apidocs/javadocAggregate/org/apache/calcite/sql/SqlWindow.html - calcite-site - Git at Google

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 <div class="subTitle">org.apache.calcite.sql</div>
 <h2 title="类 SqlWindow" class="title">类 SqlWindow</h2>
 </div>
 <div class="contentContainer">
 <ul class="inheritance">
 <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">java.lang.Object</a></li>
 <li>
 <ul class="inheritance">
 <li><a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">org.apache.calcite.sql.SqlNode</a></li>
 <li>
 <ul class="inheritance">
 <li><a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类">org.apache.calcite.sql.SqlCall</a></li>
 <li>
 <ul class="inheritance">
 <li>org.apache.calcite.sql.SqlWindow</li>
 </ul>
 </li>
 </ul>
 </li>
 </ul>
 </li>
 </ul>
 <div class="description">
 <ul class="blockList">
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 <dl>
 <dt>所有已实现的接口:</dt>
 <dd><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Cloneable.html?is-external=true" title="java.lang中的类或接口">Cloneable</a></dd>
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 <hr>
 <br>
 <pre>public class <span class="typeNameLabel">SqlWindow</span>
 extends <a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类">SqlCall</a></pre>
 <div class="block">SQL window specification.

  <p>For example, the query</p>

  <blockquote>
  <pre>SELECT sum(a) OVER (w ROWS 3 PRECEDING)
  FROM t
  WINDOW w AS (PARTITION BY x, y ORDER BY z),
      w1 AS (w ROWS 5 PRECEDING UNBOUNDED FOLLOWING)</pre>
  </blockquote>

  <p>declares windows w and w1, and uses a window in an OVER clause. It thus
  contains 3 <a href="../../../../org/apache/calcite/sql/SqlWindow.html" title="org.apache.calcite.sql中的类"><code>SqlWindow</code></a> objects.</p></div>
 </li>
 </ul>
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 <!-- =========== FIELD SUMMARY =========== -->
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 <h3>字段概要</h3>
 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="字段概要表, 列表字段和解释">
 <caption><span>字段</span><span class="tabEnd">&nbsp;</span></caption>
 <tr>
 <th class="colFirst" scope="col">限定符和类型</th>
 <th class="colLast" scope="col">字段和说明</th>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static <a href="../../../../org/apache/calcite/sql/SqlPostfixOperator.html" title="org.apache.calcite.sql中的类">SqlPostfixOperator</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#FOLLOWING_OPERATOR">FOLLOWING_OPERATOR</a></span></code>
 <div class="block">The FOLLOWING operator used exclusively in a window specification.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>static <a href="../../../../org/apache/calcite/sql/SqlPostfixOperator.html" title="org.apache.calcite.sql中的类">SqlPostfixOperator</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#PRECEDING_OPERATOR">PRECEDING_OPERATOR</a></span></code>
 <div class="block">The PRECEDING operator used exclusively in a window specification.</div>
 </td>
 </tr>
 </table>
 <ul class="blockList">
 <li class="blockList"><a name="fields.inherited.from.class.org.apache.calcite.sql.SqlNode">
 <!--   -->
 </a>
 <h3>从类继承的字段&nbsp;org.apache.calcite.sql.<a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a></h3>
 <code><a href="../../../../org/apache/calcite/sql/SqlNode.html#EMPTY_ARRAY">EMPTY_ARRAY</a>, <a href="../../../../org/apache/calcite/sql/SqlNode.html#pos">pos</a></code></li>
 </ul>
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 <h3>构造器概要</h3>
 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="构造器概要表, 列表构造器和解释">
 <caption><span>构造器</span><span class="tabEnd">&nbsp;</span></caption>
 <tr>
 <th class="colOne" scope="col">构造器和说明</th>
 </tr>
 <tr class="altColor">
 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#SqlWindow-org.apache.calcite.sql.parser.SqlParserPos-org.apache.calcite.sql.SqlIdentifier-org.apache.calcite.sql.SqlIdentifier-org.apache.calcite.sql.SqlNodeList-org.apache.calcite.sql.SqlNodeList-org.apache.calcite.sql.SqlLiteral-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlLiteral-">SqlWindow</a></span>(<a href="../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类">SqlParserPos</a>&nbsp;pos,
          <a href="../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类">SqlIdentifier</a>&nbsp;declName,
          <a href="../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类">SqlIdentifier</a>&nbsp;refName,
          <a href="../../../../org/apache/calcite/sql/SqlNodeList.html" title="org.apache.calcite.sql中的类">SqlNodeList</a>&nbsp;partitionList,
