{"description":"\u5185\u90e8\u7d50\u5408\u3057\u305f\u5225\u30c6\u30fc\u30d6\u30eb\u306b\u6307\u5b9a\u3055\u308c\u305f\u6761\u4ef6\u3092\u63a8\u79fb\u7684\u306b\u4f7f\u7528\u3057\u3066\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30a2\u30af\u30bb\u30b9\u6642\u306b\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u30d7\u30eb\u30fc\u30cb\u30f3\u30b0\u3067\u304d\u308b\u304b\u78ba\u8a8d \u2192 \u3044\u305a\u308c\u306eDB\u3082\u6709\u52b9 MySQL (8.0.29) drop table tab1;create table tab1( col1 bigint ,col2 bigint ,col3 bigint) partition by hash ( col1 ) ( partition p0 , partition p1 ); -- alter table tab1 add constraint tab1pk primary key(col1,col2); drop table ta\u2026","height":"190","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","title":"\u30d7\u30eb\u30fc\u30cb\u30f3\u30b0\u6761\u4ef6\u306e\u63a8\u79fb\u5f8b","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2022%2F08%2F23%2F104725\" title=\"\u30d7\u30eb\u30fc\u30cb\u30f3\u30b0\u6761\u4ef6\u306e\u63a8\u79fb\u5f8b - HTN20190109\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","author_url":"https://blog.hatena.ne.jp/HTN20190109/","categories":["DB"],"url":"https://htn20190109.hatenablog.com/entry/2022/08/23/104725","blog_title":"HTN20190109\u306e\u65e5\u8a18","version":"1.0","image_url":null,"type":"rich","blog_url":"https://htn20190109.hatenablog.com/","published":"2022-08-23 10:47:25","author_name":"HTN20190109"}