{"url":"https://akinobu.net/entry/2017/09/28/175302","title":"Rails\u3067PostgreSQL\u306bNULLS LAST\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8ffd\u52a0\u3059\u308b\u65b9\u6cd5","type":"rich","provider_url":"https://hatena.blog","author_name":"kuronekopunk","provider_name":"Hatena Blog","image_url":null,"version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fakinobu.net%2Fentry%2F2017%2F09%2F28%2F175302\" title=\"Rails\u3067PostgreSQL\u306bNULLS LAST\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8ffd\u52a0\u3059\u308b\u65b9\u6cd5 - \u30ce\u30f3\u30ab\u30d5\u30a7\u30a4\u30f3\u3067\u3042\u306a\u305f\u306b\u3084\u3055\u3057\u3044\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"\u30bf\u30a4\u30c8\u30eb\u30de\u30de nulls last\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f5c\u308a\u305f\u3044\u3051\u3069\u306a\u304b\u306a\u304b\u898b\u3064\u304b\u3089\u306a\u304b\u3063\u305f\u306e\u3067\u66f8\u304d\u307e\u3057\u305f\u3002 migration \u306b\u3053\u308c add_index :table, :column, order: { column: 'DESC NULLS LAST' } \u53c2\u8003 PostgreSQL: Ordering, NULLs, and indexes - makandropedia \u5143\u306ePostgreSQL\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u306f\u3053\u3061\u3089\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059 https://www.postgresql.jp/document/8.3/html/sql-createindex.html","blog_title":"\u30ce\u30f3\u30ab\u30d5\u30a7\u30a4\u30f3\u3067\u3042\u306a\u305f\u306b\u3084\u3055\u3057\u3044","author_url":"https://blog.hatena.ne.jp/kuronekopunk/","blog_url":"https://akinobu.net/","width":"100%","categories":["Rails","PostgreSQL","Ruby on Rails"],"published":"2017-09-28 17:53:02","height":"190"}