> On Dec 5, 2020, at 10:02 AM, mark armon <1994hejian@xxxxxxxxx> wrote: > > I don't know where the pg_data directory. You will have to find it to use pg_ctl > So I set the C:\Users\Think\Desktop\postgres\data as user variable and system variable In windows setting. Doesn't do any good if that's not where the data directory is.