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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `value` mod in crate `datatypes`."><title>datatypes::value - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../static.files/storage-e2aeef58.js"></script><script defer src="../sidebar-items.js"></script><script defer src="../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc mod"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">Module value</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../datatypes/index.html">datatypes</a><span class="version">1.0.0-beta.3</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module value</a></h2><h3><a href="#macros">Module Items</a></h3><ul class="block"><li><a href="#macros" title="Macros">Macros</a></li><li><a href="#structs" title="Structs">Structs</a></li><li><a href="#enums" title="Enums">Enums</a></li><li><a href="#traits" title="Traits">Traits</a></li><li><a href="#functions" title="Functions">Functions</a></li><li><a href="#types" title="Type Aliases">Type Aliases</a></li></ul></section><div id="rustdoc-modnav"><h2 class="in-crate"><a href="../index.html">In crate datatypes</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">datatypes</a></div><h1>Module <span>value</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/datatypes/value.rs.html#15-3217">Source</a> </span></div><h2 id="macros" class="section-header">Macros<a href="#macros" class="anchor">§</a></h2><dl class="item-table"><dt><a class="macro" href="macro.define_data_type_func.html" title="macro datatypes::value::define_data_type_func">define_<wbr>data_<wbr>type_<wbr>func</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dt><a class="macro" href="macro.impl_as_for_value_ref.html" title="macro datatypes::value::impl_as_for_value_ref">impl_<wbr>as_<wbr>for_<wbr>value_<wbr>ref</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dt><a class="macro" href="macro.impl_ord_for_value_like.html" title="macro datatypes::value::impl_ord_for_value_like">impl_<wbr>ord_<wbr>for_<wbr>value_<wbr>like</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dt><a class="macro" href="macro.impl_try_as_primitive.html" title="macro datatypes::value::impl_try_as_primitive">impl_<wbr>try_<wbr>as_<wbr>primitive</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dt><a class="macro" href="macro.impl_try_from_value.html" title="macro datatypes::value::impl_try_from_value">impl_<wbr>try_<wbr>from_<wbr>value</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dt><a class="macro" href="macro.impl_value_from.html" title="macro datatypes::value::impl_value_from">impl_<wbr>value_<wbr>from</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dt><a class="macro" href="macro.impl_value_ref_from.html" title="macro datatypes::value::impl_value_ref_from">impl_<wbr>value_<wbr>ref_<wbr>from</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt></dl><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><dl class="item-table"><dt><a class="struct" href="struct.DictionaryValue.html" title="struct datatypes::value::DictionaryValue">Dictionary<wbr>Value</a></dt><dd>Dictionary value.</dd><dt><a class="struct" href="struct.ListValue.html" title="struct datatypes::value::ListValue">List<wbr>Value</a></dt><dd>List value.</dd><dt><a class="struct" href="struct.OrderedFloat.html" title="struct datatypes::value::OrderedFloat">Ordered<wbr>Float</a></dt><dd>A wrapper around floats providing implementations of <code>Eq</code>, <code>Ord</code>, and <code>Hash</code>.</dd><dt><a class="struct" href="struct.StructValue.html" title="struct datatypes::value::StructValue">Struct<wbr>Value</a></dt></dl><h2 id="enums" class="section-header">Enums<a href="#enums" class="anchor">§</a></h2><dl class="item-table"><dt><a class="enum" href="enum.ListValueRef.html" title="enum datatypes::value::ListValueRef">List<wbr>Value<wbr>Ref</a></dt><dd>Reference to a <a href="struct.ListValue.html" title="struct datatypes::value::ListValue">ListValue</a>.</dd><dt><a class="enum" href="enum.StructValueRef.html" title="enum datatypes::value::StructValueRef">Struct<wbr>Value<wbr>Ref</a></dt><dt><a class="enum" href="enum.Value.html" title="enum datatypes::value::Value">Value</a></dt><dd>Value holds a single arbitrary value of any <a href="../data_type/trait.DataType.html" title="trait datatypes::data_type::DataType">DataType</a>.</dd><dt><a class="enum" href="enum.ValueRef.html" title="enum datatypes::value::ValueRef">Value<wbr>Ref</a></dt><dd>Reference to <a href="enum.Value.html" title="enum datatypes::value::Value">Value</a>.</dd></dl><h2 id="traits" class="section-header">Traits<a href="#traits" class="anchor">§</a></h2><dl class="item-table"><dt><a class="trait" href="trait.TryAsPrimitive.html" title="trait datatypes::value::TryAsPrimitive">TryAs<wbr>Primitive</a></dt></dl><h2 id="functions" class="section-header">Functions<a href="#functions" class="anchor">§</a></h2><dl class="item-table"><dt><a class="fn" href="fn.duration_to_scalar_value.html" title="fn datatypes::value::duration_to_scalar_value">duration_<wbr>to_<wbr>scalar_<wbr>value</a></dt><dd>Cast the 64-bit duration into the arrow ScalarValue with time unit.</dd><dt><a class="fn" href="fn.scalar_value_to_timestamp.html" title="fn datatypes::value::scalar_value_to_timestamp">scalar_<wbr>value_<wbr>to_<wbr>timestamp</a></dt><dd>Convert [<code>ScalarValue</code>] to [<code>Timestamp</code>].
If its <code>ScalarValue::Utf8</code>, try to parse it with the given timezone.
Return <code>None</code> if given scalar value cannot be converted to a valid timestamp.</dd><dt><a class="fn" href="fn.time_to_scalar_value.html" title="fn datatypes::value::time_to_scalar_value">time_<wbr>to_<wbr>scalar_<wbr>value</a></dt><dd>Cast the 64-bit elapsed time into the arrow ScalarValue by time unit.</dd><dt><a class="fn" href="fn.timestamp_to_scalar_value.html" title="fn datatypes::value::timestamp_to_scalar_value">timestamp_<wbr>to_<wbr>scalar_<wbr>value</a></dt><dt><a class="fn" href="fn.to_null_scalar_value.html" title="fn datatypes::value::to_null_scalar_value">to_<wbr>null_<wbr>scalar_<wbr>value</a></dt></dl><h2 id="types" class="section-header">Type Aliases<a href="#types" class="anchor">§</a></h2><dl class="item-table"><dt><a class="type" href="type.OrderedF32.html" title="type datatypes::value::OrderedF32">Ordered<wbr>F32</a></dt><dt><a class="type" href="type.OrderedF64.html" title="type datatypes::value::OrderedF64">Ordered<wbr>F64</a></dt></dl></section></div></main></body></html>