{"id":484,"date":"2013-07-27T00:07:05","date_gmt":"2013-07-26T16:07:05","guid":{"rendered":"http:\/\/blog.staryland.com\/?p=484"},"modified":"2014-10-16T00:42:07","modified_gmt":"2014-10-16T00:42:07","slug":"mysql-%e8%87%aa%e5%a2%9eid-%e5%92%8c-uuid-%e5%81%9a%e4%b8%bb%e9%94%ae%e7%9a%84%e5%88%9d%e6%ad%a5%e6%80%a7%e8%83%bd%e7%a0%94%e7%a9%b6","status":"publish","type":"post","link":"https:\/\/zhuangzr.me\/wordpress\/2013\/07\/mysql-%e8%87%aa%e5%a2%9eid-%e5%92%8c-uuid-%e5%81%9a%e4%b8%bb%e9%94%ae%e7%9a%84%e5%88%9d%e6%ad%a5%e6%80%a7%e8%83%bd%e7%a0%94%e7%a9%b6\/","title":{"rendered":"MySQL \u81ea\u589eID \u548c UUID \u505a\u4e3b\u952e\u7684\u521d\u6b65\u6027\u80fd\u7814\u7a76"},"content":{"rendered":"<p>\u8fd9\u51e0\u5929\u5728\u7ea0\u7ed3\u6570\u636e\u8868\u4e3b\u952e\u7684\u8bbe\u8ba1\u95ee\u9898\uff0c\u8003\u8651\u4f7f\u7528\u81ea\u589eID\u8fd8\u662fUUID\u6765\u505a\u4e3b\u952e\uff0c\u6570\u636e\u5e93\u540e\u7aef\u4e3aMySQL\u3002<br \/>\n\u9996\u5148\u5728\u4e92\u8054\u7f51\u4e0a\u641c\u7d22\uff0c\u5f97\u5230<a href=\"http:\/\/www.17jquery.com\/mysql\/21030\/\">\u5b9e\u6d4b Mysql UUID \u6027\u80fd<\/a>\u8fd9\u7bc7\u6587\u7ae0\uff0c\u4ed6\u7684\u7ed3\u8bba\u662f\uff1a<\/p>\n<blockquote><p>\u5f53\u6570\u636e\u8868\u7684\u5f15\u64ce\u4e3aMyISAM \u65f6\uff0c\u81ea\u589e ID \u65e0\u7591\u662f\u6548\u7387\u6700\u9ad8\u7684\uff0c UUID \u6548\u7387\u7565\u4f4e\uff0c\u4f46\u4e0d\u4f1a\u4f4e\u5230\u65e0\u6cd5\u63a5\u53d7\u3002\u4e00\u65e6\u6570\u636e\u5f15\u64ce\u4e3a InnodB \u65f6\uff0c\u6548\u7387\u4e0b\u964d\u975e\u5e38\u4e25\u91cd\uff0c\u5df2\u7ecf\u8fbe\u5230\u4ee4\u4eba\u53d1\u6307\u7684\u5730\u6b65\u3002\u7531\u4e8e InnodB \u4e3b\u952e\u91c7\u7528 \u805a\u96c6\u7d22\u5f15 \uff0c\u4f1a\u5bf9\u63d2\u5165\u7684\u8bb0\u5f55\u8fdb\u884c\u7269\u7406\u6392\u5e8f\uff0c\u800c UUID\u672c\u8eab\u57fa\u672c\u4e0a\u662f\u65e0\u5e8f\u7684\uff0c\u6240\u4ee5\u9020\u6210\u4e86\u5de8\u5927\u7684 I\/O \u5f00\u9500\u3002\u6240\u4ee5\u5982\u679c\u4f7f\u7528 innodB \u5343\u4e07\u4e0d\u8981\u4f7f\u7528 UUID \u3002<\/p><\/blockquote>\n<p>\u7ed3\u8bba\u7ecf\u8fc7\u6211\u540e\u6765\u7684\u6d4b\u8bd5\u9a8c\u8bc1\u57fa\u672c\u6b63\u786e\uff0c\u4f46\u662f\u5bf9\u8fd9\u7bc7\u6587\u7ae0\u4e2d\u95f4\u7684\u6d4b\u8bd5\u65b9\u6cd5\u4e0d\u6562\u82df\u540c\u3002<\/p>\n<p>\u5176\u6d4b\u8bd5\u8fc7\u7a0b\u4e2d\u91cd\u5927\u9519\u8bef\uff1a\u9488\u5bf9\u81ea\u589eid\u7684\u4e24\u4e2a\u8868\u7684\u63d2\u5165\u64cd\u4f5c\u6ca1\u6709\u5199\u5165varchar\u5b57\u6bb5\uff0c\u8003\u8651\u5230varchar\u63d2\u5165\u7684\u6027\u80fd\u6d88\u8017\uff0c\u8fd9\u4e00\u70b9\u662f\u7edd\u5bf9\u4e0d\u80fd\u591f\u5ffd\u7565\u7684\uff01<\/p>\n<p>\u5efa\u7acb\u56db\u5f20\u6d4b\u8bd5\u7528\u8868:<\/p>\n<pre class=\"brush: sql; title: ; notranslate\" title=\"\">uuidtest_inno(uuid,text),\r\nidtest_inno(id,text),\r\nuuidtest_myisam(uuid,text),\r\nidtest_myisam(id,text)\r\n<\/pre>\n<p>\u5efa\u7acb\u56db\u4e2a\u5b58\u50a8\u8fc7\u7a0b\uff0c\u6d4b\u8bd5\u6570\u636e\u91cf\u63d2\u5165100 000\u884c:<\/p>\n<pre class=\"brush: sql; title: ; notranslate\" title=\"\">DROP PROCEDURE IF EXISTS p_uuid_inno\/\/\r\nCREATE PROCEDURE p_uuid_inno()\r\nBEGIN\r\nDECLARE i INT;\r\nSET i=0;\r\nWHILE i<\/pre>\n<p>\u6e05\u7a7a\u8fd9\u56db\u4e2a\u8868:<\/p>\n<pre class=\"brush: sql; title: ; notranslate\" title=\"\">TRUNCATE inttest_inno\/\/\r\nTRUNCATE uuidtest_inno\/\/\r\nTRUNCATE inttest_myisam\/\/\r\nTRUNCATE uuidtest_myisam\/\/\r\n<\/pre>\n<p>\u6267\u884c\u5b58\u50a8\u8fc7\u7a0b:<\/p>\n<pre class=\"brush: sql; title: ; notranslate\" title=\"\">call p_int_myisam()\/\/\r\ncall p_uuid_myisam()\/\/\r\ncall p_int_inno()\/\/\r\ncall p_uuid_inno()\/\/\r\n<\/pre>\n<p>\u53d1\u73b0\u6267\u884c\u65f6\u95f4\u5de8\u957f\u65e0\u6bd4\u3002\u65e0\u5948\uff0c\u5c06\u6d4b\u8bd5\u6570\u636e\u91cf\u7f29\u51cf\u52301000\u6b21\u63d2\u5165\u3002<br \/>\nmyisam\u7684\u65f6\u95f4\u90fd\u662f0.2s\u5de6\u53f3\uff0cinnodb\u4e3a55s\u5de6\u53f3\u3002<\/p>\n<p>\u8003\u8651\u6570\u636e\u5e93\u4f18\u5316\uff0c\u653e\u5f03ACID\u652f\u6301\uff0c<br \/>\n\u8bbe\u7f6e innodb_flush_log_at_trx_commit = 2<br \/>\n\u5f97\u5230\uff1a<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">mysql&amp;gt; call p_int_myisam();\r\nQuery OK, 1 row affected (2.02 sec)\r\n\r\nmysql&amp;gt; call p_uuid_myisam();\r\nQuery OK, 1 row affected (2.63 sec)\r\n\r\nmysql&amp;gt; call p_int_inno();\r\nQuery OK, 1 row affected (9.71 sec)\r\n\r\nmysql&amp;gt; call p_uuid_inno();\r\nQuery OK, 1 row affected (13.88 sec)\r\n<\/pre>\n<p>\u518d\u8bbe\u7f6e