From: | "Pavel Stehule" <pavel(dot)stehule(at)gmail(dot)com> |
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To: | "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: sum() over (partition by order) question |
Date: | 2008-12-31 22:13:29 |
Message-ID: | 162867790812311413h73762d3fvf8ba00dcc71812b4@mail.gmail.com |
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Lists: | pgsql-hackers |
2008/12/31 Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>:
> "Pavel Stehule" <pavel(dot)stehule(at)gmail(dot)com> writes:
>> so I have to modify query to get expected values
>> postgres=# select a, b, last_value(a) over (partition by b),
>> last_value(a) over (partition by b order by a RANGE BETWEEN UNBOUNDED
>> PRECEDING AND UNBOUNDED FOLLOWING) from foo;
>
>> it should be noticed in doc?
>
> It is --- see the comments at the bottom of
>
> http://developer.postgresql.org/pgdocs/postgres/functions-window.html
>
> regards, tom lane
>
oh, yes, there it is, thank you
and Happy New Year
regards
Pavel Stehule
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