{"id":201234,"date":"2025-05-10T08:49:30","date_gmt":"2025-05-10T00:49:30","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201234\/"},"modified":"2025-05-10T08:49:30","modified_gmt":"2025-05-10T00:49:30","slug":"redis%e4%b8%ad%e7%9a%84bitmap%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201234\/","title":{"rendered":"Redis\u4e2d\u7684bitmap\u8be6\u89e3"},"content":{"rendered":"

<\/b> <\/p>\n

Redis\u4e2d\u7684bitmap\u8be6\u89e3<\/h1>\n

<\/i>\u6536\u85cf<\/span> <\/p>\n

IT\u884c\u4e1a\u76f8\u5bf9\u4e8e\u4e00\u822c\u4f20\u7edf\u884c\u4e1a\uff0c\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u66f4\u5feb\uff0c\u4e00\u65e6\u505c\u6b62\u4e86\u5b66\u4e60\uff0c\u5f88\u5feb\u5c31\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u6240\u4ee5\u6211\u4eec\u9700\u8981\u8e0f\u8e0f\u5b9e\u5b9e\u7684\u4e0d\u65ad\u5b66\u4e60\uff0c\u7cbe\u8fdb\u81ea\u5df1\u7684\u6280\u672f\uff0c\u5c24\u5176\u662f\u521d\u5b66\u8005\u3002\u4eca\u5929golang\u5b66\u4e60\u7f51\u7ed9\u5927\u5bb6\u6574\u7406\u4e86\u300aRedis\u4e2d\u7684bitmap\u8be6\u89e3\u300b\uff0c\u804a\u804aredisbitmap\uff0c\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n

1\u3001\u4ec0\u4e48\u662fbitmap\uff1f<\/h2>\n
\n

bitmap\u4e5f\u53eb\u4f4d\u56fe\uff0c\u4e5f\u5c31\u662f\u7528\u4e00\u4e2abit\u4f4d\u6765\u8868\u793a\u4e00\u4e2a\u4e1c\u897f\u7684\u72b6\u6001\uff0c\u6211\u4eec\u90fd\u77e5\u9053bit\u4f4d\u662f\u4e8c\u8fdb\u5236\uff0c\u6240\u4ee5\u53ea\u6709\u4e24\u79cd\u72b6\u6001\uff0c0\u548c1\u3002<\/p>\n<\/blockquote>\n

2\u3001\u4e3a\u4ec0\u4e48\u8981\u6709bitmap\uff1f<\/h2>\n
\n

bitmap\u7684\u51fa\u73b0\u5c31\u662f\u4e3a\u4e86\u5927\u6570\u636e\u91cf\u800c\u6765\u7684\uff0c\u4f46\u662f\u524d\u63d0\u662f\u7edf\u8ba1\u7684\u8fd9\u4e2a\u5927\u6570\u636e\u91cf\u6bcf\u4e2a\u7684\u72b6\u6001\u53ea\u80fd\u6709\u4e24\u79cd\uff0c\u56e0\u4e3a\u6bcf\u4e00\u4e2abit\u4f4d\u53ea\u80fd\u8868\u793a\u4e24\u79cd\u72b6\u6001\u3002
\u4e0b\u9762\u6211\u4eec\u76f4\u63a5\u4ee5\u4e00\u4e2a\u7edf\u8ba1\u4ebf\u7ea7\u7528\u6237\u6d3b\u52a8\u7684\u72b6\u6001\u6765\u8bf4\u660e\u5427\u3002<\/p>\n<\/blockquote>\n

