search: increase limit for thread search

Some threads are easily over 100 messages, so the 50 limit is
not enough.  It is likely that 1000 messages is not enough,
either, and we will need to tune our threading to handle more
messages and supply options for configurability.

1 files changed, 2 insertions, 0 deletions

diff --git a/lib/PublicInbox/Search.pm b/lib/PublicInbox/Search.pm
index 0f7815fb..d9fbc36c 100644
--- a/lib/PublicInbox/Search.pm
+++ b/lib/PublicInbox/Search.pm
@@ -109,6 +109,8 @@ sub get_thread {
         my $path = id_compress($smsg->path);
         my $qsub = Search::Xapian::Query->new(xpfx('path').$path);
         my $query = Search::Xapian::Query->new(OP_OR, $qtid, $qsub);
+        $opts ||= {};
+        $opts->{limit} ||= 1000;
         $self->do_enquire($query, $opts);
 }