          <a href="../../../../org/apache/calcite/sql/SqlNodeList.html" title="org.apache.calcite.sql中的类">SqlNodeList</a>&nbsp;orderList,
          <a href="../../../../org/apache/calcite/sql/SqlLiteral.html" title="org.apache.calcite.sql中的类">SqlLiteral</a>&nbsp;isRows,
          <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;lowerBound,
          <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;upperBound,
          <a href="../../../../org/apache/calcite/sql/SqlLiteral.html" title="org.apache.calcite.sql中的类">SqlLiteral</a>&nbsp;allowPartial)</code>
 <div class="block">Creates a window.</div>
 </td>
 </tr>
 </table>
 </li>
 </ul>
 <!-- ========== METHOD SUMMARY =========== -->
 <ul class="blockList">
 <li class="blockList"><a name="method.summary">
 <!--   -->
 </a>
 <h3>方法概要</h3>
 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="方法概要表, 列表方法和解释">
 <caption><span id="t0" class="activeTableTab"><span>所有方法</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">静态方法</a></span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">实例方法</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">具体方法</a></span><span class="tabEnd">&nbsp;</span></span></caption>
 <tr>
 <th class="colFirst" scope="col">限定符和类型</th>
 <th class="colLast" scope="col">方法和说明</th>
 </tr>
 <tr id="i0" class="altColor">
 <td class="colFirst"><code>static <a href="../../../../org/apache/calcite/sql/SqlWindow.html" title="org.apache.calcite.sql中的类">SqlWindow</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#create-org.apache.calcite.sql.SqlIdentifier-org.apache.calcite.sql.SqlIdentifier-org.apache.calcite.sql.SqlNodeList-org.apache.calcite.sql.SqlNodeList-org.apache.calcite.sql.SqlLiteral-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlLiteral-org.apache.calcite.sql.parser.SqlParserPos-">create</a></span>(<a href="../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类">SqlIdentifier</a>&nbsp;declName,
       <a href="../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类">SqlIdentifier</a>&nbsp;refName,
       <a href="../../../../org/apache/calcite/sql/SqlNodeList.html" title="org.apache.calcite.sql中的类">SqlNodeList</a>&nbsp;partitionList,
       <a href="../../../../org/apache/calcite/sql/SqlNodeList.html" title="org.apache.calcite.sql中的类">SqlNodeList</a>&nbsp;orderList,
       <a href="../../../../org/apache/calcite/sql/SqlLiteral.html" title="org.apache.calcite.sql中的类">SqlLiteral</a>&nbsp;isRows,
       <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;lowerBound,
       <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;upperBound,
       <a href="../../../../org/apache/calcite/sql/SqlLiteral.html" title="org.apache.calcite.sql中的类">SqlLiteral</a>&nbsp;allowPartial,
       <a href="../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类">SqlParserPos</a>&nbsp;pos)</code>&nbsp;</td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code>static <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#createBound-org.apache.calcite.sql.SqlLiteral-">createBound</a></span>(<a href="../../../../org/apache/calcite/sql/SqlLiteral.html" title="org.apache.calcite.sql中的类">SqlLiteral</a>&nbsp;range)</code>&nbsp;</td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code>static <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#createCurrentRow-org.apache.calcite.sql.parser.SqlParserPos-">createCurrentRow</a></span>(<a href="../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类">SqlParserPos</a>&nbsp;pos)</code>&nbsp;</td>
 </tr>
 <tr id="i3" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/SqlWindow.html" title="org.apache.calcite.sql中的类">SqlWindow</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#createCurrentRowWindow-java.lang.String-">createCurrentRowWindow</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;columnName)</code>
 <div class="block">Creates a window <code>(RANGE <i>columnName</i> CURRENT ROW)</code>.</div>
 </td>
 </tr>
 <tr id="i4" class="altColor">
 <td class="colFirst"><code>static <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#createFollowing-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.parser.SqlParserPos-">createFollowing</a></span>(<a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;e,
                <a href="../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类">SqlParserPos</a>&nbsp;pos)</code>&nbsp;</td>
 </tr>
 <tr id="i5" class="rowColor">
 <td class="colFirst"><code>static <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#createPreceding-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.parser.SqlParserPos-">createPreceding</a></span>(<a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;e,
