mkdocs/docs/api/xml/classiceberg_1_1Transform.xml - iceberg-cpp - Git at Google

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   <compounddef id="classiceberg_1_1Transform" kind="class" language="C++" prot="public">
     <compoundname>iceberg::Transform</compoundname>
     <basecompoundref refid="classiceberg_1_1util_1_1Formattable" prot="public" virt="non-virtual">iceberg::util::Formattable</basecompoundref>
     <includes refid="transform_8h" local="no">transform.h</includes>
     <sectiondef kind="private-attrib">
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         <type><ref refid="transform_8h_1a78b299cfdfb0b9631ca6fc520bd1b131" kindref="member">TransformType</ref></type>
         <definition>TransformType iceberg::Transform::transform_type_</definition>
         <argsstring></argsstring>
         <name>transform_type_</name>
         <qualifiedname>iceberg::Transform::transform_type_</qualifiedname>
         <briefdescription>
         </briefdescription>
         <detaileddescription>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="233" column="17" bodyfile="iceberg/transform.h" bodystart="233" bodyend="-1"/>
       </memberdef>
       <memberdef kind="variable" id="classiceberg_1_1Transform_1a5ea38af8699a331f61be4fed10159724" prot="private" static="no" mutable="no">
         <type>std::variant&lt; std::monostate, int32_t &gt;</type>
         <definition>std::variant&lt;std::monostate, int32_t&gt; iceberg::Transform::param_</definition>
         <argsstring></argsstring>
         <name>param_</name>
         <qualifiedname>iceberg::Transform::param_</qualifiedname>
         <briefdescription>
 <para>Optional parameter (e.g., num_buckets, width) </para>
         </briefdescription>
         <detaileddescription>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="235" column="16" bodyfile="iceberg/transform.h" bodystart="235" bodyend="-1"/>
       </memberdef>
     </sectiondef>
     <sectiondef kind="public-static-func">
       <memberdef kind="function" id="classiceberg_1_1Transform_1ac4af9a6b608050712db9b11906e6f198" prot="public" static="yes" const="no" explicit="no" inline="no" virt="non-virtual">
         <type>std::shared_ptr&lt; <ref refid="classiceberg_1_1Transform" kindref="compound">Transform</ref> &gt;</type>
         <definition>std::shared_ptr&lt; Transform &gt; iceberg::Transform::Identity</definition>
         <argsstring>()</argsstring>
         <name>Identity</name>
         <qualifiedname>iceberg::Transform::Identity</qualifiedname>
         <briefdescription>
 <para>Returns a shared singleton instance of the Identity transform. </para>
         </briefdescription>
         <detaileddescription>
 <para>This transform leaves values unchanged and is commonly used for direct partitioning. <simplesect kind="return"><para>A shared pointer to the Identity transform. </para>
 </simplesect>
 </para>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="96" column="26" bodyfile="iceberg/transform.cc" bodystart="50" bodyend="54"/>
       </memberdef>
       <memberdef kind="function" id="classiceberg_1_1Transform_1ac8370cf16ba3c26216f314dbdac5259a" prot="public" static="yes" const="no" explicit="no" inline="no" virt="non-virtual">
         <type>std::shared_ptr&lt; <ref refid="classiceberg_1_1Transform" kindref="compound">Transform</ref> &gt;</type>
         <definition>std::shared_ptr&lt; Transform &gt; iceberg::Transform::Bucket</definition>
         <argsstring>(int32_t num_buckets)</argsstring>
         <name>Bucket</name>
         <qualifiedname>iceberg::Transform::Bucket</qualifiedname>
         <param>
           <type>int32_t</type>
           <declname>num_buckets</declname>
         </param>
         <briefdescription>
 <para>Creates a shared instance of the Bucket transform. </para>
         </briefdescription>
         <detaileddescription>
 <para>Buckets values using a hash modulo operation. Commonly used for distributing data. <parameterlist kind="param"><parameteritem>
 <parameternamelist>
 <parametername>num_buckets</parametername>
 </parameternamelist>
 <parameterdescription>
 <para>The number of buckets. </para>
 </parameterdescription>
 </parameteritem>
 </parameterlist>
 <simplesect kind="return"><para>A shared pointer to the Bucket transform. </para>
 </simplesect>
 </para>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="103" column="26" bodyfile="iceberg/transform.cc" bodystart="81" bodyend="83"/>
