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 <div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.plan</a></div>
 <h2 title="Enum DeriveMode" class="title">Enum DeriveMode</h2>
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 <li><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang" class="externalLink">java.lang.Enum</a>&lt;<a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a>&gt;</li>
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 <pre>public enum <span class="typeNameLabel">DeriveMode</span>
 extends <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang" class="externalLink">Enum</a>&lt;<a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a>&gt;</pre>
 <div class="block">The mode of trait derivation.</div>
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 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#BOTH">BOTH</a></span></code></th>
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 <div class="block">Iterates over each child, uses current child's traits
  to decide what traits to require from the other
  children.</div>
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 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#LEFT_FIRST">LEFT_FIRST</a></span></code></th>
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 <div class="block">Uses the left most child's traits to decide what
  traits to require from the other children.</div>
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 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#OMAKASE">OMAKASE</a></span></code></th>
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 <div class="block">Leave it to you, you decide what you cook.</div>
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 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#PROHIBITED">PROHIBITED</a></span></code></th>
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 <div class="block">Trait derivation is prohibited.</div>
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 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#RIGHT_FIRST">RIGHT_FIRST</a></span></code></th>
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 <div class="block">Uses the right most child's traits to decide what
  traits to require from the other children.</div>
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 <td class="colFirst"><code>static <a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a></code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#valueOf(java.lang.String)">valueOf</a></span>&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;name)</code></th>
 <td class="colLast">
 <div class="block">Returns the enum constant of this type with the specified name.</div>
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 <td class="colFirst"><code>static <a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a>[]</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#values()">values</a></span>()</code></th>
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 <div class="block">Returns an array containing the constants of this enum type, in
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 <pre>public static final&nbsp;<a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a> LEFT_FIRST</pre>
 <div class="block">Uses the left most child's traits to decide what
  traits to require from the other children. This
  generally applies to most operators.</div>
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 <h4>RIGHT_FIRST</h4>
 <pre>public static final&nbsp;<a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a> RIGHT_FIRST</pre>
 <div class="block">Uses the right most child's traits to decide what
  traits to require from the other children. Operators
  like index nested loop join may find this useful.</div>
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 <h4>BOTH</h4>
 <pre>public static final&nbsp;<a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a> BOTH</pre>
 <div class="block">Iterates over each child, uses current child's traits
  to decide what traits to require from the other
  children. It includes both LEFT_FIRST and RIGHT_FIRST.
  System that doesn't enable join commutativity should
  consider this option. Special customized operators
  like a Join who has 3 inputs may find this useful too.</div>
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 <h4>OMAKASE</h4>
 <pre>public static final&nbsp;<a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a> OMAKASE</pre>
 <div class="block">Leave it to you, you decide what you cook. This will
  allow planner to pass all the traits from all the
  children, the user decides how to make use of these
  traits and whether to derive new rel nodes.</div>
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 <pre>public static final&nbsp;<a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a> PROHIBITED</pre>
 <div class="block">Trait derivation is prohibited.</div>
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 <h4>values</h4>
 <pre class="methodSignature">public static&nbsp;<a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a>[]&nbsp;values()</pre>
 <div class="block">Returns an array containing the constants of this enum type, in
 the order they are declared. This method may be used to iterate
 over the constants as follows:
 <pre>
 for (DeriveMode c : DeriveMode.values())
 &nbsp;   System.out.println(c);
 </pre></div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>an array containing the constants of this enum type, in the order they are declared</dd>
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 <pre class="methodSignature">public static&nbsp;<a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a>&nbsp;valueOf&#8203;(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>&nbsp;name)</pre>
 <div class="block">Returns the enum constant of this type with the specified name.
 The string must match <i>exactly</i> an identifier used to declare an
 enum constant in this type.  (Extraneous whitespace characters are
 not permitted.)</div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>name</code> - the name of the enum constant to be returned.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the enum constant with the specified name</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if this enum type has no constant with the specified name</dd>
 <dd><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang" class="externalLink">NullPointerException</a></code> - if the argument is null</dd>
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	<div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.plan</a></div>
	<h2 title="Enum DeriveMode" class="title">Enum DeriveMode</h2>
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	<ul class="inheritance">
	<li><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">java.lang.Object</a></li>
	<li>
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	<li><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang" class="externalLink">java.lang.Enum</a><<a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a>></li>
	<li>
	<ul class="inheritance">
	<li>org.apache.calcite.plan.DeriveMode</li>
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	<dt>All Implemented Interfaces:</dt>
	<dd><code><a href="https://docs.oracle.com/javase/9/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io" class="externalLink">Serializable</a></code>, <code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang" class="externalLink">Comparable</a><<a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a>></code></dd>
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	<pre>public enum <span class="typeNameLabel">DeriveMode</span>
	extends <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang" class="externalLink">Enum</a><<a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a>></pre>
	<div class="block">The mode of trait derivation.</div>
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	<caption><span>Enum Constants</span><span class="tabEnd"> </span></caption>
	<tr>
	<th class="colFirst" scope="col">Enum Constant</th>
