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Aggregation operators help aggregate log messages into groups. These groups can be user-defined or by default, they’re grouped over time. At a high level, FuseQL supports the following aggregation groupsoperators:

• count all log lines or fingerprints.

• count_unique of labels or string-valued facets or fingerprints.

• statistical operations (min, max, avg, sum, stddev, stdvar and percentiles) on numeric or duration facet values.

• misc aggregation operations (first and last).

All aggregation operators aggregations are applied performed after applying filters, if any, in the log search bar, and in a time range selected by the user in the time picker. All aggregations are grouped by time buckets, unless user specifies additional grouping from the by dropdown.

count

Counts the total number of log lines in a given time range, along with any filters applied in log search.

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count_unique

Counts only unique or distinct occurrences of the field. This operator can be applied on fingerprints, labels or string valued facets (facet value can be of string/UUID/IP address datatype).

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Computes the average value of numeric or duration valued facets within a group.

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sum

Computes the sum of numeric or duration valued facets within a group.

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min

Computes the min value of numeric or duration valued facets within a group.

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max

Computes the max value of numeric or duration valued facets within a group.

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first

Computes the first value of numeric or duration valued facets within a group.

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last

Computes the last value of numeric or duration valued facets within a group.

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percentiles

Computes the percentiles (p50, p75, p90, p95 and or p99) of numeric or duration valued facets within a group.

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stddev

Computes the standard deviation of numeric or duration valued facets within a group.

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stdvar

Computes the standard variance of numeric or duration valued facets within a group.

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