       </memberdef>
       <memberdef kind="function" id="classiceberg_1_1Transform_1a5322807a616aecc18389f959e9d51373" prot="public" static="yes" const="no" explicit="no" inline="no" virt="non-virtual">
         <type>std::shared_ptr&lt; <ref refid="classiceberg_1_1Transform" kindref="compound">Transform</ref> &gt;</type>
         <definition>std::shared_ptr&lt; Transform &gt; iceberg::Transform::Truncate</definition>
         <argsstring>(int32_t width)</argsstring>
         <name>Truncate</name>
         <qualifiedname>iceberg::Transform::Truncate</qualifiedname>
         <param>
           <type>int32_t</type>
           <declname>width</declname>
         </param>
         <briefdescription>
 <para>Creates a shared instance of the Truncate transform. </para>
         </briefdescription>
         <detaileddescription>
 <para>Truncates values to a fixed width (e.g., for strings or binary data). <parameterlist kind="param"><parameteritem>
 <parameternamelist>
 <parametername>width</parametername>
 </parameternamelist>
 <parameterdescription>
 <para>The width to truncate to. </para>
 </parameterdescription>
 </parameteritem>
 </parameterlist>
 <simplesect kind="return"><para>A shared pointer to the Truncate transform. </para>
 </simplesect>
 </para>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="110" column="26" bodyfile="iceberg/transform.cc" bodystart="85" bodyend="87"/>
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         <type>std::shared_ptr&lt; <ref refid="classiceberg_1_1Transform" kindref="compound">Transform</ref> &gt;</type>
         <definition>std::shared_ptr&lt; Transform &gt; iceberg::Transform::Year</definition>
         <argsstring>()</argsstring>
         <name>Year</name>
         <qualifiedname>iceberg::Transform::Year</qualifiedname>
         <briefdescription>
 <para>Creates a shared singleton instance of the Year transform. </para>
         </briefdescription>
         <detaileddescription>
 <para>Extracts the number of years from a date or timestamp since the epoch. <simplesect kind="return"><para>A shared pointer to the Year transform. </para>
 </simplesect>
 </para>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="116" column="26" bodyfile="iceberg/transform.cc" bodystart="56" bodyend="59"/>
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         <type>std::shared_ptr&lt; <ref refid="classiceberg_1_1Transform" kindref="compound">Transform</ref> &gt;</type>
         <definition>std::shared_ptr&lt; Transform &gt; iceberg::Transform::Month</definition>
         <argsstring>()</argsstring>
         <name>Month</name>
         <qualifiedname>iceberg::Transform::Month</qualifiedname>
         <briefdescription>
 <para>Creates a shared singleton instance of the Month transform. </para>
         </briefdescription>
         <detaileddescription>
 <para>Extracts the number of months from a date or timestamp since the epoch. <simplesect kind="return"><para>A shared pointer to the Month transform. </para>
 </simplesect>
 </para>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="122" column="26" bodyfile="iceberg/transform.cc" bodystart="61" bodyend="64"/>
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         <type>std::shared_ptr&lt; <ref refid="classiceberg_1_1Transform" kindref="compound">Transform</ref> &gt;</type>
         <definition>std::shared_ptr&lt; Transform &gt; iceberg::Transform::Day</definition>
         <argsstring>()</argsstring>
         <name>Day</name>
         <qualifiedname>iceberg::Transform::Day</qualifiedname>
         <briefdescription>
 <para>Creates a shared singleton instance of the Day transform. </para>
         </briefdescription>
         <detaileddescription>
 <para>Extracts the number of days from a date or timestamp since the epoch. <simplesect kind="return"><para>A shared pointer to the Day transform. </para>
 </simplesect>
 </para>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="128" column="26" bodyfile="iceberg/transform.cc" bodystart="66" bodyend="69"/>
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         <type>std::shared_ptr&lt; <ref refid="classiceberg_1_1Transform" kindref="compound">Transform</ref> &gt;</type>
         <definition>std::shared_ptr&lt; Transform &gt; iceberg::Transform::Hour</definition>
         <argsstring>()</argsstring>
         <name>Hour</name>
         <qualifiedname>iceberg::Transform::Hour</qualifiedname>
