cd /usr/local/src/postfix-2.8.5 grep -rlni CLIENT_MULTI_RESULTS . ... nothing.
Assuming the patch at http://errorval.livejournal.com/37425.html works, it looks very similar for current v285 src, -- --- ./src/global/dict_mysql.c.ORIG 2010-06-18 15:25:13.000000000 -0700 +++ ./src/global/dict_mysql.c 2011-10-15 16:06:48.987965623 -0700 @@ -516,6 +516,7 @@ } else { if (msg_verbose) msg_info("dict_mysql: successful query from host %s", host->hostname); + while ( mysql_next_result(host->db) == 0); event_request_timer(dict_mysql_event, (char *) host, IDLE_CONN_INTV); break; } @@ -544,7 +545,7 @@ dbname, host->port, (host->type == TYPEUNIX ? host->name : 0), - 0)) { + CLIENT_MULTI_RESULTS)) { if (msg_verbose) msg_info("dict_mysql: successful connection to host %s", host->hostname); -- The wiki says http://www.postfix.org/PGSQL_README.html "Updates for Postfix 1.1.x and PostgreSQL 7.1+ and support for calling stored procedures were added by Philip Warner." Can't find similar for MySQL at http://www.postfix.org/MYSQL_README.html or anywhere else I've looked yet. Rather than kludging, I'd like to know if StoredProcs are, or will be soon, 'in' Postfix. Rich