How can I Copy old single values to new repeating attr,Using DQL statement.
UPDATE your_type OBJECT set net_attr = old_attr WHERE ...
you will have to insert values into repeating attibutes
UPDATE "dm_document" OBJECTS SET "title" = 'A Cake Primer', SET "subject" = 'cake',
INSERT "authors"[3] = 'georgette'
WHERE "r_object_id" = '090007354140004e'
