{"id":156261,"date":"2024-11-02T19:48:22","date_gmt":"2024-11-02T11:48:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/156261\/"},"modified":"2024-11-02T19:48:23","modified_gmt":"2024-11-02T11:48:23","slug":"%e5%88%86%e5%b8%83%e5%bc%8f-postgresql-%e4%b9%8b-citus-%e6%9e%b6%e6%a7%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/156261\/","title":{"rendered":"\u5206\u5e03\u5f0f PostgreSQL \u4e4b Citus \u67b6\u69cb"},"content":{"rendered":"<h1 id=\"%e5%88%86%e5%b8%83%e5%bc%8f-postgresql-%e4%b9%8b-citus-%e6%9e%b6%e6%a7%8b-OdRIIAloMf\">\u5206\u5e03\u5f0f PostgreSQL \u4e4b Citus \u67b6\u69cb<\/h1>\n<p>\u96a8\u8457\u6578\u64da\u91cf\u7684\u5feb\u901f\u589e\u9577\uff0c\u50b3\u7d71\u7684\u55ae\u4e00\u8cc7\u6599\u5eab\u67b6\u69cb\u5728\u8655\u7406\u5927\u898f\u6a21\u6578\u64da\u6642\u9762\u81e8\u8457\u6027\u80fd\u74f6\u9838\u3002\u70ba\u4e86\u89e3\u6c7a\u9019\u4e00\u554f\u984c\uff0c\u5206\u5e03\u5f0f\u8cc7\u6599\u5eab\u6280\u8853\u9010\u6f38\u53d7\u5230\u91cd\u8996\u3002\u5176\u4e2d\uff0cCitus \u4f5c\u70ba\u4e00\u7a2e\u57fa\u65bc PostgreSQL \u7684\u5206\u5e03\u5f0f\u8cc7\u6599\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u63d0\u4f9b\u4e86\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\u80fd\u529b\u548c\u64f4\u5c55\u6027\uff0c\u6210\u70ba\u8a31\u591a\u4f01\u696d\u7684\u9078\u64c7\u3002<\/p>\n<h2 id=\"citus-%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-OdRIIAloMf\">Citus \u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Citus \u662f\u4e00\u500b\u958b\u6e90\u7684 PostgreSQL \u64f4\u5c55\uff0c\u65e8\u5728\u5c07 PostgreSQL \u8f49\u8b8a\u70ba\u4e00\u500b\u5206\u5e03\u5f0f\u8cc7\u6599\u5eab\u3002\u5b83\u901a\u904e\u5c07\u6578\u64da\u5206\u7247\uff08sharding\uff09\u4e26\u5728\u591a\u500b\u7bc0\u9ede\u4e0a\u9032\u884c\u5206\u4f48\u4f86\u5be6\u73fe\u9ad8\u53ef\u7528\u6027\u548c\u53ef\u64f4\u5c55\u6027\u3002\u9019\u610f\u5473\u8457\u7528\u6236\u53ef\u4ee5\u5728\u591a\u53f0\u4f3a\u670d\u5668\u4e0a\u904b\u884c PostgreSQL\uff0c\u4e26\u5c07\u6578\u64da\u5206\u6563\u5230\u9019\u4e9b\u4f3a\u670d\u5668\u4e0a\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u548c\u6578\u64da\u8655\u7406\u80fd\u529b\u3002<\/p>\n<h2 id=\"citus-%e7%9a%84%e6%9e%b6%e6%a7%8b-OdRIIAloMf\">Citus \u7684\u67b6\u69cb<\/h2>\n<p>Citus \u7684\u67b6\u69cb\u4e3b\u8981\u7531\u4ee5\u4e0b\u5e7e\u500b\u7d44\u4ef6\u7d44\u6210\uff1a<\/p>\n<ul>\n<li><strong>Coordinator Node\uff1a<\/strong>\u5354\u8abf\u7bc0\u9ede\u8ca0\u8cac\u63a5\u6536\u5ba2\u6236\u7aef\u7684\u8acb\u6c42\uff0c\u4e26\u5c07\u8acb\u6c42\u5206\u767c\u5230\u76f8\u61c9\u7684\u5de5\u4f5c\u7bc0\u9ede\u3002\u5b83\u9084\u8ca0\u8cac\u805a\u5408\u4f86\u81ea\u5de5\u4f5c\u7bc0\u9ede\u7684\u7d50\u679c\u4e26\u8fd4\u56de\u7d66\u5ba2\u6236\u7aef\u3002<\/li>\n<li><strong>Worker