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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.config</a></div>
<h2 title="Class CalciteSystemProperty" class="title">Class CalciteSystemProperty&lt;T&gt;</h2>
</div>
<div class="contentContainer">
<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>
<ul class="inheritance">
<li>org.apache.calcite.config.CalciteSystemProperty&lt;T&gt;</li>
</ul>
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<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - the type of the property value</dd>
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<pre>public final class <span class="typeNameLabel">CalciteSystemProperty&lt;T&gt;</span>
extends <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">Object</a></pre>
<div class="block">A Calcite specific system property that is used to configure various aspects of the framework.
<p>Calcite system properties must always be in the "calcite" root namespace.</p></div>
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<h3>Field Summary</h3>
<table class="memberSummary">
<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Field</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ALLOW_INFINITE_COST_CONVERTERS">ALLOW_INFINITE_COST_CONVERTERS</a></span></code></th>
<td class="colLast">
<div class="block">Whether the optimizer will consider adding converters of infinite cost in
order to convert a relational expression from one calling convention to
another.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang" class="externalLink">Integer</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#BINDABLE_CACHE_CONCURRENCY_LEVEL">BINDABLE_CACHE_CONCURRENCY_LEVEL</a></span></code></th>
<td class="colLast">
<div class="block">The concurrency level of the cache used for storing Bindable objects, instantiated via
dynamically generated Java classes.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang" class="externalLink">Integer</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#BINDABLE_CACHE_MAX_SIZE">BINDABLE_CACHE_MAX_SIZE</a></span></code></th>
<td class="colLast">
<div class="block">The maximum size of the cache used for storing Bindable objects, instantiated via
dynamically generated Java classes.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#COMMUTE">COMMUTE</a></span></code></th>
<td class="colLast">
<div class="block">Whether to exploit join commutative property.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEBUG">DEBUG</a></span></code></th>
<td class="colLast">
<div class="block">Whether to run Calcite in debug mode.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<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>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEFAULT_CHARSET">DEFAULT_CHARSET</a></span></code></th>
<td class="colLast">
<div class="block">The name of the default character set.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<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>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEFAULT_COLLATION">DEFAULT_COLLATION</a></span></code></th>
<td class="colLast">
<div class="block">The name of the default collation.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<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>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEFAULT_COLLATION_STRENGTH">DEFAULT_COLLATION_STRENGTH</a></span></code></th>
<td class="colLast">
<div class="block">The strength of the default collation.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<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>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DEFAULT_NATIONAL_CHARSET">DEFAULT_NATIONAL_CHARSET</a></span></code></th>
<td class="colLast">
<div class="block">The name of the default national character set.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DUMP_GRAPHVIZ">DUMP_GRAPHVIZ</a></span></code></th>
<td class="colLast">
<div class="block">Whether to include a GraphViz representation when dumping the state of the Volcano planner.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#DUMP_SETS">DUMP_SETS</a></span></code></th>
<td class="colLast">
<div class="block">Whether to include <code>RelSet</code> information when dumping the state of the Volcano
planner.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ENABLE_COLLATION_TRAIT">ENABLE_COLLATION_TRAIT</a></span></code></th>
<td class="colLast">
<div class="block">Whether to enable the collation trait in the default planner configuration.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ENABLE_ENUMERABLE">ENABLE_ENUMERABLE</a></span></code></th>
<td class="colLast">
<div class="block">Whether the enumerable convention is enabled in the default planner configuration.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ENABLE_REX_DIGEST_NORMALIZE">ENABLE_REX_DIGEST_NORMALIZE</a></span></code></th>
<td class="colLast">
<div class="block">Whether RexNode digest should be normalized (e.g.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ENABLE_STREAM">ENABLE_STREAM</a></span></code></th>
<td class="colLast">
<div class="block">Whether streaming is enabled in the default planner configuration.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ENUMERABLE_ENABLE_TABLESCAN_ARRAY">ENUMERABLE_ENABLE_TABLESCAN_ARRAY</a></span></code></th>
<td class="colLast">
<div class="block">Whether the EnumerableTableScan should support ARRAY fields.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ENUMERABLE_ENABLE_TABLESCAN_MAP">ENUMERABLE_ENABLE_TABLESCAN_MAP</a></span></code></th>
<td class="colLast">
<div class="block">Whether the EnumerableTableScan should support MAP fields.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#ENUMERABLE_ENABLE_TABLESCAN_MULTISET">ENUMERABLE_ENABLE_TABLESCAN_MULTISET</a></span></code></th>
<td class="colLast">
