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<div class="subTitle">org.apache.calcite.sql.validate</div>
<h2 title="接口 SqlValidatorWithHints" class="title">接口 SqlValidatorWithHints</h2>
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<dt>所有超级接口:</dt>
<dd><a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html" title="org.apache.calcite.sql.validate中的接口">SqlValidator</a></dd>
</dl>
<dl>
<dt>所有已知实现类:</dt>
<dd><a href="../../../../../org/apache/calcite/jdbc/ContextSqlValidator.html" title="org.apache.calcite.jdbc中的类">ContextSqlValidator</a>, <a href="../../../../../org/apache/calcite/sql/advise/SqlAdvisorValidator.html" title="org.apache.calcite.sql.advise中的类">SqlAdvisorValidator</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidatorImpl.html" title="org.apache.calcite.sql.validate中的类">SqlValidatorImpl</a></dd>
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<pre>public interface <span class="typeNameLabel">SqlValidatorWithHints</span>
extends <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html" title="org.apache.calcite.sql.validate中的接口">SqlValidator</a></pre>
<div class="block">Extends <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html" title="org.apache.calcite.sql.validate中的接口"><code>SqlValidator</code></a> to allow discovery of useful data such as fully
qualified names of sql objects, alternative valid sql objects that can be
used in the SQL statement (dubbed as hints)</div>
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<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="t2" class="tableTab"><span><a href="javascript:show(2);">实例方法</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">抽象方法</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><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/validate/SqlMoniker.html" title="org.apache.calcite.sql.validate中的接口">SqlMoniker</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/validate/SqlValidatorWithHints.html#lookupHints-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.parser.SqlParserPos-">lookupHints</a></span>(<a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;topNode,
<a href="../../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类">SqlParserPos</a>&nbsp;pos)</code>
<div class="block">Looks up completion hints for a syntactically correct SQL statement that
has been parsed into an expression tree.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/sql/validate/SqlMoniker.html" title="org.apache.calcite.sql.validate中的接口">SqlMoniker</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/validate/SqlValidatorWithHints.html#lookupQualifiedName-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.parser.SqlParserPos-">lookupQualifiedName</a></span>(<a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;topNode,
<a href="../../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类">SqlParserPos</a>&nbsp;pos)</code>
<div class="block">Looks up the fully qualified name for a <a href="../../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类"><code>SqlIdentifier</code></a> at a given
Parser Position in a parsed expression tree Note: call this only after
<a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#validate-org.apache.calcite.sql.SqlNode-"><code>SqlValidator.validate(org.apache.calcite.sql.SqlNode)</code></a> has been called.</div>
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<h3>从接口继承的方法&nbsp;org.apache.calcite.sql.validate.<a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html" title="org.apache.calcite.sql.validate中的接口">SqlValidator</a></h3>
<code><a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#declareCursor-org.apache.calcite.sql.SqlSelect-org.apache.calcite.sql.validate.SqlValidatorScope-">declareCursor</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#deriveAlias-org.apache.calcite.sql.SqlNode-int-">deriveAlias</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#deriveConstructorType-org.apache.calcite.sql.validate.SqlValidatorScope-org.apache.calcite.sql.SqlCall-org.apache.calcite.sql.SqlFunction-org.apache.calcite.sql.SqlFunction-java.util.List-">deriveConstructorType</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#deriveType-org.apache.calcite.sql.validate.SqlValidatorScope-org.apache.calcite.sql.SqlNode-">deriveType</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#expand-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.validate.SqlValidatorScope-">expand</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#expandOrderExpr-org.apache.calcite.sql.SqlSelect-org.apache.calcite.sql.SqlNode-">expandOrderExpr</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#expandStar-org.apache.calcite.sql.SqlNodeList-org.apache.calcite.sql.SqlSelect-boolean-">expandStar</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#getCatalogReader--">getCatalogReader</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#getColumnReferenceExpansion--">getColumnReferenceExpansion</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#getConformance--">getConformance</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#getDefaultNullCollation--">getDefaultNullCollation</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#getFieldOrigins-org.apache.calcite.sql.SqlNode-">getFieldOrigins</a>, <a 