                <a href="../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类">SqlParserPos</a>&nbsp;pos)</code>&nbsp;</td>
 </tr>
 <tr id="i6" class="altColor">
 <td class="colFirst"><code>static <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#createUnboundedFollowing-org.apache.calcite.sql.parser.SqlParserPos-">createUnboundedFollowing</a></span>(<a href="../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类">SqlParserPos</a>&nbsp;pos)</code>&nbsp;</td>
 </tr>
 <tr id="i7" class="rowColor">
 <td class="colFirst"><code>static <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#createUnboundedPreceding-org.apache.calcite.sql.parser.SqlParserPos-">createUnboundedPreceding</a></span>(<a href="../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类">SqlParserPos</a>&nbsp;pos)</code>&nbsp;</td>
 </tr>
 <tr id="i8" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/SqlWindow.html" title="org.apache.calcite.sql中的类">SqlWindow</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#createUnboundedPrecedingWindow-java.lang.String-">createUnboundedPrecedingWindow</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;columnName)</code>
 <div class="block">Creates a window <code>(RANGE <i>columnName</i> UNBOUNDED
  PRECEDING)</code>.</div>
 </td>
 </tr>
 <tr id="i9" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#equalsDeep-org.apache.calcite.sql.SqlNode-org.apache.calcite.util.Litmus-">equalsDeep</a></span>(<a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;node,
           <a href="../../../../org/apache/calcite/util/Litmus.html" title="org.apache.calcite.util中的接口">Litmus</a>&nbsp;litmus)</code>
 <div class="block">Overridden method to specifically check only the right subtree of a window
  definition.</div>
 </td>
 </tr>
 <tr id="i10" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类">SqlIdentifier</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#getDeclName--">getDeclName</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i11" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/SqlKind.html" title="org.apache.calcite.sql中的枚举">SqlKind</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#getKind--">getKind</a></span>()</code>
 <div class="block">Returns the type of node this is, or
  <a href="../../../../org/apache/calcite/sql/SqlKind.html#OTHER"><code>SqlKind.OTHER</code></a> if it's nothing special.</div>
 </td>
 </tr>
 <tr id="i12" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#getLowerBound--">getLowerBound</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i13" class="rowColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a>&lt;<a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#getOperandList--">getOperandList</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i14" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/SqlOperator.html" title="org.apache.calcite.sql中的类">SqlOperator</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#getOperator--">getOperator</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i15" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/SqlNodeList.html" title="org.apache.calcite.sql中的类">SqlNodeList</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#getOrderList--">getOrderList</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i16" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/SqlNodeList.html" title="org.apache.calcite.sql中的类">SqlNodeList</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#getPartitionList--">getPartitionList</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i17" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类">SqlIdentifier</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#getRefName--">getRefName</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i18" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#getUpperBound--">getUpperBound</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i19" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类">SqlCall</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#getWindowCall--">getWindowCall</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i20" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#isAllowPartial--">isAllowPartial</a></span>()</code>
 <div class="block">Returns whether partial windows are allowed.</div>
 </td>
 </tr>
 <tr id="i21" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#isAlwaysNonEmpty--">isAlwaysNonEmpty</a></span>()</code>
 <div class="block">Returns if the window is guaranteed to have rows.</div>
 </td>
 </tr>
 <tr id="i22" class="altColor">
