{"id":50183,"date":"2023-11-23T07:25:08","date_gmt":"2023-02-23T13:55:16","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/cql%ef%bc%88cassandra%e6%9f%a5%e8%af%a2%e8%af%ad%e8%a8%80%ef%bc%89%e5%8f%af%e5%81%9a%e7%9a%84%e4%ba%8b%e6%83%85%ef%bc%8c%e4%b8%8d%e8%83%bd%e5%81%9a%e7%9a%84%e4%ba%8b%e6%83%85\/"},"modified":"2024-05-04T10:25:14","modified_gmt":"2024-05-04T02:25:14","slug":"cql%ef%bc%88cassandra%e6%9f%a5%e8%af%a2%e8%af%ad%e8%a8%80%ef%bc%89%e5%8f%af%e5%81%9a%e7%9a%84%e4%ba%8b%e6%83%85%ef%bc%8c%e4%b8%8d%e8%83%bd%e5%81%9a%e7%9a%84%e4%ba%8b%e6%83%85","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/cql%ef%bc%88cassandra%e6%9f%a5%e8%af%a2%e8%af%ad%e8%a8%80%ef%bc%89%e5%8f%af%e5%81%9a%e7%9a%84%e4%ba%8b%e6%83%85%ef%bc%8c%e4%b8%8d%e8%83%bd%e5%81%9a%e7%9a%84%e4%ba%8b%e6%83%85\/","title":{"rendered":"CQL\uff08Cassandra\u67e5\u8be2\u8bed\u8a00\uff09\u53ef\u505a\u7684\u4e8b\u60c5\uff0c\u4e0d\u80fd\u505a\u7684\u4e8b\u60c5"},"content":{"rendered":"<h1>\u592a\u957f\u4e0d\u770b<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">CQL\u306f\u4e00\u898bSQL\u3068\u540c\u3058\u69cb\u6587\u3060\u304c\u610f\u5916\u3068\u5b9f\u73fe\u3067\u304d\u306a\u3044\u3053\u3068\u304c\u591a\u3044<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u5236\u9650\u3092\u3057\u3063\u304b\u308a\u7406\u89e3\u3057\u305f\u4e0a\u3067Cassandra\u3092\u6d3b\u7528\u3057\u3088\u3046<\/ul>\n<h1>\u76ee\u6807\u8bfb\u8005<\/h1>\n<ul class=\"post-ul\">Cassandra\u5c0e\u5165\u3092\u691c\u8a0e\u3057\u3066\u3044\u308b\u65b9<\/ul>\n<h1>\u9996\u5148<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Cassandra\u3078\u306e\u554f\u5408\u305b\u8a00\u8a9e\u3067\u3042\u308bCQL\u306fSQL\u306b\u4f3c\u305f\u6587\u6cd5\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u304c\u3001SQL\u3067\u306f\u5f53\u305f\u308a\u524d\u306b\u53ef\u80fd\u306a\u554f\u3044\u5408\u308f\u305b\u304c\u3067\u304d\u306a\u3044\u3053\u3068\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002\u5b89\u6613\u306bRDBMS\u304b\u3089\u306e\u79fb\u884c\u304c\u3067\u304d\u308b\u3068\u932f\u899a\u3059\u308b\u3068\u5927\u5909\u82e6\u52b4\u3059\u308b\u7fbd\u76ee\u306b\u306a\u308b\u3067\u3057\u3087\u3046\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u672c\u7a3f\u3067\u306f\u4e3b\u306bSQL\u3068\u306e\u9055\u3044\u306b\u30d5\u30a9\u30fc\u30ab\u30b9\u3057CQL\u306e\u3067\u304d\u308b\u3053\u3068\u3001\u3067\u304d\u306a\u3044\u3053\u3068\u3092\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002Cassandra\u5c0e\u5165\u3092\u691c\u8a0e\u3057\u3066\u3044\u308b\u65b9\u3001\u6a5f\u80fd\u691c\u8a3c\u3092\u884c\u3063\u3066\u3044\u308b\u65b9\u306e\u4e00\u52a9\u3068\u306a\u308c\u3070\u5e78\u3044\u3067\u3059\u3002<\/ul>\n<h1>\u73af\u5883<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u672c\u7a3f\u306f\u4e0b\u8a18\u74b0\u5883\u3067\u306e\u691c\u8a3c\u306b\u57fa\u3065\u3044\u3066\u8a18\u8f09\u3057\u3066\u3044\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>Cassandra 