首先安装dblink

然后，你可以这样做:

INSERT INTO t2 select * from 
dblink('host=1.2.3.4
 user=*****
 password=******
 dbname=D1', 'select * t1') tt(
       id int,
  col_1 character varying,
  col_2 character varying,
  col_3 int,
  col_4 varchar 
);

提取表并将其直接输送到目标数据库:

pg_dump -t table_to_copy source_db | psql target_db

注意:如果其他数据库已经设置了表，你应该使用-a标志只导入数据，否则你可能会看到奇怪的错误，如“Out of memory”:

pg_dump -a -t table_to_copy source_db | psql target_db

如果你有两个远程服务器，那么你可以这样做:

pg_dump -U Username -h DatabaseEndPoint -a -t TableToCopy SourceDatabase | psql -h DatabaseEndPoint -p portNumber -U Username -W TargetDatabase

它会将源数据库中提到的表复制到目标数据库中同名的表，如果您已经有了模式。

你可以这样做:

pg_dump -h <host ip address> -U <host db user name> -t <host table> > <host database> | psql -h localhost -d <local database> -U <local db user>

使用psql，在与两个服务器都有连接的linux主机上

( export PGPASSWORD=password1 
  psql -U user1 -h host1 database1 \
  -c "copy (select field1,field2 from table1) to stdout with csv" ) \
| 
( export PGPASSWORD=password2 
  psql -U user2 -h host2 database2 \ 
   -c "copy table2 (field1, field2) from stdin csv" )

首先安装dblink

然后，你可以这样做:

INSERT INTO t2 select * from 
dblink('host=1.2.3.4
 user=*****
 password=******
 dbname=D1', 'select * t1') tt(
       id int,
  col_1 character varying,
  col_2 character varying,
  col_3 int,
  col_4 varchar 
);