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, 4 insertions, 3 deletions

diff --git a/lib/PublicInbox/Search.pm b/lib/PublicInbox/Search.pm
index d3faaebb..b7b215f9 100644
--- a/lib/PublicInbox/Search.pm
+++ b/lib/PublicInbox/Search.pm
@@ -4,8 +4,9 @@
 package PublicInbox::Search;
 use strict;
 use warnings;
-use PublicInbox::SearchMsg;
+use constant TS => 0;
 use Search::Xapian qw/:standard/;
+use PublicInbox::SearchMsg;
 use Email::MIME;
 use PublicInbox::MID qw/mid_clean mid_compress/;
 
@@ -15,7 +16,6 @@ our $REPLY_RE = qr/^re:\s+/i;
 our $LANG = 'english';
 
 use constant {
-        TS => 0,
         # SCHEMA_VERSION history
         # 0 - initial
         # 1 - subject_path is lower-cased
@@ -25,7 +25,8 @@ use constant {
         # 5 - subject_path drops trailing '.'
         # 6 - preserve References: order in document data
         # 7 - remove references and inreplyto terms
-        SCHEMA_VERSION => 7,
+        # 8 - remove redundant/unneeded document data
+        SCHEMA_VERSION => 8,
         QP_FLAGS => FLAG_PHRASE|FLAG_BOOLEAN|FLAG_LOVEHATE|FLAG_WILDCARD,
 };