         <briefdescription>
 <para>Creates a shared singleton instance of the Hour transform. </para>
         </briefdescription>
         <detaileddescription>
 <para>Extracts the number of hours from a timestamp since the epoch. <simplesect kind="return"><para>A shared pointer to the Hour transform. </para>
 </simplesect>
 </para>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="134" column="26" bodyfile="iceberg/transform.cc" bodystart="71" bodyend="74"/>
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         <type>std::shared_ptr&lt; <ref refid="classiceberg_1_1Transform" kindref="compound">Transform</ref> &gt;</type>
         <definition>std::shared_ptr&lt; Transform &gt; iceberg::Transform::Void</definition>
         <argsstring>()</argsstring>
         <name>Void</name>
         <qualifiedname>iceberg::Transform::Void</qualifiedname>
         <briefdescription>
 <para>Creates a shared singleton instance of the Void transform. </para>
         </briefdescription>
         <detaileddescription>
 <para>Ignores values and always returns null. Useful for testing or special cases. <simplesect kind="return"><para>A shared pointer to the Void transform. </para>
 </simplesect>
 </para>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="140" column="26" bodyfile="iceberg/transform.cc" bodystart="76" bodyend="79"/>
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         <type><ref refid="transform_8h_1a78b299cfdfb0b9631ca6fc520bd1b131" kindref="member">TransformType</ref></type>
         <definition>TransformType iceberg::Transform::transform_type</definition>
         <argsstring>() const</argsstring>
         <name>transform_type</name>
         <qualifiedname>iceberg::Transform::transform_type</qualifiedname>
         <briefdescription>
 <para>Returns the transform type. </para>
         </briefdescription>
         <detaileddescription>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="143" column="17" bodyfile="iceberg/transform.cc" bodystart="94" bodyend="94"/>
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       <memberdef kind="function" id="classiceberg_1_1Transform_1a4028210e3c0b3d5bfaed8bb07ef4dae6" prot="public" static="no" const="yes" explicit="no" inline="no" virt="non-virtual">
         <type>Result&lt; std::shared_ptr&lt; <ref refid="classiceberg_1_1TransformFunction" kindref="compound">TransformFunction</ref> &gt; &gt;</type>
         <definition>Result&lt; std::shared_ptr&lt; TransformFunction &gt; &gt; iceberg::Transform::Bind</definition>
         <argsstring>(const std::shared_ptr&lt; Type &gt; &amp;source_type) const</argsstring>
         <name>Bind</name>
         <qualifiedname>iceberg::Transform::Bind</qualifiedname>
         <param>
           <type>const std::shared_ptr&lt; <ref refid="classiceberg_1_1Type" kindref="compound">Type</ref> &gt; &amp;</type>
           <declname>source_type</declname>
         </param>
         <briefdescription>
 <para>Binds this transform to a source type, returning a typed <ref refid="classiceberg_1_1TransformFunction" kindref="compound">TransformFunction</ref>. </para>
         </briefdescription>
         <detaileddescription>
 <para>This creates a concrete transform implementation based on the transform type and parameter. <parameterlist kind="param"><parameteritem>
 <parameternamelist>
 <parametername>source_type</parametername>
 </parameternamelist>
 <parameterdescription>
 <para>The source column type to bind to. </para>
 </parameterdescription>
 </parameteritem>
 </parameterlist>
 <simplesect kind="return"><para>A <ref refid="classiceberg_1_1TransformFunction" kindref="compound">TransformFunction</ref> instance wrapped in <computeroutput>expected</computeroutput>, or an error on failure. </para>
 </simplesect>
 </para>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="151" column="10" bodyfile="iceberg/transform.cc" bodystart="96" bodyend="134"/>
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         <type>bool</type>
         <definition>bool iceberg::Transform::CanTransform</definition>
         <argsstring>(const Type &amp;source_type) const</argsstring>
         <name>CanTransform</name>
         <qualifiedname>iceberg::Transform::CanTransform</qualifiedname>
         <param>
           <type>const <ref refid="classiceberg_1_1Type" kindref="compound">Type</ref> &amp;</type>
           <declname>source_type</declname>
         </param>