 <td class="colFirst"><code>static boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#isCurrentRow-org.apache.calcite.sql.SqlNode-">isCurrentRow</a></span>(<a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;node)</code>
 <div class="block">Returns whether an expression represents the "CURRENT ROW" bound.</div>
 </td>
 </tr>
 <tr id="i23" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#isRows--">isRows</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i24" class="altColor">
 <td class="colFirst"><code>static boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#isUnboundedFollowing-org.apache.calcite.sql.SqlNode-">isUnboundedFollowing</a></span>(<a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;node)</code>
 <div class="block">Returns whether an expression represents the "UNBOUNDED FOLLOWING" bound.</div>
 </td>
 </tr>
 <tr id="i25" class="rowColor">
 <td class="colFirst"><code>static boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#isUnboundedPreceding-org.apache.calcite.sql.SqlNode-">isUnboundedPreceding</a></span>(<a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;node)</code>
 <div class="block">Returns whether an expression represents the "UNBOUNDED PRECEDING" bound.</div>
 </td>
 </tr>
 <tr id="i26" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/calcite/sql/SqlWindow.html" title="org.apache.calcite.sql中的类">SqlWindow</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#overlay-org.apache.calcite.sql.SqlWindow-org.apache.calcite.sql.validate.SqlValidator-">overlay</a></span>(<a href="../../../../org/apache/calcite/sql/SqlWindow.html" title="org.apache.calcite.sql中的类">SqlWindow</a>&nbsp;that,
        <a href="../../../../org/apache/calcite/sql/validate/SqlValidator.html" title="org.apache.calcite.sql.validate中的接口">SqlValidator</a>&nbsp;validator)</code>
 <div class="block">Creates a new window by combining this one with another.</div>
 </td>
 </tr>
 <tr id="i27" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#populateBounds--">populateBounds</a></span>()</code>
 <div class="block">Fill in missing bounds.</div>
 </td>
 </tr>
 <tr id="i28" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#setDeclName-org.apache.calcite.sql.SqlIdentifier-">setDeclName</a></span>(<a href="../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类">SqlIdentifier</a>&nbsp;declName)</code>&nbsp;</td>
 </tr>
 <tr id="i29" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#setLowerBound-org.apache.calcite.sql.SqlNode-">setLowerBound</a></span>(<a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;lowerBound)</code>&nbsp;</td>
 </tr>
 <tr id="i30" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#setOperand-int-org.apache.calcite.sql.SqlNode-">setOperand</a></span>(int&nbsp;i,
           <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;operand)</code>
 <div class="block">Changes the value of an operand.</div>
 </td>
 </tr>
 <tr id="i31" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#setOrderList-org.apache.calcite.sql.SqlNodeList-">setOrderList</a></span>(<a href="../../../../org/apache/calcite/sql/SqlNodeList.html" title="org.apache.calcite.sql中的类">SqlNodeList</a>&nbsp;orderList)</code>&nbsp;</td>
 </tr>
 <tr id="i32" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#setPartitionList-org.apache.calcite.sql.SqlNodeList-">setPartitionList</a></span>(<a href="../../../../org/apache/calcite/sql/SqlNodeList.html" title="org.apache.calcite.sql中的类">SqlNodeList</a>&nbsp;partitionList)</code>&nbsp;</td>
 </tr>
 <tr id="i33" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#setRows-org.apache.calcite.sql.SqlLiteral-">setRows</a></span>(<a href="../../../../org/apache/calcite/sql/SqlLiteral.html" title="org.apache.calcite.sql中的类">SqlLiteral</a>&nbsp;isRows)</code>&nbsp;</td>
 </tr>
 <tr id="i34" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#setUpperBound-org.apache.calcite.sql.SqlNode-">setUpperBound</a></span>(<a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;upperBound)</code>&nbsp;</td>
 </tr>
 <tr id="i35" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#setWindowCall-org.apache.calcite.sql.SqlCall-">setWindowCall</a></span>(<a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类">SqlCall</a>&nbsp;windowCall)</code>&nbsp;</td>
 </tr>
 <tr id="i36" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#unparse-org.apache.calcite.sql.SqlWriter-int-int-">unparse</a></span>(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a>&nbsp;writer,
        int&nbsp;leftPrec,
        int&nbsp;rightPrec)</code>
