Graylog2 / Graylog2/graylog2-server
Empty buckets are not anchored on null for line charts
Open
bug
Medium Prio
triaged
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- Dominant language
- Java
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Description
Line charts that plot sparse aggregated data do not anchor empty buckets at null.
The example is grouped over time and event type, with an event count as aggregation metric.

## Expected Behavior
Empty buckets have an aggregation count of zero, leading to a chart which can be adequately used for recognizing and comparing trend lines, even on sparse data.
## Your Environment
* Graylog Version: Graylog 5.2.3
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