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<div class="subTitle">org.apache.calcite.sql.type</div>
<h2 title="Class SqlTypeFactoryImpl" class="title">Class SqlTypeFactoryImpl</h2>
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<li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
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<ul class="inheritance">
<li><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html" title="class in org.apache.calcite.rel.type">org.apache.calcite.rel.type.RelDataTypeFactoryImpl</a></li>
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<ul class="inheritance">
<li>org.apache.calcite.sql.type.SqlTypeFactoryImpl</li>
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<dl>
<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></dd>
</dl>
<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../../org/apache/calcite/jdbc/JavaTypeFactoryImpl.html" title="class in org.apache.calcite.jdbc">JavaTypeFactoryImpl</a></dd>
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<hr>
<br>
<pre>public class <span class="typeNameLabel">SqlTypeFactoryImpl</span>
extends <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html" title="class in org.apache.calcite.rel.type">RelDataTypeFactoryImpl</a></pre>
<div class="block">SqlTypeFactoryImpl provides a default implementation of
<a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type"><code>RelDataTypeFactory</code></a> which supports SQL types.</div>
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<h3>Nested classes/interfaces inherited from class&nbsp;org.apache.calcite.rel.type.<a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html" title="class in org.apache.calcite.rel.type">RelDataTypeFactoryImpl</a></h3>
<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.JavaType.html" title="class in org.apache.calcite.rel.type">RelDataTypeFactoryImpl.JavaType</a></code></li>
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<h3>Nested classes/interfaces inherited from interface&nbsp;org.apache.calcite.rel.type.<a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></h3>
<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.Builder.html" title="class in org.apache.calcite.rel.type">RelDataTypeFactory.Builder</a>, <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.FieldInfo.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory.FieldInfo</a>, <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.FieldInfoBuilder.html" title="class in org.apache.calcite.rel.type">RelDataTypeFactory.FieldInfoBuilder</a></code></li>
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<h3>Fields inherited from class&nbsp;org.apache.calcite.rel.type.<a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html" title="class in org.apache.calcite.rel.type">RelDataTypeFactoryImpl</a></h3>
<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#typeSystem">typeSystem</a></code></li>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colOne" scope="col">Constructor and Description</th>
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<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/type/SqlTypeFactoryImpl.html#SqlTypeFactoryImpl-org.apache.calcite.rel.type.RelDataTypeSystem-">SqlTypeFactoryImpl</a></span>(<a href="../../../../../org/apache/calcite/rel/type/RelDataTypeSystem.html" title="interface in org.apache.calcite.rel.type">RelDataTypeSystem</a>&nbsp;typeSystem)</code>&nbsp;</td>
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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>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<tr id="i0" class="altColor">
<td class="colFirst"><code>protected <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/type/SqlTypeFactoryImpl.html#canonize-org.apache.calcite.rel.type.RelDataType-">canonize</a></span>(<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;type)</code>
<div class="block">Registers a type, or returns the existing type if it is already
registered.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/type/SqlTypeFactoryImpl.html#createArrayType-org.apache.calcite.rel.type.RelDataType-long-">createArrayType</a></span>(<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;elementType,
long&nbsp;maxCardinality)</code>
<div class="block">Creates an array type.</div>
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<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/type/SqlTypeFactoryImpl.html#createMapType-org.apache.calcite.rel.type.RelDataType-org.apache.calcite.rel.type.RelDataType-">createMapType</a></span>(<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;keyType,
<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;valueType)</code>
<div class="block">Creates a map type.</div>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/type/SqlTypeFactoryImpl.html#createMultisetType-org.apache.calcite.rel.type.RelDataType-long-">createMultisetType</a></span>(<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;type,
long&nbsp;maxCardinality)</code>
<div class="block">Creates a multiset type.</div>