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href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#getOrderScope-org.apache.calcite.sql.SqlSelect-">getOrderScope</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#getOverScope-org.apache.calcite.sql.SqlNode-">getOverScope</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#getParameterRowType-org.apache.calcite.sql.SqlNode-">getParameterRowType</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#getParentCursor-java.lang.String-">getParentCursor</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#getRawSelectScope-org.apache.calcite.sql.SqlSelect-">getRawSelectScope</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#getSelectScope-org.apache.calcite.sql.SqlSelect-">getSelectScope</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#getTypeCoercion--">getTypeCoercion</a>, <a 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href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#validateUpdate-org.apache.calcite.sql.SqlUpdate-">validateUpdate</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#validateWindow-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.validate.SqlValidatorScope-org.apache.calcite.sql.SqlCall-">validateWindow</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#validateWith-org.apache.calcite.sql.SqlWith-org.apache.calcite.sql.validate.SqlValidatorScope-">validateWith</a>, <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#validateWithItem-org.apache.calcite.sql.SqlWithItem-">validateWithItem</a></code></li>
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<h3>方法详细资料</h3>
<a name="lookupHints-org.apache.calcite.sql.SqlNode-org.apache.calcite.sql.parser.SqlParserPos-">
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<h4>lookupHints</h4>
<pre><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/validate/SqlMoniker.html" title="org.apache.calcite.sql.validate中的接口">SqlMoniker</a>&gt;&nbsp;lookupHints(<a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;topNode,
<a href="../../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类">SqlParserPos</a>&nbsp;pos)</pre>
<div class="block">Looks up completion hints for a syntactically correct SQL statement that
has been parsed into an expression tree. (Note this should be called
after <a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#validate-org.apache.calcite.sql.SqlNode-"><code>SqlValidator.validate(org.apache.calcite.sql.SqlNode)</code></a>.</div>
<dl>
<dt><span class="paramLabel">参数:</span></dt>
<dd><code>topNode</code> - top of expression tree in which to lookup completion hints</dd>
<dd><code>pos</code> - indicates the position in the sql statement we want to get
completion hints for. For example, "select a.ename, b.deptno
from sales.emp a join sales.dept b "on a.deptno=b.deptno
where empno=1"; setting pos to 'Line 1, Column 17' returns
all the possible column names that can be selected from
sales.dept table setting pos to 'Line 1, Column 31' returns
all the possible table names in 'sales' schema</dd>
<dt><span class="returnLabel">返回:</span></dt>
<dd>an array of <a href="../../../../../org/apache/calcite/sql/validate/SqlMoniker.html" title="org.apache.calcite.sql.validate中的接口"><code>SqlMoniker</code></a> (sql identifiers) that can fill in
at the indicated position</dd>
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<h4>lookupQualifiedName</h4>
<pre><a href="../../../../../org/apache/calcite/sql/validate/SqlMoniker.html" title="org.apache.calcite.sql.validate中的接口">SqlMoniker</a>&nbsp;lookupQualifiedName(<a href="../../../../../org/apache/calcite/sql/SqlNode.html" title="org.apache.calcite.sql中的类">SqlNode</a>&nbsp;topNode,
<a href="../../../../../org/apache/calcite/sql/parser/SqlParserPos.html" title="org.apache.calcite.sql.parser中的类">SqlParserPos</a>&nbsp;pos)</pre>
<div class="block">Looks up the fully qualified name for a <a href="../../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类"><code>SqlIdentifier</code></a> at a given
Parser Position in a parsed expression tree Note: call this only after
<a href="../../../../../org/apache/calcite/sql/validate/SqlValidator.html#validate-org.apache.calcite.sql.SqlNode-"><code>SqlValidator.validate(org.apache.calcite.sql.SqlNode)</code></a> has been called.</div>
<dl>
<dt><span class="paramLabel">参数:</span></dt>
<dd><code>topNode</code> - top of expression tree in which to lookup the qualified
name for the SqlIdentifier</dd>
<dd><code>pos</code> - indicates the position of the <a href="../../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类"><code>SqlIdentifier</code></a> in
the SQL statement we want to get the qualified
name for</dd>
<dt><span class="returnLabel">返回:</span></dt>
<dd>a string of the fully qualified name of the <a href="../../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类"><code>SqlIdentifier</code></a>
if the Parser position represents a valid <a href="../../../../../org/apache/calcite/sql/SqlIdentifier.html" title="org.apache.calcite.sql中的类"><code>SqlIdentifier</code></a>. Else
return an empty string</dd>
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