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History: Date-based aggregations

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Source of version: 8 (current)

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            ! Date-based aggregations
New in ((Tiki20)), this requires ((Elasticsearch))

This adds new facets to the ((Faceted search))

Admin panel -> Search -> Search Results

{img src="display1596" link="display1596" width="400" rel="box[g]" imalign="center" desc="Click to expand" align="center" styleimage="border"}

!! Demo of Date Facets in Charts
The two lower charts on ((PluginCustomSearch Chart Examples)) are based on these aggregations.


Todo: document better
* Two new date based aggregations (a.k.a. facets) [http://sourceforge.net/p/tikiwiki/code/68499|in this commit]: [https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-bucket-daterange-aggregation.html|ranges] and [https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-bucket-datehistogram-aggregation.html|histograms]



!! Examples
* ((dev:Wish Report))


!! See also
* ((Grouped Data))
* ((Derived Attribute of a date))