Hello,
Here is a patch that avoids parsing of whole messages when doing a
header search. I have tested it briefly, and it seems to give a 15-20%
speed improvement on such searches; but it does need more testing.
Note that it simply fetches only the rfc-headers instead of the whole
message, leaving the rest of &msg zeroed out (the zero-out code was
already there). So the code that lops through mime-headers and through
children simply gets NULLs and therefore does nothing. This is somewhat
of a hack, but avoids cluttering up the code and keeps the changes to a
minimum.
All my dbmail patches are still on
http://www.ramendik.ru/dbmail/index.html ; and all are aimed at 2.0.1.
Yours, Mikhail Ramendik
--- dbmail-orig/dbsearch.c 2004-11-05 01:17:57.711244102 +0300
+++ dbmail-new/dbsearch.c 2004-11-05 01:17:48.227028435 +0300
@@ -162,7 +162,17 @@
for (i = 0; i < setlen; i++) {
memset(&msg, 0, sizeof(msg));
- result = db_fetch_headers(mb->seq_list[i], &msg);
+ switch (sk->type) {
+ case IST_HDR:
+ case IST_HDRDATE_BEFORE:
+ case IST_HDRDATE_ON:
+ case IST_HDRDATE_SINCE:
+ result=db_get_main_header(mb->seq_list[i],&msg.rfcheader);
+ break;
+
+ default:
+ result = db_fetch_headers(mb->seq_list[i], &msg);
+ }
if (result != 0)
continue; /* ignore parse errors */