 <div class="block">Writes a SQL representation of this node to a writer.</div>
 </td>
 </tr>
 <tr id="i37" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/sql/SqlWindow.html#validate-org.apache.calcite.sql.validate.SqlValidator-org.apache.calcite.sql.validate.SqlValidatorScope-">validate</a></span>(<a href="../../../../org/apache/calcite/sql/validate/SqlValidator.html" title="org.apache.calcite.sql.validate中的接口">SqlValidator</a>&nbsp;validator,
         <a href="../../../../org/apache/calcite/sql/validate/SqlValidatorScope.html" title="org.apache.calcite.sql.validate中的接口">SqlValidatorScope</a>&nbsp;scope)</code>
 <div class="block">Validates this call.</div>
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 <code><a href="../../../../org/apache/calcite/sql/SqlCall.html#accept-org.apache.calcite.sql.util.SqlVisitor-">accept</a>, <a href="../../../../org/apache/calcite/sql/SqlCall.html#clone-org.apache.calcite.sql.parser.SqlParserPos-">clone</a>, <a href="../../../../org/apache/calcite/sql/SqlCall.html#findValidOptions-org.apache.calcite.sql.validate.SqlValidator-org.apache.calcite.sql.validate.SqlValidatorScope-org.apache.calcite.sql.parser.SqlParserPos-java.util.Collection-">findValidOptions</a>, <a href="../../../../org/apache/calcite/sql/SqlCall.html#getCallSignature-org.apache.calcite.sql.validate.SqlValidator-org.apache.calcite.sql.validate.SqlValidatorScope-">getCallSignature</a>, <a href="../../../../org/apache/calcite/sql/SqlCall.html#getFunctionQuantifier--">getFunctionQuantifier</a>, <a href="../../../../org/apache/calcite/sql/SqlCall.html#getMonotonicity-org.apache.calcite.sql.validate.SqlValidatorScope-">getMonotonicity</a>, <a href="../../../../org/apache/calcite/sql/SqlCall.html#isCountStar--">isCountStar</a>, <a href="../../../../org/apache/calcite/sql/SqlCall.html#isExpanded--">isExpanded</a>, <a href="../../../../org/apache/calcite/sql/SqlCall.html#operand-int-">operand</a>, <a href="../../../../org/apache/calcite/sql/SqlCall.html#operandCount--">operandCount</a></code></li>
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 <h3>从类继承的方法&nbsp;org.apache.calcite.sql.<a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a></h3>
 <code><a href="../../../../org/apache/calcite/sql/SqlNode.html#clone--">clone</a>, <a href="../../../../org/apache/calcite/sql/SqlNode.html#clone-E-">clone</a>, <a href="../../../../org/apache/calcite/sql/SqlNode.html#cloneArray-org.apache.calcite.sql.SqlNode:A-">cloneArray</a>, <a href="../../../../org/apache/calcite/sql/SqlNode.html#equalDeep-java.util.List-java.util.List-org.apache.calcite.util.Litmus-">equalDeep</a>, <a href="../../../../org/apache/calcite/sql/SqlNode.html#equalDeep-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-org.apache.calcite.util.Litmus-">equalDeep</a>, <a href="../../../../org/apache/calcite/sql/SqlNode.html#equalsDeep-org.apache.calcite.sql.SqlNode-boolean-">equalsDeep</a>, <a href="../../../../org/apache/calcite/sql/SqlNode.html#getParserPosition--">getParserPosition</a>, <a href="../../../../org/apache/calcite/sql/SqlNode.html#isA-java.util.Set-">isA</a>, <a href="../../../../org/apache/calcite/sql/SqlNode.html#toSqlString-org.apache.calcite.sql.SqlDialect-">toSqlString</a>, <a href="../../../../org/apache/calcite/sql/SqlNode.html#toSqlString-org.apache.calcite.sql.SqlDialect-boolean-">toSqlString</a>, <a href="../../../../org/apache/calcite/sql/SqlNode.html#toSqlString-java.util.function.UnaryOperator-">toSqlString</a>, <a href="../../../../org/apache/calcite/sql/SqlNode.html#toString--">toString</a>, <a href="../../../../org/apache/calcite/sql/SqlNode.html#validateExpr-org.apache.calcite.sql.validate.SqlValidator-org.apache.calcite.sql.validate.SqlValidatorScope-">validateExpr</a></code></li>
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 <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="java.lang中的类或接口">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="java.lang中的类或接口">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="java.lang中的类或接口">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="java.lang中的类或接口">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="java.lang中的类或接口">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="java.lang中的类或接口">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="java.lang中的类或接口">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="java.lang中的类或接口">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="java.lang中的类或接口">wait</a></code></li>
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 <h3>字段详细资料</h3>
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 <h4>FOLLOWING_OPERATOR</h4>
