>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3470414. --> Reported by: [scott_euser](https://www.drupal.org/user/3267594) Related to !133 >>> <h3 id="summary-problem-motivation">Problem/Motivation</h3> <p>Vector search is good at retrieving top results based on keywords/phases while traditional search offers more filtering power than what vector databases often provide. </p> <h4 id="summary-steps-reproduce">Steps to reproduce</h4> <p>Attempt to combine eg a solr index and vector database </p> <h3 id="summary-proposed-resolution">Proposed resolution</h3> <p>TBD but perhaps a Plugin or processor of some sort to take the topK results from a vector search and prepend them to the search api query (both mysql/solr have mechanisms to provide a specific sort order of ids, followed be relevance as fallback order, I would expect other databases could do this too). </p> <p>So essentially setting up two indexes, with eg solr as primary but enhanced with topK results from secondary. </p> <p>We should probably give control in the plugin to allow the editor to choose between options like this:</p> <ol> <li>When an exact phrase is searched (ie, sets of quotes found) do not perform a vector database search</li> <li>When an exact phrase is searched (ie, sets of quotes found) reduce the number of vector results to N results</li> <li>When an exact phrase is searched (ie, sets of quotes found), behave the same as if no quotes are found</li> </ol> <p>We should also allow the site builder to specify the number of results to return in Topk by default, allowing them to override it in option 2.</p> <h3 id="summary-remaining-tasks">Remaining tasks</h3> <p>Prototype solution </p> <h3 id="summary-ui-changes">User interface changes</h3> <p>TBD </p> <h3 id="summary-api-changes">API changes</h3> <p>None</p> <h3 id="summary-data-model-changes">Data model changes</h3> <p>None</p>