         <briefdescription>
 <para>Checks whether this function can be applied to the given <ref refid="classiceberg_1_1Type" kindref="compound">Type</ref>. </para>
         </briefdescription>
         <detaileddescription>
 <para><parameterlist kind="param"><parameteritem>
 <parameternamelist>
 <parametername>source_type</parametername>
 </parameternamelist>
 <parameterdescription>
 <para>The source type to check. </para>
 </parameterdescription>
 </parameteritem>
 </parameterlist>
 <simplesect kind="return"><para>true if this transform can be applied to the type, false otherwise </para>
 </simplesect>
 </para>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="157" column="8" bodyfile="iceberg/transform.cc" bodystart="136" bodyend="203"/>
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         <type>bool</type>
         <definition>bool iceberg::Transform::PreservesOrder</definition>
         <argsstring>() const</argsstring>
         <name>PreservesOrder</name>
         <qualifiedname>iceberg::Transform::PreservesOrder</qualifiedname>
         <briefdescription>
 <para>Whether the transform preserves the order of values (is monotonic). </para>
         </briefdescription>
         <detaileddescription>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="160" column="8" bodyfile="iceberg/transform.cc" bodystart="205" bodyend="220"/>
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         <type>bool</type>
         <definition>bool iceberg::Transform::SatisfiesOrderOf</definition>
         <argsstring>(const Transform &amp;other) const</argsstring>
         <name>SatisfiesOrderOf</name>
         <qualifiedname>iceberg::Transform::SatisfiesOrderOf</qualifiedname>
         <param>
           <type>const <ref refid="classiceberg_1_1Transform" kindref="compound">Transform</ref> &amp;</type>
           <declname>other</declname>
         </param>
         <briefdescription>
 <para>Whether ordering by this transform&apos;s result satisfies the ordering of another transform&apos;s result. </para>
         </briefdescription>
         <detaileddescription>
 <para>For example, sorting by day(ts) will produce an ordering that is also by month(ts) or year(ts). However, sorting by day(ts) will not satisfy the order of hour(ts) or identity(ts). <parameterlist kind="param"><parameteritem>
 <parameternamelist>
 <parametername>other</parametername>
 </parameternamelist>
 <parameterdescription>
 <para>The other transform to compare with. </para>
 </parameterdescription>
 </parameteritem>
 </parameterlist>
 <simplesect kind="return"><para>true if ordering by this transform is equivalent to ordering by the other transform. </para>
 </simplesect>
 </para>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="171" column="8" bodyfile="iceberg/transform.cc" bodystart="222" bodyend="249"/>
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         <type>Result&lt; std::unique_ptr&lt; <ref refid="classiceberg_1_1UnboundPredicate" kindref="compound">UnboundPredicate</ref> &gt; &gt;</type>
         <definition>Result&lt; std::unique_ptr&lt; UnboundPredicate &gt; &gt; iceberg::Transform::Project</definition>
         <argsstring>(std::string_view name, const std::shared_ptr&lt; BoundPredicate &gt; &amp;predicate)</argsstring>
         <name>Project</name>
         <qualifiedname>iceberg::Transform::Project</qualifiedname>
         <param>
           <type>std::string_view</type>
           <declname>name</declname>
         </param>
         <param>
           <type>const std::shared_ptr&lt; <ref refid="classiceberg_1_1BoundPredicate" kindref="compound">BoundPredicate</ref> &gt; &amp;</type>
           <declname>predicate</declname>
         </param>
         <briefdescription>
 <para>Transforms a <ref refid="classiceberg_1_1BoundPredicate" kindref="compound">BoundPredicate</ref> to an inclusive predicate on the partition values produced by the transform. </para>
         </briefdescription>
         <detaileddescription>
 <para>This inclusive transform guarantees that if predicate-&gt;Test(value) is true, then Projected(transform(value)) is true. <parameterlist kind="param"><parameteritem>
 <parameternamelist>
 <parametername>name</parametername>
 </parameternamelist>
 <parameterdescription>
 <para>The name of the partition column. </para>
 </parameterdescription>
 </parameteritem>
 <parameteritem>
 <parameternamelist>
 <parametername>predicate</parametername>