3\u3001\u6848\u4f8b\u8bf4\u660e<\/h2>\n

3.1\u3001\u6848\u4f8b\u63cf\u8ff0<\/h3>\n
\n

\u5982\u679c\u6709\u4e00\u4e2a\u4e0a\u4ebf\u7528\u6237\u7684\u7cfb\u7edf\uff0c\u9700\u8981\u6211\u4eec\u53bb\u7edf\u8ba1\u6bcf\u4e00\u5929\u7684\u7528\u6237\u767b\u5f55\u60c5\u51b5\uff0c\u6211\u4eec\u5e94\u8be5\u5982\u4f55\u53bb\u89e3\u51b3\uff1f
\u524d\u63d0\u6761\u4ef6\uff1a\u8bbe\u7f6e\u57289\u670819\u53f7\u6709\u4e0b\u6807\u4e3a100\u3001101\u3001102\u3001103\u56db\u4e2a\u7528\u6237\u90fd\u767b\u5f55\u4e86\u7cfb\u7edf
\u8bbe\u7f6e\u57289\u670820\u53f7\u6709\u4e0b\u6807\u4e3a100\u3001101\u3001102\u4e09\u4e2a\u7528\u6237\u90fd\u767b\u5f55\u4e86\u7cfb\u7edf
\u63d0\u51fa\u95ee\u9898\uff1a
1\u3001\u53d6\u51fa9\u670819\u53f7\u767b\u5f55\u7cfb\u7edf\u7684\u6709\u591a\u5c11\u4eba\uff1f
\u7b54\uff1a\u76f4\u63a5\u83b7\u53d6\u5373\u53ef\u3002
2\u3001\u53d6\u51fa9\u670819\u53f7\u548c9\u670820\u53f7\u8fde\u7eed\u767b\u5f55\u7cfb\u7edf\u7684\u6709\u591a\u5c11\u4eba\uff1f
\u7b54\uff1a\u4e24\u5929\u7684\u6570\u636e\u53d6&\u8fd0\u7b97\u3002
3\u3001\u53d6\u51fa9\u670819\u53f7\u4e0e9\u670820\u53f7\u4efb\u610f\u4e00\u5929\u767b\u5f55\u7684\u6709\u591a\u5c11\u4eba\uff1f
\u7b54\uff1a\u4e24\u5929\u7684\u6570\u636e\u53d6|\u8fd0\u7b97\u3002<\/p>\n<\/blockquote>\n

3.2\u3001\u89e3\u51b3\u65b9\u6848<\/h3>\n

3.2.1\u3001\u89e3\u51b3\u65b9\u68481\u2014\u4f7f\u7528\u4f20\u7edf\u6570\u636e\u5e93\u89e3\u51b3<\/p>\n

\n

\u5982\u679c\u6211\u4eec\u9700\u8981\u4f7f\u7528\u4f20\u7edf\u7684\u6570\u636e\u5e93\u53bb\u7edf\u8ba1\u7684\u8bdd\uff0c\u6211\u4e48\u9700\u8981\u521b\u5efa\u4e00\u5f20\u8868\uff0c\u7136\u540e\u67d0\u4e2a\u7528\u6237\u767b\u5f55\u4e86\uff0c\u6211\u4eec\u5c31\u53bb\u5728\u8868\u91cc\u9762\u63d2\u4e0a\u4e00\u6761\u8bb0\u5f55\uff0c\u767b\u8bb0\u7528\u6237\u7684id\uff0c\u7528\u6237\u767b\u5f55\u7684\u65f6\u95f4\u7b49\u7b49\uff0c\u4f46\u662f\u8fd9\u6837\u51fa\u73b0\u7684\u95ee\u9898\u5c31\u662f\uff0c\u6bcf\u4e00\u5929\u7684\u6570\u636e\u91cf\u90fd\u5f88\u5927\uff0c\u6211\u4eec\u5728\u7edf\u8ba1\u65e5\u6d3b\u65f6\uff0c\u6548\u7387\u5c31\u5f88\u4f4e\uff0c\u6240\u4ee5\u8fd9\u79cd\u89e3\u51b3\u65b9\u6848\u662f\u4e0d\u80fd\u88ab\u8003\u8651\u7684\u3002<\/p>\n<\/blockquote>\n

3.2.2\u3001\u89e3\u51b3\u65b9\u68482\u2014\u4f7f\u7528bitmap\u89e3\u51b3<\/p>\n

\n

\u65e2\u7136\u7528\u6237\u767b\u5f55\u53ea\u6709\u4e24\u79cd\u72b6\u6001\uff0c\u90a3\u4e48\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u7528bitmap
\u6bd4\u59820\u8868\u793a\u672a\u767b\u5f55\uff0c1\u8868\u793a\u767b\u5f55<\/p>\n<\/blockquote>\n

