{"version":"1.0","url":"https://a-ogawa.hatenadiary.org/entry/20041030/1099145252","height":"190","title":"heap_getattr","image_url":null,"provider_url":"https://hatena.blog","published":"2004-10-30 23:07:32","author_url":"https://blog.hatena.ne.jp/a_ogawa/","categories":["PostgreSQL"],"type":"rich","author_name":"a_ogawa","description":"HeapTuple\u304b\u3089\u30ab\u30e9\u30e0\u306e\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u30de\u30af\u30ed\u3002 attnum attnum > 0\u306e\u3068\u304d\u306f\uff0c\u4ee5\u4e0b\u306e\uff12\u901a\u308a\u3002 \u6307\u5b9a\u3057\u305f\u30ab\u30e9\u30e0\u756a\u53f7\u304ctuple\u306e\u30ab\u30e9\u30e0\u6570\u4ee5\u4e0a\u306fNULL\u3002 \u30ab\u30e9\u30e0\u756a\u53f7\u304ctuple\u306e\u30ab\u30e9\u30e0\u6570\u3088\u308a\u5c0f\u3055\u3044\u3068\u304d\u306ffastgetattr\u3092\u5b9f\u884c\u3059\u308b\u3002","blog_title":"a_ogawa","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fa-ogawa.hatenadiary.org%2Fentry%2F20041030%2F1099145252\" title=\"heap_getattr - a_ogawa\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","blog_url":"https://a-ogawa.hatenadiary.org/"}