{"description":"\u30c6\u30fc\u30d6\u30eb\u30ab\u30e9\u30e0\u306b\u914d\u5217\u578b\u3092\u4f7f\u3046\u8a2d\u8a08\u306f\u3042\u307e\u308a\u3057\u306a\u3044\u3002 CREATE TABLE \u6587\u306e\u66f8\u304d\u65b9\u306f\u3001\uff12\u901a\u308a\u3042\u308b\u3002 \u6587\u5b57\u578b\u306e\u914d\u5217\u306e\u5834\u5408\u3001VARCHAR[] \u3068\u3044\u3046\u66f8\u304d\u65b9\u3068 '_' \u30a2\u30f3\u30c0\u30fc\u30d0\u30fc\u3092\u3064\u3051\u3066 _VARCHAR \u3068\u3059\u308b\u65b9\u6cd5 CREATE TABLE foo ( id INTEGER NOT NULL, tname VARCHAR[] NOT NULL, CONSTRAINT foo_pkey PRIMARY KEY (id) ) CREATE TABLE foo ( id INTEGER NOT NULL, tname _VARCHAR NOT NULL, CONSTRAINT foo_pkey \u2026","author_name":"posturan","url":"https://oboe2uran.hatenablog.com/entry/2026/06/20/111447","type":"rich","published":"2026-06-20 11:14:47","width":"100%","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/posturan/","categories":["SQL"],"blog_url":"https://oboe2uran.hatenablog.com/","version":"1.0","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Foboe2uran.hatenablog.com%2Fentry%2F2026%2F06%2F20%2F111447\" title=\"PostgreSQL\u306e\u914d\u5217\u578b\u3001\u7c21\u5358\u306a\u30b5\u30f3\u30d7\u30eb - Oboe\u5439\u304d\u30d7\u30ed\u30b0\u30e9\u30de\u306e\u9ed9\u793a\u9332\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"Oboe\u5439\u304d\u30d7\u30ed\u30b0\u30e9\u30de\u306e\u9ed9\u793a\u9332","image_url":null,"title":"PostgreSQL\u306e\u914d\u5217\u578b\u3001\u7c21\u5358\u306a\u30b5\u30f3\u30d7\u30eb","provider_url":"https://hatena.blog"}