3.11.0.1855<br \/>\nCQL spec 3.4.4<br \/>\ncqlsh 5.0.1<\/p>\n<h1>\u524d\u63d0\u7684\u9650\u5236\u4ec5\u9700\u4e00\u4e2a\u9009\u62e9<\/h1>\n<h3>\u793a\u4f8b\u8868\u683c<\/h3>\n<ul class=\"post-ul\">\u4ee5\u964d\u306e\u8aac\u660e\u3067\u8a18\u8f09\u3059\u308b\u6761\u4ef6\u53e5\u8a18\u8ff0\u4f8b\u306f\u3001\u4e0b\u8a18\u306e\u30c6\u30fc\u30d6\u30eb\u5b9a\u7fa9\u3092\u524d\u63d0\u3068\u3057\u307e\u3059\u3002<\/ul>\n<div>\n<div class=\"post-table\">\u30ab\u30e9\u30e0\u540d\u30c7\u30fc\u30bf\u578b\u5c5e\u6027PKINTPartition KeyCK1INTClustering ColumnCK2INTClustering ColumnMAP1MAPEntry Index\u4ed8\u4e0eMAP2MAP<br \/>\nVALUE1TEXTSecondary Index\u4ed8\u4e0eVALUE2TEXT<\/div>\n<\/div>\n<h1>\u9009\u62e9<\/h1>\n<h3>\u5173\u4e8eALLOW FILTERING\u7684\u4e00\u53e5\u8bdd\u3002<\/h3>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u8907\u6570\u306e\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u3092\u307e\u305f\u3050\u691c\u7d22\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u3068\u306a\u308b\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u3059\u3002\u5168\u884c\u30b9\u30ad\u30e3\u30f3\u304c\u8d70\u308a\u5927\u304d\u304f\u6027\u80fd\u304c\u52a3\u5316\u3059\u308b\u30ea\u30b9\u30af\u3092\u4f34\u3044\u307e\u3059\u3002ALLOW FILTERING\u53e5\u306f\u5b9f\u904b\u7528\u7684\u306b\u306f\u5229\u7528\u4e0d\u53ef\u304f\u3089\u3044\u306e\u611f\u899a\u3067\u53d7\u3051\u6b62\u3081\u3066\u304f\u3060\u3055\u3044\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u307e\u305fALLOW FILTERING\u4e0d\u8981\u306a\u30af\u30a8\u30ea\u304c\u9ad8\u901f\u3067\u3042\u308b\u3068\u306f\u5fc5\u305a\u3057\u3082\u9650\u308a\u307e\u305b\u3093\u3002\u672c\u7a3f\u306fCassandra\u306e\u62bd\u51fa\u30af\u30a8\u30ea\u306e\u30ea\u30d5\u30a1\u30ec\u30f3\u30b7\u30e3\u30eb\u306a\u60c5\u5831\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3092\u76ee\u7684\u3068\u3059\u308b\u305f\u3081\u8a73\u7d30\u306f\u5272\u611b\u3057\u307e\u3059\u304c\u3001Cassandra\u306e\u6027\u80fd\u3092\u4e07\u5168\u306b\u6d3b\u304b\u3059\u305f\u3081\u306b\u306f\u5185\u90e8\u69cb\u9020\u3092\u7406\u89e3\u3057\u3001\u30ce\u30fc\u30c9\u9593\u306e\u7269\u7406\u7684\u306aI\/O\u3092\u6700\u5c0f\u5316\u3059\u308b\u3088\u3046\u306a\u30af\u30a8\u30ea\u8a2d\u8a08\u304c\u5fc5\u8981\u3068\u306a\u308b\u3067\u3057\u3087\u3046\u3002<\/ul>\n<h2>\u4e0d\u80fd\u505a\u7684\u4e8b\u60c5 (B\u00f9 zu\u00f2 de sh\u00ec<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u307e\u305a\u306f\u3067\u304d\u306a\u3044\u3053\u3068\u3092\u304a\u3055\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002CQL\u3067\u306f\u4ee5\u4e0b\u306e\u69cb\u6587\u306f\u5229\u7528\u4e0d\u53ef\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>\u6761\u4ef6\u53e5<\/p>\n<p>!