PostgresSQL 将查询结果写入CSV文件

su - postgres

psql db_name
//以,分隔数据
db_name=#>\f ','
//output format
db_name=#>\a
//output rows
db_name=#>\t
//output file and path
db_name=#>\o /tmp/foo.csv
//query statment
db_name=#> select * from views limit 1;
//close
db_name=#>\o

使用COPY命令装载入新表

copy views_bak from '/tmp/foo.csv' with csv;