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_dashboards/dql.md
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@ -10,7 +10,9 @@ Similar to the [Query DSL]({{site.url}}{{site.baseurl}}/opensearch/query-dsl/ind
For example, if you want to see all visualizations of visits to a host based in the US, enter `geo.dest:US` into the search field, and Dashboards refreshes to display all related data.
Just like query DSL, DQL comes in a handful of varieties, so use whichever best fits your use case.
Just like the query DSL, DQL has a handful of query types, so use whichever best fits your use case.
This section uses the OpenSearch Dashbaords sample web log data. To add sample data in Dashboards, log in to OpenSearch Dashboards, choose **Home**, **Add sample data**, and then **Add data**.
---
@ -25,13 +27,19 @@ Just like query DSL, DQL comes in a handful of varieties, so use whichever best
The most basic query is to just specify the term you're searching for.
```
host.keyword:www.example.com
host:www.example.com
```
DQL also supports wildcards, so you can search for any terms that match your pattern.
To access an object's nested field, list the complete path to the field separated by periods. For example, to retrieve the `lat` field in the `coordinates` object:
```
host.keyword:www.example.*
coordinates.lat:43.7102
```
DQL also supports leading and trailing wildcards, so you can search for any terms that match your pattern.
```
host.keyword:*.example.com/*
```
To check if a field exists or has any data, use a wildcard to see if Dashboards returns any results.