{"url":"https://blog.okashoi.net/entry/2025/07/17/183055","blog_url":"https://blog.okashoi.net/","title":"\u3010PostgreSQL\u3011SELECT \u3057\u305f\u7d50\u679c\u3092\u5909\u6570\u306b\u683c\u7d0d\u3057\u3066\u5f8c\u7d9a\u306e\u30af\u30a8\u30ea\u3067\u5229\u7528\u3059\u308b\uff08\\gset \u30e1\u30bf\u30b3\u30de\u30f3\u30c9\uff09","provider_name":"Hatena Blog","author_name":"okashoi","image_url":null,"author_url":"https://blog.hatena.ne.jp/okashoi/","version":"1.0","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.okashoi.net%2Fentry%2F2025%2F07%2F17%2F183055\" title=\"\u3010PostgreSQL\u3011SELECT \u3057\u305f\u7d50\u679c\u3092\u5909\u6570\u306b\u683c\u7d0d\u3057\u3066\u5f8c\u7d9a\u306e\u30af\u30a8\u30ea\u3067\u5229\u7528\u3059\u308b\uff08\\gset \u30e1\u30bf\u30b3\u30de\u30f3\u30c9\uff09 - s\u5e73\u9762\u306e\u5de6\u5074\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2025-07-17 18:30:55","provider_url":"https://hatena.blog","description":"www.postgresql.jp \\gset \u306b\u306f 1 \u884c\u306e\u7d50\u679c\u3092\u3057\u304b\u683c\u7d0d\u3067\u304d\u306a\u3044\u304c\u3001string_aggr \u3092\u4f7f\u3063\u3066\u30ab\u30f3\u30de\u533a\u5207\u308a\u6587\u5b57\u5217\u306b\u3057\u3001string_to_array \u3067\u5c55\u958b\u3057\u3066\u4f7f\u3046\u3068\u3044\u3046\u5de5\u592b\u3067\u6b21\u306e\u3088\u3046\u306b\u4f7f\u7528\u3067\u304d\u308b\u3002 -- \u666e\u901a\u306e\u5909\u6570\u4ee3\u5165 \\set target_user_id '01234567-89ab-cdef-0123-456789abcdef' -- SELECT \u7d50\u679c\u3092 \\gset \u3092 \u4f7f\u3063\u3066 post_ids \u3068\u3044\u3046\u540d\u524d\u3067\u683c\u7d0d SELECT string_agg(id::text, ',') as post_ids FROM post WHERE auther_id = \u2026","width":"100%","height":"190","categories":["\u6280\u8853\uff0f\u305d\u306e\u4ed6"],"blog_title":"s\u5e73\u9762\u306e\u5de6\u5074"}