public void setGroup(String group) {
        this.group = group;
    }
<p>
The name of the dimension group. Its valid values are:
</p>
<ul>
<li>
<p>
<code>db</code> - The name of the database to which the client is connected (only Aurora PostgreSQL, Amazon RDS
PostgreSQL, Aurora MySQL, Amazon RDS MySQL, and MariaDB)
</p>
</li>
<li>
<p>
<code>db.application</code> - The name of the application that is connected to the database (only Aurora
PostgreSQL and RDS PostgreSQL)
</p>
</li>
<li>
<p>
<code>db.host</code> - The host name of the connected client (all engines)
</p>
</li>
<li>
<p>
<code>db.session_type</code> - The type of the current session (only Aurora PostgreSQL and RDS PostgreSQL)
</p>
</li>
<li>
<p>
<code>db.sql</code> - The SQL that is currently executing (all engines)
</p>
</li>
<li>
<p>
<code>db.sql_tokenized</code> - The SQL digest (all engines)
</p>
</li>
<li>
<p>
<code>db.wait_event</code> - The event for which the database backend is waiting (all engines)
</p>
</li>
<li>
<p>
<code>db.wait_event_type</code> - The type of event for which the database backend is waiting (all engines)
</p>
</li>
<li>
<p>
<code>db.user</code> - The user logged in to the database (all engines)
</p>
</li>
</ul>

@param group
       The name of the dimension group. Its valid values are:</p>
       <ul>
       <li>
       <p>
       <code>db</code> - The name of the database to which the client is connected (only Aurora PostgreSQL,
       Amazon RDS PostgreSQL, Aurora MySQL, Amazon RDS MySQL, and MariaDB)
       </p>
       </li>
       <li>
       <p>
       <code>db.application</code> - The name of the application that is connected to the database (only Aurora
       PostgreSQL and RDS PostgreSQL)
       </p>
       </li>
       <li>
       <p>
       <code>db.host</code> - The host name of the connected client (all engines)
       </p>
       </li>
       <li>
       <p>
       <code>db.session_type</code> - The type of the current session (only Aurora PostgreSQL and RDS PostgreSQL)
       </p>
       </li>
       <li>
       <p>
       <code>db.sql</code> - The SQL that is currently executing (all engines)
       </p>
       </li>
       <li>
       <p>
       <code>db.sql_tokenized</code> - The SQL digest (all engines)
       </p>
       </li>
       <li>
       <p>
       <code>db.wait_event</code> - The event for which the database backend is waiting (all engines)
       </p>
       </li>
       <li>
       <p>
       <code>db.wait_event_type</code> - The type of event for which the database backend is waiting (all
       engines)
       </p>
       </li>
       <li>
       <p>
       <code>db.user</code> - The user logged in to the database (all engines)
       </p>
       </li>
aws-java-sdk-devopsguru/src/main/java/com/amazonaws/services/devopsguru/model/PerformanceInsightsMetricDimensionGroup.java