{"provider_url":"https://hatena.blog","blog_title":"\u5099\u5fd8\u9332","description":"\u2160. \u306f\u3058\u3081\u306b \u5de8\u5927\u306a\u30c6\u30fc\u30d6\u30eb\u306b\u5bfe\u3059\u308bDDL\u5b9f\u884c\u3067\u30e1\u30e2\u30ea\u304c\u67af\u6e07\u3057\u3066\u3057\u307e\u3046\u5834\u5408\u306b\u4ee3\u66ff\u624b\u6bb5\u3068\u3057\u3066\u5229\u7528\u3067\u304d\u307e\u3059\u3002 \u2161. \u524d\u63d0 \u672c\u8a18\u4e8b\u5185\u5bb9\u306f\u4ee5\u4e0b\u306e\u5b9a\u7fa9\u5909\u66f4\u6587\u3092\u60f3\u5b9a\u3057\u307e\u3059\u3002 ALTER TABLE `users` ADD COLUMN `name` VARCHAR(16) NOT NULL AFTER `id`; \u2162. \u624b\u9806 1. percona-toolkit \u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b apt install percona-toolkit 2. \u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b screen \u306a\u3069\u3092\u5229\u7528\u3057\u3066\u30bb\u30c3\u30b7\u30e7\u30f3\u304c\u5207\u65ad\u3055\u308c\u3066\u3082\u826f\u3044\u72b6\u614b\u3067\u5b9f\u884c\u3059\u308b pt-online-schema-change \\ --alter \"\u2026","author_name":"kagasu","author_url":"https://blog.hatena.ne.jp/kagasu/","published":"2025-11-25 16:14:51","title":"pt-online-schema-change \u3092\u5229\u7528\u3057\u3066\u30c6\u30fc\u30d6\u30eb\u5b9a\u7fa9\u3092\u5909\u66f4\u3059\u308b\u65b9\u6cd5","width":"100%","url":"https://kagasu.hatenablog.com/entry/2025/11/25/161451","categories":["MySQL","MariaDB","SQL"],"height":"190","image_url":null,"version":"1.0","provider_name":"Hatena Blog","blog_url":"https://kagasu.hatenablog.com/","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkagasu.hatenablog.com%2Fentry%2F2025%2F11%2F25%2F161451\" title=\"pt-online-schema-change \u3092\u5229\u7528\u3057\u3066\u30c6\u30fc\u30d6\u30eb\u5b9a\u7fa9\u3092\u5909\u66f4\u3059\u308b\u65b9\u6cd5 - \u5099\u5fd8\u9332\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}