 <pre>public static final&nbsp;<a href="../../../../org/apache/calcite/sql/SqlPostfixOperator.html" title="org.apache.calcite.sql中的类">SqlPostfixOperator</a> FOLLOWING_OPERATOR</pre>
 <div class="block">The FOLLOWING operator used exclusively in a window specification.</div>
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 <pre>public static final&nbsp;<a href="../../../../org/apache/calcite/sql/SqlPostfixOperator.html" title="org.apache.calcite.sql中的类">SqlPostfixOperator</a> PRECEDING_OPERATOR</pre>
 <div class="block">The PRECEDING operator used exclusively in a window specification.</div>
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 <li class="blockList"><a name="constructor.detail">
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 <h3>构造器详细资料</h3>
 <a name="SqlWindow-org.apache.calcite.sql.parser.SqlParserPos-org.apache.calcite.sql.SqlIdentifier-org.apache.calcite.sql.SqlIdentifier-org.apache.calcite.sql.SqlNodeList-org.apache.calcite.sql.SqlNodeList-org.apache.calcite.sql.SqlLiteral-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlLiteral-">
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 <h4>SqlWindow</h4>
 <pre>public&nbsp;SqlWindow(<a href="../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类">SqlParserPos</a>&nbsp;pos,
                  <a href="../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类">SqlIdentifier</a>&nbsp;declName,
                  <a href="../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类">SqlIdentifier</a>&nbsp;refName,
                  <a href="../../../../org/apache/calcite/sql/SqlNodeList.html" title="org.apache.calcite.sql中的类">SqlNodeList</a>&nbsp;partitionList,
                  <a href="../../../../org/apache/calcite/sql/SqlNodeList.html" title="org.apache.calcite.sql中的类">SqlNodeList</a>&nbsp;orderList,
                  <a href="../../../../org/apache/calcite/sql/SqlLiteral.html" title="org.apache.calcite.sql中的类">SqlLiteral</a>&nbsp;isRows,
                  <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;lowerBound,
                  <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;upperBound,
                  <a href="../../../../org/apache/calcite/sql/SqlLiteral.html" title="org.apache.calcite.sql中的类">SqlLiteral</a>&nbsp;allowPartial)</pre>
 <div class="block">Creates a window.</div>
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 <h3>方法详细资料</h3>
 <a name="create-org.apache.calcite.sql.SqlIdentifier-org.apache.calcite.sql.SqlIdentifier-org.apache.calcite.sql.SqlNodeList-org.apache.calcite.sql.SqlNodeList-org.apache.calcite.sql.SqlLiteral-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.SqlLiteral-org.apache.calcite.sql.parser.SqlParserPos-">
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 <h4>create</h4>
 <pre>public static&nbsp;<a href="../../../../org/apache/calcite/sql/SqlWindow.html" title="org.apache.calcite.sql中的类">SqlWindow</a>&nbsp;create(<a href="../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类">SqlIdentifier</a>&nbsp;declName,
                                <a href="../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类">SqlIdentifier</a>&nbsp;refName,
                                <a href="../../../../org/apache/calcite/sql/SqlNodeList.html" title="org.apache.calcite.sql中的类">SqlNodeList</a>&nbsp;partitionList,
                                <a href="../../../../org/apache/calcite/sql/SqlNodeList.html" title="org.apache.calcite.sql中的类">SqlNodeList</a>&nbsp;orderList,
                                <a href="../../../../org/apache/calcite/sql/SqlLiteral.html" title="org.apache.calcite.sql中的类">SqlLiteral</a>&nbsp;isRows,
                                <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;lowerBound,
                                <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;upperBound,
                                <a href="../../../../org/apache/calcite/sql/SqlLiteral.html" title="org.apache.calcite.sql中的类">SqlLiteral</a>&nbsp;allowPartial,
                                <a href="../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类">SqlParserPos</a>&nbsp;pos)</pre>
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 <h4>getOperator</h4>
 <pre>public&nbsp;<a href="../../../../org/apache/calcite/sql/SqlOperator.html" title="org.apache.calcite.sql中的类">SqlOperator</a>&nbsp;getOperator()</pre>
 <dl>
 <dt><span class="overrideSpecifyLabel">指定者:</span></dt>
 <dd><code><a href="../../../../org/apache/calcite/sql/SqlCall.html#getOperator--">getOperator</a></code>&nbsp;在类中&nbsp;<code><a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类">SqlCall</a></code></dd>
