extsearchidx: favor 20-byte OID comparison

As with most of our internal-only code, favor smaller
comparisons to reduce memory traffic.

diff --git a/lib/PublicInbox/ExtSearchIdx.pm b/lib/PublicInbox/ExtSearchIdx.pm
index eb7c3d67e072c5435936a813868d3dcc74b8e06b..3a1856c847096f71df18ad3d6291a96422185e1a 100644 (file)
--- a/lib/PublicInbox/ExtSearchIdx.pm
+++ b/lib/PublicInbox/ExtSearchIdx.pm
@@ -120,9 +120,8 @@ sub apply_boost ($$) {
                                ||
                $a->[1] <=> $b->[1] # break ties with {xnum}
        } @$xr3;
-       my $top_blob = unpack('H*', $xr3->[0]->[2]);
        my $new_smsg = $req->{new_smsg};
-       return if $top_blob ne $new_smsg->{blob}; # loser
+       return if $xr3->[0]->[2] ne pack('H*', $new_smsg->{blob}); # loser
 
        # replace the old smsg with the more boosted one
        $new_smsg->{num} = $smsg->{num};