{"id":7336,"date":"2015-05-22T13:00:15","date_gmt":"2015-05-22T04:00:15","guid":{"rendered":"http:\/\/www.techscore.com\/blog\/?p=7336"},"modified":"2018-11-14T16:33:48","modified_gmt":"2018-11-14T07:33:48","slug":"fushigi_view","status":"publish","type":"post","link":"https:\/\/www.techscore.com\/blog\/2015\/05\/22\/fushigi_view\/","title":{"rendered":"\u898b\u308b\u4eba\u306b\u3088\u3063\u3066\u7d50\u679c\u306e\u5909\u308f\u308b\u4e0d\u601d\u8b70\u306a\u30d3\u30e5\u30fc\u3067\u3001\u5468\u308a\u3092\u9a5a\u304b\u305b\u3061\u3083\u304a\u3046"},"content":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\u3001\u4e09\u82eb\u3067\u3059\u3002<\/p>\n<p>\u6642\u3005\u3001\u8907\u96d1\u306a\u30b7\u30b9\u30c6\u30e0\u3092\u30ea\u30ea\u30fc\u30b9\u3059\u308b\u3068\u304d\u65b0\u65e7\u4e21\u65b9\u306e\u30b7\u30b9\u30c6\u30e0\u3092\u540c\u6642\u306b\u7a3c\u50cd\u3057\u7d9a\u3051\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3068\u3044\u3046\u72b6\u6cc1\u306b\u9665\u308b\u3053\u3068\u3001\u3042\u308a\u307e\u3059\u3088\u306d\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001\u305d\u306e\u30b7\u30b9\u30c6\u30e0\u306f\u8a2d\u5b9a\u30de\u30b9\u30bf\u307f\u305f\u3044\u306a\u30c6\u30fc\u30d6\u30eb\u304c\u3042\u3063\u3066\u3001\u30b7\u30b9\u30c6\u30e0\u306f\u305d\u306e\u8a2d\u5b9a\u5024\u3092\u8aad\u3093\u3067\u7a3c\u50cd\u3059\u308b\u3068\u3044\u3046\u4e8b\u3082\u3001\u3042\u308a\u307e\u3059\u3088\u306d\u3002<\/p>\n<p>\u3055\u3089\u306b\u3055\u3089\u306b\u3001\u65b0\u3057\u3044\u30b7\u30b9\u30c6\u30e0\u3068\u53e4\u3044\u30b7\u30b9\u30c6\u30e0\u3067\u3001\u540c\u3058\u8a2d\u5b9a\u30de\u30b9\u30bf\u306e\u540c\u3058\u30ec\u30b3\u30fc\u30c9\u3092\u8aad\u307e\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u3044\u3093\u3060\u3051\u3069\u65b0\u3057\u3044\u30b7\u30b9\u30c6\u30e0\u3068\u53e4\u3044\u30b7\u30b9\u30c6\u30e0\u3067\u5225\u306e\u5024\u3058\u3083\u306a\u3044\u3068\u52d5\u304b\u306a\u3044\u30fb\u30fb\u30fb\u306a\u3093\u3066\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3088\u306d\u3002<\/p>\n<p>\u3055\u3089\u306b\u3055\u3089\u306b\u3055\u3089\u306b\u3001\u305d\u3046\u3044\u3046\u5834\u5408\u305f\u3044\u3066\u3044\u306f\u65b0\u3057\u3044\u30b7\u30b9\u30c6\u30e0\u306e\u307b\u3046\u306f\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u6539\u4fee\u3057\u3066\u305d\u306e\u554f\u984c\u3092\u56de\u907f\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u306e\u304c\u7b4b\u306a\u3093\u3060\u3051\u3069\u3001\u8a72\u5f53\u7b87\u6240\u306e\u4fee\u6b63\u3092\u3059\u308b\u3068\u30b7\u30b9\u30c6\u30e0\u306e\u518d\u30c6\u30b9\u30c8\u5