Boot 2.4 first RC and trying to follow instructions on how to drop OGM since the support has been removed. I successfully replaced other annotations by the ones provided  here:
  <a href="https://neo4j.github.io/sdn-rx/current/#migrating" rel="nofollow noreferrer">https://neo4j.github.io/sdn-rx/current/#migrating</a>
  but I'm now left with my @QueryResult annotations for which nothing is specified. When I delete them I get Mapping errors:</p>
  <pre><code>org.springframework.data.mapping.MappingException: Could not find mappable nodes or relationships inside Record
  </code></pre>
  <p>I've looked up some of the Mapping explanations but here's the thing: my custom POJOs don't represent any entity from the database, neither do they represent part(s) of an entity. They're rather relevant bits from differents Nodes.
  Let me examplify:
  I want to get all b nodes that are targets of the MY_REL relationship from a:</p>
  <pre><code>(a:Node {label:&quot;my label&quot;})-[:MY_REL]-&gt;(b:Node)
  </code></pre>
  <p>For my purposes, I don't need to get the <em>nodes</em> in the response, so my POJO only has 2 attributes:</p>
  <ul>
  <li>a &quot;source&quot; String which is the beginning node's label</li>
  <li>a &quot;targets&quot; Set of String which is the list of end nodes' labels</li>
  </ul>
  <p>and I return this:</p>
  <p><code>RETURN a.label AS source, COLLECT(b.label) AS targets</code></p>
  <p>My POJO was simply annotated with @QueryResult in order to get the mapping done.
  Does anyone know how to reproduce this behaviour with SB 2.4 release candidate? As I said, removing the now faulty annotation prompts me with a Mapping error but I don't know what I should do to replace it.</p>