Nodes\uff1a<\/strong>\u5de5\u4f5c\u7bc0\u9ede\u662f\u5be6\u969b\u5b58\u5132\u6578\u64da\u548c\u57f7\u884c\u67e5\u8a62\u7684\u7bc0\u9ede\u3002\u6bcf\u500b\u5de5\u4f5c\u7bc0\u9ede\u53ef\u4ee5\u5b58\u5132\u4e00\u90e8\u5206\u6578\u64da\uff0c\u4e26\u8655\u7406\u4f86\u81ea\u5354\u8abf\u7bc0\u9ede\u7684\u67e5\u8a62\u8acb\u6c42\u3002<\/li>\n<li><strong>Sharding\uff1a<\/strong>\u6578\u64da\u5206\u7247\u662f Citus \u7684\u6838\u5fc3\u529f\u80fd\u4e4b\u4e00\u3002\u7528\u6236\u53ef\u4ee5\u6839\u64da\u67d0\u500b\u9375\uff08\u5982\u7528\u6236 ID \u6216\u6642\u9593\u6233\uff09\u5c07\u6578\u64da\u5206\u6563\u5230\u4e0d\u540c\u7684\u5de5\u4f5c\u7bc0\u9ede\u4e0a\uff0c\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u5730\u5e73\u8861\u8ca0\u8f09\u4e26\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"citus-%e7%9a%84%e5%84%aa%e5%8b%a2-OdRIIAloMf\">Citus \u7684\u512a\u52e2<\/h2>\n<p>Citus \u63d0\u4f9b\u4e86\u591a\u7a2e\u512a\u52e2\uff0c\u4f7f\u5176\u6210\u70ba\u5206\u5e03\u5f0f\u8cc7\u6599\u5eab\u7684\u7406\u60f3\u9078\u64c7\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u53ef\u64f4\u5c55\u6027\uff1a<\/strong>\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u7528\u6236\u53ef\u4ee5\u8f15\u9b06\u5730\u6dfb\u52a0\u65b0\u7684\u5de5\u4f5c\u7bc0\u9ede\uff0c\u4ee5\u64f4\u5c55\u7cfb\u7d71\u7684\u8655\u7406\u80fd\u529b\u3002<\/li>\n<li><strong>\u9ad8\u6027\u80fd\uff1a<\/strong>\u901a\u904e\u5c07\u67e5\u8a62\u5206\u767c\u5230\u591a\u500b\u5de5\u4f5c\u7bc0\u9ede\uff0cCitus \u80fd\u5920\u540c\u6642\u8655\u7406\u591a\u500b\u67e5\u8a62\uff0c\u5f9e\u800c\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002<\/li>\n<li><strong>\u517c\u5bb9\u6027\uff1a<\/strong>\u4f5c\u70ba PostgreSQL \u7684\u64f4\u5c55\uff0cCitus \u4fdd\u7559\u4e86 PostgreSQL \u7684\u6240\u6709\u529f\u80fd\uff0c\u4e26\u4e14\u7528\u6236\u53ef\u4ee5\u4f7f\u7528\u719f\u6089\u7684 SQL \u8a9e\u6cd5\u9032\u884c\u67e5\u8a62\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8-citus-%e7%9a%84%e5%af%a6%e9%9a%9b%e6%a1%88%e4%be%8b-OdRIIAloMf\">\u4f7f\u7528 Citus \u7684\u5be6\u969b\u6848\u4f8b<\/h2>\n<p>\u8a31\u591a\u4f01\u696d\u5df2\u7d93\u6210\u529f\u5730\u5c07 Citus \u61c9\u7528\u65bc\u5176\u696d\u52d9\u4e2d\u3002\u4f8b\u5982\uff0c\u4e00\u4e9b\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\u5229\u7528 Citus \u4f86\u8655\u7406\u5927\u91cf\u7684\u4ea4\u6613\u6578\u64da\uff0c\u901a\u904e\u5206\u7247\u6280\u8853\u4f86\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\uff0c\u5f9e\u800c\u6539\u5584\u7528\u6236\u9ad4\u9a57\u3002\u6b64\u5916\uff0c\u793e\u4ea4\u5a92\u9ad4\u5e73\u53f0\u4e5f\u4f7f\u7528 Citus \u4f86\u7ba1\u7406\u7528\u6236\u751f\u6210\u7684\u5167\u5bb9\uff0c\u78ba\u4fdd\u7cfb\u7d71\u5728\u9ad8\u6d41\u91cf\u6642\u6bb5\u7684\u7a69\u5b9a\u6027\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e9%96%8b%e5%a7%8b%e4%bd%bf%e7%94%a8-citus-OdRIIAloMf\">\u5982\u4f55\u958b\u59cb\u4f7f\u7528 Citus<\/h2>\n<p>\u8981\u958b\u59cb\u4f7f\u7528 Citus\uff0c\u9996\u5148\u9700\u8981\u5728 PostgreSQL \u4e0a\u5b89\u88dd Citus \u64f4\u5c55\u3002\u4ee5\u4e0b\u662f\u5b89\u88dd\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<pre><code>-- \u5b89\u88dd Citus \u64f4\u5c55\nCREATE EXTENSION citus;\n\n-- \u5275\u5efa\u5206\u7247\u8868\nCREATE TABLE users (\n    id serial PRIMARY KEY,\n    name text,\n    email text\n);\n\n-- \u5c07\u8868\u5206\u7247\nSELECT create_distributed_table('users', 'id');\n<\/code><\/pre>\n<p>\u5b89\u88dd\u5b8c\u6210\u5f8c\uff0c\u7528\u6236\u53ef\u4ee5\u958b\u59cb\u5c07\u6578\u64da\u63d2\u5165\u5230\u5206\u7247\u8868\u4e2d\uff0c\u4e26\u5229\u7528 Citus \u63d0\u4f9b\u7684\u67e5\u8a62\u529f\u80fd\u9032\u884c\u6578\u64da\u5206\u6790\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-OdRIIAloMf\">\u7e3d\u7d50<\/h2>\n<p>Citus \u4f5c\u70ba\u4e00\u7a2e\u57fa\u65bc PostgreSQL \u7684\u5206\u5e03\u5f0f\u8cc7\u6599\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u901a\u904e\u5176\u9ad8\u53ef\u64f4\u5c55\u6027\u548c\u9ad8\u6027\u80fd\u7684\u7279\u6027\uff0c\u70ba\u4f01\u696d\u63d0\u4f9b\u4e86\u6709\u6548\u7684\u6578\u64da\u8655\u7406\u80fd\u529b\u3002\u96a8\u8457\u6578\u64da\u9700\u6c42\u7684\u589e\u52a0\uff0c\u8d8a\u4f86\u8d8a\u591a\u7684\u4f01\u696d\u9078\u64c7 Citus \u4f86\u61c9\u5c0d\u6311\u6230\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4ee5\u652f\u6301\u60a8\u7684 Citus \u90e8\u7f72\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u696d\u52d9\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5206\u5e03\u5f0f PostgreSQL \u7684 Citus \u67b6\u69cb\uff0c\u4e86\u89e3\u5176\u5982\u4f55\u63d0\u5347\u6027\u80fd\u3001\u64f4\u5c55\u6027\u53ca\u6578\u64da\u8655\u7406\u80fd\u529b\uff0c\u9069\u5408\u5927\u898f\u6a21\u61c9\u7528\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-156261","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/156261","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=156261"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/156261\/revisions"}],"predecessor-version":[{"id":156262,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/156261\/revisions\/156262"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=156261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=156261"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=156261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}