pg_dump: Dumping the contents of TABLE "table_name" failed: PQgetCopyData() failed.
pg_dump: Error message FROM server: server closed the connection unexpectedly
    This probably means the server terminated abnormally
    before OR while processing the request.
pg_dump: The command was: COPY table_name (id, column2, column3, column4, column5, column6) TO stdout;