{"id":179062,"date":"2024-11-08T22:41:20","date_gmt":"2024-11-08T14:41:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179062\/"},"modified":"2024-11-08T22:41:21","modified_gmt":"2024-11-08T14:41:21","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9-postgresql-%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a42p22-indeterminate_collation%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179062\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42P22 &#8211; indeterminate_collation\uff1f"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9-postgresql-%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a42p22-indeterminate_collation-lgmOiIEBEN\">\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42P22 &#8211; indeterminate_collation<\/h1>\n<p>\u5728\u4f7f\u7528 PostgreSQL \u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa4\u4ee3\u78bc 42P22\uff0c\u8a72\u932f\u8aa4\u901a\u5e38\u8207\u4e0d\u78ba\u5b9a\u7684\u6392\u5e8f\u898f\u5247\uff08indeterminate collation\uff09\u6709\u95dc\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u6210\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u6709\u6548\u5730\u7ba1\u7406\u548c\u7dad\u8b77\u4ed6\u5011\u7684\u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc-42p22-%e7%9a%84%e8%83%8c%e6%99%af-lgmOiIEBEN\">\u932f\u8aa4\u4ee3\u78bc 42P22 \u7684\u80cc\u666f<\/h2>\n<p>PostgreSQL \u662f\u4e00\u500b\u529f\u80fd\u5f37\u5927\u7684\u958b\u6e90\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u985e\u578b\u548c\u6392\u5e8f\u898f\u5247\u3002\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u7576\u67e5\u8a62\u4e2d\u6d89\u53ca\u5230\u5b57\u7b26\u4e32\u6bd4\u8f03\u6216\u6392\u5e8f\u6642\uff0c\u82e5\u672a\u660e\u78ba\u6307\u5b9a\u6392\u5e8f\u898f\u5247\uff0cPostgreSQL \u53ef\u80fd\u6703\u5831\u544a\u932f\u8aa4 42P22\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u4e86\u4e0d\u660e\u78ba\u7684\u5b57\u7b26\u96c6\u6216\u6392\u5e8f\u898f\u5247\u3002<\/li>\n<li>\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u4e86\u4e0d\u540c\u7684\u6392\u5e8f\u898f\u5247\uff0c\u5c0e\u81f4 PostgreSQL \u7121\u6cd5\u78ba\u5b9a\u61c9\u4f7f\u7528\u54ea\u4e00\u500b\u3002<\/li>\n<li>\u5728\u5275\u5efa\u8868\u6216\u5217\u6642\u672a\u6307\u5b9a\u6392\u5e8f\u898f\u5247\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a4-42p22-lgmOiIEBEN\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa4 42P22<\/h2>\n<p>\u4fee\u5fa9\u6b64\u932f\u8aa4\u7684\u95dc\u9375\u5728\u65bc\u660e\u78ba\u6307\u5b9a\u6392\u5e8f\u898f\u5247\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e6%8c%87%e5%ae%9a%e6%8e%92%e5%ba%8f%e8%a6%8f%e5%89%87-lgmOiIEBEN\">1. \u6307\u5b9a\u6392\u5e8f\u898f\u5247<\/h3>\n<p>\u5728\u67e5\u8a62\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>COLLATE<\/code> \u95dc\u9375\u5b57\u4f86\u660e\u78ba\u6307\u5b9a\u6392\u5e8f\u898f\u5247\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT * FROM your_table WHERE your_column = 'some_value' COLLATE \"your_collation\";<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u544a\u8a34 PostgreSQL \u4f7f\u7528\u7279\u5b9a\u7684\u6392\u5e8f\u898f\u5247\u4f86\u9032\u884c\u6bd4\u8f03\u3002<\/p>\n<h3 id=\"2-%e5%9c%a8%e8%a1%a8%e6%88%96%e5%88%97%e4%b8%ad%e6%8c%87%e5%ae%9a%e6%8e%92%e5%ba%8f%e8%a6%8f%e5%89%87-lgmOiIEBEN\">2. \u5728\u8868\u6216\u5217\u4e2d\u6307\u5b9a\u6392\u5e8f\u898f\u5247<\/h3>\n<p>\u5728\u5275\u5efa\u8868\u6642\uff0c\u53ef\u4ee5\u5728\u5217\u5b9a\u7fa9\u4e2d\u6307\u5b9a\u6392\u5e8f\u898f\u5247\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>CREATE