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Elasticsearch: Add documentation for supported Elasticsearch query transformations (#33072)

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* Elasticsearch:  Add documentation for supported Elasticsearch query transformation

* Update docs/sources/datasources/elasticsearch.md

Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>

* Remove beta notives for ES logs

Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
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Giordano Ricci 2021-04-19 15:18:50 +01:00 committed by GitHub
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@ -77,9 +77,7 @@ number followed by a valid time identifier, e.g. `1m` (1 minute) or `30s` (30 se
| `s` | second |
| `ms` | millisecond |
### Logs (BETA)
> Only available in Grafana v6.3+.
### Logs
There are two parameters, `Message field name` and `Level field name`, that can optionally be configured from the data source settings page that determine
which fields will be used for log messages and log levels when visualizing logs in [Explore]({{< relref "../explore" >}}).
@ -191,18 +189,18 @@ for annotation events.
| `Text` | Event description field. |
| `Tags` | Optional field name to use for event tags (can be an array or a CSV string). |
## Querying Logs (BETA)
> Only available in Grafana v6.3+.
## Querying Logs
Querying and displaying log data from Elasticsearch is available in [Explore]({{< relref "../explore" >}}), and in the [logs panel]({{< relref "../panels/visualizations/logs-panel.md" >}}) in dashboards.
Select the Elasticsearch data source, and then optionally enter a lucene query to display your logs.
When switching from a Prometheus or Loki data source in Explore, your query is translated to an Elasticsearch log query with a correct Lucene filter.
### Log Queries
Once the result is returned, the log panel shows a list of log rows and a bar chart where the x-axis shows the time and the y-axis shows the frequency/count.
Note that the fields used for log message and level is based on an [optional data source configuration](#logs-beta).
Note that the fields used for log message and level is based on an [optional data source configuration](#logs).
### Filter Log Messages