{"id":9200,"date":"2015-12-16T09:00:14","date_gmt":"2015-12-16T00:00:14","guid":{"rendered":"http:\/\/www.techscore.com\/blog\/?p=9200"},"modified":"2018-11-14T16:33:46","modified_gmt":"2018-11-14T07:33:46","slug":"postgresql-fdw-%e3%82%92%e4%bd%9c%e3%81%a3%e3%81%a6sql%e3%81%a7%e3%83%ad%e3%82%b0%e6%a4%9c%e7%b4%a2%e3%81%97%e3%81%a6%e3%81%bf%e3%81%9f","status":"publish","type":"post","link":"https:\/\/www.techscore.com\/blog\/2015\/12\/16\/postgresql-fdw-%e3%82%92%e4%bd%9c%e3%81%a3%e3%81%a6sql%e3%81%a7%e3%83%ad%e3%82%b0%e6%a4%9c%e7%b4%a2%e3%81%97%e3%81%a6%e3%81%bf%e3%81%9f\/","title":{"rendered":"PostgreSQL FDW \u3092\u4f5c\u3063\u3066SQL\u3067\u30ed\u30b0\u691c\u7d22\u3057\u3066\u307f\u305f"},"content":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\u3001\u5bfa\u5ca1\u3067\u3059\u3002<br \/>\n\u3053\u308c\u306f <a href=\"\/blog\/2015\/11\/30\/techscore-advent-calendar-2015\/\">TECHSCORE Advent Calendar 2015<\/a>  \u306e16\u65e5\u76ee\u306e\u8a18\u4e8b\u3067\u3059\u3002<\/p>\n<h2>\u30b7\u30a7\u30eb\u82b8\u4eba\u3078\u306e\u9053\u306e\u308a\u306f\u967a\u3057\u3044<\/h2>\n<p>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u904b\u7528\u696d\u52d9\u3067\u306f\u65e5\u3005\u5165\u3063\u3066\u304f\u308b\u554f\u3044\u5408\u308f\u305b\u306b\u5fdc\u3048\u308b\u305f\u3081\u3001\u30ed\u30b0\u304c\u4e26\u3093\u3060\u30b3\u30f3\u30bd\u30fc\u30eb\u3068\u7768\u3081\u3063\u3053\u3059\u308b\u6642\u9593\u306f\u6c7a\u3057\u3066\u77ed\u304f\u3042\u308a\u307e\u305b\u3093\u3002<br \/>\n\u6bce\u56de grep, cut, uniq \u306b sed \u3084 awk \u306a\u3093\u304b\u3082\u99c6\u4f7f\u3057\u3066\u30ed\u30b0\u8abf\u67fb\u3092\u3059\u308b\u3053\u3068\u306b\u306a\u308b\u308f\u3051\u306a\u306e\u3067\u3059\u304c\u3001\u3053\u308c\u304c\u306a\u304b\u306a\u304b\u5927\u5909\u306a\u308f\u3051\u3067\u2026\u2026\u3002<\/p>\n<p>\u719f\u7df4\u306e\u6280\u8853\u8005\u306f\u9a5a\u7570\u7684\u306a\u30b7\u30a7\u30eb\u82b8\u3092\u99c6\u4f7f\u3057\u3066\u76ee\u7684\u306e\u30c7\u30fc\u30bf\u3092\u30b6\u30af\u30b6\u30af\u3068\u91e3\u308a\u4e0a\u3052\u3066\u304f\u308b\u306e\u3082\u306e\u3067\u3059\u304c\u3001<br \/>\n\u305d\u3093\u306a\u30a2\u30af\u30ed\u30d0\u30c6\u30a3\u30c3\u30af\u306a\u8077\u4eba\u6280\u306f\u4e00\u671d\u4e00\u5915\u3067\u306b\u8eab\u306b\u3064\u304f\u3082\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u305d\u3093\u306a\u6642\u3001\u30a2\u30d7\u30ea\u30a8\u30f3\u30b8\u30cb\u30a2\u306a\u3089\u3053\u3046\u601d\u3046\u308f\u3051\u3067\u3059\u3002<br \/>\n\u300c\u55da\u547c\u3001\u3053\u306e\u4f5c\u696d\u304c SQL \u3067\u51fa\u6765\u308c\u3070\u4ffa\u3060\u3063\u3066\u2026\u2026\u300d<\/p>\n<p>\u305d\u3093\u306a\u671b\u307f\u3092\u53f6\u3048\u308b\u305f\u3081\u306b\u306f\u3001 Fluentd \u306a\u3069\u3092\u4f7f\u3063\u3066\u30ed\u30b0\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u3066\u2026\u2026\u3068\u3044\u3046\u306e\u304c\u738b\u9053\u3067\u3057\u3087\u3046\u3002<br \/>\n\u3067\u3082\u3001\u4eca\u56de\u306f\u3082\u3063\u3068\u30ab\u30b8\u30e5\u30a2\u30eb\u306b\u751f\u30ed\u30b0\u304b\u3089\u691c\u7d22\u3059\u308b\u65b9\u6cd5\u3092\u8a66\u3057\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n<h2>PostgreSQL FDW<\/h2>\n<p>  \u4eca\u56de\u3001\u30ed\u30b0\u691c\u7d22\u306b\u306fPostgreSQL\u306e Foreign Data Wrapper\uff08\u4ee5\u964dFDW\uff09\u3068\u3044\u3046\u6a5f\u80fd\u3092\u5229\u7528\u3057\u307e\u3059\u3002<br \/>\n  FDW \u306f PostgreSQL9.1 \u304b\u3089\u642d\u8f09\u3055\u308c\u305f\u6a5f\u80fd\u3067\u3001\u65e5\u672c\u8a9e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3067\u306f\u300c\u5916\u90e8\u30c7\u30fc\u30bf\u30e9\u30c3\u30d1\u300d\u3068\u8a33\u3055\u308c\u3066\u304a\u308a\u3001PostgreSQL \u30b5\u30fc\u30d0\u5916\u90e8\u306e\u30c7\u30fc\u30bf\u3092\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5185\u306e\u4eee\u60f3\u7684\u306a\u30c6\u30fc\u30d6\u30eb\u3068\u3057\u3066\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>  PostgreSQL9.3 \u304b\u3089\u306f <a href=\"https:\/\/www.postgresql.jp\/document\/9.4\/html\/postgres-fdw.html\">postgres_fdw<\/a> \u3068\u3044\u3046\u30e2\u30b8\u30e5\u30fc\u30eb\u304c\u6a19\u6e96\u3067\u7d44\u307f\u8fbc\u307e\u308c\u3066\u304a\u308a\u3001<br \/>\n  \u5225\u30b5\u30fc\u30d0\u306b\u3042\u308b PostgreSQL \u306e\u30c6\u30fc\u30d6\u30eb\u3092\u3042\u305f\u304b\u3082\u30ed\u30fc\u30ab\u30ebDB\u306b\u5b58\u5728\u3059\u308b\u304b\u306e\u3088\u3046\u306b\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\n  \u307e\u305f\u3001FDW \u30e2\u30b8\u30e5\u30fc\u30eb\u304c\u5bfe\u5fdc\u3057\u3066\u3044\u308c\u3070\u3001SELECT \u3060\u3051\u3067\u306f\u306a\u304f INSERT\u3001UPDATE\u3001DELETE \u306b\u52a0\u3048\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306b\u3082\u5bfe\u5fdc\u3068\u3044\u3046\u9ad8\u6a5f\u80fd\u3063\u3077\u308a\u3067\u3001\u3082\u3061\u308d\u3093 postgres_fdw \u306f\u3053\u308c\u3089\u306b\u5168\u3066\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>  \u3055\u3089\u306b\u51c4\u3044\u306e\u306f\u3001FDW\u3067\u64cd\u4f5c\u3067\u304d\u308b\u306e\u306fPostgreSQL\u3060\u3051\u3067\u306f\u306a\u3044\u70b9\u3067\u3059\u3002<br \/>\n  \u3053\u3061\u3089\u306e<a href=\"https:\/\/wiki.postgresql.org\/wiki\/Foreign_data_wrappers\">\u516c\u5f0fWiki<\/a>\u306b\u3042\u308b\u3088\u3046\u306b\u3001\u69d8\u3005\u306a FDW \u30e2\u30b8\u30e5\u30fc\u30eb\u304c\u516c\u958b\u3055\u308c\u3066\u304a\u308a\u3001<br \/>\n  MySQL\u3084Oracle\u306f\u3082\u3061\u308d\u3093\u3001MongoDB \u3084 Redis \u3068\u3044\u3063\u305f NoSQLDB \u3001\u3055\u3089\u306b\u306f CSV \u3084 Twitter \u307e\u3067 PostgreSQL \u3067\u64cd\u4f5c\u3067\u304d\u3066\u3057\u307e\u3046\u306e\u3067\u3059\u3002<\/p>\n<h2>\u4f5c\u3063\u3066\u307f\u305f<\/h2>\n<p>  \u4eca\u56de\u306f\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u304b\u3089\u4efb\u610f\u306e\u6b63\u898f\u8868\u73fe\u3067\u30d1\u30fc\u30b9\u3057\u305f\u30c7\u30fc\u30bf\u3092\u6271\u3046\u305f\u3081\u306e\u3001 <a href=\"https:\/\/github.com\/yuki-teraoka\/logfile_fdw\">logfile_fdw<\/a> \u3068\u3044\u3046 