 </parameternamelist>
 <parameterdescription>
 <para>The predicate to project. </para>
 </parameterdescription>
 </parameteritem>
 </parameterlist>
 <simplesect kind="return"><para>A Result containing either a unique pointer to the projected predicate, nullptr if the projection cannot be performed, or an <ref refid="structiceberg_1_1Error" kindref="compound">Error</ref> if the projection fails. </para>
 </simplesect>
 </para>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="182" column="10" bodyfile="iceberg/transform.cc" bodystart="251" bodyend="309"/>
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         <type>Result&lt; std::unique_ptr&lt; <ref refid="classiceberg_1_1UnboundPredicate" kindref="compound">UnboundPredicate</ref> &gt; &gt;</type>
         <definition>Result&lt; std::unique_ptr&lt; UnboundPredicate &gt; &gt; iceberg::Transform::ProjectStrict</definition>
         <argsstring>(std::string_view name, const std::shared_ptr&lt; BoundPredicate &gt; &amp;predicate)</argsstring>
         <name>ProjectStrict</name>
         <qualifiedname>iceberg::Transform::ProjectStrict</qualifiedname>
         <param>
           <type>std::string_view</type>
           <declname>name</declname>
         </param>
         <param>
           <type>const std::shared_ptr&lt; <ref refid="classiceberg_1_1BoundPredicate" kindref="compound">BoundPredicate</ref> &gt; &amp;</type>
           <declname>predicate</declname>
         </param>
         <briefdescription>
 <para>Transforms a <ref refid="classiceberg_1_1BoundPredicate" kindref="compound">BoundPredicate</ref> to a strict predicate on the partition values produced by the transform. </para>
         </briefdescription>
         <detaileddescription>
 <para>This strict transform guarantees that if Projected(transform(value)) is true, then predicate-&gt;Test(value) is also true. <parameterlist kind="param"><parameteritem>
 <parameternamelist>
 <parametername>name</parametername>
 </parameternamelist>
 <parameterdescription>
 <para>The name of the partition column. </para>
 </parameterdescription>
 </parameteritem>
 <parameteritem>
 <parameternamelist>
 <parametername>predicate</parametername>
 </parameternamelist>
 <parameterdescription>
 <para>The predicate to project. </para>
 </parameterdescription>
 </parameteritem>
 </parameterlist>
 <simplesect kind="return"><para>A Result containing either a unique pointer to the projected predicate, nullptr if the projection cannot be performed, or an <ref refid="structiceberg_1_1Error" kindref="compound">Error</ref> if the projection fails. </para>
 </simplesect>
 </para>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="194" column="10" bodyfile="iceberg/transform.cc" bodystart="311" bodyend="369"/>
       </memberdef>
       <memberdef kind="function" id="classiceberg_1_1Transform_1afd2e4a6210b3f51f8ea8b44c84428988" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
         <type>Result&lt; std::string &gt;</type>
         <definition>Result&lt; std::string &gt; iceberg::Transform::ToHumanString</definition>
         <argsstring>(const Literal &amp;value)</argsstring>
         <name>ToHumanString</name>
         <qualifiedname>iceberg::Transform::ToHumanString</qualifiedname>
         <param>
           <type>const <ref refid="classiceberg_1_1Literal" kindref="compound">Literal</ref> &amp;</type>
           <declname>value</declname>
         </param>
         <briefdescription>
 <para>Returns a human-readable string representation of a transformed value. </para>
         </briefdescription>
         <detaileddescription>
 <para><parameterlist kind="param"><parameteritem>
 <parameternamelist>
 <parametername>value</parametername>
 </parameternamelist>
 <parameterdescription>
 <para>The literal value to be transformed. </para>
 </parameterdescription>
 </parameteritem>
 </parameterlist>
 <simplesect kind="return"><para>A human-readable string representation of the value </para>
 </simplesect>
 </para>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="201" column="10" bodyfile="iceberg/transform.cc" bodystart="371" bodyend="442"/>
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         <type>std::string</type>
         <definition>std::string iceberg::Transform::ToString</definition>
         <argsstring>() const override</argsstring>
         <name>ToString</name>
         <qualifiedname>iceberg::Transform::ToString</qualifiedname>