<div class="block">Whether the EnumerableTableScan should support MULTISET fields.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#INTEGRATION_TEST">INTEGRATION_TEST</a></span></code></th>
<td class="colLast">
<div class="block">Whether to run integration tests.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang" class="externalLink">Integer</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#METADATA_HANDLER_CACHE_MAXIMUM_SIZE">METADATA_HANDLER_CACHE_MAXIMUM_SIZE</a></span></code></th>
<td class="colLast">
<div class="block">The maximum size of the cache of metadata handlers.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#STRICT">STRICT</a></span></code></th>
<td class="colLast">
<div class="block">Whether to follow the SQL standard strictly.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#TEST_CASSANDRA">TEST_CASSANDRA</a></span></code></th>
<td class="colLast">
<div class="block">Whether to run Cassandra tests.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<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>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#TEST_DATASET_PATH">TEST_DATASET_PATH</a></span></code></th>
<td class="colLast">
<div class="block">Path to the dataset file that should used for integration tests.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<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>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#TEST_DB">TEST_DB</a></span></code></th>
<td class="colLast">
<div class="block">Which database to use for tests that require a JDBC data source.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#TEST_DRUID">TEST_DRUID</a></span></code></th>
<td class="colLast">
<div class="block">Whether to run Druid tests.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<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>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#TEST_FOODMART_QUERY_IDS">TEST_FOODMART_QUERY_IDS</a></span></code></th>
<td class="colLast">
<div class="block">A list of ids designating the queries
(from query.json in new.hydromatic:foodmart-queries:0.4.1)
that should be run as part of FoodmartTest.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#TEST_MONGODB">TEST_MONGODB</a></span></code></th>
<td class="colLast">
<div class="block">Whether to run MongoDB tests.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#TEST_REDIS">TEST_REDIS</a></span></code></th>
<td class="colLast">
<div class="block">Whether to run Redis tests.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#TEST_SPLUNK">TEST_SPLUNK</a></span></code></th>
<td class="colLast">
<div class="block">Whether to run Splunk tests.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#TOPDOWN_OPT">TOPDOWN_OPT</a></span></code></th>
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<div class="block">Whether to enable top-down optimization.</div>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
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<td class="colFirst"><code><a href="CalciteSystemProperty.html" title="type parameter in CalciteSystemProperty">T</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#value()">value</a></span>()</code></th>
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<div class="block">Returns the value of this property.</div>
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<code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.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/Object.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/Object.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/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#hashCode()" title="class or interface in java.lang" class="externalLink">hashCode</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#toString()" title="class or interface in java.lang" class="externalLink">toString</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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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; DEBUG</pre>
<div class="block">Whether to run Calcite in debug mode.
<p>When debug mode is activated significantly more information is gathered and printed to
STDOUT. It is most commonly used to print and identify problems in generated java code. Debug
mode is also used to perform more verifications at runtime, which are not performed during
normal execution.</p></div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; COMMUTE</pre>
<div class="block">Whether to exploit join commutative property.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; ENABLE_COLLATION_TRAIT</pre>
<div class="block">Whether to enable the collation trait in the default planner configuration.
<p>Some extra optimizations are possible if enabled, but queries should
work either way. At some point this will become a preference, or we will
run multiple phases: first disabled, then enabled.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; ENABLE_ENUMERABLE</pre>
<div class="block">Whether the enumerable convention is enabled in the default planner configuration.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; ENUMERABLE_ENABLE_TABLESCAN_ARRAY</pre>
<div class="block">Whether the EnumerableTableScan should support ARRAY fields.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; ENUMERABLE_ENABLE_TABLESCAN_MAP</pre>
<div class="block">Whether the EnumerableTableScan should support MAP fields.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; ENUMERABLE_ENABLE_TABLESCAN_MULTISET</pre>
<div class="block">Whether the EnumerableTableScan should support MULTISET fields.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; ENABLE_STREAM</pre>
<div class="block">Whether streaming is enabled in the default planner configuration.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; ENABLE_REX_DIGEST_NORMALIZE</pre>
<div class="block">Whether RexNode digest should be normalized (e.g. call operands ordered).
