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@@ -154,19 +154,19 @@ increase the size of the resulting rollup index.
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=====
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`metrics`::
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-(Optional, array of objects)
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-Collects and stores metrics for <<number,numeric>> fields.
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+(Required, array of objects)
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+Collects and stores metrics for <<number,numeric>> fields. You must specify at
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+least one `metrics` object.
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+
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.Properties of `metrics` objects
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[%collapsible%open]
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=====
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`field`::
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-(Required*, string)
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-<<number,Numeric>> field to collect metrics for. If you specify a `metrics`
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-object, this property is required.
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+(Required, string)
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+<<number,Numeric>> field to collect metrics for.
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`metrics`::
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-(Required*, array of strings)
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+(Required, array of strings)
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Array of metrics to collect. Each value corresponds to a
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<<search-aggregations-metrics,metric aggregation>>. Valid values are
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<<search-aggregations-metrics-min-aggregation,`min`>>,
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@@ -174,8 +174,7 @@ Array of metrics to collect. Each value corresponds to a
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<<search-aggregations-metrics-sum-aggregation,`sum`>>,
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<<search-aggregations-metrics-avg-aggregation,`avg`>>, and
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<<search-aggregations-metrics-valuecount-aggregation,`value_count`>>. You must
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-specify at least one value. If you specify a `metrics` object, this property is
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-required.
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+specify at least one value.
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+
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NOTE: The rollup index stores these metrics in an
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<<aggregate-metric-double,`aggregate_metric_double`>> field. The `avg` metric
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James Rodewig