innodb_flush_method = O_DIRECT<br \/>\n\u5f97\u5230\uff1a<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">mysql&amp;gt; call p_int_myisam();\r\nQuery OK, 1 row affected (2.06 sec)\r\n\r\nmysql&amp;gt; call p_uuid_myisam();\r\nQuery OK, 1 row affected (2.56 sec)\r\n\r\nmysql&amp;gt; call p_int_inno();\r\nQuery OK, 1 row affected (7.59 sec)\r\n\r\nmysql&amp;gt; call p_uuid_inno();\r\nQuery OK, 1 row affected (10.88 sec)\r\n<\/pre>\n<p>\u518d\u8bbe\u7f6e innodb_log_buffer_size = 8M\uff08\u4e4b\u524d\u7684\u8bbe\u7f6e\u662f3M\uff09<br \/>\n\u5f97\u5230\uff1a<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">mysql&amp;gt; call p_int_myisam();\r\nQuery OK, 1 row affected (1.96 sec)\r\n\r\nmysql&amp;gt; call p_uuid_myisam();\r\nQuery OK, 1 row affected (2.63 sec)\r\n\r\nmysql&amp;gt; call p_int_inno();\r\nQuery OK, 1 row affected (5.28 sec)\r\n\r\nmysql&amp;gt; call p_uuid_inno();\r\nQuery OK, 1 row affected (9.59 sec)\r\n<\/pre>\n<p>\u53ef\u4ee5\u770b\u5230\u5bf9innodb\u6765\u8bf4\u63d2\u5165\u901f\u5ea6\u4f4e\u4e8emyisam\uff0c\u8fd9\u4e0e\u9009\u62e9uuid\u8fd8\u662f\u81ea\u589eID\u505a\u4e3b\u952e\u6ca1\u6709\u592a\u5927\u7684\u5173\u7cfb\uff0cuuid\u7684\u786e\u8981\u6bd4\u81ea\u589eID\u6162\u4f46\u662f\u4e0d\u81f3\u4e8e\u8bf4\u662f\u6570\u91cf\u7ea7\u4e0a\u7684\u6162\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u51e0\u5929\u5728\u7ea0\u7ed3\u6570\u636e\u8868\u4e3b\u952e\u7684\u8bbe\u8ba1\u95ee\u9898\uff0c\u8003\u8651\u4f7f\u7528\u81ea\u589eID\u8fd8\u662fUUID\u6765\u505a\u4e3b\u952e\uff0c\u6570\u636e\u5e93\u540e\u7aef\u4e3aMySQL\u3002 \u9996\u5148\u5728\u4e92\u8054\u7f51\u4e0a\u641c\u7d22\uff0c\u5f97\u5230\u5b9e\u6d4b Mysql UUID \u6027\u80fd\u8fd9\u7bc7\u6587\u7ae0\uff0c\u4ed6\u7684\u7ed3\u8bba\u662f\uff1a \u5f53\u6570\u636e\u8868\u7684\u5f15\u64ce\u4e3aMyISAM \u65f6\uff0c\u81ea\u589e ID \u65e0\u7591\u662f\u6548\u7387\u6700\u9ad8\u7684\uff0c UUID \u6548\u7387\u7565\u4f4e\uff0c\u4f46\u4e0d\u4f1a\u4f4e\u5230\u65e0\u6cd5\u63a5\u53d7\u3002\u4e00\u65e6\u6570\u636e\u5f15\u64ce\u4e3a InnodB \u65f6\uff0c\u6548\u7387\u4e0b\u964d\u975e\u5e38\u4e25\u91cd\uff0c\u5df2\u7ecf\u8fbe\u5230\u4ee4\u4eba\u53d1\u6307\u7684\u5730\u6b65\u3002\u7531\u4e8e InnodB \u4e3b\u952e\u91c7\u7528 \u805a\u96c6\u7d22\u5f15 \uff0c\u4f1a\u5bf9\u63d2\u5165\u7684\u8bb0\u5f55\u8fdb\u884c\u7269\u7406\u6392\u5e8f\uff0c\u800c UUID\u672c\u8eab\u57fa\u672c\u4e0a\u662f\u65e0\u5e8f\u7684\uff0c\u6240\u4ee5\u9020\u6210\u4e86\u5de8\u5927\u7684 I\/O \u5f00\u9500\u3002\u6240\u4ee5\u5982\u679c\u4f7f\u7528 innodB \u5343\u4e07\u4e0d\u8981\u4f7f\u7528 UUID \u3002 \u7ed3\u8bba\u7ecf\u8fc7\u6211\u540e\u6765\u7684\u6d4b\u8bd5\u9a8c\u8bc1\u57fa\u672c\u6b63\u786e\uff0c\u4f46\u662f\u5bf9\u8fd9\u7bc7\u6587\u7ae0\u4e2d\u95f4\u7684\u6d4b\u8bd5\u65b9\u6cd5\u4e0d\u6562\u82df\u540c\u3002 \u5176\u6d4b\u8bd5\u8fc7\u7a0b\u4e2d\u91cd\u5927\u9519\u8bef\uff1a\u9488\u5bf9\u81ea\u589eid\u7684\u4e24\u4e2a\u8868\u7684\u63d2\u5165\u64cd\u4f5c\u6ca1\u6709\u5199\u5165varchar\u5b57\u6bb5\uff0c\u8003\u8651\u5230varchar\u63d2\u5165\u7684\u6027\u80fd\u6d88\u8017\uff0c\u8fd9\u4e00\u70b9\u662f\u7edd\u5bf9\u4e0d\u80fd\u591f\u5ffd\u7565\u7684\uff01 \u5efa\u7acb\u56db\u5f20\u6d4b\u8bd5\u7528\u8868: uuidtest_inno(uuid,text), idtest_inno(id,text), uuidtest_myisam(uuid,text), idtest_myisam(id,text) \u5efa\u7acb\u56db\u4e2a\u5b58\u50a8\u8fc7\u7a0b\uff0c\u6d4b\u8bd5\u6570\u636e\u91cf\u63d2\u5165100 000\u884c: DROP PROCEDURE IF EXISTS p_uuid_inno\/\/ CREATE PROCEDURE p_uuid_inno() BEGIN DECLARE i INT; SET i=0; WHILE i \u6e05\u7a7a\u8fd9\u56db\u4e2a\u8868: TRUNCATE inttest_inno\/\/ TRUNCATE uuidtest_inno\/\/ TRUNCATE &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/zhuangzr.me\/wordpress\/2013\/07\/mysql-%e8%87%aa%e5%a2%9eid-%e5%92%8c-uuid-%e5%81%9a%e4%b8%bb%e9%94%ae%e7%9a%84%e5%88%9d%e6%ad%a5%e6%80%a7%e8%83%bd%e7%a0%94%e7%a9%b6\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;MySQL \u81ea\u589eID \u548c UUID \u505a\u4e3b\u952e\u7684\u521d\u6b65\u6027\u80fd\u7814\u7a76&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-484","post","type-post","status-publish","format-standard","hentry","category-mysql"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.9 - aioseo.com -->\n\t<meta name=\"description\" content=\"MySQL\u4e2d\u81ea\u589eID\u548cUUID\u505a\u4e3b\u952e\u5e76\u6ca1\u6709\u5f88\u5927\u7684\u6027\u80fd\u5dee\u8ddd\u3002\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" 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