{"title":"\u4e26\u5217Aggregate\u306b\u5411\u3051\u3066","blog_title":"KaiGai\u306e\u4ffa\u30e1\u30e2","type":"rich","author_url":"https://blog.hatena.ne.jp/kaigai/","height":"190","author_name":"kaigai","blog_url":"https://kaigai.hatenablog.com/","provider_name":"Hatena Blog","version":"1.0","categories":["PostgreSQL"],"description":"PostgreSQL Advent Calendar 2014\u306b\u53c2\u52a0\u3057\u3066\u3044\u307e\u3059\u3002 \u6570\u65e5\u524d\u3001Simon\u304cPgSQL-Hackers\u306b\u9762\u767d\u3044\u30d1\u30c3\u30c1\u3092\u6295\u3052\u3066\u304d\u305f\u3002\u66f0\u304f\u3001 KaiGai, David Rowley and myself have all made mention of various ways we could optimize aggregates. Following WIP patch adds an extra function called a \"combining function\", that is intended to allow the user to specif\u2026","image_url":"http://cdn-ak.f.st-hatena.com/images/fotolife/k/kaigai/20141219/20141219214544.png","url":"https://kaigai.hatenablog.com/entry/2014/12/20/093643","width":"100%","published":"2014-12-20 09:36:43","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkaigai.hatenablog.com%2Fentry%2F2014%2F12%2F20%2F093643\" title=\"\u4e26\u5217Aggregate\u306b\u5411\u3051\u3066 - KaiGai\u306e\u4ffa\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog"}