I was reading up on when ES builds fielddata : https://www.elastic.co/guide/en/elasticsearch/guide/current/fielddata.html
A footnote on this page reads 'It is required for any operation that needs to look up the value contained in a specific document'. Would this also be true when building buckets in a date_histogram aggregation ? Date fields are bound to have high cardinalilty so I would imagine that if populating fielddata would be counterproductive. In what cases while building aggregations does the above mentioned pattern not apply ? -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/846fb94b-d390-434b-bc7f-58885bf477ea%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