         <reimplements refid="classiceberg_1_1util_1_1Formattable_1a79618aca5b3bf63610d9c87ac5ae0386">ToString</reimplements>
         <briefdescription>
 <para>Returns a string representation of this transform (e.g., &quot;bucket[16]&quot;). </para>
         </briefdescription>
         <detaileddescription>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="204" column="15" bodyfile="iceberg/transform.cc" bodystart="448" bodyend="464"/>
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         <type>std::string</type>
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         <argsstring>() const</argsstring>
         <name>DedupName</name>
         <qualifiedname>iceberg::Transform::DedupName</qualifiedname>
         <briefdescription>
 <para>Return the unique transform name to check if similar transforms for the same source field are added multiple times in partition spec builder. </para>
         </briefdescription>
         <detaileddescription>
         </detaileddescription>
         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="208" column="15" bodyfile="iceberg/transform.cc" bodystart="466" bodyend="466"/>
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         <type>Result&lt; std::string &gt;</type>
         <definition>Result&lt; std::string &gt; iceberg::Transform::GeneratePartitionName</definition>
         <argsstring>(std::string_view source_name) const</argsstring>
         <name>GeneratePartitionName</name>
         <qualifiedname>iceberg::Transform::GeneratePartitionName</qualifiedname>
         <param>
           <type>std::string_view</type>
           <declname>source_name</declname>
         </param>
         <briefdescription>
 <para>Generates a partition name for the transform. </para>
         </briefdescription>
         <detaileddescription>
 <para><parameterlist kind="param"><parameteritem>
 <parameternamelist>
 <parametername>source_name</parametername>
 </parameternamelist>
 <parameterdescription>
 <para>The name of the source column. </para>
 </parameterdescription>
 </parameteritem>
 </parameterlist>
 <simplesect kind="return"><para>A string representation of the partition name. </para>
 </simplesect>
 </para>
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         <inbodydescription>
         </inbodydescription>
         <location file="iceberg/transform.h" line="213" column="10" bodyfile="iceberg/transform.cc" bodystart="468" bodyend="487"/>
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 <para>Equality comparison. </para>
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         </detaileddescription>
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 <para><parameterlist kind="param"><parameteritem>
 <parameternamelist>
 <parametername>transform_type</parametername>
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 <para>The transform type (e.g., identity, year, day). </para>
 </parameterdescription>
 </parameteritem>
 </parameterlist>
 </para>
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         </inbodydescription>
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         <param>
           <type>int32_t</type>
           <declname>param</declname>
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 <para>Constructs a parameterized <ref refid="classiceberg_1_1Transform" kindref="compound">Transform</ref> (e.g., bucket(16), truncate(4)). </para>
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         <detaileddescription>
 <para><parameterlist kind="param"><parameteritem>
 <parameternamelist>
 <parametername>transform_type</parametername>
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 <parameterdescription>
 <para>The transform type. </para>
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 <parameteritem>
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 <parametername>param</parametername>
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     <briefdescription>
 <para>Represents a transform used in partitioning or sorting in Iceberg. </para>
     </briefdescription>
     <detaileddescription>
 <para>This class supports binding to a source type and instantiating the corresponding <ref refid="classiceberg_1_1TransformFunction" kindref="compound">TransformFunction</ref>, as well as serialization-friendly introspection. </para>
     </detaileddescription>
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   </compounddef>
 </doxygen>