FDW \u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u4f5c\u6210\u3057\u3066\u307f\u307e\u3057\u305f\u3002<br \/>\n  \u672c\u6765 FDW \u306fC\u8a00\u8a9e\u3067\u5b9f\u88c5\u3059\u308b\u3082\u306e\u3067\u3059\u304c\u3001 <a href=\"http:\/\/multicorn.org\/\">Multicorn<\/a> \u3068\u3044\u3046\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u5229\u7528\u3059\u308c\u3070\u3001 Python \u3092\u4f7f\u3063\u3066\u3068\u3066\u3082\u7c21\u5358\u306b\u5b9f\u88c5\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\n  \u3069\u306e\u304f\u3089\u3044\u7c21\u5358\u304b\u3068\u3044\u3046\u3068\u3001\u521d\u3081\u3066 Python \u3092\u66f8\u3044\u305f\u7b46\u8005\u304c\u6570\u6642\u9593\u3067\u5b9f\u88c5\u3067\u304d\u3066\u3057\u307e\u3046\u304f\u3089\u3044\u7c21\u5358\u3067\u3059\u3002<br \/>\n  \uff08 FDW \u306e\u4f5c\u308a\u65b9\u306b\u3064\u3044\u3066\u306f\u307e\u305f\u5f8c\u65e5\u3054\u7d39\u4ecb\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\uff09<\/p>\n<h2>\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/h2>\n<p>\u307e\u305a\u306f\u3001\u524d\u6e96\u5099\u3068\u3057\u3066\u30ed\u30b0\u304c\u4fdd\u7ba1\u3057\u3066\u3042\u308b\u30b5\u30fc\u30d0\u306b\u4ee5\u4e0b\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3092\u6e08\u307e\u305b\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<br \/>\n yum \u3084 apt-get \u3067\u3055\u304f\u3063\u3068\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u3057\u307e\u3048\u3070\u3088\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<ul>\n<li>PostgreSQL\u30b5\u30fc\u30d0 (9.1\u4ee5\u4e0a)<\/li>\n<li>Python, pip<\/li>\n<\/ul>\n<p>logfile_fdw\u306f\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7c21\u5358\u3067\u3059\u306d\u3002<\/p>\n<pre class=\"lang:sh decode:false \">\r\n$ sudo pip install pgxnclient\r\n$ sudo pip install git+https:\/\/github.com\/yuki-teraoka\/logfile_fdw.git\r\n$ sudo pgxn install multicorn\r\n<\/pre>\n<p>1\u884c\u76ee\u306f PGXN \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3067\u3059\u3002\u3053\u308c\u306f PostgreSQL \u306e\u62e1\u5f35\u6a5f\u80fd\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3092\u81ea\u52d5\u5316\u3057\u3066\u304f\u308c\u308b\u30c4\u30fc\u30eb\u3067\u3001\u4eca\u56de\u306f Multicorn \u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306b\u5229\u7528\u3057\u307e\u3059\u3002<br \/>\n3\u884c\u76ee\u3067 logfile_fdw \u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n5\u884c\u76ee\u306f pgxn \u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3063\u3066 Multicorn \u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n\uff08\u3053\u306e\u6642\u3001\u5bfe\u8c61\u306e PostgreSQL \u30b5\u30fc\u30d0\u306e pg_config \u306b\u5bfe\u3057\u3066\u30d1\u30b9\u304c\u901a\u3063\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u8907\u6570\u306e PostgreSQL \u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u3044\u308b\u74b0\u5883\u3067\u306f\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\uff09<\/p>\n<p>\u6b21\u306b