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"POSTGRES", "opcfamily": "gin/tsvector_ops", "opcintype": "tsvector", "opcmethod": "gin", "opcdefault": "t", "opckeytype": "text", "opcnamespace": "pg_catalog"}], "description_zh_html": "<p>全文检索文档</p><h3>同版本中文手册节选</h3><p>\n<span>PostgreSQL</span> 提供了两种专为支持全文检索而设计的数据类型。所谓全文检索，是指在一组自然语言<em>文档</em>中查找最匹配某个<em>查询</em>的文档。<code>tsvector</code> 类型以适合文本检索的优化形式表示文档，<code>tsquery</code> 类型则表示文本查询。关于这一功能的详细解释见<a href=\"/zh/docs/18/textsearch.html\" rel=\"nofollow\">第 12 章</a>；相关函数和操作符的概览见<a href=\"/zh/docs/18/functions-textsearch.html\" rel=\"nofollow\">第 9.13 节</a>。\n   </p><p><a href=\"/zh/docs/18/datatype-textsearch.html\" rel=\"nofollow\">查看完整中文手册与上下文</a>。</p>", "manual_documentation": "dedicated family chapter", "center_zh_rendered": "<p>全文检索文档</p><h3>同版本中文手册节选</h3><p>\n<span>PostgreSQL</span> 提供了两种专为支持全文检索而设计的数据类型。所谓全文检索，是指在一组自然语言<em>文档</em>中查找最匹配某个<em>查询</em>的文档。<code>tsvector</code> 类型以适合文本检索的优化形式表示文档，<code>tsquery</code> 类型则表示文本查询。关于这一功能的详细解释见<a href=\"/docs/18/textsearch.html\">第 12 章</a>；相关函数和操作符的概览见<a href=\"/docs/18/functions-textsearch.html\">第 9.13 节</a>。\n   </p><p><a href=\"/docs/18/datatype-textsearch.html\">查看完整中文手册与上下文</a>。</p>"}, "from": "17", "comparison": {"available": true, "changes": [], "prose_changed": false}}