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 <a name="getKind--">
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 <h4>getKind</h4>
 <pre>public&nbsp;<a href="../../../../org/apache/calcite/sql/SqlKind.html" title="org.apache.calcite.sql中的枚举">SqlKind</a>&nbsp;getKind()</pre>
 <div class="block"><span class="descfrmTypeLabel">从类复制的说明:&nbsp;<code><a href="../../../../org/apache/calcite/sql/SqlNode.html#getKind--">SqlNode</a></code></span></div>
 <div class="block">Returns the type of node this is, or
  <a href="../../../../org/apache/calcite/sql/SqlKind.html#OTHER"><code>SqlKind.OTHER</code></a> if it's nothing special.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">覆盖:</span></dt>
 <dd><code><a href="../../../../org/apache/calcite/sql/SqlCall.html#getKind--">getKind</a></code>&nbsp;在类中&nbsp;<code><a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类">SqlCall</a></code></dd>
 <dt><span class="returnLabel">返回:</span></dt>
 <dd>a <a href="../../../../org/apache/calcite/sql/SqlKind.html" title="org.apache.calcite.sql中的枚举"><code>SqlKind</code></a> value, never null</dd>
 <dt><span class="seeLabel">另请参阅:</span></dt>
 <dd><a href="../../../../org/apache/calcite/sql/SqlNode.html#isA-java.util.Set-"><code>SqlNode.isA(java.util.Set&lt;org.apache.calcite.sql.SqlKind&gt;)</code></a></dd>
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 <a name="getOperandList--">
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 <h4>getOperandList</h4>
 <pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a>&lt;<a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&gt;&nbsp;getOperandList()</pre>
 <dl>
 <dt><span class="overrideSpecifyLabel">指定者:</span></dt>
 <dd><code><a href="../../../../org/apache/calcite/sql/SqlCall.html#getOperandList--">getOperandList</a></code>&nbsp;在类中&nbsp;<code><a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类">SqlCall</a></code></dd>
 </dl>
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 </ul>
 <a name="setOperand-int-org.apache.calcite.sql.SqlNode-">
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 <h4>setOperand</h4>
 <pre>public&nbsp;void&nbsp;setOperand(int&nbsp;i,
                        <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;operand)</pre>
 <div class="block"><span class="descfrmTypeLabel">从类复制的说明:&nbsp;<code><a href="../../../../org/apache/calcite/sql/SqlCall.html#setOperand-int-org.apache.calcite.sql.SqlNode-">SqlCall</a></code></span></div>
 <div class="block">Changes the value of an operand. Allows some rewrite by
  <a href="../../../../org/apache/calcite/sql/validate/SqlValidator.html" title="org.apache.calcite.sql.validate中的接口"><code>SqlValidator</code></a>; use sparingly.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">覆盖:</span></dt>
 <dd><code><a href="../../../../org/apache/calcite/sql/SqlCall.html#setOperand-int-org.apache.calcite.sql.SqlNode-">setOperand</a></code>&nbsp;在类中&nbsp;<code><a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类">SqlCall</a></code></dd>
 <dt><span class="paramLabel">参数:</span></dt>
 <dd><code>i</code> - Operand index</dd>
 <dd><code>operand</code> - Operand value</dd>
 </dl>
 </li>
 </ul>
 <a name="unparse-org.apache.calcite.sql.SqlWriter-int-int-">
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 <h4>unparse</h4>
 <pre>public&nbsp;void&nbsp;unparse(<a href="../../../../org/apache/calcite/sql/SqlWriter.html" title="org.apache.calcite.sql中的接口">SqlWriter</a>&nbsp;writer,
                     int&nbsp;leftPrec,
                     int&nbsp;rightPrec)</pre>
 <div class="block"><span class="descfrmTypeLabel">从类复制的说明:&nbsp;<code><a href="../../../../org/apache/calcite/sql/SqlNode.html#unparse-org.apache.calcite.sql.SqlWriter-int-int-">SqlNode</a></code></span></div>
 <div class="block">Writes a SQL representation of this node to a writer.

  <p>The <code>leftPrec</code> and <code>rightPrec</code> parameters give
  us enough context to decide whether we need to enclose the expression in
  parentheses. For example, we need parentheses around "2 + 3" if preceded
  by "5 *". This is because the precedence of the "*" operator is greater
  than the precedence of the "+" operator.

  <p>The algorithm handles left- and right-associative operators by giving
  them slightly different left- and right-precedence.

  <p>If <a href="../../../../org/apache/calcite/sql/SqlWriter.html#isAlwaysUseParentheses--"><code>SqlWriter.isAlwaysUseParentheses()</code></a> is true, we use
  parentheses even when they are not required by the precedence rules.