= \uff08\u975e\u7b49\u4fa1\uff09<br \/>\nNOT \uff08\u8ad6\u7406\u5426\u5b9a\uff09<br \/>\nOR \uff08\u8ad6\u7406\u548c\uff09<br \/>\nIS NULL\/ IS NOT NULL \uff08NULL\u6bd4\u8f03\uff09<\/p>\n<p>JOIN \uff08\u7d50\u5408\uff09<br \/>\nOFFSET \uff08\u76f8\u5bfe\u4f4d\u7f6e\u6307\u5b9a\uff09<\/p>\n<h2>\u53ef\u4ee5\u505a\u7684\u4e8b\u60c5<\/h2>\n<h3>=\uff08\u76f8\u7b49\uff09<\/h3>\n<ul class=\"post-ul\">\u539f\u5247\u3069\u306e\u30ab\u30e9\u30e0\u306b\u5bfe\u3057\u3066\u3082\u8a2d\u5b9a\u53ef\u80fd\u3067\u3059\u3002\u305f\u3060\u3057PK\u3092\u6307\u5b9a\u3057\u306a\u3044\u5834\u5408\u3084INDEX\u304c\u4ed8\u4e0e\u3055\u308c\u3066\u3044\u306a\u3044\u5217\u306b\u5bfe\u3059\u308b\u7b49\u4fa1\u6761\u4ef6\u306b\u306fALLOW FILTERING\u53e5\u3092\u4ed8\u4e0e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u70b9\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/ul>\n<div>\n<div class=\"post-table\">\u6761\u4ef6\u53e5\u8a18\u8ff0\u4f8bALLOW FILTERING\u5099\u8003where PK=1\u4e0d\u8981<br \/>\nwhere CK1=1\u8981CK\u5358\u72ec\u3067\u306e\u6761\u4ef6\u306e\u305f\u3081ALLOW FILTERING\u304c\u5fc5\u8981where PK=1 AND CK1=1\u4e0d\u8981PK\u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u305f\u3081ALLOW FILTERING\u306f\u4e0d\u8981where CK2=1\u8981<br \/>\nwhere PK=1 and CK2=1\u8981<br \/>\nwhere PK=1 and CK1=1 and CK2=1\u4e0d\u8981\u8907\u5408CK\u306e\u5f8c\u65b9\u30ab\u30e9\u30e0\u3092\u6761\u4ef6\u3068\u3059\u308b\u969b\u306b\u306fPK,CK1\u3092\u3042\u308f\u305b\u3066\u6761\u4ef6\u3068\u3059\u308b\u3053\u3068\u3067ALLOW FILTERING\u306e\u4ed8\u4e0e\u3092\u56de\u907f\u3067\u304d\u308bMAP1[&#8216;key&#8217;]=&#8217;V&#8217;\u4e0d\u8981Entry Index\u304c\u4ed8\u4e0e\u3055\u308c\u3066\u3044\u308b\u5217\u306f\u5358\u72ec\u30ab\u30e9\u30e0\u3067\u306e\u6761\u4ef6\u3067\u3042\u3063\u3066\u3082ALLOW FILTERING\u304c\u4e0d\u8981MAP1[&#8216;key&#8217;]=&#8217;V&#8217; and MAP1[&#8216;keyX&#8217;]=&#8217;X&#8217;\u8981Entry Index\u304c\u4ed8\u4e0e\u3055\u308c\u3066\u3044\u3066\u3082\u6761\u4ef6\u3092\u91cd\u306d\u308b\u3068ALLOW FILTERING\u304c\u5fc5\u8981MAP2[&#8216;key&#8217;]=&#8217;V&#8217;\u8981<br \/>\nVALUE1=&#8217;VAL&#8217;\u4e0d\u8981Secondary Index\u304c\u4ed8\u4e0e\u3055\u308c\u3066\u3044\u308b\u5217\u306f\u5358\u72ec\u30ab\u30e9\u30e0\u306e\u6761\u4ef6\u3067\u3042\u3063\u3066\u3082ALLOW