Hi, We have a query that we can resolve using either facet or search with rollup. In the Stream Source Reference section of Solr’s Reference Guide (https://lucene.apache.org/solr/guide/7_1/stream-source-reference.html#facet) it says “To support high cardinality aggregations see the rollup function”. I was wondering what it’s considered “high cardinality”. If it serves, our query returns up to 60k results. I haven’t got to do any benchmarking to see if there’s any difference, though, because facet so far performs very well, but I don’t know if I’m near the “tipping point”. Any feedback would be appreciated.
Many thanks in advance. -- Alfonso Muñoz-Pomer Fuentes Senior Lead Software Engineer @ Expression Atlas Team European Bioinformatics Institute (EMBL-EBI) European Molecular Biology Laboratory Tel:+ 44 (0) 1223 49 2633 Skype: amunozpomer
