{"id":41585,"date":"2022-12-04T22:51:06","date_gmt":"2023-12-30T10:17:19","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e6%83%b3%e6%9f%a5%e8%af%a2postgresql%e7%9a%84%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e3%80%82\/"},"modified":"2024-04-29T03:45:35","modified_gmt":"2024-04-28T19:45:35","slug":"%e6%88%91%e6%83%b3%e6%9f%a5%e8%af%a2postgresql%e7%9a%84%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e6%83%b3%e6%9f%a5%e8%af%a2postgresql%e7%9a%84%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e3%80%82\/","title":{"rendered":"\u6211\u60f3\u67e5\u8be2Postgresql\u7684\u6570\u636e\u7c7b\u578b"},"content":{"rendered":"<p>pg_typeof\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n<pre class=\"post-pre\"><code>pg_typeof(any)\r\n\u6307\u5b9a\u3057\u305f\u5024\u306e\u30c7\u30fc\u30bf\u578b\u3092\u53d6\u5f97\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"k\">select<\/span> <span class=\"n\">pg_typeof<\/span><span class=\"p\">(<\/span><span class=\"s1\">'32767'<\/span><span class=\"p\">::<\/span><span class=\"nb\">smallint<\/span> <span class=\"o\">+<\/span> <span class=\"mi\">2<\/span><span class=\"p\">);<\/span> <span class=\"o\">-&gt;<\/span> <span class=\"nb\">integer<\/span>\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>pg_typeof\u975e\u5e38\u65b9\u4fbf\u3002 pg_typeof(any) \u6307\u5b9a\u3057\u305f\u5024\u306e\u30c7\u30fc\u30bf\u578b\u3092\u53d6\u5f97 select pg_t [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-41585","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u6211\u60f3\u67e5\u8be2Postgresql\u7684\u6570\u636e\u7c7b\u578b - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u6211\u60f3\u67e5\u8be2postgresql\u7684\u6570\u636e\u7c7b\u578b\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u6211\u60f3\u67e5\u8be2Postgresql\u7684\u6570\u636e\u7c7b\u578b\" \/>\n<meta property=\"og:description\" content=\"pg_typeof\u975e\u5e38\u65b9\u4fbf\u3002 pg_typeof(any) \u6307\u5b9a\u3057\u305f\u5024\u306e\u30c7\u30fc\u30bf\u578b\u3092\u53d6\u5f97 select pg_t [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u6211\u60f3\u67e5\u8be2postgresql\u7684\u6570\u636e\u7c7b\u578b\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-12-30T10:17:19+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-28T19:45:35+00:00\" \/>\n<meta name=\"author\" content=\"\u6e05, \u626c\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6e05, \u626c\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e6%83%b3%e6%9f%a5%e8%af%a2postgresql%e7%9a%84%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e3%80%82\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e6%83%b3%e6%9f%a5%e8%af%a2postgresql%e7%9a%84%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e3%80%82\/\",\"name\":\"\u6211\u60f3\u67e5\u8be2Postgresql\u7684\u6570\u636e\u7c7b\u578b - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2023-12-30T10:17:19+00:00\",\"dateModified\":\"2024-04-28T19:45:35+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/cb5556d2501da73d864cac945e8d9461\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e6%83%b3%e6%9f%a5%e8%af%a2postgresql%e7%9a%84%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e3%80%82\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e6%83%b3%e6%9f%a5%e8%af%a2postgresql%e7%9a%84%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e3%80%82\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e6%83%b3%e6%9f%a5%e8%af%a2postgresql%e7%9a%84%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e3%80%82\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/zh\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u6211\u60f3\u67e5\u8be2Postgresql\u7684\u6570\u636e\u7c7b\u578b\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - Silicon Cloud\",\"description\":\"\",\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/cb5556d2501da73d864cac945e8d9461\",\"name\":\"\u6e05, \u626c\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/32a4239de8ff29adace466261d309424a1e5fe9f7e3036bf89fe03f2e3dbe717?