PostgreSQL \u3078\u306e Multicorn \u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u7d44\u8fbc\u307f\u3068\u3001FDW\u7528\u30b5\u30fc\u30d0\u60c5\u5831\u306e\u767b\u9332\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"lang:sql decode:true \">\r\n$ psql\r\nCREATE EXTENSION multicorn;\r\n\r\nCREATE SERVER logfile_fdw FOREIGN DATA WRAPPER multicorn options (\r\n        wrapper 'logfile_fdw.LogFileForeignDataWrapper'\r\n);\r\n<\/pre>\n<p>Multicorn \u3092\u4f7f\u3063\u305f FDW \u3067\u306f\u3001\u30b5\u30fc\u30d0\u60c5\u5831\u767b\u9332\u6642\u306b\u3001wrapper \u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u5229\u7528\u3059\u308b Python \u306e FDW \u5b9f\u88c5\u30af\u30e9\u30b9\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\n\u3053\u306e\u3088\u3046\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001 Multicorn \u304c\u3053\u306e\u30b5\u30fc\u30d0\u60c5\u5831\u3092\u5229\u7528\u3059\u308b\u30c6\u30fc\u30d6\u30eb\u3078\u306e\u51e6\u7406\u6642\u306b Python \u30af\u30e9\u30b9\u3068 PostgreSQL \u306e\u6a4b\u6e21\u3057\u3092\u3057\u3066\u304f\u308c\u308b\u306e\u3067\u3059\u3002<\/p>\n<h2>\u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u306e\u4f5c\u6210<\/h2>\n<p>\u4eca\u56de\u306f\u30b5\u30f3\u30d7\u30eb\u3068\u3057\u3066 yum \u306e\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u3001 \/var\/log\/yum.log \u3092\u691c\u7d22\u3057\u3066\u307f\u308b\u3053\u3068\u306b\u3057\u307e\u3059\u3002<br \/>\n\uff08\u958b\u767a\u30de\u30b7\u30f3\u306e \/var\/log \u306e\u4e2d\u3067\u4e00\u756a\u30d1\u30fc\u30b9\u304c\u697d\u305d\u3046\u3060\u3063\u305f\u306e\u3067\u9078\u3073\u307e\u3057\u305f\uff09<\/p>\n<p>\u307e\u305a\u3001PostgreSQL \u30b5\u30fc\u30d0\u306e\u5b9f\u884c\u30e6\u30fc\u30b6\u304c\u8aad\u307f\u53d6\u308b\u305f\u3081\u306b\u3001\u6a29\u9650\u3092\u4ed8\u4e0e\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"lang:sh decode:true \">\r\n$ sudo chmod o+r \/var\/log\/yum.log\r\n<\/pre>\n<p>FDW \u3067\u30c7\u30fc\u30bf\u3092\u64cd\u4f5c\u3059\u308b\u305f\u3081\u306b\u306f CREATE FOREIGN TABLE \u6587\u3067\u30c6\u30fc\u30d6\u30eb\u5b9a\u7fa9\u3092\u4f5c\u6210\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"lang:sql decode:true \">\r\nCREATE FOREIGN TABLE yumlog(\r\n        month text,\r\n        day text,\r\n        time text,\r\n        type text,\r\n        package text\r\n) SERVER logfile_fdw OPTIONS (\r\n        log_pattern '(?P<month>[^ ]*) (?P<day>[^ ]*) (?P<time>[^ ]*) (?P<type>[^: ]*):? (?P<package>.*)',\r\n        file_pattern '\/var\/log\/yum.log'\r\n);\r\n<\/pre>\n<p>\u69cb\u6587\u306f\u901a\u5e38\u306e CREATE TABLE \u6587\u3068\u307b\u307c\u540c\u3058\u3067\u3059\u304c\u3001\u6700\u5f8c\u306b SERVER \u30b5\u30fc\u30d0\u540d OPTIONS (FDW\u306b\u6e21\u3059\u30aa\u30d7\u30b7\u30e7\u30f3) \u3092\u4e0e\u3048\u307e\u3059\u3002<br \/>\nlogfile_fdw \u3067\u306f\u3001log_pattern \u306b\u30ed\u30b0\u884c\u3092\u30d1\u30fc\u30b9\u3059\u308b\u6b63\u898f\u8868\u73fe\uff08\u5404\u9805\u76ee\u3092\u540d\u524d\u4ed8\u304d\u30b0\u30eb\u30fc\u30d7\u3067\u6307\u5b9a\uff09\u3001<br \/>\nfile_pattern \u306b\u5bfe\u8c61\u30d5\u30a1\u30a4\u30eb\u540d\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<br \/>\n\u30c6\u30fc\u30d6\u30eb\u5b9a\u7fa9\u306e\u9805\u76ee\u540d\u306f log_pattern \u306e\u6b63\u898f\u8868\u73fe\u3067\u6307\u5b9a\u3057\u305f\u30b0\u30eb\u30fc\u30d7\u540d\u3068\u4e00\u81f4\u3055\u305b\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u5916\u90e8\u30c6\u30fc\u30d6\u30eb\u306e\u4f5c\u6210\u307e\u3067\u5b8c\u4e86\u3057\u3001\u3053\u308c\u3067\u691c\u7d22\u306e\u6e96\u5099\u304c\u6574\u3044\u307e\u3057\u305f\u3002<\/p>\n<h2>SELECT \u3057\u3066\u307f\u308b<\/h2>\n<p>\u5148\u307b\u3069\u4f5c\u3063\u305f yumlog \u30c6\u30fc\u30d6\u30eb\u3092 SELECT \u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:sql decode:true \">\r\nSELECT * FROM yumlog WHERE type = 'Updated' LIMIT 10;\r\n month | day |   time   |  type   |                  package\r\n-------+-----+----------+---------+--------------------------------------------\r\n Jan   | 30  | 10:57:24 | Updated | nspr-4.10.6-1.el7_0.x86_64\r\n Jan   | 30  | 10:57:24 | Updated | nss-util-3.16.2.3-1.el7_0.x86_64\r\n Jan   | 30  | 10:57:24 | Updated | nss-softokn-freebl-3.16.2.3-1.el7_0.x86_64\r\n Jan   | 30  | 10:57:25 | Updated | nss-softokn-3.16.2.3-1.el7_0.x86_64\r\n Jan   | 30  | 10:57:25 | Updated | nss-sysinit-3.16.2.3-2.0.1.el7_0.x86_64\r\n Jan   | 30  | 10:57:25 | Updated | nss-3.16.2.3-2.0.1.el7_0.x86_64\r\n Jan   | 30  | 10:57:32 | Updated | nss-tools-3.16.2.3-2.0.1.el7_0.x86_64\r\n Jan   | 30  | 11:01:40 | Updated | libdb-5.3.21-17.el7_0.1.x86_64\r\n Jan   | 30  | 11:01:56 | Updated | libdb-utils-5.3.21-17.el7_0.1.x86_64\r\n Feb   | 25  | 22:08:08 | Updated | httpd-tools-2.4.6-19.0.1.el7_0.x86_64\r\n(10 \u884c)\r\n<\/pre>\n<p>\u3054\u89a7\u306e\u3068\u304a\u308a\u666e\u901a\u306b SELECT \u3067\u304d\u3066\u3044\u307e\u3059\u3002WHERE \u3082 LIMIT \u3082\u30d0\u30c3\u30c1\u30ea\u52b9\u3044\u3066\u3044\u307e\u3059\u306d\u3002<br \/>\n\u96c6\u7d04\u95a2\u6570\u306a\u3069\u3082\u8a66\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n<pre class=\"lang:sql decode:true \">\r\nSELECT month, COUNT(*) FROM yumlog WHERE type = 'Updated' GROUP BY month ORDER BY COUNT(*) DESC;\r\n  month | count\r\n -------+-------\r\n  Apr   |   266\r\n  Mar   |    15\r\n  Dec   |    10\r\n  Jan   |     9\r\n  Feb   |     3\r\n  Nov   |     1\r\n (6 \u884c)\r\n<\/pre>\n<p>\u6587\u53e5\u306a\u3057\u306e\u7d50\u679c\u3067\u3059\u3002\u5ff5\u306e\u70ba\u30b7\u30a7\u30eb\u30b3\u30de\u30f3\u30c9\u3067\u306e\u96c6\u8a08\u3068\u6bd4\u3079\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:sh decode:true \">\r\n$ cat \/var\/log\/yum.log | grep Updated | cut -d\" \" -f1 | sort | uniq -c | sort -nr\r\n    266 Apr\r\n     15 Mar\r\n     10 Dec\r\n      9 Jan\r\n      3 Feb\r\n      1 Nov\r\n<\/pre>\n<p>\u5b8c\u74a7\u3067\u3059\u306d\u3002SQL \u3068\u30b3\u30de\u30f3\u30c9\u3092\u898b\u6bd4\u3079\u308b\u3068\u3001\u53ef\u8aad\u6027\u306e\u9055\u3044\u306f\u4e00\u76ee\u77ad\u7136\u3067\u3059\u3002<br \/>\n\u3055\u3089\u306b\u30b7\u30a7\u30eb\u82b8\u3067\u306f\u96e3\u3057\u3044 JOIN \u306a\u3069\u3082\u7c21\u5358\u306b\u3067\u304d\u3066\u3057\u307e\u3046\u8a33\u3067\u3059\u3002<br \/>\nSQL\u4e07\u6b73\uff01!