{"id":178762,"date":"2024-11-08T20:41:20","date_gmt":"2024-11-08T12:41:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178762\/"},"modified":"2024-11-08T20:41:21","modified_gmt":"2024-11-08T12:41:21","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9postgresql%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a2202h-invalid_tablesample_argument%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178762\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a2202H &#8211; invalid_tablesample_argument\uff1f"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9postgresql%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a2202h-invalid_tablesample_argument-PgCYmHspSZ\">\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a2202H &#8211; invalid_tablesample_argument<\/h1>\n<p>\u5728\u4f7f\u7528PostgreSQL\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u662f2202H\uff0c\u8a72\u932f\u8aa4\u901a\u5e38\u8868\u793a\u7121\u6548\u7684\u8868\u6a23\u672c\u53c3\u6578\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u6df1\u5165\u63a2\u8a0e\u6b64\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u7528\u6236\u6709\u6548\u5730\u4fee\u5fa9\u554f\u984c\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc2202h%e7%9a%84%e8%83%8c%e6%99%af-PgCYmHspSZ\">\u932f\u8aa4\u4ee3\u78bc2202H\u7684\u80cc\u666f<\/h2>\n<p>PostgreSQL\u662f\u4e00\u500b\u5f37\u5927\u7684\u958b\u6e90\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u7576\u7528\u6236\u5728\u57f7\u884c\u8868\u6a23\u672c\u67e5\u8a62\u6642\uff0c\u53ef\u80fd\u6703\u9047\u52302202H\u932f\u8aa4\u3002\u9019\u901a\u5e38\u662f\u56e0\u70ba\u63d0\u4f9b\u7684\u8868\u6a23\u672c\u53c3\u6578\u4e0d\u6b63\u78ba\u6216\u4e0d\u7b26\u5408\u8981\u6c42\u3002<\/p>\n<h2 id=\"%e5%b8%b8%e8%a6%8b%e5%8e%9f%e5%9b%a0-PgCYmHspSZ\">\u5e38\u898b\u539f\u56e0<\/h2>\n<ul>\n<li><strong>\u4e0d\u6b63\u78ba\u7684\u53c3\u6578\u985e\u578b\uff1a<\/strong>\u8868\u6a23\u672c\u67e5\u8a62\u9700\u8981\u7279\u5b9a\u985e\u578b\u7684\u53c3\u6578\uff0c\u4f8b\u5982\u6578\u5b57\u6216\u5b57\u7b26\u4e32\u3002\u5982\u679c\u63d0\u4f9b\u7684\u53c3\u6578\u985e\u578b\u4e0d\u6b63\u78ba\uff0c\u5247\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u4e0d\u652f\u6301\u7684\u8868\u6a23\u672c\u65b9\u6cd5\uff1a<\/strong>PostgreSQL\u652f\u6301\u591a\u7a2e\u8868\u6a23\u672c\u65b9\u6cd5\uff0c\u5982BERNOULLI\u548cSYSTEM\u3002\u4f7f\u7528\u4e0d\u652f\u6301\u7684\u65b9\u6cd5\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u8a9e\u6cd5\u932f\u8aa4\uff1a<\/strong>\u5728SQL\u67e5\u8a62\u4e2d\uff0c\u8a9e\u6cd5\u932f\u8aa4\u4e5f\u53ef\u80fd\u5c0e\u81f42202H\u932f\u8aa4\u7684\u51fa\u73fe\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a92202h%e9%8c%af%e8%aa%a4-PgCYmHspSZ\">\u5982\u4f55\u4fee\u5fa92202H\u932f\u8aa4<\/h2>\n<p>\u4fee\u5fa9\u6b64\u932f\u8aa4\u7684\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e5%8f%83%e6%95%b8%e9%a1%9e%e5%9e%8b-PgCYmHspSZ\">1. \u6aa2\u67e5\u53c3\u6578\u985e\u578b<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u60a8\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u7684\u8868\u6a23\u672c\u53c3\u6578\u3002\u78ba\u4fdd\u5b83\u5011\u7684\u985e\u578b\u8207PostgreSQL\u7684\u8981\u6c42\u76f8\u7b26\u3002\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662fBERNOULLI\u65b9\u6cd5\uff0c\u5247\u9700\u8981\u63d0\u4f9b\u4e00\u500b\u4ecb\u65bc0\u5230100\u4e4b\u9593\u7684\u6578\u5b57\u4f5c\u70ba\u53c3\u6578\uff1a<\/p>\n<pre><code>SELECT * FROM your_table TABLESAMPLE BERNOULLI(50);<\/code><\/pre>\n<h3 id=\"2-%e7%a2%ba%e8%aa%8d%e8%a1%a8%e6%a8%a3%e6%9c%ac%e6%96%b9%e6%b3%95%e7%9a%84%e6%9c%89%e6%95%88%e6%80%a7-PgCYmHspSZ\">2. \u78ba\u8a8d\u8868\u6a23\u672c\u65b9\u6cd5\u7684\u6709\u6548\u6027<\/h3>\n<p>\u78ba\u4fdd\u60a8\u4f7f\u7528\u7684\u8868\u6a23\u672c\u65b9\u6cd5\u662fPostgreSQL\u6240\u652f\u6301\u7684\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u8868\u6a23\u672c\u65b9\u6cd5\uff1a<\/p>\n<ul>\n<li><strong>BERNOULLI(n):<\/strong> \u96a8\u6a5f\u9078\u64c7n%\u7684\u884c\u3002<\/li>\n<li><strong>SYSTEM(n):<\/strong> \u6839\u64da\u9801\u9762\u96a8\u6a5f\u9078\u64c7n%\u7684\u884c\u3002<\/li>\n<\/ul>\n<p>\u5982\u679c\u60a8\u4f7f\u7528\u4e86\u4e0d\u652f\u6301\u7684\u65b9\u6cd5\uff0c\u8acb\u66f4\u6539\u70ba\u6709\u6548\u7684\u65b9\u6cd5\u3002<\/p>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5sql%e8%aa%9e%e6%b3%95-PgCYmHspSZ\">3. \u6aa2\u67e5SQL\u8a9e\u6cd5<\/h3>\n<p>\u6700\u5f8c\uff0c\u6aa2\u67e5\u60a8\u7684SQL\u67e5\u8a62\u8a9e\u6cd5\u662f\u5426\u6b63\u78ba\u3002\u78ba\u4fdd\u6240\u6709\u7684\u95dc\u9375\u5b57\u548c\u53c3\u6578\u90fd\u6b63\u78ba\u7121\u8aa4\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u67e5\u8a62\u662f\u6b63\u78ba\u7684\uff1a<\/p>\n<pre><code>SELECT * FROM your_table TABLESAMPLE SYSTEM(10);<\/code><\/pre>\n<p>\u800c\u4ee5\u4e0b\u67e5\u8a62\u5247\u6703\u5c0e\u81f4\u932f\u8aa4\uff1a<\/p>\n<pre><code>SELECT * FROM your_table TABLESAMPLE INVALID_METHOD(10);<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-PgCYmHspSZ\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL\u932f\u8aa4\u4ee3\u78bc2202H &#8211; invalid_tablesample_argument\u901a\u5e38\u662f\u7531\u65bc\u4e0d\u6b63\u78ba\u7684\u8868\u6a23\u672c\u53c3\u6578\u6216\u4e0d\u652f\u6301\u7684\u8868\u6a23\u672c\u65b9\u6cd5\u5f15\u8d77\u7684\u3002\u901a\u904e\u6aa2\u67e5\u53c3\u6578\u985e\u578b\u3001\u78ba\u8a8d\u8868\u6a23\u672c\u65b9\u6cd5\u7684\u6709\u6548\u6027\u4ee5\u53ca\u6aa2\u67e5SQL\u8a9e\u6cd5\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u4ee5\u78ba\u4fdd\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u904b\u884c\u9806\u5229\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc2202H\u7684\u6307\u5357\uff0c\u89e3\u6c7ainvalid_tablesample_argument\u554f\u984c\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u8207\u7a69\u5b9a\u6027\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-178762","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178762","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=178762"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178762\/revisions"}],"predecessor-version":[{"id":178763,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178762\/revisions\/178763"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178762"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178762"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178762"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}