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 <dd><code>writer</code> - Target writer</dd>
 <dd><code>leftPrec</code> - The precedence of the <a href="../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类"><code>SqlNode</code></a> immediately
                   preceding this node in a depth-first scan of the parse
                   tree</dd>
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  For instance sum(non-nullable) over (empty window) is NULL.</div>
 <dl>
 <dt><span class="returnLabel">返回:</span></dt>
 <dd>true when the window is non-empty</dd>
 <dt><span class="seeLabel">另请参阅:</span></dt>
 <dd><a href="../../../../org/apache/calcite/rel/core/Window.Group.html#isAlwaysNonEmpty--"><code>Window.Group.isAlwaysNonEmpty()</code></a>,
 <a href="../../../../org/apache/calcite/sql/SqlOperatorBinding.html#getGroupCount--"><code>SqlOperatorBinding.getGroupCount()</code></a>,
 <a href="../../../../org/apache/calcite/sql/validate/SqlValidatorImpl.html#resolveWindow-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.validate.SqlValidatorScope-boolean-"><code>SqlValidatorImpl.resolveWindow(SqlNode, org.apache.calcite.sql.validate.SqlValidatorScope, boolean)</code></a></dd>
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 <div class="block">Returns whether an expression represents the "CURRENT ROW" bound.</div>
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 <div class="block">Returns whether an expression represents the "UNBOUNDED PRECEDING" bound.</div>
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 <div class="block">Returns whether an expression represents the "UNBOUNDED FOLLOWING" bound.</div>
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                          <a href="../../../../org/apache/calcite/sql/validate/SqlValidator.html" title="org.apache.calcite.sql.validate中的接口">SqlValidator</a>&nbsp;validator)</pre>
 <div class="block">Creates a new window by combining this one with another.

  <p>For example,

  <blockquote><pre>WINDOW (w PARTITION BY x ORDER BY y)
    overlay
    WINDOW w AS (PARTITION BY z)</pre></blockquote>

  <p>yields

  <blockquote><pre>WINDOW (PARTITION BY z ORDER BY y)</pre></blockquote>

  <p>Does not alter this or the other window.</div>
 <dl>
 <dt><span class="returnLabel">返回:</span></dt>
 <dd>A new window</dd>
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 <div class="block">Overridden method to specifically check only the right subtree of a window
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 <dl>
 <dt><span class="overrideSpecifyLabel">覆盖:</span></dt>
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 <dt><span class="paramLabel">参数:</span></dt>
 <dd><code>node</code> - The SqlWindow to compare to "this" window</dd>
 <dd><code>litmus</code> - What to do if an error is detected (nodes are not equal)</dd>
 <dt><span class="returnLabel">返回:</span></dt>
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  in it) will appear to windowed aggregate functions to be empty.</div>
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 <div class="block"><span class="descfrmTypeLabel">从类复制的说明:&nbsp;<code><a href="../../../../org/apache/calcite/sql/SqlCall.html#validate-org.apache.calcite.sql.validate.SqlValidator-org.apache.calcite.sql.validate.SqlValidatorScope-">SqlCall</a></code></span></div>
 <div class="block">Validates this call.

  <p>The default implementation delegates the validation to the operator's
  <a href="../../../../org/apache/calcite/sql/SqlOperator.html#validateCall-org.apache.calcite.sql.SqlCall-org.apache.calcite.sql.validate.SqlValidator-org.apache.calcite.sql.validate.SqlValidatorScope-org.apache.calcite.sql.validate.SqlValidatorScope-"><code>SqlOperator.validateCall(org.apache.calcite.sql.SqlCall, org.apache.calcite.sql.validate.SqlValidator, org.apache.calcite.sql.validate.SqlValidatorScope, org.apache.calcite.sql.validate.SqlValidatorScope)</code></a>. Derived classes may override (as do,
  for example <a href="../../../../org/apache/calcite/sql/SqlSelect.html" title="org.apache.calcite.sql中的类"><code>SqlSelect</code></a> and <a href="../../../../org/apache/calcite/sql/SqlUpdate.html" title="org.apache.calcite.sql中的类"><code>SqlUpdate</code></a>).</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">覆盖:</span></dt>
 <dd><code><a href="../../../../org/apache/calcite/sql/SqlCall.html#validate-org.apache.calcite.sql.validate.SqlValidator-org.apache.calcite.sql.validate.SqlValidatorScope-">validate</a></code>&nbsp;在类中&nbsp;<code><a href="../../../../org/apache/calcite/sql/SqlCall.html" title="org.apache.calcite.sql中的类">SqlCall</a></code></dd>
 <dd><code>scope</code> - Validator</dd>
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 <div class="block">Creates a window <code>(RANGE <i>columnName</i> CURRENT ROW)</code>.</div>
 <dl>
 <dt><span class="paramLabel">参数:</span></dt>
 <dd><code>columnName</code> - Order column</dd>
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 <div class="block">Creates a window <code>(RANGE <i>columnName</i> UNBOUNDED
  PRECEDING)</code>.</div>
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 <dt><span class="paramLabel">参数:</span></dt>
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