| From: | "Hitoshi Harada" <umi(dot)tanuki(at)gmail(dot)com> |
|---|---|
| To: | "David Rowley" <dgrowley(at)gmail(dot)com> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Windowing Function Patch Review -> NTH_VALUE |
| Date: | 2008-11-12 09:46:31 |
| Message-ID: | e08cc0400811120146r3c47b320g8aac5e22c05c8829@mail.gmail.com |
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| Lists: | pgsql-hackers |
2008/11/12 1:09 Hitoshi Harada <umi(dot)tanuki(at)gmail(dot)com>:
> So obviously nth_value(expr, 0) causes error and nth_value(expr, 1)
> returns the first row. I will update my patch soon.
Fixed these issues:
- ntile() value check
- nth_value() value check and behavior change
Also, I found a bug that is fixed in this release:
SELECT sum(salary) OVER w1, count(*) OVER w2 FROM empsalary WINDOW w1
AS (ORDER BY salary), w2 AS (ORDER BY salary);
The identical windows named differently were not processed
appropriately. It works now.
Regards,
--
Hitoshi Harada
| Attachment | Content-Type | Size |
|---|---|---|
| window_functions.patch.20081112-1.gz | application/x-gzip | 47.2 KB |
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