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<!DOCTYPE html>
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<title>IvorySQL :: IvorySQL文档中心</title>
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<article class="doc">
<div class="sect1">
<h2 id="版本概览"><a class="anchor" href="#版本概览"></a>1. 版本概览</h2>
<div class="sectionbody">
<div class="paragraph">
<p>[<strong>发行日期：2025年06月04日</strong>]</p>
</div>
<div class="paragraph">
<p>IvorySQL 4.5，基于PostgreSQL 17.5，并修复了多个问题。有关更新的完整列表，请访问我们的 <a href="https://docs.ivorysql.org/">文档网站</a> 。</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="增强功能及问题修复"><a class="anchor" href="#增强功能及问题修复"></a>2. 增强功能及问题修复</h2>
<div class="sectionbody">
<div class="ulist">
<ul>
<li>
<p>PostgreSQL 17.5</p>
<div class="olist arabic">
<ol class="arabic">
<li>
<p>修复了在检查声明为 GB18030 编码的无效字符串时，可能发生的一字节缓冲区超读（one-byte buffer overread）问题，增强了系统处理无效编码数据的稳健性。</p>
</li>
<li>
<p>确保对分区表上存在的自引用外键（self-referential foreign keys）进行正确处理，提升了复杂数据结构下分区表的可靠性。</p>
</li>
<li>
<p>避免了在 brin_bloom_union() 函数中合并已压缩的 BRIN 摘要（summaries）时，可能发生的数据丢失风险，保障了索引数据的准确性。</p>
</li>
<li>
<p>修正了在嵌套 WITH 子句中的 INSERT/UPDATE/DELETE/MERGE 命令所附带的 WITH 子句内，对外部公共表表达式（CTE）名称引用时的处理逻辑，确保了复杂查询的正确执行。</p>
</li>
<li>
<p>修复了 ALTER TABLE ADD COLUMN 命令，以确保在添加列时，能够正确处理包含默认值的域（domain）类型，提高了表结构变更操作的准确性</p>
</li>
</ol>
</div>
<div class="paragraph">
<p>更多细节, 请参阅 <a href="https://www.postgresql.org/docs/release/17.5/">PostgreSQL发布说明</a>.</p>
</div>
</li>
<li>
<p>IvorySQL 4.5</p>
<div class="olist arabic">
<ol class="arabic">
<li>
<p>MIPS 全平台打包支持：特性 <a href="https://github.com/IvorySQL/IvorySQL/issues/736">#736</a></p>
<div class="paragraph">
<p>为 MIPS 架构提供多平台介质包，支持国内外主流操作系统，包括 Red Hat、Debian、麒麟、UOS、凝思等。</p>
</div>
</li>
<li>
<p>新增IvorySQL 在线体验平台：特性 <a href="https://github.com/IvorySQL/ivorysql-wasm/issues/1">#1</a></p>
<div class="paragraph">
<p>提供一个基于 Web 的平台，用户可直接通过浏览器界面在线体验 IvorySQL V4.5 并进行数据库交互。</p>
</div>
</li>
<li>
<p>新增社区行为准则：特性 <a href="https://github.com/IvorySQL/IvorySQL/issues/808">#808</a></p>
<div class="paragraph">
<p>为社区参与者明确了行为规范和期望，旨在营造一个友好且互相尊重的社区环境。</p>
</div>
</li>
<li>
<p>更新社区贡献指南：特性 <a href="https://github.com/IvorySQL/ivorysql_docs/pull/121">#121</a></p>
<div class="paragraph">
<p>对社区贡献流程、规范和最佳实践进行了修订与完善，方便贡献者参与。</p>
</div>
</li>
<li>
<p>实现文档构建与网站更新自动化：特性 <a href="https://github.com/IvorySQL/ivorysql_docs/issues/115">#115</a></p>
<div class="paragraph">
<p>通过 Pull Request (PR) 自动触发文档构建及官方网站内容更新流程。</p>
</div>
</li>
<li>
<p>改进贡献者工作流程，通过 /assign 命令自我分配任务：特性 <a href="https://github.com/IvorySQL/ivorysql_docs/issues/109">#109</a></p>
</li>
<li>
<p>IvorySQL Operator V4 适配 IvorySQL 4.5：特性 <a href="https://github.com/IvorySQL/ivory-operator/pull/79">#79</a></p>
</li>
</ol>
</div>
</li>
</ul>
</div>
</div>
</div>
<div class="sect1">
<h2 id="源代码"><a class="anchor" href="#源代码"></a>3. 源代码</h2>
<div class="sectionbody">
<div class="paragraph">
<p>IvorySQL主要包含2个代码仓库:</p>
</div>
<div class="ulist">
<ul>
<li>
<p>IvorySQL数据库源码: <a href="https://github.com/IvorySQL/IvorySQL" class="bare">https://github.com/IvorySQL/IvorySQL</a></p>
</li>
<li>
<p>IvorySQL官方网站: <a href="https://github.com/IvorySQL/Ivory-www" class="bare">https://github.com/IvorySQL/Ivory-www</a></p>
</li>
</ul>
</div>
</div>
</div>
<div class="sect1">
<h2 id="贡献人员"><a class="anchor" href="#贡献人员"></a>4. 贡献人员</h2>
<div class="sectionbody">
<div class="paragraph">
<p>以下个人（按姓氏排序）作为补丁作者、提交者、审查者、测试者或问题报告者为此版本做出了贡献。</p>
</div>
<div class="ulist">
<ul>
<li>
<p>Cary Huang</p>
</li>
<li>
<p>Denis Lussier</p>
</li>
<li>
<p>Flyingbeecd</p>
</li>
<li>
<p>Grant Zhou</p>
</li>
<li>
<p>高雪玉</p>
</li>
<li>
<p>矫顺田</p>
</li>
<li>
<p>纪虎林</p>
</li>
<li>
<p>梁翔宇</p>
</li>
<li>
<p>吕新杰</p>
</li>
<li>
<p>牛世继</p>
</li>
<li>
<p>潘振浩</p>
</li>
<li>
<p>石卓妍</p>
</li>
<li>
<p>隋戈</p>
</li>
<li>
<p>陶郑</p>
</li>
<li>
<p>王康</p>
</li>
<li>
<p>王守波</p>
</li>
<li>
<p>杨世华</p>
</li>
<li>
<p>严少安</p>
</li>
<li>
<p>赵法威</p>
</li>
<li>
<p>邹仁利</p>
</li>
</ul>
</div>
</div>
</div>
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