Merge tag 'v1.6.1' into eidx

[public-inbox.git] / lib / PublicInbox / Search.pm

diff --git a/lib/PublicInbox/Search.pm b/lib/PublicInbox/Search.pm
index 05c679c9a6b3f4386c55d1e52411bc6a985f4002..fb3e997518e3b790f5ee7d774282b81948342af7 100644 (file)
--- a/lib/PublicInbox/Search.pm
+++ b/lib/PublicInbox/Search.pm
@@ -58,7 +58,11 @@ our $QP_FLAGS;
 our %X = map { $_ => 0 } qw(BoolWeight Database Enquire QueryParser Stem Query);
 our $Xap; # 'Search::Xapian' or 'Xapian'
 our $NVRP; # '$Xap::'.('NumberValueRangeProcessor' or 'NumberRangeProcessor')
-our $ENQ_ASCENDING;
+
+# ENQ_DESCENDING and ENQ_ASCENDING weren't in SWIG Xapian.pm prior to 1.4.16,
+# let's hope the ABI is stable
+our $ENQ_DESCENDING = 0;
+our $ENQ_ASCENDING = 1;
 
 sub load_xapian () {
        return 1 if defined $Xap;
@@ -84,12 +88,6 @@ sub load_xapian () {
                        'NumberRangeProcessor' : 'NumberValueRangeProcessor');
                $X{$_} = $Xap.'::'.$_ for (keys %X);
 
-               # ENQ_ASCENDING doesn't seem exported by SWIG Xapian.pm,
-               # so lets hope this part of the ABI is stable because it's
-               # just an integer:
-               $ENQ_ASCENDING = $x eq 'Xapian' ?
-                               1 : Search::Xapian::ENQ_ASCENDING();
-
                *sortable_serialise = $x.'::sortable_serialise';
                *sortable_unserialise = $x.'::sortable_unserialise';
                # n.b. FLAG_PURE_NOT is expensive not suitable for a public
@@ -287,7 +285,6 @@ sub mset {
        $opts ||= {};
        my $qp = $self->{qp} //= qparse_new($self);
        my $query = $qp->parse_query($query_string, $self->{qp_flags});
-       $opts->{relevance} = 1 unless exists $opts->{relevance};
        _do_enquire($self, $query, $opts);
 }
 
@@ -345,13 +342,17 @@ sub _enquire_once { # retry_reopen callback
        $enquire->set_query($query);
        $opts ||= {};
         my $desc = !$opts->{asc};
-       if (($opts->{mset} || 0) == 2) { # mset == 2: ORDER BY docid/UID
+       my $rel = $opts->{relevance} // 0;
+       if ($rel == -1) { # ORDER BY docid/UID
+               $enquire->set_weighting_scheme($X{BoolWeight}->new);
                $enquire->set_docid_order($ENQ_ASCENDING);
+       } elsif ($rel == 0) {
+               $enquire->set_sort_by_value_then_relevance(TS, $desc);
+       } elsif ($rel == -2) {
                $enquire->set_weighting_scheme($X{BoolWeight}->new);
-       } elsif ($opts->{relevance}) {
+               $enquire->set_docid_order($ENQ_DESCENDING);
+       } else { # rel > 0
                $enquire->set_sort_by_relevance_then_value(TS, $desc);
-       } else {
-               $enquire->set_sort_by_value_then_relevance(TS, $desc);
        }
 
        # `mairix -t / --threads' or JMAP collapseThreads