Solr - Return random results (Sort by Random)

Question

In Solr, Whats the best approach to order results by random?, basically needs to pick some records at random.

Answer 1

In latest Solr, nothing need to do with schema. Just add below sorting and it will give random result set.

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//Below is to get rendom string
$randString = mt_rand();        
$query->addSort('random_'.$randString, $query::SORT_DESC);

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