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| <h2 title="类 PigRelSqlUdfs" class="title">类 PigRelSqlUdfs</h2> |
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| <li>org.apache.calcite.piglet.PigRelSqlUdfs</li> |
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| <pre>public class <span class="typeNameLabel">PigRelSqlUdfs</span> |
| extends <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">Object</a></pre> |
| <div class="block">User-defined functions (<a href="../../../../org/apache/calcite/sql/validate/SqlUserDefinedFunction.html" title="org.apache.calcite.sql.validate中的类"><code>UDFs</code></a>) |
| needed for Pig-to-<a href="../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口"><code>RelNode</code></a> translation.</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"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">静态方法</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">具体方法</a></span><span class="tabEnd"> </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 org.apache.pig.data.Tuple</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/piglet/PigRelSqlUdfs.html#buildBag-java.lang.Object...-">buildBag</a></span>(<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">Object</a>... elements)</code> |
| <div class="block">Implementation for PIG_BAG functions.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static org.apache.pig.data.Tuple</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/piglet/PigRelSqlUdfs.html#buildTuple-java.lang.Object...-">buildTuple</a></span>(<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">Object</a>... elements)</code> |
| <div class="block">Implementation for PIG_TUPLE functions.</div> |
| </td> |
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| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <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></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/piglet/PigRelSqlUdfs.html#projectMultiset-java.lang.Object...-">projectMultiset</a></span>(<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">Object</a>... objects)</code> |
| <div class="block">Implementation for BAG_PROJECTION functions.</div> |
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| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="java.lang中的类或接口">clone</a>, <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#toString--" title="java.lang中的类或接口">toString</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>方法详细资料</h3> |
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| <h4>buildTuple</h4> |
| <pre>public static org.apache.pig.data.Tuple buildTuple(<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">Object</a>... elements)</pre> |
| <div class="block">Implementation for PIG_TUPLE functions. Builds a Pig Tuple from |
| an array of objects</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>elements</code> - Array of element objects</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Pig Tuple</dd> |
| </dl> |
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| <pre>public static org.apache.pig.data.Tuple buildBag(<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">Object</a>... elements)</pre> |
| <div class="block">Implementation for PIG_BAG functions. Builds a Pig DataBag from |
| the corresponding input</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>elements</code> - Input that contains a bag</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Pig Tuple</dd> |
| </dl> |
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| <h4>projectMultiset</h4> |
| <pre>public static <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> projectMultiset(<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">Object</a>... objects)</pre> |
| <div class="block">Implementation for BAG_PROJECTION functions. Builds a new multiset by |
| projecting certain columns from another multiset.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>objects</code> - Input argument, the first one is a multiset, the remaining |
| are indexes of column to project.</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>The projected multiset</dd> |
| </dl> |
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