lib/PublicInbox/Search.pm    | 8 --------
 lib/PublicInbox/SearchIdx.pm | 8 ++++++++

diff --git a/lib/PublicInbox/Search.pm b/lib/PublicInbox/Search.pm
index 7d42aaad40d45676e2601d32d52a4d5918856e8d..6f5e0624a4a5986369f12de95d81f6fe3a01fbf4 100644
--- a/lib/PublicInbox/Search.pm
+++ b/lib/PublicInbox/Search.pm
@@ -403,14 +403,6 @@ 		$cb->($smsg) or return;
 	}
 }
 
-# returns begin and end PostingIterator
-sub find_doc_ids {
-	my ($self, $termval) = @_;
-	my $db = $self->{xdb};
-
-	($db->postlist_begin($termval), $db->postlist_end($termval));
-}
-
 # normalize subjects so they are suitable as pathnames for URLs
 # XXX: consider for removal
 sub subject_path {
diff --git a/lib/PublicInbox/SearchIdx.pm b/lib/PublicInbox/SearchIdx.pm
index 446cfb0d50afd8be723a24c4f6f5751de80ba548..a234c8c32384264853b35bc6b476660c950cb89f 100644
--- a/lib/PublicInbox/SearchIdx.pm
+++ b/lib/PublicInbox/SearchIdx.pm
@@ -389,6 +389,14 @@ 	}
 	$doc_id;
 }
 
+# returns begin and end PostingIterator
+sub find_doc_ids {
+	my ($self, $termval) = @_;
+	my $db = $self->{xdb};
+
+	($db->postlist_begin($termval), $db->postlist_end($termval));
+}
+
 sub batch_do {
 	my ($self, $termval, $cb) = @_;
 	my $batch_size = 1000; # don't let @ids grow too large to avoid OOM