Hi, I wonder whether it was possible or not to have date histogram aggregation be DST aware. From what I understand of the date histogram algorithm, it's something like :
date + offset - (date + offset) % interval Maybe a scripted term aggregation would be a better solution if the date datas already have a DST aware offset registered. For example, let's say we have documents with those kind of date fields : 2014-03-29T00:30:00.000+01:00 (2014-03-28T23:30:00.000Z) 2014-03-30T00:30:00.000+01:00 (2014-03-29T23:30:00.000Z) 2014-03-31T00:30:00.000+02:00 (2014-03-30T22:30:00.000Z) 2014-03-31T01:30:00.000+02:00 (2014-03-30T23:30:00.000Z) Using string manipulation in scripted term aggregation to retrieve document by day would be trivial but less performant than date_histogram aggregation which would probably not be able to aggregate dates taking DST into account. -- 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 elasticsearch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/38837adf-9d91-4214-977e-98db4894de9d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
