postgresql 导出与导入数据

#!/bin/bash

set -e
set -x

# 导出数据
export PGPASSWORD='db user passwd'
psql -h host -U user -d dbname -c "\copy ( select column1, column2, column3 from table )  to export.data"

# 导入数据
export PGPASSWORD='db user passwd'
psql -h host -U user -d dbname -c "\copy table(column1, column2, column3) from  import.data"