de5\u6570\u304c\u81a8\u5927\u306b\u306a\u308a\u73fe\u5b9f\u7684\u3067\u306f\u306a\u3044\u3068\u3044\u3046\u30b1\u30fc\u30b9\u3082\u6ce3\u304d\u305f\u3044\u307b\u3069\u591a\u3044\u3067\u3059\u3088\u306d\u3002<\/p>\n<p>\u203b\u5b9f\u969b\u306b\u306f\u305d\u3093\u306a\u306b\u591a\u304f\u306a\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<h2>\u8981\u4ef6<\/h2>\n<ul>\n<li>\u65b0\u30b7\u30b9\u30c6\u30e0\u3068\u65e7\u30b7\u30b9\u30c6\u30e0\u3067\u540c\u3058\u30af\u30a8\u30ea\u3092\u767a\u884c\u3057\u3001\u540c\u3058\u30ec\u30b3\u30fc\u30c9\u3092\u898b\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/li>\n<li>\u305f\u3060\u3057\u3001\u65e7\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u300cX\u300d\u3068\u3044\u3046\u5024\u3092\u53d7\u3051\u53d6\u308a\u3001\u65b0\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u300cY\u300d\u3068\u3044\u3046\u5024\u3092\u53d7\u3051\u53d6\u308c\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/li>\n<li>\u63a5\u7d9a\u30e6\u30fc\u30b6\u540d\u306f\u5909\u3048\u308b\u3053\u3068\u306f\u3067\u304d\u306a\u3044\u3002<\/li>\n<li>\u65b0\u30b7\u30b9\u30c6\u30e0\u3068\u65e7\u30b7\u30b9\u30c6\u30e0\u3067\u30b5\u30fc\u30d0\u30fc\u306eIP\u306f\u7570\u306a\u308b\u3002<\/li>\n<li>\u30b7\u30b9\u30c6\u30e0\u306e RDBMS \u306f PostgreSQL \u3068\u3059\u308b\u3002<\/li>\n<\/ul>\n<p>\u3064\u307e\u308a\u3001\u7c21\u5358\u306b\u8a00\u3046\u3068\u3053\u3046\u3044\u3046\u4e8b\u3002<\/p>\n<div style=\"width: 410px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" class=\"\" src=\"https:\/\/cacoo.com\/diagrams\/RcTjofkAd0y4ei0d-822B1.png\" alt=\"\u4f55\u3092\u8a00\u3063\u3066\u3044\u308b\u306e\u304b\" width=\"400\" height=\"341\" \/><p class=\"wp-caption-text\">\u671f\u5f85\u3059\u308b\u52d5\u304d<\/p><\/div>\n<p>\u3067\u304d\u308b\u304b\u306a\uff5e\u3002<\/p>\n<h2>\u5b9f\u73fe\u65b9\u6cd5<\/h2>\n<p>\u307e\u305a\u3082\u3068\u3082\u3068\u306e\u8a2d\u5b9a\u30c6\u30fc\u30d6\u30eb\u306e\u521d\u671f\u72b6\u614b\u3092\u4ee5\u4e0b\u3068\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\" title=\"\u30aa\u30ea\u30b8\u30ca\u30eb\u306e\u8a2d\u5b9a\u30c6\u30fc\u30d6\u30eb\">-- \u30aa\u30ea\u30b8\u30ca\u30eb\u306e\u8a2d\u5b9a\u30c6\u30fc\u30d6\u30eb\r\nCREATE TABLE \u8a2d\u5b9a\u5024\u30de\u30b9\u30bf (\r\n  \u8a2d\u5b9a\u540d TEXT PRIMARY KEY,\r\n  \u8a2d\u5b9a\u5024 TEXT NOT NULL\r\n);\r\nINSERT INTO \u8a2d\u5b9a\u5024\u30de\u30b9\u30bf (\u8a2d\u5b9a\u540d, \u8a2d\u5b9a\u5024) VALUES ('\u6240\u5728\u5730', '\u5927\u962a\u5e9c');<\/pre>\n<p>\u7269\u7406\u30c6\u30fc\u30d6\u30eb\u306e\u307e\u307e\u3067\u306f\u8981\u4ef6\u3092\u6e80\u305f\u3059\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u306e\u3067\u3001VIEW\u306b\u3057\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3053\u3068\u306f\u3059\u3050\u306b\u601d\u3044\u3064\u304d\u307e\u3059\u3002\u3051\u308c\u3069\u3001VIEW\u306b\u3057\u305f\u3068\u3053\u308d\u3067\u63a5\u7d9a\u5143\u3092\u6761\u4ef6\u306b\u52a0\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u3068\u7d50\u679c\u3092\u51fa\u3057\u308f\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u3057\u304b\u3057PostgreSQL\u306f\u8a71\u306e\u5206\u304b\u308b\u3084\u3064\u3067\u3059\u3002 inet_client_addr() \u3092\u4f7f\u3046\u3053\u3068\u3067\u30ea\u30e2\u30fc\u30c8\u63a5\u7d9a\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3053\u308c\u3092\u6761\u4ef6\u306b\u4f7f\u3048\u305d\u3046\u3067\u3059\u3002<br \/>\n<a href=\"https:\/\/www.postgresql.jp\/document\/9.4\/html\/functions-info.html\">https:\/\/www.postgresql.jp\/document\/9.4\/html\/functions-info.html<\/a><\/p>\n<p>\u5927\u4f53\u3053\u3093\u306a\u98a8\u306b\u3057\u305f\u3089\u3044\u3051\u308b\u3093\u3058\u3083\u306a\u3044\u304b\u306a\uff1fUNION ALL \u306e\u3068\u3053\u308d\u304c\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u306d\u3002<\/p>\n<pre class=\"lang:default decode:true\" title=\"\u4e0d\u601d\u8b70\u306a\u30d3\u30e5\u30fc\">-- \u65e7\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u53c2\u7167\u3057\u305f\u3044\u5024\u306e\u5165\u3063\u3066\u3044\u308b\u30c6\u30fc\u30d6\u30eb\r\nCREATE TABLE \u8a2d\u5b9a\u5024\u30de\u30b9\u30bf_OLD (\r\n  \u8a2d\u5b9a\u540d TEXT PRIMARY KEY,\r\n  \u8a2d\u5b9a\u5024 TEXT NOT NULL\r\n);\r\nINSERT INTO \u8a2d\u5b9a\u5024\u30de\u30b9\u30bf_OLD (\u8a2d\u5b9a\u540d, \u8a2d\u5b9a\u5024) VALUES ('\u6240\u5728\u5730', '\u5927\u962a\u5e9c');\r\n\r\n-- \u65b0\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u53c2\u7167\u3057\u305f\u3044\u5024\u306e\u5165\u3063\u3066\u3044\u308b\u30c6\u30fc\u30d6\u30eb\r\nCREATE TABLE \u8a2d\u5b9a\u5024\u30de\u30b9\u30bf_NEW (\r\n  \u8a2d\u5b9a\u540d TEXT PRIMARY KEY,\r\n  \u8a2d\u5b9a\u5024 TEXT NOT NULL\r\n);\r\nINSERT INTO \u8a2d\u5b9a\u5024\u30de\u30b9\u30bf_NEW (\u8a2d\u5b9a\u540d, \u8a2d\u5b9a\u5024) VALUES ('\u6240\u5728\u5730', '\u5927\u962a\u90fd');\r\n\r\n-- \u4e0a\u8a182\u30c6\u30fc\u30d6\u30eb\u3092 inet_client_addr() \u306e\u5024\u306b\u3088\u3063\u3066\u5207\u308a\u66ff\u3048\u308b\u4e0d\u601d\u8b70\u306a\u30d3\u30e5\u30fc\r\nCREATE OR REPLACE VIEW \u8a2d\u5b9a\u5024\u30de\u30b9\u30bf AS\r\nSELECT \u8a2d\u5b9a\u540d, \u8a2d\u5b9a\u5024\r\nFROM (\r\n       -- inet_client_addr() \u306b\u3088\u3063\u3066\u53c2\u7167\u3059\u308b\u30c6\u30fc\u30d6\u30eb\u3092\u5207\u308a\u66ff\u3048\u308b\r\n       SELECT \u8a2d\u5b9a\u540d, \u8a2d\u5b9a\u5024 FROM \u8a2d\u5b9a\u5024\u30de\u30b9\u30bf_OLD WHERE inet_client_addr() = '192.168.0.1'\r\n       UNION ALL\r\n       SELECT \u8a2d\u5b9a\u540d, \u8a2d\u5b9a\u5024 FROM \u8a2d\u5b9a\u5024\u30de\u30b9\u30bf_NEW WHERE inet_client_addr() = '192.168.10.1'\r\n     ) FUSHIGI;<\/pre>\n<p>\u3053\u308c\u3067\u63a5\u7d9a\u5143\u306b\u3088\u3063\u3066\u7d50\u679c\u304c\u5909\u308f\u308b\u3068\u3044\u3046\u4f55\u3068\u3082\u4e0d\u601d\u8b70\u306a\u30d3\u30e5\u30fc\u304c\u5b8c\u6210\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u30c6\u30b9\u30c8\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:default decode:true \" title=\"\u5b9f\u884c\u7d50\u679c\">-- 192.168.0.1 \u304b\u3089\u63a5\u7d9a\u3057\u3066\u5b9f\u884c\r\npostgres=# select * from \u8a2d\u5b9a\u5024\u30de\u30b9\u30bf;\r\n \u8a2d\u5b9a\u540d | \u8a2d\u5b9a\u5024\r\n--------+--------\r\n \u6240\u5728\u5730 | \u5927\u962a\u5e9c\r\n\r\n-- 192.168.10.1 \u304b\u3089\u63a5\u7d9a\u3057\u3066\u5b9f\u884c\r\npostgres=# select * from \u8a2d\u5b9a\u5024\u30de\u30b9\u30bf;\r\n \u8a2d\u5b9a\u540d | \u8a2d\u5b9a\u5024\r\n--------+--------\r\n \u6240\u5728\u5730 | \u5927\u962a\u90fd\r\n<\/pre>\n<p>\u3059\u3054\u3044\uff01\u63a5\u7d9a\u5143\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u3088\u3063\u3066\u7d50\u679c\u304c\u5909\u308f\u3063\u3066\u307e\u3059\u306d\uff01<br \/>\n\u3053\u308c\u3067\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u6539\u4fee\u305b\u305a\u306b\u30ea\u30ea\u30fc\u30b9\u3067\u304d\u308b\uff01<\/p>\n<h2>\u5b9f\u73fe\u306f\u3067\u304d\u305f\u3051\u3069<\/h2>\n<p>\u3068\u3001\u3053\u3053\u307e\u3067\u5b9f\u73fe\u65b9\u6cd5\u3092\u8003\u3048\u305f\u306e\u306f\u3044\u3044\u306e\u3067\u3059\u304c\u300c\u304a\u3001\u304a\u304b\u3057\u3044\uff01\u3053\u306e\u30c6\u30fc\u30d6\u30eb\u63a5\u7d9a\u3059\u308b\u30b5\u30fc\u30d0\u30fc\u306b\u3088\u3063\u3066SELECT\u7d50\u679c\u304c\u5909\u308f\u308b\uff01\uff1f\u30bf\u30b9\u30b1\u30c6\uff01\uff01\u300d\u307f\u305f\u3044\u306a\u306f\u307e\u308a\u65b9\u3092\u3059\u308b\u540c\u50da\u306e\u59ff\u3057\u304b\u601d\u3044\u6d6e\u304b\u3070\u306a\u304b\u3063\u305f\u3053\u3068\u3082\u3042\u308a\u3001\u3053\u306e\u65b9\u5f0f\u3092\u63a1\u7528\u3059\u308b\u306e\u306f(\u79c1\u306e\u793e\u5185\u306e\u8a55\u5224\u7684\u306b)\u30ea\u30b9\u30af\u304c\u5927\u304d\u304b\u3063\u305f\u305f\u3081\u65ad\u5ff5\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u307f\u3093\u306a\u