<p>Normalization helps to treat $0=$1 and $1=$0 expressions equal, thus it saves efforts
on planning.</p></div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; STRICT</pre>
<div class="block">Whether to follow the SQL standard strictly.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; DUMP_GRAPHVIZ</pre>
<div class="block">Whether to include a GraphViz representation when dumping the state of the Volcano planner.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; DUMP_SETS</pre>
<div class="block">Whether to include <code>RelSet</code> information when dumping the state of the Volcano
planner.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; TOPDOWN_OPT</pre>
<div class="block">Whether to enable top-down optimization. This config can be overridden
by <a href="CalciteConnectionProperty.html#TOPDOWN_OPT"><code>CalciteConnectionProperty.TOPDOWN_OPT</code></a>.
<p>Note: Enabling top-down optimization will automatically disable
the use of AbstractConverter and related rules.</p></div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; INTEGRATION_TEST</pre>
<div class="block">Whether to run integration tests.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<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>&gt; TEST_DB</pre>
<div class="block">Which database to use for tests that require a JDBC data source.
<p>The property can take one of the following values:
<ul>
<li>HSQLDB (default)</li>
<li>H2</li>
<li>MYSQL</li>
<li>ORACLE</li>
<li>POSTGRESQL</li>
</ul>
<p>If the specified value is not included in the previous list, the default
is used.
<p>We recommend that casual users use hsqldb, and frequent Calcite
developers use MySQL. The test suite runs faster against the MySQL database
(mainly because of the 0.1 second versus 6 seconds startup time). You have
to populate MySQL manually with the foodmart data set, otherwise there will
be test failures.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<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>&gt; TEST_DATASET_PATH</pre>
<div class="block">Path to the dataset file that should used for integration tests.
<p>If a path is not set, then one of the following values will be used:
<ul>
<li>../calcite-test-dataset</li>
<li>../../calcite-test-dataset</li>
<li>.</li>
</ul>
The first valid path that exists in the filesystem will be chosen.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; TEST_MONGODB</pre>
<div class="block">Whether to run MongoDB tests.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; TEST_SPLUNK</pre>
<div class="block">Whether to run Splunk tests.
<p>Disabled by default, because we do not expect Splunk to be installed
and populated with the data set necessary for testing.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; TEST_DRUID</pre>
<div class="block">Whether to run Druid tests.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; TEST_CASSANDRA</pre>
<div class="block">Whether to run Cassandra tests.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; TEST_REDIS</pre>
<div class="block">Whether to run Redis tests.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<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>&gt; TEST_FOODMART_QUERY_IDS</pre>
<div class="block">A list of ids designating the queries
(from query.json in new.hydromatic:foodmart-queries:0.4.1)
that should be run as part of FoodmartTest.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Boolean.html?is-external=true" title="class or interface in java.lang" class="externalLink">Boolean</a>&gt; ALLOW_INFINITE_COST_CONVERTERS</pre>
<div class="block">Whether the optimizer will consider adding converters of infinite cost in
order to convert a relational expression from one calling convention to
another.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<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>&gt; DEFAULT_CHARSET</pre>
<div class="block">The name of the default character set.
<p>It is used by <a href="../sql/validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate"><code>SqlValidator</code></a>.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<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>&gt; DEFAULT_NATIONAL_CHARSET</pre>
<div class="block">The name of the default national character set.
<p>It is used with the N'string' construct in
<a href="../sql/SqlLiteral.html#%3Cinit%3E(java.lang.Object,org.apache.calcite.sql.type.SqlTypeName,org.apache.calcite.sql.parser.SqlParserPos)"><code>SqlLiteral(java.lang.Object, org.apache.calcite.sql.type.SqlTypeName, org.apache.calcite.sql.parser.SqlParserPos)</code></a>
and may be different from the <a href="#DEFAULT_CHARSET"><code>DEFAULT_CHARSET</code></a>.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<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>&gt; DEFAULT_COLLATION</pre>
<div class="block">The name of the default collation.
