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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 `error` mod in crate `metric_engine`."><title>metric_engine::error - 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="metric_engine" 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 error</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../metric_engine/index.html">metric_<wbr>engine</a><span class="version">1.0.0-beta.4</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module error</a></h2><h3><a href="#structs">Module Items</a></h3><ul class="block"><li><a href="#structs" title="Structs">Structs</a></li><li><a href="#enums" title="Enums">Enums</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 metric_<wbr>engine</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">metric_engine</a></div><h1>Module <span>error</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/metric_engine/error.rs.html#15-428">Source</a> </span></div><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><dl class="item-table"><dt><a class="struct" href="struct.AddingFieldColumnSnafu.html" title="struct metric_engine::error::AddingFieldColumnSnafu">Adding<wbr>Field<wbr>Column<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::AddingFieldColumn</code> variant</dd><dt><a class="struct" href="struct.BatchCatchupMitoRegionSnafu.html" title="struct metric_engine::error::BatchCatchupMitoRegionSnafu">Batch<wbr>Catchup<wbr>Mito<wbr>Region<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::BatchCatchupMitoRegion</code> variant</dd><dt><a class="struct" href="struct.BatchOpenMitoRegionSnafu.html" title="struct metric_engine::error::BatchOpenMitoRegionSnafu">Batch<wbr>Open<wbr>Mito<wbr>Region<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::BatchOpenMitoRegion</code> variant</dd><dt><a class="struct" href="struct.CacheGetSnafu.html" title="struct metric_engine::error::CacheGetSnafu">Cache<wbr>GetSnafu</a></dt><dd>SNAFU context selector for the <code>Error::CacheGet</code> variant</dd><dt><a class="struct" href="struct.CloseMitoRegionSnafu.html" title="struct metric_engine::error::CloseMitoRegionSnafu">Close<wbr>Mito<wbr>Region<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::CloseMitoRegion</code> variant</dd><dt><a class="struct" href="struct.CollectRecordBatchStreamSnafu.html" title="struct metric_engine::error::CollectRecordBatchStreamSnafu">Collect<wbr>Record<wbr>Batch<wbr>Stream<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::CollectRecordBatchStream</code> variant</dd><dt><a class="struct" href="struct.ColumnNotFoundSnafu.html" title="struct metric_engine::error::ColumnNotFoundSnafu">Column<wbr>NotFound<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::ColumnNotFound</code> variant</dd><dt><a class="struct" href="struct.ColumnTypeMismatchSnafu.html" title="struct metric_engine::error::ColumnTypeMismatchSnafu">Column<wbr>Type<wbr>Mismatch<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::ColumnTypeMismatch</code> variant</dd><dt><a class="struct" href="struct.ConflictRegionOptionSnafu.html" title="struct metric_engine::error::ConflictRegionOptionSnafu">Conflict<wbr>Region<wbr>Option<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::ConflictRegionOption</code> variant</dd><dt><a class="struct" href="struct.CreateMitoRegionSnafu.html" title="struct metric_engine::error::CreateMitoRegionSnafu">Create<wbr>Mito<wbr>Region<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::CreateMitoRegion</code> variant</dd><dt><a class="struct" href="struct.DecodeColumnValueSnafu.html" title="struct metric_engine::error::DecodeColumnValueSnafu">Decode<wbr>Column<wbr>Value<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::DecodeColumnValue</code> variant</dd><dt><a class="struct" href="struct.DeserializeColumnMetadataSnafu.html" title="struct metric_engine::error::DeserializeColumnMetadataSnafu">Deserialize<wbr>Column<wbr>Metadata<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::DeserializeColumnMetadata</code> variant</dd><dt><a class="struct" href="struct.EncodePrimaryKeySnafu.html" title="struct metric_engine::error::EncodePrimaryKeySnafu">Encode<wbr>Primary<wbr>KeySnafu</a></dt><dd>SNAFU