TABLE your_table (\n    your_column TEXT COLLATE \"your_collation\"\n);<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5728\u8a72\u5217\u4e2d\u6240\u6709\u7684\u5b57\u7b26\u4e32\u64cd\u4f5c\u90fd\u4f7f\u7528\u6307\u5b9a\u7684\u6392\u5e8f\u898f\u5247\u3002<\/p>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e9%bb%98%e8%aa%8d%e6%8e%92%e5%ba%8f%e8%a6%8f%e5%89%87-lgmOiIEBEN\">3. \u6aa2\u67e5\u6578\u64da\u5eab\u7684\u9ed8\u8a8d\u6392\u5e8f\u898f\u5247<\/h3>\n<p>\u5982\u679c\u5728\u6578\u64da\u5eab\u5c64\u7d1a\u4e0a\u672a\u6b63\u78ba\u8a2d\u7f6e\u9ed8\u8a8d\u6392\u5e8f\u898f\u5247\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u6aa2\u67e5\u7576\u524d\u6578\u64da\u5eab\u7684\u9ed8\u8a8d\u6392\u5e8f\u898f\u5247\uff1a<\/p>\n<pre><code>SELECT datcollate FROM pg_database WHERE datname = 'your_database_name';<\/code><\/pre>\n<p>\u5982\u679c\u9700\u8981\u66f4\u6539\u9ed8\u8a8d\u6392\u5e8f\u898f\u5247\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>ALTER DATABASE your_database_name SET lc_collate TO 'your_collation';<\/code><\/pre>\n<h2 id=\"%e7%a4%ba%e4%be%8b-lgmOiIEBEN\">\u793a\u4f8b<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>employees<\/code> \u7684\u8868\uff0c\u4e26\u4e14\u6211\u5011\u5e0c\u671b\u67e5\u8a62\u6240\u6709\u540d\u5b57\u70ba &#8220;John&#8221; \u7684\u54e1\u5de5\uff0c\u4f46\u5728\u67e5\u8a62\u4e2d\u672a\u6307\u5b9a\u6392\u5e8f\u898f\u5247\uff0c\u9019\u53ef\u80fd\u6703\u5c0e\u81f4\u932f\u8aa4 42P22\u3002\u4ee5\u4e0b\u662f\u4fee\u5fa9\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM employees WHERE name = 'John' COLLATE \"en_US\";<\/code><\/pre>\n<p>\u901a\u904e\u660e\u78ba\u6307\u5b9a\u6392\u5e8f\u898f\u5247\uff0c\u6211\u5011\u53ef\u4ee5\u907f\u514d\u6b64\u932f\u8aa4\u7684\u767c\u751f\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-lgmOiIEBEN\">\u7e3d\u7d50<\/h2>\n<p>\u932f\u8aa4\u4ee3\u78bc 42P22 &#8211; indeterminate_collation \u662f PostgreSQL \u4e2d\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u901a\u5e38\u7531\u65bc\u672a\u660e\u78ba\u6307\u5b9a\u6392\u5e8f\u898f\u5247\u800c\u5f15\u8d77\u3002\u901a\u904e\u5728\u67e5\u8a62\u3001\u8868\u6216\u5217\u4e2d\u660e\u78ba\u6307\u5b9a\u6392\u5e8f\u898f\u5247\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u4e86\u89e3\u5982\u4f55\u7ba1\u7406\u548c\u8a2d\u7f6e\u6392\u5e8f\u898f\u5247\u5c0d\u65bc\u7dad\u8b77\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u60a8\u7684\u6578\u64da\u5eab\u548c\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc 42P22 &#8211; indeterminate_collation \u7684\u65b9\u6cd5\uff0c\u5e6b\u52a9\u60a8\u89e3\u6c7a\u8cc7\u6599\u5eab\u4e2d\u7684\u6392\u5e8f\u548c\u6bd4\u8f03\u554f\u984c\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-179062","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179062","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=179062"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179062\/revisions"}],"predecessor-version":[{"id":179063,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179062\/revisions\/179063"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179062"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179062"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179062"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}