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/32a4239de8ff29adace466261d309424a1e5fe9f7e3036bf89fe03f2e3dbe717?s=96&d=mm&r=g\",\"caption\":\"\u6e05, \u626c\"},\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/author\/qingyang\/\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e6%83%b3%e6%9f%a5%e8%af%a2postgresql%e7%9a%84%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e3%80%82\/#local-main-organization-logo\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Blog - Silicon Cloud\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"\u6211\u60f3\u67e5\u8be2Postgresql\u7684\u6570\u636e\u7c7b\u578b - Blog - Silicon Cloud","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/zh\/blog\/\u6211\u60f3\u67e5\u8be2postgresql\u7684\u6570\u636e\u7c7b\u578b\u3002\/","og_locale":"zh_CN","og_type":"article","og_title":"\u6211\u60f3\u67e5\u8be2Postgresql\u7684\u6570\u636e\u7c7b\u578b","og_description":"pg_typeof\u975e\u5e38\u65b9\u4fbf\u3002 pg_typeof(any) \u6307\u5b9a\u3057\u305f\u5024\u306e\u30c7\u30fc\u30bf\u578b\u3092\u53d6\u5f97 select pg_t [&hellip;]","og_url":"https:\/\/www.silicloud.com\/zh\/blog\/\u6211\u60f3\u67e5\u8be2postgresql\u7684\u6570\u636e\u7c7b\u578b\u3002\/","og_site_name":"Blog - Silicon Cloud","article_published_time":"2023-12-30T10:17:19+00:00","article_modified_time":"2024-04-28T19:45:35+00:00","author":"\u6e05, \u626c","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"\u6e05, \u626c"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e6%83%b3%e6%9f%a5%e8%af%a2postgresql%e7%9a%84%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e3%80%82\/","url":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e6%83%b3%e6%9f%a5%e8%af%a2postgresql%e7%9a%84%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e3%80%82\/","name":"\u6211\u60f3\u67e5\u8be2Postgresql\u7684\u6570\u636e\u7c7b\u578b - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website"},"datePublished":"2023-12-30T10:17:19+00:00","dateModified":"2024-04-28T19:45:35+00:00","author":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/cb5556d2501da73d864cac945e8d9461"},"breadcrumb":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e6%83%b3%e6%9f%a5%e8%af%a2postgresql%e7%9a%84%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e3%80%82\/#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e6%83%b3%e6%9f%a5%e8%af%a2postgresql%e7%9a%84%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e3%80%82\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e6%83%b3%e6%9f%a5%e8%af%a2postgresql%e7%9a%84%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e3%80%82\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.silicloud.com\/zh\/blog\/"},{"@type":"ListItem","position":2,"name":"\u6211\u60f3\u67e5\u8be2Postgresql\u7684\u6570\u636e\u7c7b\u578b"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website","url":"https:\/\/www.silicloud.com\/zh\/blog\/","name":"Blog - Silicon Cloud","description":"","inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/cb5556d2501da73d864cac945e8d9461","name":"\u6e05, \u626c","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/32a4239de8ff29adace466261d309424a1e5fe9f7e3036bf89fe03f2e3dbe717?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/32a4239de8ff29adace466261d309424a1e5fe9f7e3036bf89fe03f2e3dbe717?s=96&d=mm&r=g","caption":"\u6e05, \u626c"},"url":"https:\/\/www.silicloud.com\/zh\/blog\/author\/qingyang\/"},{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e6%83%b3%e6%9f%a5%e8%af%a2postgresql%e7%9a%84%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e3%80%82\/#local-main-organization-logo","url":"","contentUrl":"","caption":"Blog - Silicon Cloud"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/41585","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/comments?post=41585"}],"version-history":[{"count":2,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/41585\/revisions"}],"predecessor-version":[{"id":79391,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/41585\/revisions\/79391"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/media?parent=41585"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/categories?post=41585"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/tags?post=41585"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}