	<th class="colLast" scope="col">Description</th>
	</tr>
	<tr class="altColor">
	<th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#BOTH">BOTH</a></span></code></th>
	<td class="colLast">
	<div class="block">Iterates over each child, uses current child's traits
	to decide what traits to require from the other
	children.</div>
	</td>
	</tr>
	<tr class="rowColor">
	<th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#LEFT_FIRST">LEFT_FIRST</a></span></code></th>
	<td class="colLast">
	<div class="block">Uses the left most child's traits to decide what
	traits to require from the other children.</div>
	</td>
	</tr>
	<tr class="altColor">
	<th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#OMAKASE">OMAKASE</a></span></code></th>
	<td class="colLast">
	<div class="block">Leave it to you, you decide what you cook.</div>
	</td>
	</tr>
	<tr class="rowColor">
	<th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#PROHIBITED">PROHIBITED</a></span></code></th>
	<td class="colLast">
	<div class="block">Trait derivation is prohibited.</div>
	</td>
	</tr>
	<tr class="altColor">
	<th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#RIGHT_FIRST">RIGHT_FIRST</a></span></code></th>
	<td class="colLast">
	<div class="block">Uses the right most child's traits to decide what
	traits to require from the other children.</div>
	</td>
	</tr>
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	<tr>
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	<td class="colFirst"><code>static <a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a></code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#valueOf(java.lang.String)">valueOf</a></span>(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a> name)</code></th>
	<td class="colLast">
	<div class="block">Returns the enum constant of this type with the specified name.</div>
	</td>
	</tr>
	<tr id="i1" class="rowColor">
	<td class="colFirst"><code>static <a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a>[]</code></td>
	<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#values()">values</a></span>()</code></th>
	<td class="colLast">
	<div class="block">Returns an array containing the constants of this enum type, in
	the order they are declared.</div>
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	<code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Enum.html?is-external=true#clone()" title="class or interface in java.lang" class="externalLink">clone</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Enum.html?is-external=true#compareTo(E)" title="class or interface in java.lang" class="externalLink">compareTo</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Enum.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink">equals</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Enum.html?is-external=true#finalize()" title="class or interface in java.lang" class="externalLink">finalize</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Enum.html?is-external=true#getDeclaringClass()" title="class or interface in java.lang" class="externalLink">getDeclaringClass</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Enum.html?is-external=true#hashCode()" title="class or interface in java.lang" class="externalLink">hashCode</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Enum.html?is-external=true#name()" title="class or interface in java.lang" class="externalLink">name</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Enum.html?is-external=true#ordinal()" title="class or interface in java.lang" class="externalLink">ordinal</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Enum.html?is-external=true#toString()" title="class or interface in java.lang" class="externalLink">toString</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Enum.html?is-external=true#valueOf(java.lang.Class,java.lang.String)" title="class or interface in java.lang" class="externalLink">valueOf</a></code></li>
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	<code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink">getClass</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink">notifyAll</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink">wait</a></code></li>
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	<h4>LEFT_FIRST</h4>
	<pre>public static final <a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a> LEFT_FIRST</pre>
	<div class="block">Uses the left most child's traits to decide what
	traits to require from the other children. This
	generally applies to most operators.</div>
	</li>
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	<a id="RIGHT_FIRST">
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	<h4>RIGHT_FIRST</h4>
	<pre>public static final <a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a> RIGHT_FIRST</pre>
	<div class="block">Uses the right most child's traits to decide what
	traits to require from the other children. Operators
	like index nested loop join may find this useful.</div>
	</li>
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	<h4>BOTH</h4>
	<pre>public static final <a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a> BOTH</pre>
	<div class="block">Iterates over each child, uses current child's traits
	to decide what traits to require from the other
	children. It includes both LEFT_FIRST and RIGHT_FIRST.
	System that doesn't enable join commutativity should
	consider this option. Special customized operators
	like a Join who has 3 inputs may find this useful too.</div>
	</li>
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	<a id="OMAKASE">
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	<h4>OMAKASE</h4>
	<pre>public static final <a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a> OMAKASE</pre>
	<div class="block">Leave it to you, you decide what you cook. This will
	allow planner to pass all the traits from all the
	children, the user decides how to make use of these
	traits and whether to derive new rel nodes.</div>
	</li>
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	<h4>PROHIBITED</h4>
	<pre>public static final <a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a> PROHIBITED</pre>
	<div class="block">Trait derivation is prohibited.</div>
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	<a id="values()">
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	<h4>values</h4>
	<pre class="methodSignature">public static <a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a>[] values()</pre>
	<div class="block">Returns an array containing the constants of this enum type, in
	the order they are declared. This method may be used to iterate
	over the constants as follows:
	<pre>
	for (DeriveMode c : DeriveMode.values())
	System.out.println(c);
	</pre></div>
	<dl>
	<dt><span class="returnLabel">Returns:</span></dt>
	<dd>an array containing the constants of this enum type, in the order they are declared</dd>
	</dl>
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	<h4>valueOf</h4>
	<pre class="methodSignature">public static <a href="DeriveMode.html" title="enum in org.apache.calcite.plan">DeriveMode</a> valueOf(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a> name)</pre>
	<div class="block">Returns the enum constant of this type with the specified name.
	The string must match <i>exactly</i> an identifier used to declare an
	enum constant in this type. (Extraneous whitespace characters are
	not permitted.)</div>
	<dl>
	<dt><span class="paramLabel">Parameters:</span></dt>
	<dd><code>name</code> - the name of the enum constant to be returned.</dd>
	<dt><span class="returnLabel">Returns:</span></dt>
	<dd>the enum constant with the specified name</dd>
	<dt><span class="throwsLabel">Throws:</span></dt>
	<dd><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalArgumentException</a></code> - if this enum type has no constant with the specified name</dd>
	<dd><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang" class="externalLink">NullPointerException</a></code> - if the argument is null</dd>
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