<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u7b46\u8005\u306f Python \u521d\u6311\u6226\u306a\u306e\u3067\u8272\u3005\u3068\u82e6\u52b4\u3057\u307e\u3057\u305f\u304c\u3001\u672c\u4f5340\u884c\u306b\u6e80\u305f\u306a\u3044\u30b9\u30af\u30ea\u30d7\u30c8\u3067<br \/>\nPostgreSQL \u306b\u65b0\u3057\u3044\u6a5f\u80fd\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n<p>\u4eca\u56de\u4f5c\u3063\u305f\u30bd\u30fc\u30b9\u306f<a href=\"https:\/\/github.com\/yuki-teraoka\/logfile_fdw\">logfile_fdw<\/a>\u306b\u30a2\u30c3\u30d7\u3057\u3066\u3042\u308a\u307e\u3059\u3002<br \/>\nApache \u30ed\u30b0\u3092\u7c21\u5358\u306b\u30d1\u30fc\u30b9\u3067\u304d\u308b\u7d44\u8fbc\u307f\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306a\u3069\u3082\u5b9f\u88c5\u3057\u3066\u307f\u305f\u306e\u3067\u3001\u3088\u308d\u3057\u3051\u308c\u3070\u904a\u3093\u3067\u307f\u3066\u304f\u3060\u3055\u3044\u3002<br \/>\ngz \u3084 bz \u306e\u3088\u3046\u306a\u5727\u7e2e\u30ed\u30b0\u3078\u306e\u5bfe\u5fdc\u306a\u3069\u3001\u4eca\u5f8c\u3082\u624b\u3092\u5165\u308c\u3066\u3044\u3051\u308c\u3070\u3068\u601d\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30c7\u30fc\u30bf\u30cf\u30d6\u3068\u3057\u3066\u306e\u53ef\u80fd\u6027\u304c\u5e83\u304c\u308b PostgreSQL FDW \u306e\u4e16\u754c\u3092\u3001\u307f\u306a\u3055\u3093\u3082\u8a66\u3057\u3066\u307f\u3066\u306f\u3044\u304b\u304c\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\u3001\u5bfa\u5ca1\u3067\u3059\u3002<br \/>\n\u3053\u308c\u306f TECHSCORE Advent Calendar 2015  \u306e16\u65e5\u76ee\u306e\u8a18\u4e8b\u3067\u3059\u3002<br \/><a href=\"https:\/\/www.techscore.com\/blog\/2015\/12\/16\/postgresql-fdw-%e3%82%92%e4%bd%9c%e3%81%a3%e3%81%a6sql%e3%81%a7%e3%83%ad%e3%82%b0%e6%a4%9c%e7%b4%a2%e3%81%97%e3%81%a6%e3%81%bf%e3%81%9f\/\">\u7d9a\u304d\u3092\u8aad\u3080...<\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[215,18],"tags":[141,206,120],"_links":{"self":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/9200"}],"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\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/comments?post=9200"}],"version-history":[{"count":58,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/9200\/revisions"}],"predecessor-version":[{"id":9344,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/9200\/revisions\/9344"}],"wp:attachment":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/media?parent=9200"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/categories?post=9200"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/tags?post=9200"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}