context selector for the <code>Error::EncodePrimaryKey</code> variant</dd><dt><a class="struct" href="struct.ForbiddenPhysicalAlterSnafu.html" title="struct metric_engine::error::ForbiddenPhysicalAlterSnafu">Forbidden<wbr>Physical<wbr>Alter<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::ForbiddenPhysicalAlter</code> variant</dd><dt><a class="struct" href="struct.InternalColumnOccupiedSnafu.html" title="struct metric_engine::error::InternalColumnOccupiedSnafu">Internal<wbr>Column<wbr>Occupied<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::InternalColumnOccupied</code> variant</dd><dt><a class="struct" href="struct.InvalidMetadataSnafu.html" title="struct metric_engine::error::InvalidMetadataSnafu">Invalid<wbr>Metadata<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::InvalidMetadata</code> variant</dd><dt><a class="struct" href="struct.LogicalRegionNotFoundSnafu.html" title="struct metric_engine::error::LogicalRegionNotFoundSnafu">Logical<wbr>Region<wbr>NotFound<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::LogicalRegionNotFound</code> variant</dd><dt><a class="struct" href="struct.MetricManifestInfoSnafu.html" title="struct metric_engine::error::MetricManifestInfoSnafu">Metric<wbr>Manifest<wbr>Info<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::MetricManifestInfo</code> variant</dd><dt><a class="struct" href="struct.MissingFilesSnafu.html" title="struct metric_engine::error::MissingFilesSnafu">Missing<wbr>Files<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::MissingFiles</code> variant</dd><dt><a class="struct" href="struct.MissingRegionOptionSnafu.html" title="struct metric_engine::error::MissingRegionOptionSnafu">Missing<wbr>Region<wbr>Option<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::MissingRegionOption</code> variant</dd><dt><a class="struct" href="struct.MitoCopyRegionFromOperationSnafu.html" title="struct metric_engine::error::MitoCopyRegionFromOperationSnafu">Mito<wbr>Copy<wbr>Region<wbr>From<wbr>Operation<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::MitoCopyRegionFromOperation</code> variant</dd><dt><a class="struct" href="struct.MitoEditRegionSnafu.html" title="struct metric_engine::error::MitoEditRegionSnafu">Mito<wbr>Edit<wbr>Region<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::MitoEditRegion</code> variant</dd><dt><a class="struct" href="struct.MitoEnterStagingOperationSnafu.html" title="struct metric_engine::error::MitoEnterStagingOperationSnafu">Mito<wbr>Enter<wbr>Staging<wbr>Operation<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::MitoEnterStagingOperation</code> variant</dd><dt><a class="struct" href="struct.MitoFlushOperationSnafu.html" title="struct metric_engine::error::MitoFlushOperationSnafu">Mito<wbr>Flush<wbr>Operation<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::MitoFlushOperation</code> variant</dd><dt><a class="struct" href="struct.MitoReadOperationSnafu.html" title="struct metric_engine::error::MitoReadOperationSnafu">Mito<wbr>Read<wbr>Operation<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::MitoReadOperation</code> variant</dd><dt><a class="struct" href="struct.MitoSyncOperationSnafu.html" title="struct metric_engine::error::MitoSyncOperationSnafu">Mito<wbr>Sync<wbr>Operation<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::MitoSyncOperation</code> variant</dd><dt><a class="struct" href="struct.MitoWriteOperationSnafu.html" title="struct metric_engine::error::MitoWriteOperationSnafu">Mito<wbr>Write<wbr>Operation<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::MitoWriteOperation</code> variant</dd><dt><a class="struct" href="struct.MultipleFieldColumnSnafu.html" title="struct metric_engine::error::MultipleFieldColumnSnafu">Multiple<wbr>Field<wbr>Column<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::MultipleFieldColumn</code> variant</dd><dt><a class="struct" href="struct.NoFieldColumnSnafu.html" title="struct metric_engine::error::NoFieldColumnSnafu">NoField<wbr>Column<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::NoFieldColumn</code> variant</dd><dt><a class="struct" href="struct.NoOpenRegionResultSnafu.html" title="struct