Following query is considered as correct, no "missing from" error has
been reported (so, entire table will be updated and "on update"
triggers will be fired for every row):
update item set obj_id = obj_id
where obj_id in (select obj_id where item_point is null order by
obj_modified limit 10)
Is it a bug? If no, maybe to produce warning in such cases?
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Best regards,
Nikolay