greptimedb/common_query/native_histogram/index.html

<!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="Shared native histogram field contract."><title>common_query::native_histogram - 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-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="common_query" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.0-nightly (ac7f9ec7d 2026-03-20)" data-channel="nightly" data-search-js="search-63369b7b.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../sidebar-items.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.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"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[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 native_histogram</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../common_query/index.html">common_<wbr>query</a><span class="version">1.2.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module native_<wbr>histogram</a></h2><h3><a href="#constants">Module Items</a></h3><ul class="block"><li><a href="#constants" title="Constants">Constants</a></li><li><a href="#statics" title="Statics">Statics</a></li><li><a href="#functions" title="Functions">Functions</a></li></ul></section><div id="rustdoc-modnav"><h2 class="in-crate"><a href="../index.html">In crate common_<wbr>query</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" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">common_query</a></div><h1>Module <span>native_<wbr>histogram</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/common_query/native_histogram.rs.html#15-111">Source</a> </span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Shared native histogram field contract.</p>
<p>Prom remote-write v2 stores these names as children of one Struct field, while
metric-engine uses the same contract to recognize native histogram tables.</p>
</div></details><h2 id="constants" class="section-header">Constants<a href="#constants" class="anchor">§</a></h2><dl class="item-table"><dt><a class="constant" href="constant.COUNT_F64_FIELD.html" title="constant common_query::native_histogram::COUNT_F64_FIELD">COUNT_<wbr>F64_<wbr>FIELD</a></dt><dt><a class="constant" href="constant.COUNT_U64_FIELD.html" title="constant common_query::native_histogram::COUNT_U64_FIELD">COUNT_<wbr>U64_<wbr>FIELD</a></dt><dt><a class="constant" href="constant.CUSTOM_VALUES_FIELD.html" title="constant common_query::native_histogram::CUSTOM_VALUES_FIELD">CUSTOM_<wbr>VALUES_<wbr>FIELD</a></dt><dt><a class="constant" href="constant.NATIVE_HISTOGRAM_FIELD.html" title="constant common_query::native_histogram::NATIVE_HISTOGRAM_FIELD">NATIVE_<wbr>HISTOGRAM_<wbr>FIELD</a></dt><dt><a class="constant" href="constant.NATIVE_HISTOGRAM_FIELD_NAMES.html" title="constant common_query::native_histogram::NATIVE_HISTOGRAM_FIELD_NAMES">NATIVE_<wbr>HISTOGRAM_<wbr>FIELD_<wbr>NAMES</a></dt><dt><a class="constant" href="constant.NEGATIVE_BUCKETS_F64_FIELD.html" title="constant common_query::native_histogram::NEGATIVE_BUCKETS_F64_FIELD">NEGATIVE_<wbr>BUCKETS_<wbr>F64_<wbr>FIELD</a></dt><dt><a class="constant" href="constant.NEGATIVE_BUCKETS_I64_FIELD.html" title="constant common_query::native_histogram::NEGATIVE_BUCKETS_I64_FIELD">NEGATIVE_<wbr>BUCKETS_<wbr>I64_<wbr>FIELD</a></dt><dt><a class="constant" href="constant.NEGATIVE_SPAN_LENGTHS_FIELD.html" title="constant common_query::native_histogram::NEGATIVE_SPAN_LENGTHS_FIELD">NEGATIVE_<wbr>SPAN_<wbr>LENGTHS_<wbr>FIELD</a></dt><dt><a class="constant" href="constant.NEGATIVE_SPAN_OFFSETS_FIELD.html" title="constant common_query::native_histogram::NEGATIVE_SPAN_OFFSETS_FIELD">NEGATIVE_<wbr>SPAN_<wbr>OFFSETS_<wbr>FIELD</a></dt><dt><a class="constant" href="constant.POSITIVE_BUCKETS_F64_FIELD.html" title="constant common_query::native_histogram::POSITIVE_BUCKETS_F64_FIELD">POSITIVE_<wbr>BUCKETS_<wbr>F64_<wbr>FIELD</a></dt><dt><a class="constant" href="constant.POSITIVE_BUCKETS_I64_FIELD.html" title="constant common_query::native_histogram::POSITIVE_BUCKETS_I64_FIELD">POSITIVE_<wbr>BUCKETS_<wbr>I64_<wbr>FIELD</a></dt><dt><a class="constant" href="constant.POSITIVE_SPAN_LENGTHS_FIELD.html" title="constant common_query::native_histogram::POSITIVE_SPAN_LENGTHS_FIELD">POSITIVE_<wbr>SPAN_<wbr>LENGTHS_<wbr>FIELD</a></dt><dt><a class="constant" href="constant.POSITIVE_SPAN_OFFSETS_FIELD.html" title="constant common_query::native_histogram::POSITIVE_SPAN_OFFSETS_FIELD">POSITIVE_<wbr>SPAN_<wbr>OFFSETS_<wbr>FIELD</a></dt><dt><a class="constant" href="constant.RESET_HINT_FIELD.html" title="constant common_query::native_histogram::RESET_HINT_FIELD">RESET_<wbr>HINT_<wbr>FIELD</a></dt><dt><a class="constant" href="constant.SCHEMA_FIELD.html" title="constant common_query::native_histogram::SCHEMA_FIELD">SCHEMA_<wbr>FIELD</a></dt><dt><a class="constant" href="constant.START_TIMESTAMP_FIELD.html" title="constant common_query::native_histogram::START_TIMESTAMP_FIELD">START_<wbr>TIMESTAMP_<wbr>FIELD</a></dt><dt><a class="constant" href="constant.SUM_FIELD.html" title="constant common_query::native_histogram::SUM_FIELD">SUM_<wbr>FIELD</a></dt><dt><a class="constant" href="constant.ZERO_COUNT_F64_FIELD.html" title="constant common_query::native_histogram::ZERO_COUNT_F64_FIELD">ZERO_<wbr>COUNT_<wbr>F64_<wbr>FIELD</a></dt><dt><a class="constant" href="constant.ZERO_COUNT_U64_FIELD.html" title="constant common_query::native_histogram::ZERO_COUNT_U64_FIELD">ZERO_<wbr>COUNT_<wbr>U64_<wbr>FIELD</a></dt><dt><a class="constant" href="constant.ZERO_THRESHOLD_FIELD.html" title="constant common_query::native_histogram::ZERO_THRESHOLD_FIELD">ZERO_<wbr>THRESHOLD_<wbr>FIELD</a></dt></dl><h2 id="statics" class="section-header">Statics<a href="#statics" class="anchor">§</a></h2><dl class="item-table"><dt><a class="static" href="static.NATIVE_HISTOGRAM_VALUE_TYPE.html" title="static common_query::native_histogram::NATIVE_HISTOGRAM_VALUE_TYPE">NATIVE_<wbr>HISTOGRAM_<wbr>VALUE_<wbr>TYPE</a><span title="Restricted Visibility">&nbsp;🔒</span> </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.is_native_histogram_value_schema.html" title="fn common_query::native_histogram::is_native_histogram_value_schema">is_<wbr>native_<wbr>histogram_<wbr>value_<wbr>schema</a></dt><dt><a class="fn" href="fn.native_histogram_field_type.html" title="fn common_query::native_histogram::native_histogram_field_type">native_<wbr>histogram_<wbr>field_<wbr>type</a></dt><dd>Returns the exact Greptime type for a persisted native histogram field.</dd><dt><a class="fn" href="fn.native_histogram_value_type.html" title="fn common_query::native_histogram::native_histogram_value_type">native_<wbr>histogram_<wbr>value_<wbr>type</a></dt></dl></section></div></main></body></html>