{"id":156257,"date":"2024-11-02T19:46:23","date_gmt":"2024-11-02T11:46:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/156257\/"},"modified":"2024-11-02T19:46:24","modified_gmt":"2024-11-02T11:46:24","slug":"%e5%88%86%e5%b8%83%e5%bc%8f-postgresql-%e9%9b%86%e7%be%a4%ef%bc%88citus%ef%bc%89%e5%ae%98%e6%96%b9%e6%95%99%e7%a8%8b-%e9%81%b7%e7%a7%bb%e7%8f%be%e6%9c%89%e6%87%89%e7%94%a8%e7%a8%8b%e5%ba%8f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/156257\/","title":{"rendered":"\u5206\u5e03\u5f0f PostgreSQL \u96c6\u7fa4\uff08Citus\uff09\u5b98\u65b9\u6559\u7a0b &#8211; \u9077\u79fb\u73fe\u6709\u61c9\u7528\u7a0b\u5e8f"},"content":{"rendered":"<h1 id=\"%e5%88%86%e5%b8%83%e5%bc%8f-postgresql-%e9%9b%86%e7%be%a4%ef%bc%88citus%ef%bc%89%e5%ae%98%e6%96%b9%e6%95%99%e7%a8%8b-%e9%81%b7%e7%a7%bb%e7%8f%be%e6%9c%89%e6%87%89%e7%94%a8%e7%a8%8b%e5%ba%8f-ZMJQHACQES\">\u5206\u5e03\u5f0f PostgreSQL \u96c6\u7fa4\uff08Citus\uff09\u5b98\u65b9\u6559\u7a0b &#8211; \u9077\u79fb\u73fe\u6709\u61c9\u7528\u7a0b\u5e8f<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u4f01\u696d\u8d8a\u4f86\u8d8a\u4f9d\u8cf4\u65bc\u9ad8\u6548\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u4f86\u8655\u7406\u5927\u91cf\u7684\u6578\u64da\u3002PostgreSQL \u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u958b\u6e90\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff0c\u5df2\u7d93\u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u696d\u52d9\u5834\u666f\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u55ae\u4e00\u6578\u64da\u5eab\u7684\u6027\u80fd\u53ef\u80fd\u7121\u6cd5\u6eff\u8db3\u9700\u6c42\uff0c\u9019\u6642\u5019\u5206\u5e03\u5f0f\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u5982 Citus \u5c31\u986f\u5f97\u5c24\u70ba\u91cd\u8981\u3002Citus \u662f\u4e00\u500b\u57fa\u65bc PostgreSQL \u7684\u64f4\u5c55\uff0c\u80fd\u5920\u5c07\u6578\u64da\u5206\u7247\u4e26\u5728\u591a\u500b\u7bc0\u9ede\u4e0a\u9032\u884c\u5206\u5e03\u5f0f\u8655\u7406\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%81%b8%e6%93%87-citus%ef%bc%9f-ZMJQHACQES\">\u70ba\u4ec0\u9ebc\u9078\u64c7 Citus\uff1f<\/h2>\n<p>Citus \u63d0\u4f9b\u4e86\u591a\u7a2e\u512a\u52e2\uff0c\u4f7f\u5176\u6210\u70ba\u9077\u79fb\u73fe\u6709\u61c9\u7528\u7a0b\u5e8f\u7684\u7406\u60f3\u9078\u64c7\uff1a<\/p>\n<ul>\n<li><strong>\u53ef\u64f4\u5c55\u6027\uff1a<\/strong>\u96a8\u8457\u696d\u52d9\u7684\u589e\u9577\uff0cCitus \u53ef\u4ee5\u8f15\u9b06\u5730\u901a\u904e\u6dfb\u52a0\u66f4\u591a\u7684\u7bc0\u9ede\u4f86\u64f4\u5c55\u7cfb\u7d71\u3002<\/li>\n<li><strong>\u9ad8\u53ef\u7528\u6027\uff1a<\/strong>\u901a\u904e\u6578\u64da\u7684\u5206\u7247\u548c\u8907\u88fd\uff0cCitus \u63d0\u4f9b\u4e86\u66f4\u9ad8\u7684\u5bb9\u932f\u80fd\u529b\u3002<\/li>\n<li><strong>\u517c\u5bb9\u6027\uff1a<\/strong>\u4f5c\u70ba PostgreSQL \u7684\u64f4\u5c55\uff0cCitus \u4fdd\u6301\u4e86\u8207 PostgreSQL \u7684\u9ad8\u5ea6\u517c\u5bb9\u6027\uff0c\u9019\u610f\u5473\u8457\u73fe\u6709\u7684 SQL \u67e5\u8a62\u548c\u61c9\u7528\u7a0b\u5e8f\u53ef\u4ee5\u7121\u7e2b\u9077\u79fb\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%81%b7%e7%a7%bb%e7%8f%be%e6%9c%89%e6%87%89%e7%94%a8%e7%a8%8b%e5%ba%8f%e7%9a%84%e6%ad%a5%e9%a9%9f-ZMJQHACQES\">\u9077\u79fb\u73fe\u6709\u61c9\u7528\u7a0b\u5e8f\u7684\u6b65\u9a5f<\/h2>\n<p>\u9077\u79fb\u5230 Citus \u7684\u904e\u7a0b\u53ef\u4ee5\u5206\u70ba\u5e7e\u500b\u4e3b\u8981\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e8%a9%95%e4%bc%b0%e7%8f%be%e6%9c%89%e6%9e%b6%e6%a7%8b-ZMJQHACQES\">1. \u8a55\u4f30\u73fe\u6709\u67b6\u69cb<\/h3>\n<p>\u5728\u958b\u59cb\u9077\u79fb\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u8a55\u4f30\u73fe\u6709\u7684\u6578\u64da\u5eab\u67b6\u69cb\u3002\u4e86\u89e3\u6578\u64da\u7684\u7d50\u69cb\u3001\u67e5\u8a62\u6a21\u5f0f\u4ee5\u53ca\u6027\u80fd\u74f6\u9838\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u9019\u5c07\u5e6b\u52a9\u60a8\u5728\u9077\u79fb\u904e\u7a0b\u4e2d\u505a\u51fa\u660e\u667a\u7684\u6c7a\u7b56\u3002<\/p>\n<h3 id=\"2-%e5%ae%89%e8%a3%9d-citus-ZMJQHACQES\">2. \u5b89\u88dd Citus<\/h3>\n<p>\u5728 PostgreSQL \u4e0a\u5b89\u88dd Citus \u64f4\u5c55\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u4f86\u5b89\u88dd\uff1a<\/p>\n<pre><code>CREATE EXTENSION citus;<\/code><\/pre>\n<h3 id=\"3-%e6%95%b8%e6%93%9a%e5%88%86%e7%89%87-ZMJQHACQES\">3. \u6578\u64da\u5206\u7247<\/h3>\n<p>\u5728 Citus \u4e2d\uff0c\u6578\u64da\u662f\u901a\u904e\u5206\u7247\u4f86\u7ba1\u7406\u7684\u3002\u60a8\u9700\u8981\u9078\u64c7\u4e00\u500b\u5408\u9069\u7684\u5206\u7247\u9375\uff0c\u9019\u901a\u5e38\u662f\u67e5\u8a62\u4e2d\u6700\u5e38\u7528\u7684\u5b57\u6bb5\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u5275\u5efa\u5206\u7247\uff1a<\/p>\n<pre><code>SELECT create_distributed_table('your_table_name', 'your_shard_key');<\/code><\/pre>\n<h3 id=\"4-%e6%95%b8%e6%93%9a%e9%81%b7%e7%a7%bb-ZMJQHACQES\">4. \u6578\u64da\u9077\u79fb<\/h3>\n<p>\u5c07\u73fe\u6709\u6578\u64da\u5f9e\u820a\u7684 PostgreSQL \u6578\u64da\u5eab\u9077\u79fb\u5230 Citus\u3002\u53ef\u4ee5\u4f7f\u7528 ETL \u5de5\u5177\u6216\u81ea\u5b9a\u7fa9\u8173\u672c\u4f86\u5b8c\u6210\u9019\u4e00\u904e\u7a0b\u3002\u78ba\u4fdd\u5728\u9077\u79fb\u904e\u7a0b\u4e2d\u4fdd\u6301\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/p>\n<h3 