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<div class="subTitle">org.apache.ignite.cache.query.annotations</div>
<h2 title="Annotation Type QuerySqlField.Group" class="title">Annotation Type QuerySqlField.Group</h2>
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<pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/annotation/Retention.html?is-external=true" title="class or interface in java.lang.annotation">@Retention</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/annotation/Retention.html?is-external=true#value--" title="class or interface in java.lang.annotation">value</a>=<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/annotation/RetentionPolicy.html?is-external=true#RUNTIME" title="class or interface in java.lang.annotation">RUNTIME</a>)
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/annotation/Target.html?is-external=true" title="class or interface in java.lang.annotation">@Target</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/annotation/Target.html?is-external=true#value--" title="class or interface in java.lang.annotation">value</a>={<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/annotation/ElementType.html?is-external=true#METHOD" title="class or interface in java.lang.annotation">METHOD</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/annotation/ElementType.html?is-external=true#FIELD" title="class or interface in java.lang.annotation">FIELD</a>})
public static @interface <span class="memberNameLabel">QuerySqlField.Group</span></pre>
<div class="block">Describes group of index and position of field in this group.
<p>
Opposite to <a href="../../../../../../org/apache/ignite/cache/query/annotations/QuerySqlField.html#groups--"><code>QuerySqlField.groups()</code></a> this annotation gives control over order of fields in a group index.
This can be needed in scenarios when we have a query like
<code>select * from X where a = ? and b = ? order by b desc</code>. If we have index <code>(a asc, b asc)</code>
sorting on <code>b</code> will be performed. Here it is preferable to have index <code>(b desc, a asc)</code>
which will still allow query to search on index using both fields and avoid sorting because index
is already sorted in needed way.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../org/apache/ignite/cache/query/annotations/QuerySqlField.html#groups--"><code>QuerySqlField.groups()</code></a>,
<a href="../../../../../../org/apache/ignite/cache/query/annotations/QuerySqlField.html#orderedGroups--"><code>QuerySqlField.orderedGroups()</code></a></dd>
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<h3>Required Element Summary</h3>
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<caption><span>Required Elements</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Required Element and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/ignite/cache/query/annotations/QuerySqlField.Group.html#name--">name</a></span></code>
<div class="block">Group index name where this field participate.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/ignite/cache/query/annotations/QuerySqlField.Group.html#order--">order</a></span></code>
<div class="block">Fields in this group index will be sorted on this attribute.</div>
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<caption><span>Optional Elements</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Optional Element and Description</th>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/ignite/cache/query/annotations/QuerySqlField.Group.html#descending--">descending</a></span></code>
<div class="block">Defines sorting order for this field in group.</div>
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<h4>name</h4>
<pre>public abstract&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name</pre>
<div class="block">Group index name where this field participate.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Group index name</dd>
</dl>
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<h4>order</h4>
<pre>public abstract&nbsp;int&nbsp;order</pre>
<div class="block">Fields in this group index will be sorted on this attribute.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Order number.</dd>
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<h4>descending</h4>
<pre>public abstract&nbsp;boolean&nbsp;descending</pre>
<div class="block">Defines sorting order for this field in group.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>True if field will be in descending order.</dd>
</dl>
<dl>
<dt>Default:</dt>
<dd>false</dd>
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<p class="legalCopy"><small><table width="100%" border="0" cellspacing=0 cellpadding=0 style="padding: 5px"> <tr> <td> <table style="padding-left: 0; margin: 0"> <tbody style="padding: 0; margin: 0"> <tr style="padding: 0; margin: 0"> <td> <a target=_blank href="https://ignite.apache.org"><nobr>2021 Copyright &#169; Apache Software Foundation</nobr></a> </td> </tr> </tbody> </table> </td> <td width="100%" align="right" valign="center"> <a href="https://twitter.com/ApacheIgnite" class="twitter-follow-button" data-show-count="false" data-size="large">Follow @ApacheIgnite</a> </td> </tr> <tr> <td colspan="2" valign="top" align="left"> <table style="padding-left: 0; margin: 0"> <tbody style="padding: 0; margin: 0"> <tr style="padding: 0; margin: 0"> <td> <b>Ignite Database and Caching Platform</b> </td> <td>:&nbsp;&nbsp; ver. <strong>2.11.1</strong> </td> </tr> <tr style="padding: 0; margin: 0"> <td> <b>Release Date</b> </td> <td>:&nbsp;&nbsp; December 20 2021 </td> </tr> </tbody> </table> </td> </tr> </table></small></p>
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