search: reduce redundant doc data

Redundant document data increases our database size, pull the
smsg->mid off the unique term, the smsg->ts off the value, and
only generate the formatted display date off smsg->ts.

1 files changed, 0 insertions, 2 deletions

diff --git a/lib/PublicInbox/SearchIdx.pm b/lib/PublicInbox/SearchIdx.pm
index dec33334..32e07142 100644
--- a/lib/PublicInbox/SearchIdx.pm
+++ b/lib/PublicInbox/SearchIdx.pm
@@ -81,8 +81,6 @@ sub add_message {
                         $doc->add_term(xpfx('path') . mid_compress($path));
                 }
 
-                my $from = $smsg->from_name;
-                my $date = $smsg->date;
                 my $ts = Search::Xapian::sortable_serialise($smsg->ts);
                 $doc->add_value(PublicInbox::Search::TS, $ts);