FILTERING\u306f\u4e0d\u8981VALUE2=&#8217;VAL&#8217;\u8981<\/div>\n<\/div>\n<h3>&gt;\uff0c&lt;\uff0c&gt;=\uff0c&lt;=\uff08\u6bd4\u8f83\uff09<\/h3>\n<p>\u5927\u4e8e\uff0c\u5c0f\u4e8e\uff0c\u5927\u4e8e\u7b49\u4e8e\uff0c\u5c0f\u4e8e\u7b49\u4e8e\uff08\u5bf9\u6bd4\uff09<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u7b49\u4fa1\u3068\u307b\u307c\u540c\u69d8\u306e\u64cd\u4f5c\u304c\u53ef\u80fd\u3067\u3059\u3002\u305f\u3060\u3057Collection\u578b\u306b\u5bfe\u3059\u308b\u6bd4\u8f03\u6761\u4ef6\u306f\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002\u307e\u305fCK\u5217\u4ee5\u5916\u306e\u6bd4\u8f03\u6761\u4ef6\u306b\u306fALLOW FILTERING\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u4ed8\u4e0e\u304c\u5fc5\u8981\u3068\u306a\u308a\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u6982\u3057\u3066Cassandra\u306f\u7bc4\u56f2\u691c\u7d22\u3092\u82e6\u624b\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u7bc4\u56f2\u53d6\u5f97\u304c\u5fc5\u8981\u306a\u969b\u306b\u306fCK\u8a2d\u8a08\u306b\u7559\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/ul>\n<div>\n<div class=\"post-table\">\u6761\u4ef6\u53e5\u8a18\u8ff0\u4f8bALLOW FILTERING\u5099\u8003where PK&gt;1\u8981<br \/>\nwhere CK1&gt;1\u8981<br \/>\nwhere PK&gt;1 and CK1&gt;1\u8981<br \/>\nwhere PK=1 and CK1&gt;1\u4e0d\u8981PK\u3092\u6307\u5b9a\u3057\u305f\u4e0a\u3067\u306eCK\u306e\u6bd4\u8f03\u6761\u4ef6\u306fALLOW FILTERING\u304c\u4e0d\u8981where CK2&gt;1\u8981<br \/>\nwhere PK=1 and CK2&gt;1\u8981<br \/>\nwhere PK=1 and CK1=1 and CK2&gt;1\u4e0d\u8981\u8907\u5408CK\u306e\u5f8c\u65b9\u30ab\u30e9\u30e0\u3067\u306fPK,CK1\u304c\u7279\u5b9a\u3055\u308c\u305f\u5834\u5408\u306e\u307fALLOW FILTERING\u306a\u3057\u3067\u6bd4\u8f03\u6761\u4ef6\u304c\u53ef\u80fd\u3068\u306a\u308bwhere VALUE1&gt;&#8217;VAL&#8217;\u8981<br \/>\nwhere PK=1 and VALUE1&gt;&#8217;VAL&#8217;\u8981<br \/>\nwhere PK=1 and CK1=1 and VALUE1&gt;&#8217;V&#8217;\u8981<br \/>\nwhere PK=1 and CK1=1 and CK2=1 and VALUE1&gt;&#8217;V&#8217;\u8981<\/div>\n<\/div>\n<h3>\u5728<\/h3>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">in\u53e5\u306fPK,CK\u5217\u306b\u5bfe\u3057\u3066\u306e\u307f\u5229\u7528\u53ef\u80fd\u3067\u3059\u3002\u8907\u5408CK\u306e\u5834\u5408\u306b\u306f\u3055\u3089\u306b\u5229\u7528\u3067\u304d\u308b\u6761\u4ef6\u304c\u53b3\u3057\u304f\u306a\u308a\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u5b9f\u884c\u3067\u304d\u306a\u3044\u30b1\u30fc\u30b9\u304c\u82e5\u5e72\u308f\u304b\u308a\u306b\u304f\u3044\u305f\u3081\u3001\u4e0b\u8a18\u30c6\u30fc\u30d6\u30eb\u306b\u306f\u5b9f\u884c\u53ef\u5426\u5217\u3092\u8a2d\u3051\u5b9f\u884c\u3067\u304d\u306a\u3044\u3053\u3068\u3092\u660e\u793a\u3057\u3066\u3044\u307e\u3059<\/ul>\n<div>\n<div