\u5728\u4f7f\u7528 PostgreSQL \u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u548c\u554f\u984c\u3002\u5176\u4e2d\u4e00\u500b\u5e38\u898b\u7684\u932f\u8aa4\u662f \u7576\u4f60\u5728 PostgreSQL \u4e2d\u4f7f\u7528\u8868\u6a23\u672c\u529f\u80fd\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230 \u8981\u4fee\u5fa9 \u78ba\u4fdd SQL \u8a9e\u53e5\u7684\u683c\u5f0f\u6b63\u78ba\uff0c\u4e26\u4e14\u4f7f\u7528\u4e86\u6b63\u78ba\u7684\u6a23\u672c\u65b9\u6cd5\u548c\u53c3\u6578\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 \u6aa2\u67e5\u4f60\u4f7f\u7528\u7684 PostgreSQL \u7248\u672c\uff0c\u78ba\u4fdd\u5b83\u652f\u6301\u4f60\u6240\u4f7f\u7528\u7684\u6a23\u672c\u65b9\u6cd5\u548c\u53c3\u6578\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b\u7248\u672c\uff1a<\/p>\n \u5982\u679c\u767c\u73fe\u7248\u672c\u4e0d\u652f\u6301\u6240\u9700\u7684\u529f\u80fd\uff0c\u8003\u616e\u5347\u7d1a\u5230\u6700\u65b0\u7248\u672c\u3002\u9019\u4e0d\u50c5\u53ef\u4ee5\u89e3\u6c7a\u7576\u524d\u7684\u554f\u984c\uff0c\u9084\u80fd\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u5b89\u5168\u6027\u3002<\/p>\n \u5982\u679c\u554f\u984c\u4ecd\u7136\u5b58\u5728\uff0c\u5617\u8a66\u4f7f\u7528\u4e0d\u540c\u7684\u6a23\u672c\u65b9\u6cd5\u3002\u4f8b\u5982\uff0c\u5c07 \u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u9032\u884c\u9060\u7a0b\u8655\u7406\u4f86\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5efa\u8b70\uff1a<\/p>\n \u5728\u4f7f\u7528 PostgreSQL \u6642\uff0c \u89e3\u6c7a PostgreSQL 2202H: invalid_tablesample_argument \u932f\u8aa4\u7684\u6545\u969c\u4fee\u5fa9\u65b9\u6cd5\uff0c\u63d0\u4f9b\u9060\u7a0b\u8655\u7406\u6307\u5c0e\uff0c\u52a9\u60a8\u5feb\u901f\u6062\u5fa9\u7cfb\u7d71\u904b\u884c\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-96762","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96762","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=96762"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96762\/revisions"}],"predecessor-version":[{"id":96763,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96762\/revisions\/96763"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=96762"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=96762"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=96762"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}invalid_tablesample_argument<\/code>\uff0c\u9019\u901a\u5e38\u8207\u8868\u6a23\u672c\u7684\u4f7f\u7528\u6709\u95dc\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u3001\u89e3\u6c7a\u65b9\u6848\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u9060\u7a0b\u8655\u7406\u3002<\/p>\n\u932f\u8aa4\u539f\u56e0\u5206\u6790<\/h2>\n
invalid_tablesample_argument<\/code> \u932f\u8aa4\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u662f\u7531\u65bc\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\u9020\u6210\u7684\uff1a<\/p>\n\n
TABLESAMPLE<\/code> \u8a9e\u53e5\u6642\uff0c\u63d0\u4f9b\u7684\u53c3\u6578\u683c\u5f0f\u4e0d\u6b63\u78ba\uff0c\u5c0e\u81f4 PostgreSQL \u7121\u6cd5\u89e3\u6790\u3002<\/li>\nBERNOULLI<\/code> \u548c SYSTEM<\/code>\u3002\u5982\u679c\u4f7f\u7528\u4e86\u4e0d\u652f\u6301\u7684\u65b9\u6cd5\uff0c\u5247\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002<\/li>\n\u6545\u969c\u4fee\u5fa9\u6b65\u9a5f<\/h2>\n
invalid_tablesample_argument<\/code> \u932f\u8aa4\uff0c\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u9032\u884c\uff1a<\/p>\n1. \u6aa2\u67e5 SQL \u8a9e\u53e5<\/h3>\n
SELECT * FROM your_table TABLESAMPLE SYSTEM (10);<\/code><\/pre>\nSYSTEM<\/code> \u65b9\u6cd5\u6642\uff0c\u53c3\u6578\u61c9\u8a72\u662f\u4e00\u500b\u4ecb\u65bc 0 \u5230 100 \u4e4b\u9593\u7684\u6574\u6578\uff0c\u8868\u793a\u6a23\u672c\u7684\u767e\u5206\u6bd4\u3002<\/p>\n2. \u78ba\u8a8d PostgreSQL \u7248\u672c<\/h3>\n
SELECT version();<\/code><\/pre>\n3. \u66f4\u65b0 PostgreSQL<\/h3>\n
4. \u6e2c\u8a66\u4e0d\u540c\u7684\u6a23\u672c\u65b9\u6cd5<\/h3>\n
SYSTEM<\/code> \u65b9\u6cd5\u66ff\u63db\u70ba BERNOULLI<\/code> \u65b9\u6cd5\uff0c\u770b\u770b\u662f\u5426\u80fd\u89e3\u6c7a\u554f\u984c\uff1a<\/p>\nSELECT * FROM your_table TABLESAMPLE BERNOULLI (10);<\/code><\/pre>\n\u9060\u7a0b\u8655\u7406\u5efa\u8b70<\/h2>\n
\n
\/var\/log\/postgresql\/<\/code> \u76ee\u9304\u4e0b\u3002<\/li>\n\u7e3d\u7d50<\/h2>\n
invalid_tablesample_argument<\/code> \u932f\u8aa4\u53ef\u80fd\u6703\u5f71\u97ff\u6578\u64da\u67e5\u8a62\u7684\u6548\u7387\u3002\u901a\u904e\u6aa2\u67e5 SQL \u8a9e\u53e5\u3001\u78ba\u8a8d\u7248\u672c\u3001\u66f4\u65b0 PostgreSQL \u548c\u6e2c\u8a66\u4e0d\u540c\u7684\u6a23\u672c\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u6b64\u5916\uff0c\u9060\u7a0b\u8655\u7406\u5efa\u8b70\u80fd\u5e6b\u52a9\u7cfb\u7d71\u7ba1\u7406\u54e1\u66f4\u9ad8\u6548\u5730\u7ba1\u7406\u548c\u7dad\u8b77\u6578\u64da\u5eab\u7cfb\u7d71\u3002\u82e5\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u4f7f\u7528 \u9999\u6e2fVPS<\/a> \u4f86\u904b\u884c PostgreSQL\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"