DateHistogram
data class DateHistogram(val field: QueryField, val alias: String, val unit: AggregationDateUnit, val timeZone: String = "UTC", val dense: Boolean = false, val scope: AggregationGroupScope? = null) : AggregationGroup
Constructors
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constructor(field: QueryField, alias: String, unit: AggregationDateUnit, timeZone: String = "UTC", dense: Boolean = false, scope: AggregationGroupScope? = null)
Properties
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The grouped field; null only for a TERMS or HISTOGRAM group whose input is an expression.
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Where field is read when the query expands elements: null (the innermost element, relative to its container) or AggregationGroupScope.ROOT (a root field, by its absolute path), so a count of elements can be grouped by a field of the record they belong to, such as its creation day. Without elements both read the root.
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