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Hi @guohuan,
if you want to get quick review about your issue, please contact the owner in first: @liyang ,
and then any of the maintainers: @kangyang , @舛扬
and then any of the committers: @Freyaqqianjin , @刘贵宾 , @Kamus , @mentoswang , @sky-stars , @liyang , @tongdabao , @樊雅清 , @guohuan , @liuxu-enmo , @李轶楠 , @jiangxiaoying , @lestertt , @zhang cuiping
if you have any question, please contact the SIG: Docs.

https://support.huaweicloud.com/intl/zh-cn/tg-gaussdb-cent/3.x%E4%B8%BB%E5%A4%87%E7%89%88%E5%B7%A5%E5%85%B7%E5%8F%82%E8%80%83-%E5%85%AC%E6%9C%89%E4%BA%91%E5%8F%91%E5%B8%83.pdf在华为云数据库中有gs_loader的详细用法。其中主要用法是用于进行数据导入。gs_loader将控制文件支持的语法转换为\COPY语法，然后利用已有的\COPY功能，做主要数据导入工作，同时gs_loader将\COPY结果记录到日志中。