From the relational point of view, tuples in a relation are sets, and sets have no ordering.
That's why you should never trust how tuples are ordered (on any relational database, not just postgreSQL), and if you care about ordering you should always use the ORDER BY clause.
On Tue, 2004-03-02 at 19:12, Josué Maldonado wrote:
Hello list,
After update a column on a table, that row goes to the top when I do a
select from that table without any order, is that the expected behavior
in postgresql? is there a way to prevent it?
Thanks in advance.
Josué Maldonado
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