{"published":"2018-08-16 22:16:56","description":"Elasticsearch\u306b\u304a\u3044\u3066null\u3067\u691c\u7d22\u3057\u305f\u3044\u6642\u306b\u3001\u624b\u9806\u3092\u8e0f\u3080\u5fc5\u8981\u304c\u3042\u3063\u305f\u305f\u3081\u307e\u3068\u3081\u307e\u3059\u3002 TL;DR { \"type\": \"keyword\", \"null_value\": \"NULL\" } \u4e0a\u8a18\u306e\u3088\u3046\u306b\u3057\u3066\"NULL\"\u3067\u691c\u7d22\u3059\u308c\u3070null\u3092\u63a2\u305b\u307e\u3059\u3002 \u4f8b \u4e0b\u8a18\u306e\u3088\u3046\u306a\u672c\u306e\u30c7\u30fc\u30bf\u3092\u683c\u7d0d\u3059\u308bindex\u304a\u3088\u3073type\u304c\u3042\u3063\u305f\u3068\u3057\u307e\u3059\u3002 PUT books { \"mappings\": { \"book\": { \"properties\": { \"name\": { \"type\": \"keyword\" }, \"author_name\": { \"type\": \"keyword\" }, \"descrip\u2026","blog_title":"\u30a6\u30a7\u30d6\u30a8\u30f3\u30b8\u30cb\u30a2\u73cd\u9053\u4e2d","provider_url":"https://hatena.blog","categories":["Elasticsearch"],"title":"Elasticsearch\u306e\u691c\u7d22\u306b\u304a\u3044\u3066null\u3092\u691c\u7d22\u6761\u4ef6\u306b\u3057\u305f\u3044\u6642\u306b\u3059\u308b\u3053\u3068","author_name":"te-nu","image_url":"https://images-fe.ssl-images-amazon.com/images/I/51YGeSqhovL._SL160_.jpg","height":"190","url":"https://www.te-nu.com/entry/2018/08/16/221656","author_url":"https://blog.hatena.ne.jp/te-nu/","version":"1.0","type":"rich","provider_name":"Hatena Blog","blog_url":"https://www.te-nu.com/","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.te-nu.com%2Fentry%2F2018%2F08%2F16%2F221656\" title=\"Elasticsearch\u306e\u691c\u7d22\u306b\u304a\u3044\u3066null\u3092\u691c\u7d22\u6761\u4ef6\u306b\u3057\u305f\u3044\u6642\u306b\u3059\u308b\u3053\u3068 - \u30a6\u30a7\u30d6\u30a8\u30f3\u30b8\u30cb\u30a2\u73cd\u9053\u4e2d\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}