304c\u601d\u3044\u3064\u304b\u306a\u304b\u3063\u305f\u30c8\u30ea\u30c3\u30ad\u30fc\u306a\u6280\u3067\u7269\u4e8b\u3092\u89e3\u6c7a\u3059\u308b\u306e\u306f\u3044\u3064\u3060\u3063\u3066\u697d\u3057\u3044\u3053\u3068\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u305d\u306e\u9a5a\u304d\u304c\u30c1\u30fc\u30e0\u306e\u6df7\u4e71\u3001\u6012\u308a\u306b\u5909\u308f\u3089\u306a\u3044\u304b\u3069\u3046\u304b\u3092\u898b\u6975\u3081\u308b\u3053\u3068\u3082\u5927\u5207\u3067\u3059\u3002<\/p>\n<p>\u79c1\u306f\u300cPostgreSQL\u3001\u3084\u3063\u3071\u308a\u30b9\u30b2\u30fc\u305c\u300d\u3068\u3044\u3046\u306f\u3066\u30d6\u304c\u4e00\u3064\u3067\u3082\u3064\u3051\u3070\u3001\u305d\u308c\u3060\u3051\u3067\u6e80\u8db3\u3067\u3059\u3002\u3080\u3057\u308d\u305d\u308c\u3060\u3051\u304c\u4eca\u56de\u306e\u8a18\u4e8b\u306e\u52dd\u5229\u6761\u4ef6\u3067\u3059\u3002<\/p>\n<p>\u203bMySQL\u3067\u3082 user() \u304c user@hostname \u3092\u8fd4\u3059\u306e\u3067\u540c\u3058\u3053\u3068\u3092\u5b9f\u73fe\u3067\u304d\u308b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u4ee5\u4e0a\u3001\u65b0\u65e7\u30b7\u30b9\u30c6\u30e0\u6df7\u5728\u65b9\u6cd5\u691c\u8a0e\u4f1a\u306e\u73fe\u5834\u304b\u3089\u304a\u9001\u308a\u3057\u307e\u3057\u305f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\u3001\u4e09\u82eb\u3067\u3059\u3002<\/p>\n<p>\u6642\u3005\u3001\u8907\u96d1\u306a\u30b7\u30b9\u30c6\u30e0\u3092\u30ea\u30ea\u30fc\u30b9\u3059\u308b\u3068\u304d\u65b0\u65e7\u4e21\u65b9\u306e\u30b7\u30b9\u30c6\u30e0\u3092\u540c\u6642\u306b\u7a3c\u50cd\u3057\u7d9a\u3051\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3068\u3044\u3046\u72b6\u6cc1\u306b\u9665\u308b\u3053\u3068\u3001\u3042\u308a\u307e\u3059\u3088\u306d\u3002<br \/><a href=\"https:\/\/www.techscore.com\/blog\/2015\/05\/22\/fushigi_view\/\">\u7d9a\u304d\u3092\u8aad\u3080...<\/a><\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[18],"tags":[206],"_links":{"self":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/7336"}],"collection":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/comments?post=7336"}],"version-history":[{"count":12,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/7336\/revisions"}],"predecessor-version":[{"id":7370,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/7336\/revisions\/7370"}],"wp:attachment":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/media?parent=7336"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/categories?post=7336"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/tags?post=7336"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}