摘要:
@Excel(name = "创建时间", format = "yyyy-MM-dd HH:mm:ss", width = 20) @Column(name = "created_time", insertable = false, columnDefinition = "timestamp def 阅读全文
posted @ 2023-08-03 12:52 且行且思 阅读(332) 评论(0) 推荐(0)
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摘要:
@Excel(name = "创建时间", format = "yyyy-MM-dd HH:mm:ss", width = 20) @Column(name = "created_time", insertable = false, columnDefinition = "timestamp def 阅读全文
posted @ 2023-08-03 12:52 且行且思 阅读(332) 评论(0) 推荐(0)
摘要:
一、 最高效方法 测试环境验证,6600万行大表,删除2200万重复数据仅需3分钟 delete from deltest a where a.ctid = any(array (select ctid from (select row_number() over (partition by id) 阅读全文
posted @ 2023-08-03 09:34 且行且思 阅读(343) 评论(0) 推荐(0) |
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