\n\/\/ \u8bbe\u7f6e\u57289\u670819\u53f7\u6709\u4e0b\u6807\u4e3a100\u3001101\u3001102\u3001103\u56db\u4e2a\u7528\u6237\u90fd\u767b\u5f55\u4e86\u7cfb\u7edf start\n127.0.0.1:6379> setbit login_09_19 100 1\n(integer) 0\n127.0.0.1:6379> setbit login_09_19 101 1\n(integer) 0\n127.0.0.1:6379> setbit login_09_19 102 1\n(integer) 0\n127.0.0.1:6379> setbit login_09_19 103 1\n(integer) 0\n\/\/ \u8bbe\u7f6e\u57289\u670819\u53f7\u6709\u4e0b\u6807\u4e3a100\u3001101\u3001102\u3001103\u56db\u4e2a\u7528\u6237\u90fd\u767b\u5f55\u4e86\u7cfb\u7edf end\n\n\/\/ \u8bbe\u7f6e\u57289\u670820\u53f7\u6709\u4e0b\u6807\u4e3a100\u3001101\u3001102\u4e09\u4e2a\u7528\u6237\u90fd\u767b\u5f55\u4e86\u7cfb\u7edf start\n127.0.0.1:6379> setbit login_09_20 100 1\n(integer) 0\n127.0.0.1:6379> setbit login_09_20 101 1\n(integer) 0\n127.0.0.1:6379> setbit login_09_20 102 1\n(integer) 0\n\/\/ \u8bbe\u7f6e\u57289\u670820\u53f7\u6709\u4e0b\u6807\u4e3a100\u3001101\u3001102\u4e09\u4e2a\u7528\u6237\u90fd\u767b\u5f55\u4e86\u7cfb\u7edf end\n\n\/\/ \u53d6\u51fa9\u670819\u53f7\u767b\u5f55\u7cfb\u7edf\u7684\u6709\u591a\u5c11\u4eba\uff1f start\n127.0.0.1:6379> bitcount login_09_19\n(integer) 4\n\/\/ \u53d6\u51fa9\u670819\u53f7\u767b\u5f55\u7cfb\u7edf\u7684\u6709\u591a\u5c11\u4eba\uff1f end\n\n\/\/ \u53d6\u51fa9\u670819\u53f7\u548c9\u670820\u53f7\u8fde\u7eed\u767b\u5f55\u7cfb\u7edf\u7684\u6709\u591a\u5c11\u4eba\uff1fstart\n127.0.0.1:6379> bitop and login_in_09_19_20:and login_09_19 login_09_20\n(integer) 13\n127.0.0.1:6379> bitcount login_in_09_19_20:and\n(integer) 3\n\/\/ \u53d6\u51fa9\u670819\u53f7\u548c9\u670820\u53f7\u8fde\u7eed\u767b\u5f55\u7cfb\u7edf\u7684\u6709\u591a\u5c11\u4eba\uff1fend\n\n\/\/ \u53d6\u51fa9\u670819\u53f7\u4e0e9\u670820\u53f7\u4efb\u610f\u4e00\u5929\u767b\u5f55\u7684\u6709\u591a\u5c11\u4eba\uff1fstart\n127.0.0.1:6379> bitop or login_in_09_19_20:or login_09_19 login_09_20\n(integer) 13\n127.0.0.1:6379> bitcount login_in_09_19_20:or\n(integer) 4\n\/\/ \u53d6\u51fa9\u670819\u53f7\u4e0e9\u670820\u53f7\u4efb\u610f\u4e00\u5929\u767b\u5f55\u7684\u6709\u591a\u5c11\u4eba\uff1fend\n<\/pre>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
Redis\u4e2d\u7684bitmap\u8be6\u89e3 ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-201234","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201234","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=201234"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201234\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201234"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201234"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201234"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}