Hi I have a problem to copy datas from unix file, I get the following message when I try to import a file with more 200000 lines : pgReadData() -- backend closed the channel unexpectedly This probably means the backend terminated abnormally before or while processing the request. We have lost the connection to the backend, so further processing is impossible. Terminating. I use postgres 6.4.2 on solaris. Thanks for your help! -- ENG Ming Hung