On May 02 06:13, Reed Loefgren wrote: > I've been trying to run a nested query via a browser using a php script. > The script looks at a table with a couple years worth of data (6M rows). > If I constrain the search to five or six days of the data it works fine > and displays the result set in the browser, but if I have it parse the > entire table it errors out with this message: > > server closed the connection unexpectedly This probably means the server > terminated abnormally before or while processing the request. Just making rhetoric: You removed script execution time limits via set_time_limit(), right? I'll suggest turning error_reporting() to E_ALL and using asynchronous query execution functions, instead of synchron ones. For instance: $query_cmd = "SELECT ..."; $res = pg_send_query($conn, $query_cmd); if (!$res) { /* Error handling stuff... */ } while (pg_connection_busy($conn)) { /* * Sorry, no clue about connection socket in here. * We're waiting without select() or poll(). * (I know, I know... PHP sucks.) */ usleep(100000); /* 0.1 seconds. */ } /* Seems like result is ready now. */ $res = pg_get_result($conn); if (!$res) { /* Error handling. */ } IMHO, this method can output more verbose (and accurate?) query status when compared to an odd pg_query() call. Regards.