{"id":41394,"date":"2023-08-12T04:59:24","date_gmt":"2022-10-30T14:52:17","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90postgresql%e3%80%91%e5%85%b3%e4%ba%8e%e7%b1%bb%e5%9e%8b%e8%bd%ac%e6%8d%a2%e7%9a%84%e9%97%ae%e9%a2%98\/"},"modified":"2024-01-15T10:56:43","modified_gmt":"2024-01-15T02:56:43","slug":"%e3%80%90postgresql%e3%80%91%e5%85%b3%e4%ba%8e%e7%b1%bb%e5%9e%8b%e8%bd%ac%e6%8d%a2%e7%9a%84%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90postgresql%e3%80%91%e5%85%b3%e4%ba%8e%e7%b1%bb%e5%9e%8b%e8%bd%ac%e6%8d%a2%e7%9a%84%e9%97%ae%e9%a2%98\/","title":{"rendered":"\u3010PostgreSQL\u3011\u5173\u4e8e\u7c7b\u578b\u8f6c\u6362\u7684\u95ee\u9898"},"content":{"rendered":"<h2>\u8bf7\u63d0\u4f9b\u6f14\u5458\u9009\u62e9\u65b9\u6cd5\u3002<\/h2>\n<h3>\u5c06CHAR\u7c7b\u578b\u8fdb\u884c\u5f3a\u5236\u8f6c\u6362\u4e3a\u5b57\u7b26\u578b\u3002<\/h3>\n<pre class=\"post-pre\"><code><span class=\"k\">CAST<\/span><span class=\"p\">(<\/span><span class=\"n\">column1<\/span> <span class=\"k\">as<\/span> <span class=\"nb\">CHAR<\/span><span class=\"p\">)<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u203b\u5047\u8bbecolumn1\u662f\u4e00\u4e2a\u5408\u9002\u7684\u5217<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8bf7\u63d0\u4f9b\u6f14\u5458\u9009\u62e9\u65b9\u6cd5\u3002 \u5c06CHAR\u7c7b\u578b\u8fdb\u884c\u5f3a\u5236\u8f6c\u6362\u4e3a\u5b57\u7b26\u578b\u3002 CAST(column1 as CHAR) \u203b\u5047\u8bbe [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-41394","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) - 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