class=\"post-table\">\u6761\u4ef6\u53e5\u8a18\u8ff0\u4f8b\u5b9f\u884c\u53ef\u5426ALLOW FILTERING\u5099\u8003where PK in (1,2,3)\u25cb\u4e0d\u8981<br \/>\nwhere CK1 in (1,2,3)\u25cb\u8981<br \/>\nwhere PK=1 and CK1 in (1,2,3)\u25cb\u4e0d\u8981<br \/>\nwhere PK in (1,2,3) and CK1 in (1,2,3)\u25cb\u4e0d\u8981<br \/>\nwhere CK2 in (1,2,3)\u00d7n\/a<br \/>\nwhere PK=1 and CK2 in (1,2,3)\u00d7n\/a\u8907\u5408CK\u306e\u5f8c\u65b9\u30ab\u30e9\u30e0\u3067in\u53e5\u3092\u5229\u7528\u3059\u308b\u969b\u306b\u306fPK\u3001\u304a\u3088\u3073\u8907\u5408CK\u524d\u65b9\u30ab\u30e9\u30e0\u306e\u6761\u4ef6\u6307\u5b9a\u304c\u5fc5\u8981\u3068\u306a\u308bwhere PK=1 and CK1=1 and CK2 in (1,2,3)\u25cb\u4e0d\u8981<br \/>\nwhere PK in (1,2,3) and CK1 in (1,2,3) and CK2 in (1,2,3)\u25cb\u4e0d\u8981<\/div>\n<\/div>\n<h3>\u559c\u6b22<\/h3>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">CUSTOM INDEX\u3092\u4ed8\u4e0e\u3057\u305f\u5217\u306b\u5bfe\u3057\u3066\u306e\u307f\u53ef\u80fd\u3067\u3059\u3002PK\u3001CK\u306b\u306fCUSTOM INDEX\u3092\u4ed8\u4e0e\u3067\u304d\u306a\u3044\u3053\u3068\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">CUSTOM INDEX\u3092\u30ab\u30e9\u30e0VALUE2\u306b\u4ed8\u4e0e\u3059\u308b\u5834\u5408\u306e\u4f8b\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/ul>\n<pre class=\"post-pre\"><code>CREATE CUSTOM INDEX SAMPLE_IDX ON SAMPLE (VALUE2) USING 'org.apache.cassandra.index.sasi.SASIIndex' WITH OPTIONS = {'analyzer class': 'org.apache.cassandra.index.sasi.analyzer.NonTokenizingAnalyzer', 'case_sensitive': 'false', 'mode': 'CONTAINS', 'analyzed': 'true'};\r\n<\/code><\/pre>\n<div>\n<div class=\"post-table\">\u6761\u4ef6\u53e5\u8a18\u8ff0\u4f8bALLOW FILTERING\u5099\u8003where VALUE4 like &#8216;%VAL%&#8217;\u4e0d\u8981<\/div>\n<\/div>\n<h3>\u6309\u7167\u987a\u5e8f\u6392\u5217<\/h3>\n<ul class=\"post-ul\">\u975e\u5e38\u306b\u9650\u3089\u308c\u305f\u5217\u306b\u5bfe\u3057\u3066\u306e\u307f\u30bd\u30fc\u30c8\u6307\u5b9a\u304c\u53ef\u80fd\u3067\u3059\u3002PK\u304c\u7279\u5b9a\u3067\u304d\u308b\u3053\u3068\u3001\u304b\u3064CK\uff08\u8907\u5408CK\u306e\u5834\u5408\u306f\u6700\u524d\u65b9\u30ab\u30e9\u30e0\uff09\u3067\u3042\u308b\u3053\u3068\u304c\u30bd\u30fc\u30c8\u6307\u5b9a\u53ef\u80fd\u306a\u5217\u306e\u6761\u4ef6\u3068\u306a\u308a\u307e\u3059\u3002<\/ul>\n<div>\n<div class=\"post-table\">\u6761\u4ef6\u53e5\u8a18\u8ff0\u4f8b\u5b9f\u884c\u53ef\u5426\u5099\u8003order by PK\u00d7<br \/>\norder by CK1\u00d7<br \/>\nwhere PK=1 order by CK1\u25cb<br \/>\nwhere PK in (1,2,3) order by CK1\u25cbcqlsh\u304b\u3089\u5b9f\u884c\u306e\u969b\u306b\u306fpaging off;\u304c\u5fc5\u8981\u3067\u3059order by CK2\u00d7<br \/>\nwhere PK=1 order by CK2\u00d7<br \/>\nwhere PK=1 and CK1=1 order by CK2\u00d7<\/div>\n<\/div>\n<h3>\u6309\u7ec4\u8fdb\u884c\u5206\u7ec4<\/h3>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">CQL\u3067\u306fPK\u5217\u3067\u306e\u30b0\u30eb\u30fc\u30d7\u5316\u3001PK\u3092\u6307\u5b9a\u3057\u305f\u4e0a\u3067\u306eCK\u5217\u3067\u306e\u30b0\u30eb\u30fc\u30d7\u5316\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u307e\u305f\u3001\u6a19\u6e96\u96c6\u8a08\u95a2\u6570\u3068\u3057\u3066\u3001min, max, avg, sum, count\u304c\u4f7f\u7528\u53ef\u80fd\u3067\u3059\u3002<\/ul>\n<div>\n<div class=\"post-table\">\u6761\u4ef6\u53e5\u8a18\u8ff0\u4f8b\u5b9f\u884c\u53ef\u5426\u5099\u8003group by PK\u25cb<br \/>\ngroup by CK1\u00d7<br \/>\nwhere PK=1 group by CK1\u25cb<br \/>\ngroup by CK2\u00d7<br \/>\nwhere PK=1 group by CK2\u00d7<br \/>\nwhere PK=1 and CK1=1 group by CK2\u00d7<\/div>\n<\/div>\n<h3>\u9650\u5236<\/h3>\n<ul class=\"post-ul\">limit\u53e5\u306b\u3088\u308b\u53d6\u5f97\u4ef6\u6570\u3092\u6307\u5b9a\u3057\u305f\u554f\u3044\u5408\u308f\u305b\u304c\u53ef\u80fd\u3067\u3059\u3002<\/ul>\n<h1>\u6700\u540e<\/h1>\n<p>\u6211\u5df2\u7ecf\u7b80\u5355\u603b\u7ed3\u4e86CQL\u7684\u529f\u80fd\u548c\u9650\u5236\uff0c\u4f46\u4f3c\u4e4e\u6709\u4e00\u4e9b\u6697\u793a\u7740\u9ad8\u7ea7\u7528\u6cd5\u7684\u6c1b\u56f4&#8230;<\/p>\n<p>\u5728Cassandra\u4e2d\uff0c\u9664\u4e86\u4e3b\u952e\uff08PK\uff09\u548c\u805a\u7c07\u952e\uff08CK\uff09\u4e4b\u5916\u7684\u5217\u4e0d\u5efa\u8bae\u8fdb\u884c\u7b49\u503c\u641c\u7d22\uff0c\u4f46\u5728\u5b9e\u9645\u4e1a\u52a1\u4e2d\u53ef\u80fd\u4f1a\u4e0d\u5f97\u4e0d\u5bf9\u9664\u4e86PK\u548cCK\u5217\u4ee5\u5916\u7684\u5217\u8fdb\u884c\u641c\u7d22\u3002<\/p>\n<p>\u8bf7\u5728\u7406\u89e3\u67e5\u8be2\u8868\u8fbe\u5f0f\u9650\u5236\u548c\u4f7f\u7528ALLOW FILTERING\u7684\u98ce\u9669\u7684\u57fa\u7840\u4e0a\uff0c\u52aa\u529b\u5728\u6ee1\u8db3\u8981\u6c42\uff08\u6027\u80fd\u3001\u6269\u5c55\u6027\u3001\u53ef\u7528\u6027\uff09\u7684\u540c\u65f6\u505a\u51fa\u6743\u8861\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u592a\u957f\u4e0d\u770b CQL\u306f\u4e00\u898bSQL\u3068\u540c\u3058\u69cb\u6587\u3060\u304c\u610f\u5916\u3068\u5b9f\u73fe\u3067\u304d\u306a\u3044\u3053\u3068\u304c\u591a\u3044 &nbsp; \u5236\u9650\u3092\u3057\u3063\u304b\u308a\u7406\u89e3\u3057\u305f\u4e0a [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-50183","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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