| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | David Fetter <david(at)fetter(dot)org> |
| Cc: | Bruce Momjian <bruce(at)momjian(dot)us>, Josh Berkus <josh(at)agliodbs(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Grzegorz Jaskiewicz <gj(at)pointblue(dot)com(dot)pl>, Hitoshi Harada <umi(dot)tanuki(at)gmail(dot)com>, Andrew Gierth <andrew(at)tao11(dot)riddles(dot)org(dot)uk>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Closing some 8.4 open items |
| Date: | 2009-04-11 23:35:54 |
| Message-ID: | 10410.1239492954@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
David Fetter <david(at)fetter(dot)org> writes:
> It occurs to me that we ought to allow for a possibility that a
> function can be more than one special case. For example, sum() is
> both an aggregate and a windowing function, while rank() is only a
> windowing function.
If it makes the display even one character wider, -1 from me.
That's a purely hypothetical problem for the classification
we're discussing. (No, I don't feel a need for \df to remind
me every time that aggregates can also be window functions.)
regards, tom lane
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