metric_engine::error::NoOpenRegionResultSnafu">NoOpen<wbr>Region<wbr>Result<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::NoOpenRegionResult</code> variant</dd><dt><a class="struct" href="struct.OpenMitoRegionSnafu.html" title="struct metric_engine::error::OpenMitoRegionSnafu">Open<wbr>Mito<wbr>Region<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::OpenMitoRegion</code> variant</dd><dt><a class="struct" href="struct.ParseRegionIdSnafu.html" title="struct metric_engine::error::ParseRegionIdSnafu">Parse<wbr>Region<wbr>IdSnafu</a></dt><dd>SNAFU context selector for the <code>Error::ParseRegionId</code> variant</dd><dt><a class="struct" href="struct.ParseRegionOptionsSnafu.html" title="struct metric_engine::error::ParseRegionOptionsSnafu">Parse<wbr>Region<wbr>Options<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::ParseRegionOptions</code> variant</dd><dt><a class="struct" href="struct.PhysicalRegionBusySnafu.html" title="struct metric_engine::error::PhysicalRegionBusySnafu">Physical<wbr>Region<wbr>Busy<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::PhysicalRegionBusy</code> variant</dd><dt><a class="struct" href="struct.PhysicalRegionNotFoundSnafu.html" title="struct metric_engine::error::PhysicalRegionNotFoundSnafu">Physical<wbr>Region<wbr>NotFound<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::PhysicalRegionNotFound</code> variant</dd><dt><a class="struct" href="struct.SerializeColumnMetadataSnafu.html" title="struct metric_engine::error::SerializeColumnMetadataSnafu">Serialize<wbr>Column<wbr>Metadata<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::SerializeColumnMetadata</code> variant</dd><dt><a class="struct" href="struct.SerializeRegionManifestInfoSnafu.html" title="struct metric_engine::error::SerializeRegionManifestInfoSnafu">Serialize<wbr>Region<wbr>Manifest<wbr>Info<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::SerializeRegionManifestInfo</code> variant</dd><dt><a class="struct" href="struct.SetSkippingIndexOptionSnafu.html" title="struct metric_engine::error::SetSkippingIndexOptionSnafu">SetSkipping<wbr>Index<wbr>Option<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::SetSkippingIndexOption</code> variant</dd><dt><a class="struct" href="struct.StartRepeatedTaskSnafu.html" title="struct metric_engine::error::StartRepeatedTaskSnafu">Start<wbr>Repeated<wbr>Task<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::StartRepeatedTask</code> variant</dd><dt><a class="struct" href="struct.UnexpectedRequestSnafu.html" title="struct metric_engine::error::UnexpectedRequestSnafu">Unexpected<wbr>Request<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::UnexpectedRequest</code> variant</dd><dt><a class="struct" href="struct.UnsupportedAlterKindSnafu.html" title="struct metric_engine::error::UnsupportedAlterKindSnafu">Unsupported<wbr>Alter<wbr>Kind<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::UnsupportedAlterKind</code> variant</dd><dt><a class="struct" href="struct.UnsupportedRegionRequestSnafu.html" title="struct metric_engine::error::UnsupportedRegionRequestSnafu">Unsupported<wbr>Region<wbr>Request<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::UnsupportedRegionRequest</code> variant</dd><dt><a class="struct" href="struct.UnsupportedRemapManifestsRequestSnafu.html" title="struct metric_engine::error::UnsupportedRemapManifestsRequestSnafu">Unsupported<wbr>Remap<wbr>Manifests<wbr>Request<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::UnsupportedRemapManifestsRequest</code> variant</dd><dt><a class="struct" href="struct.UnsupportedSyncRegionFromRequestSnafu.html" title="struct metric_engine::error::UnsupportedSyncRegionFromRequestSnafu">Unsupported<wbr>Sync<wbr>Region<wbr>From<wbr>Request<wbr>Snafu</a></dt><dd>SNAFU context selector for the <code>Error::UnsupportedSyncRegionFromRequest</code> variant</dd></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.Error.html" title="enum metric_engine::error::Error">Error</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.Result.html" title="type metric_engine::error::Result">Result</a></dt></dl></section></div></main></body></html>