Copy Table from one MySQL server to another Is there a way to copy or export a large table from MySQL server to postgres without affecting servers performance. 

I mean the table is very large and using mysqldump or any select query has bad consequences.

Overall my question is: if there is a way to get the copy of the production database or table without performance problems on production.
If you can ignore changes that might happen while the copy is taking place...

Use the PRIMARY KEY to walk through the source table, fetch chunks of 100-1000 rows, copy them.  More on chunking, but adapt for just fetching, not deleting or updating.