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<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/type/SqlTypeFactoryImpl.html#createSqlIntervalType-org.apache.calcite.sql.SqlIntervalQualifier-">createSqlIntervalType</a></span>(<a href="../../../../../org/apache/calcite/sql/SqlIntervalQualifier.html" title="class in org.apache.calcite.sql">SqlIntervalQualifier</a>&nbsp;intervalQualifier)</code>
<div class="block">Creates a SQL interval type.</div>
</td>
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<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/type/SqlTypeFactoryImpl.html#createSqlType-org.apache.calcite.sql.type.SqlTypeName-">createSqlType</a></span>(<a href="../../../../../org/apache/calcite/sql/type/SqlTypeName.html" title="enum in org.apache.calcite.sql.type">SqlTypeName</a>&nbsp;typeName)</code>
<div class="block">Creates a SQL type with no precision or scale.</div>
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<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/type/SqlTypeFactoryImpl.html#createSqlType-org.apache.calcite.sql.type.SqlTypeName-int-">createSqlType</a></span>(<a href="../../../../../org/apache/calcite/sql/type/SqlTypeName.html" title="enum in org.apache.calcite.sql.type">SqlTypeName</a>&nbsp;typeName,
int&nbsp;precision)</code>
<div class="block">Creates a SQL type with length (precision) but no scale.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/type/SqlTypeFactoryImpl.html#createSqlType-org.apache.calcite.sql.type.SqlTypeName-int-int-">createSqlType</a></span>(<a href="../../../../../org/apache/calcite/sql/type/SqlTypeName.html" title="enum in org.apache.calcite.sql.type">SqlTypeName</a>&nbsp;typeName,
int&nbsp;precision,
int&nbsp;scale)</code>
<div class="block">Creates a SQL type with precision and scale.</div>
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<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/type/SqlTypeFactoryImpl.html#createTypeWithCharsetAndCollation-org.apache.calcite.rel.type.RelDataType-java.nio.charset.Charset-org.apache.calcite.sql.SqlCollation-">createTypeWithCharsetAndCollation</a></span>(<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;type,
<a href="https://docs.oracle.com/javase/8/docs/api/java/nio/charset/Charset.html?is-external=true" title="class or interface in java.nio.charset">Charset</a>&nbsp;charset,
<a href="../../../../../org/apache/calcite/sql/SqlCollation.html" title="class in org.apache.calcite.sql">SqlCollation</a>&nbsp;collation)</code>
<div class="block">Creates a type that is the same as another type but with possibly
different charset or collation.</div>
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<tr id="i9" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/type/SqlTypeFactoryImpl.html#createTypeWithNullability-org.apache.calcite.rel.type.RelDataType-boolean-">createTypeWithNullability</a></span>(<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;type,
boolean&nbsp;nullable)</code>
<div class="block">Creates a type that is the same as another type but with possibly
different nullability.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/type/SqlTypeFactoryImpl.html#createUnknownType--">createUnknownType</a></span>()</code>
<div class="block">Creates a SQL type that represents the "unknown" type.</div>
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<tr id="i11" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/type/SqlTypeFactoryImpl.html#leastRestrictive-java.util.List-">leastRestrictive</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&gt;&nbsp;types)</code>
<div class="block">Returns the most general of a set of types (that is, one type to which
they can all be cast), or null if conversion is not possible.</div>
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<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#builder--">builder</a>, <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#canonize-org.apache.calcite.rel.type.StructKind-java.util.List-java.util.List-">canonize</a>, <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#canonize-org.apache.calcite.rel.type.StructKind-java.util.List-java.util.List-boolean-">canonize</a>, <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#copyType-org.apache.calcite.rel.type.RelDataType-">copyType</a>, <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#createDecimalProduct-org.apache.calcite.rel.type.RelDataType-org.apache.calcite.rel.type.RelDataType-">createDecimalProduct</a>, <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#createDecimalQuotient-org.apache.calcite.rel.type.RelDataType-org.apache.calcite.rel.type.RelDataType-">createDecimalQuotient</a>, <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#createJavaType-java.lang.Class-">createJavaType</a>, <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#createJoinType-org.apache.calcite.rel.type.RelDataType...