+sub merge_xref3 { # used for "-extindex --dedupe"
+ my ($self, $keep_docid, $drop_docid, $oidhex) = @_;
+ my $oidbin = pack('H*', $oidhex);
+ my $sth = $self->{dbh}->prepare_cached(<<'');
+UPDATE OR IGNORE xref3 SET docid = ? WHERE docid = ? AND oidbin = ?
+
+ $sth->bind_param(1, $keep_docid);
+ $sth->bind_param(2, $drop_docid);
+ $sth->bind_param(3, $oidbin, SQL_BLOB);
+ $sth->execute;
+
+ # drop anything that conflicted
+ $sth = $self->{dbh}->prepare_cached(<<'');
+DELETE FROM xref3 WHERE docid = ? AND oidbin = ?
+
+ $sth->bind_param(1, $drop_docid);
+ $sth->bind_param(2, $oidbin, SQL_BLOB);
+ $sth->execute;
+}
+
+sub eidxq_add {
+ my ($self, $docid) = @_;
+ $self->dbh->prepare_cached(<<'')->execute($docid);
+INSERT OR IGNORE INTO eidxq (docid) VALUES (?)
+
+}
+
+sub eidxq_del {
+ my ($self, $docid) = @_;
+ $self->dbh->prepare_cached(<<'')->execute($docid);
+DELETE FROM eidxq WHERE docid = ?
+
+}
+
+# returns true if we're vivifying a message for lei/store that was
+# previously external-metadata only
+sub vivify_xvmd {
+ my ($self, $smsg) = @_;
+ my @docids = $self->blob_exists($smsg->{blob});
+ my @vivify_xvmd;
+ for my $id (@docids) {
+ if (my $cur = $self->get_art($id)) {
+ # already indexed if bytes > 0
+ return if $cur->{bytes} > 0;
+ push @vivify_xvmd, $id;
+ } else {
+ warn "W: $smsg->{blob} #$id gone (bug?)\n";
+ }
+ }
+ $smsg->{-vivify_xvmd} = \@vivify_xvmd;
+}
+