id=\"5-%e6%9b%b4%e6%96%b0%e6%87%89%e7%94%a8%e7%a8%8b%e5%ba%8f%e4%bb%a3%e7%a2%bc-ZMJQHACQES\">5. \u66f4\u65b0\u61c9\u7528\u7a0b\u5e8f\u4ee3\u78bc<\/h3>\n<p>\u6839\u64da Citus \u7684\u7279\u6027\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u5c0d\u61c9\u7528\u7a0b\u5e8f\u7684\u67e5\u8a62\u9032\u884c\u8abf\u6574\u3002\u7279\u5225\u662f\u6d89\u53ca\u5230 JOIN \u64cd\u4f5c\u7684\u67e5\u8a62\uff0c\u53ef\u80fd\u9700\u8981\u9032\u884c\u512a\u5316\u4ee5\u9069\u61c9\u5206\u5e03\u5f0f\u74b0\u5883\u3002<\/p>\n<h3 id=\"6-%e6%b8%ac%e8%a9%a6%e5%92%8c%e5%84%aa%e5%8c%96-ZMJQHACQES\">6. \u6e2c\u8a66\u548c\u512a\u5316<\/h3>\n<p>\u5728\u5b8c\u6210\u9077\u79fb\u5f8c\uff0c\u9032\u884c\u5168\u9762\u7684\u6e2c\u8a66\u4ee5\u78ba\u4fdd\u61c9\u7528\u7a0b\u5e8f\u7684\u529f\u80fd\u6b63\u5e38\u3002\u6839\u64da\u6e2c\u8a66\u7d50\u679c\u9032\u884c\u6027\u80fd\u512a\u5316\uff0c\u78ba\u4fdd\u7cfb\u7d71\u80fd\u5920\u9ad8\u6548\u904b\u884c\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-ZMJQHACQES\">\u7d50\u8ad6<\/h2>\n<p>\u9077\u79fb\u5230 Citus \u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u3002\u901a\u904e\u4ed4\u7d30\u7684\u898f\u5283\u548c\u57f7\u884c\uff0c\u60a8\u53ef\u4ee5\u9806\u5229\u5730\u5c07\u73fe\u6709\u61c9\u7528\u7a0b\u5e8f\u9077\u79fb\u5230\u5206\u5e03\u5f0f PostgreSQL \u96c6\u7fa4\u4e2d\u3002\u9019\u4e0d\u50c5\u80fd\u5920\u6eff\u8db3\u7576\u524d\u7684\u9700\u6c42\uff0c\u9084\u80fd\u70ba\u672a\u4f86\u7684\u589e\u9577\u505a\u597d\u6e96\u5099\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684 Citus \u90e8\u7f72\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u548c\u64f4\u5c55\u60a8\u7684\u6578\u64da\u5eab\u74b0\u5883\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5c07\u73fe\u6709\u61c9\u7528\u7a0b\u5e8f\u9077\u79fb\u81f3\u5206\u5e03\u5f0f PostgreSQL \u96c6\u7fa4\uff08Citus\uff09\uff0c\u63d0\u5347\u6027\u80fd\u8207\u64f4\u5c55\u6027\uff0c\u5b98\u65b9\u6559\u7a0b\u8a73\u76e1\u6307\u5c0e\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-156257","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/156257","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=156257"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/156257\/revisions"}],"predecessor-version":[{"id":156258,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/156257\/revisions\/156258"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=156257"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=156257"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=156257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}