{"id":20795,"date":"2024-01-02T06:04:21","date_gmt":"2024-01-02T06:04:21","guid":{"rendered":"https:\/\/server.hk\/blog\/20795\/"},"modified":"2024-11-14T10:38:31","modified_gmt":"2024-11-14T02:38:31","slug":"postgresql-command-drop-access-method","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/20795\/","title":{"rendered":"PostgreSQL \u547d\u4ee4\uff1aDROP ACCESS METHOD"},"content":{"rendered":"

PostgreSQL \u547d\u4ee4\uff1aDROP ACCESS METHOD<\/h1>\n

PostgreSQL \u662f\u4e00\u500b\u5f37\u5927\u7684\u958b\u6e90\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u5ee3\u6cdb\u7684\u529f\u80fd\u548c\u7279\u6027\u3002PostgreSQL \u7684\u4e00\u500b\u91cd\u8981\u65b9\u9762\u662f\u5176\u7ba1\u7406\u8a2a\u554f\u65b9\u6cd5\u7684\u80fd\u529b\uff0c\u9019\u4e9b\u65b9\u6cd5\u8ca0\u8cac\u6578\u64da\u7684\u5b58\u5132\u548c\u6aa2\u7d22\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0e PostgreSQL \u4e2d\u7684 DROP ACCESS METHOD \u547d\u4ee4\uff0c\u4e26\u4e86\u89e3\u5b83\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/p>\n

\u7406\u89e3 PostgreSQL \u4e2d\u7684\u8a2a\u554f\u65b9\u6cd5<\/h2>\n

\u5728 PostgreSQL \u4e2d\uff0c\u8a2a\u554f\u65b9\u6cd5\u662f\u4e00\u7a2e\u7528\u65bc\u6709\u6548\u7d44\u7e54\u548c\u6aa2\u7d22\u6578\u64da\u7684\u6280\u8853\u6216\u7b97\u6cd5\u3002\u5b83\u6c7a\u5b9a\u4e86\u6578\u64da\u5728\u6578\u64da\u5eab\u4e2d\u7684\u5b58\u5132\u3001\u7d22\u5f15\u548c\u8a2a\u554f\u65b9\u5f0f\u3002PostgreSQL \u63d0\u4f9b\u4e86\u5404\u7a2e\u5167\u5efa\u7684\u8a2a\u554f\u65b9\u6cd5\uff0c\u5982 B-tree\u3001Hash\u3001GiST\u3001SP-GiST\u3001GIN \u548c BRIN\uff0c\u6bcf\u7a2e\u65b9\u6cd5\u90fd\u91dd\u5c0d\u7279\u5b9a\u7684\u4f7f\u7528\u60c5\u6cc1\u548c\u6578\u64da\u7d50\u69cb\u8a2d\u8a08\u3002<\/p>\n

\u8a2a\u554f\u65b9\u6cd5\u5728\u512a\u5316\u67e5\u8a62\u6027\u80fd\u548c\u63d0\u9ad8\u6574\u9ad4\u6578\u64da\u5eab\u6548\u7387\u65b9\u9762\u767c\u63ee\u8457\u81f3\u95dc\u91cd\u8981\u7684\u4f5c\u7528\u3002\u901a\u904e\u70ba\u7279\u5b9a\u7684\u8868\u6216\u7d22\u5f15\u9078\u64c7\u9069\u7576\u7684\u8a2a\u554f\u65b9\u6cd5\uff0c\u60a8\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u6aa2\u7d22\u64cd\u4f5c\u7684\u901f\u5ea6\u548c\u6709\u6548\u6027\u3002<\/p>\n

DROP ACCESS METHOD \u547d\u4ee4<\/h2>\n

PostgreSQL \u4e2d\u7684 DROP ACCESS METHOD \u547d\u4ee4\u5141\u8a31\u60a8\u5f9e\u6578\u64da\u5eab\u4e2d\u522a\u9664\u5148\u524d\u5b9a\u7fa9\u7684\u8a2a\u554f\u65b9\u6cd5\u3002\u9019\u6709\u52a9\u65bc\u901a\u904e\u6839\u64da\u60a8\u7684\u5177\u9ad4\u9700\u6c42\u6dfb\u52a0\u6216\u522a\u9664\u8a2a\u554f\u65b9\u6cd5\u4f86\u7ba1\u7406\u8a2a\u554f\u65b9\u6cd5\u3002<\/p>\n