<p>It is used in <a href="../sql/SqlCollation.html" title="class in org.apache.calcite.sql"><code>SqlCollation</code></a> and
<a href="../sql/SqlLiteral.html#%3Cinit%3E(java.lang.Object,org.apache.calcite.sql.type.SqlTypeName,org.apache.calcite.sql.parser.SqlParserPos)"><code>SqlLiteral(java.lang.Object, org.apache.calcite.sql.type.SqlTypeName, org.apache.calcite.sql.parser.SqlParserPos)</code></a>.</div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<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>&gt; DEFAULT_COLLATION_STRENGTH</pre>
<div class="block">The strength of the default collation.
Allowed values (as defined in <a href="https://docs.oracle.com/javase/9/docs/api/java/text/Collator.html?is-external=true" title="class or interface in java.text" class="externalLink"><code>Collator</code></a>) are: primary, secondary,
tertiary, identical.
<p>It is used in <a href="../sql/SqlCollation.html" title="class in org.apache.calcite.sql"><code>SqlCollation</code></a> and
<a href="../sql/SqlLiteral.html#%3Cinit%3E(java.lang.Object,org.apache.calcite.sql.type.SqlTypeName,org.apache.calcite.sql.parser.SqlParserPos)"><code>SqlLiteral(java.lang.Object, org.apache.calcite.sql.type.SqlTypeName, org.apache.calcite.sql.parser.SqlParserPos)</code></a>.</p></div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang" class="externalLink">Integer</a>&gt; METADATA_HANDLER_CACHE_MAXIMUM_SIZE</pre>
<div class="block">The maximum size of the cache of metadata handlers.
<p>A typical value is the number of queries being concurrently prepared multiplied by the
number of types of metadata.</p>
<p>If the value is less than 0, there is no limit.</p></div>
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<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang" class="externalLink">Integer</a>&gt; BINDABLE_CACHE_MAX_SIZE</pre>
<div class="block">The maximum size of the cache used for storing Bindable objects, instantiated via
dynamically generated Java classes.
<p>The default value is 0.</p>
<p>The property can take any value between [0, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Integer.html?is-external=true#MAX_VALUE" title="class or interface in java.lang" class="externalLink"><code>Integer.MAX_VALUE</code></a>] inclusive. If the
value is not valid (or not specified) then the default value is used.</p>
<p>The cached objects may be quite big so it is suggested to use a rather small cache size
(e.g., 1000). For the most common use cases a number close to 1000 should be enough to
alleviate the performance penalty of compiling and loading classes.</p>
<p>Setting this property to 0 disables the cache.</p></div>
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<h4>BINDABLE_CACHE_CONCURRENCY_LEVEL</h4>
<pre>public static final&nbsp;<a href="CalciteSystemProperty.html" title="class in org.apache.calcite.config">CalciteSystemProperty</a>&lt;<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang" class="externalLink">Integer</a>&gt; BINDABLE_CACHE_CONCURRENCY_LEVEL</pre>
<div class="block">The concurrency level of the cache used for storing Bindable objects, instantiated via
dynamically generated Java classes.
<p>The default value is 1.</p>
<p>The property can take any value between [1, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Integer.html?is-external=true#MAX_VALUE" title="class or interface in java.lang" class="externalLink"><code>Integer.MAX_VALUE</code></a>] inclusive. If the
value is not valid (or not specified) then the default value is used.</p>
<p>This property has no effect if the cache is disabled (i.e., <a href="#BINDABLE_CACHE_MAX_SIZE"><code>BINDABLE_CACHE_MAX_SIZE</code></a>
set to 0.</p></div>
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<h4>value</h4>
<pre class="methodSignature">public&nbsp;<a href="CalciteSystemProperty.html" title="type parameter in CalciteSystemProperty">T</a>&nbsp;value()</pre>
<div class="block">Returns the value of this property.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the value of this property or <code>null</code> if a default value has not been
defined for this property.</dd>
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