No more httpd restart is required when PostgreSQL is rebooted.

# Works for pg_query()/pg_send_query()

ext/pgsql/pgsql.c

@@ -829,6 +829,9 @@ PHP_FUNCTION(pg_query)
 	
 	ZEND_FETCH_RESOURCE2(pgsql, PGconn *, pgsql_link, id, "PostgreSQL link", le_link, le_plink);
 
+	if (PQstatus(pgsql) != CONNECTION_OK) {
+		PQreset(pgsql);
+	}
 	convert_to_string_ex(query);
 	PQsetnonblocking(pgsql, 0);
 	while ((pgsql_result = PQgetResult(pgsql))) {
@@ -2510,6 +2513,9 @@ PHP_FUNCTION(pg_send_query)
 
 	ZEND_FETCH_RESOURCE2(pgsql, PGconn *, &pgsql_link, id, "PostgreSQL link", le_link, le_plink);
 
+	if (PQstatus(pgsql) != CONNECTION_OK) {
+		PQreset(pgsql);
+	}
 	if (PQsetnonblocking(pgsql, 1)) {
 		php_error(E_NOTICE,"%s() cannot set connection to nonblocking mode",
 				  get_active_function_name(TSRMLS_C));