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<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.rel.type</a></div>
<h1 title="Interface RelProtoDataType" class="title">Interface RelProtoDataType</h1>
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<dt>All Superinterfaces:</dt>
<dd><code><a href="../../linq4j/function/Function.html" title="interface in org.apache.calcite.linq4j.function">Function</a>&lt;<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&gt;</code>, <code><a href="../../linq4j/function/Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a>&lt;<a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a>,<wbr><a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&gt;</code></dd>
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<div class="type-signature"><span class="modifiers">public interface </span><span class="element-name type-name-label">RelProtoDataType</span><span class="extends-implements">
extends <a href="../../linq4j/function/Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a>&lt;<a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a>,<wbr><a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&gt;</span></div>
<div class="block">Can be converted into a <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type"><code>RelDataType</code></a> given a
<a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type"><code>RelDataTypeFactory</code></a>.</div>
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<dt>See Also:</dt>
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<ul class="see-list-long">
<li><a href="RelDataTypeImpl.html#proto(org.apache.calcite.rel.type.RelDataType)"><code>RelDataTypeImpl.proto(org.apache.calcite.rel.type.RelDataType)</code></a></li>
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<h3 id="fields-inherited-from-class-org.apache.calcite.linq4j.function.Function1">Fields inherited from interface&nbsp;org.apache.calcite.linq4j.function.<a href="../../linq4j/function/Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a></h3>
<code><a href="../../linq4j/function/Function1.html#IDENTITY">IDENTITY</a></code></div>
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<h3 id="methods-inherited-from-class-org.apache.calcite.linq4j.function.Function1">Methods inherited from interface&nbsp;org.apache.calcite.linq4j.function.<a href="../../linq4j/function/Function1.html" title="interface in org.apache.calcite.linq4j.function">Function1</a></h3>
<code><a href="../../linq4j/function/Function1.html#apply(T0)">apply</a></code></div>
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