An explain of the two statements yields the same plan,
anybody knows if they are actually translated in the same plan?
Claudio
Ian P. Christian wrote:
2009/3/29 Oscar <ro4...@gmail.com>:
Hi all-
I want to know what the difference between IN and OR is under the hood.
select * from dummy_table where id in (2, 3, 4, 5, 6, 7);
select * from dummy_table where id=2 or id=3 or id=4 or id=5 or id=6 or
id=7;
I've have thought once the query is compiled, they are the same. What
might cause a difference in performance is doing id > 2 and id <= 7.
Test it on a large dataset and let us know :)
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