-">createJoinType</a>, <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#createStructType-java.util.List-">createStructType</a>, <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#createStructType-java.util.List-java.util.List-">createStructType</a>, <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#createStructType-org.apache.calcite.rel.type.RelDataTypeFactory.FieldInfo-">createStructType</a>, <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#createStructType-org.apache.calcite.rel.type.StructKind-java.util.List-java.util.List-">createStructType</a>, <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#decimalOf-org.apache.calcite.rel.type.RelDataType-">decimalOf</a>, <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#getDefaultCharset--">getDefaultCharset</a>, <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#getTypeSystem--">getTypeSystem</a>, <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#isJavaType-org.apache.calcite.rel.type.RelDataType-">isJavaType</a>, <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#leastRestrictiveStructuredType-java.util.List-">leastRestrictiveStructuredType</a>, <a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#useDoubleMultiplication-org.apache.calcite.rel.type.RelDataType-org.apache.calcite.rel.type.RelDataType-">useDoubleMultiplication</a></code></li>
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<h4>SqlTypeFactoryImpl</h4>
<pre>public&nbsp;SqlTypeFactoryImpl(<a href="../../../../../org/apache/calcite/rel/type/RelDataTypeSystem.html" title="interface in org.apache.calcite.rel.type">RelDataTypeSystem</a>&nbsp;typeSystem)</pre>
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<h4>createSqlType</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;createSqlType(<a href="../../../../../org/apache/calcite/sql/type/SqlTypeName.html" title="enum in org.apache.calcite.sql.type">SqlTypeName</a>&nbsp;typeName)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html#createSqlType-org.apache.calcite.sql.type.SqlTypeName-">RelDataTypeFactory</a></code></span></div>
<div class="block">Creates a SQL type with no precision or scale.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>typeName</code> - Name of the type, for example <a href="../../../../../org/apache/calcite/sql/type/SqlTypeName.html#BOOLEAN"><code>SqlTypeName.BOOLEAN</code></a>,
never null</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>canonical type descriptor</dd>
</dl>
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<h4>createSqlType</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;createSqlType(<a href="../../../../../org/apache/calcite/sql/type/SqlTypeName.html" title="enum in org.apache.calcite.sql.type">SqlTypeName</a>&nbsp;typeName,
int&nbsp;precision)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html#createSqlType-org.apache.calcite.sql.type.SqlTypeName-int-">RelDataTypeFactory</a></code></span></div>
<div class="block">Creates a SQL type with length (precision) but no scale.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>typeName</code> - Name of the type, for example <a href="../../../../../org/apache/calcite/sql/type/SqlTypeName.html#VARCHAR"><code>SqlTypeName.VARCHAR</code></a>.
Never null.</dd>
<dd><code>precision</code> - Maximum length of the value (non-numeric types) or the
precision of the value (numeric/datetime types).
Must be non-negative or
<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html#PRECISION_NOT_SPECIFIED"><code>RelDataType.PRECISION_NOT_SPECIFIED</code></a>.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>canonical type descriptor</dd>
</dl>
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<h4>createSqlType</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;createSqlType(<a href="../../../../../org/apache/calcite/sql/type/SqlTypeName.html" title="enum in org.apache.calcite.sql.type">SqlTypeName</a>&nbsp;typeName,
int&nbsp;precision,
int&nbsp;scale)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html#createSqlType-org.apache.calcite.sql.type.SqlTypeName-int-int-">RelDataTypeFactory</a></code></span></div>
<div class="block">Creates a SQL type with precision and scale.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>typeName</code> - Name of the type, for example <a href="../../../../../org/apache/calcite/sql/type/SqlTypeName.html#DECIMAL"><code>SqlTypeName.DECIMAL</code></a>.
Never null.</dd>
<dd><code>precision</code> - Precision of the value.
Must be non-negative or
<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html#PRECISION_NOT_SPECIFIED"><code>RelDataType.PRECISION_NOT_SPECIFIED</code></a>.</dd>
<dd><code>scale</code> - scale of the values, i.e. the number of decimal places to
shift the value. For example, a NUMBER(10,3) value of
"123.45" is represented "123450" (that is, multiplied by
10^3). A negative scale <em>is</em> valid.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>canonical type descriptor</dd>
</dl>
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<h4>createUnknownType</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;createUnknownType()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html#createUnknownType--">RelDataTypeFactory</a></code></span></div>
<div class="block">Creates a SQL type that represents the "unknown" type.