DROP ACCESS METHOD \u547d\u4ee4\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n

DROP ACCESS METHOD [ IF EXISTS ] access_method_name;<\/code><\/pre>\n
\u9019\u88e1\uff0caccess_method_name<\/code> \u662f\u60a8\u60f3\u8981\u522a\u9664\u7684\u8a2a\u554f\u65b9\u6cd5\u7684\u540d\u7a31\u3002<\/p>\n
\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u522a\u9664\u8a2a\u554f\u65b9\u6cd5\u4e5f\u6703\u79fb\u9664\u4f7f\u7528\u8a72\u8a2a\u554f\u65b9\u6cd5\u5275\u5efa\u7684\u4efb\u4f55\u76f8\u95dc\u7d22\u5f15\u3002\u56e0\u6b64\uff0c\u5728\u57f7\u884c DROP ACCESS METHOD \u547d\u4ee4\u4e4b\u524d\uff0c\u52d9\u5fc5\u78ba\u4fdd\u60a8\u4e0d\u518d\u9700\u8981\u8a72\u8a2a\u554f\u65b9\u6cd5\u53ca\u5176\u76f8\u95dc\u7d22\u5f15\u3002<\/p>\n
\u793a\u4f8b<\/h2>\n
\u8b93\u6211\u5011\u8003\u616e\u4e00\u500b\u793a\u4f8b\uff0c\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba\u300cemployees\u300d\u7684\u8868\uff0c\u4e26\u4f7f\u7528 B-tree \u8a2a\u554f\u65b9\u6cd5\u5275\u5efa\u4e86\u4e00\u500b\u7d22\u5f15\u3002\u8981\u522a\u9664 B-tree \u8a2a\u554f\u65b9\u6cd5\u53ca\u5176\u76f8\u95dc\u7d22\u5f15\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
DROP ACCESS METHOD btree;<\/code><\/pre>\n
\u6b64\u547d\u4ee4\u5c07\u5f9e\u6578\u64da\u5eab\u4e2d\u79fb\u9664 B-tree \u8a2a\u554f\u65b9\u6cd5\u53ca\u4f7f\u7528\u5b83\u5275\u5efa\u7684\u4efb\u4f55\u7d22\u5f15\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
PostgreSQL \u7684 DROP ACCESS METHOD \u547d\u4ee4\u63d0\u4f9b\u4e86\u4e00\u7a2e\u65b9\u4fbf\u7684\u65b9\u6cd5\u4f86\u5f9e\u6578\u64da\u5eab\u4e2d\u522a\u9664\u8a2a\u554f\u65b9\u6cd5\u3002\u901a\u904e\u6709\u6548\u7ba1\u7406\u8a2a\u554f\u65b9\u6cd5\uff0c\u60a8\u53ef\u4ee5\u512a\u5316\u6578\u64da\u6aa2\u7d22\u64cd\u4f5c\u4e26\u63d0\u9ad8\u6574\u9ad4\u6578\u64da\u5eab\u6027\u80fd\u3002\u4e86\u89e3 PostgreSQL \u4e2d\u53ef\u7528\u7684\u4e0d\u540c\u8a2a\u554f\u65b9\u6cd5\u53ca\u5176\u9069\u7576\u7684\u4f7f\u7528\u81f3\u95dc\u91cd\u8981\uff0c\u4ee5\u5be6\u73fe\u9ad8\u6548\u7684\u6578\u64da\u5eab\u7ba1\u7406\u3002<\/p>\n
\u5982\u9700\u4e86\u89e3\u6709\u95dc VPS \u8a17\u7ba1\u7684\u66f4\u591a\u4fe1\u606f\u53ca\u5176\u5982\u4f55\u60e0\u53ca\u60a8\u7684\u696d\u52d9\uff0c\u8acb\u8a2a\u554f Server.HK<\/a>\u3002\u6211\u5011\u7684\u9999\u6e2f VPS \u8a17\u7ba1\u89e3\u6c7a\u65b9\u6848\u53ef\u9760\u3001\u5b89\u5168\uff0c\u4e26\u91cf\u8eab\u5b9a\u5236\u4ee5\u6eff\u8db3\u60a8\u7684\u5177\u9ad4\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
PostgreSQL \u547d\u4ee4\uff1aDR...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-20795","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/20795","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=20795"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/20795\/revisions"}],"predecessor-version":[{"id":24300,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/20795\/revisions\/24300"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=20795"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=20795"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=20795"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}