Marc Mamin <M.Mamin@intershop.de> wrote:
> Hello,
>
>
>
> UNION will remove all duplicates, so that the result additionally requires to
> be sorted.
Right, to avoid the SORT and UNIQUE - operation you can use UNION ALL
>
> Anyway, for performance issues, you should always start investigation with
> explain analyze .
ACK.
Arguments to support bottom-posting...
A: Because we read from top to bottom, left to right.
Q: Why should I start my reply below the quoted text?
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: The lost context.
Q: What makes top-posted replies harder to read than bottom-posted?
A: Yes.
Q: Should I trim down the quoted part of an email to which I'm replying?
Andreas
--
Really, I'm not out to destroy Microsoft. That will just be a completely
unintentional side effect. (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly." (unknown)
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