提取表并通过管道将其直接传送到目标数据库:

Extract the table and pipe it directly to the target database:

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，否则你可能会看到像内存不足":

Note: If the other database already has the table set up, you should use the -a flag to import data only, else you may see weird errors like "Out of memory":

pg_dump -a -t my_table my_db | psql target_db