It is only equal to itself, and is distinct from the NULL type.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>unknown type</dd>
</dl>
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<h4>createMultisetType</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;createMultisetType(<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;type,
long&nbsp;maxCardinality)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html#createMultisetType-org.apache.calcite.rel.type.RelDataType-long-">RelDataTypeFactory</a></code></span></div>
<div class="block">Creates a multiset type. Multisets are unordered collections of elements.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>type</code> - type of the elements of the multiset</dd>
<dd><code>maxCardinality</code> - maximum collection size, or -1 for unlimited</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>canonical multiset type descriptor</dd>
</dl>
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<h4>createArrayType</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;createArrayType(<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;elementType,
long&nbsp;maxCardinality)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html#createArrayType-org.apache.calcite.rel.type.RelDataType-long-">RelDataTypeFactory</a></code></span></div>
<div class="block">Creates an array type. Arrays are ordered collections of elements.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>elementType</code> - type of the elements of the array</dd>
<dd><code>maxCardinality</code> - maximum array size, or -1 for unlimited</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>canonical array type descriptor</dd>
</dl>
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<pre>public&nbsp;<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;createMapType(<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;keyType,
<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;valueType)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html#createMapType-org.apache.calcite.rel.type.RelDataType-org.apache.calcite.rel.type.RelDataType-">RelDataTypeFactory</a></code></span></div>
<div class="block">Creates a map type. Maps are unordered collections of key/value pairs.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>keyType</code> - type of the keys of the map</dd>
<dd><code>valueType</code> - type of the values of the map</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>canonical map type descriptor</dd>
</dl>
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<h4>createSqlIntervalType</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;createSqlIntervalType(<a href="../../../../../org/apache/calcite/sql/SqlIntervalQualifier.html" title="class in org.apache.calcite.sql">SqlIntervalQualifier</a>&nbsp;intervalQualifier)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html#createSqlIntervalType-org.apache.calcite.sql.SqlIntervalQualifier-">RelDataTypeFactory</a></code></span></div>
<div class="block">Creates a SQL interval type.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>intervalQualifier</code> - contains information if it is a year-month or a
day-time interval along with precision information</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>canonical type descriptor</dd>
</dl>
</li>
</ul>
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<h4>createTypeWithCharsetAndCollation</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;createTypeWithCharsetAndCollation(<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;type,
<a href="https://docs.oracle.com/javase/8/docs/api/java/nio/charset/Charset.html?is-external=true" title="class or interface in java.nio.charset">Charset</a>&nbsp;charset,
<a href="../../../../../org/apache/calcite/sql/SqlCollation.html" title="class in org.apache.calcite.sql">SqlCollation</a>&nbsp;collation)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html#createTypeWithCharsetAndCollation-org.apache.calcite.rel.type.RelDataType-java.nio.charset.Charset-org.apache.calcite.sql.SqlCollation-">RelDataTypeFactory</a></code></span></div>
<div class="block">Creates a type that is the same as another type but with possibly
different charset or collation. For types without a concept of charset or
collation this function must throw an error.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>type</code> - input type</dd>
<dd><code>charset</code> - charset to assign</dd>
<dd><code>collation</code> - collation to assign</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>output type, same as input type except with specified charset and
collation</dd>
</dl>
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<h4>leastRestrictive</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;leastRestrictive(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&gt;&nbsp;types)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html#leastRestrictive-java.util.List-">RelDataTypeFactory</a></code></span></div>
<div class="block">Returns the most general of a set of types (that is, one type to which
they can all be cast), or null if conversion is not possible. The result
may be a new type that is less restrictive than any of the input types,
e.g. <code>leastRestrictive(INT, NUMERIC(3, 2))</code> could be
<code>NUMERIC(12, 2)</code>.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html#leastRestrictive-java.util.List-">leastRestrictive</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#leastRestrictive-java.util.List-">leastRestrictive</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html" title="class in org.apache.calcite.rel.type">RelDataTypeFactoryImpl</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>types</code> - input types to be combined using union (not null, not empty)</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>canonical union type descriptor</dd>
</dl>
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<h4>createTypeWithNullability</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;createTypeWithNullability(<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;type,
boolean&nbsp;nullable)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html#createTypeWithNullability-org.apache.calcite.rel.type.RelDataType-boolean-">RelDataTypeFactory</a></code></span></div>
<div class="block">Creates a type that is the same as another type but with possibly
different nullability. The output type may be identical to the input
type. For type systems without a concept of nullability, the return value
is always the same as the input.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html#createTypeWithNullability-org.apache.calcite.rel.type.RelDataType-boolean-">createTypeWithNullability</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#createTypeWithNullability-org.apache.calcite.rel.type.RelDataType-boolean-">createTypeWithNullability</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html" title="class in org.apache.calcite.rel.type">RelDataTypeFactoryImpl</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>type</code> - input type</dd>
<dd><code>nullable</code> - true to request a nullable type; false to request a NOT
NULL type</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>output type, same as input type except with specified nullability</dd>
</dl>
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</ul>
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<h4>canonize</h4>
<pre>protected&nbsp;<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;canonize(<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>&nbsp;type)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#canonize-org.apache.calcite.rel.type.RelDataType-">RelDataTypeFactoryImpl</a></code></span></div>
<div class="block">Registers a type, or returns the existing type if it is already
registered.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html#canonize-org.apache.calcite.rel.type.RelDataType-">canonize</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/calcite/rel/type/RelDataTypeFactoryImpl.html" title="class in org.apache.calcite.rel.type">RelDataTypeFactoryImpl</a></code></dd>
</dl>
</li>
</ul>
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