Re: Function in selection?

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От Jean-Luc Lachance
Тема Re: Function in selection?
Дата
Msg-id 3E70D7EA.375D589B@nsd.ca
обсуждение исходный текст
Ответ на Function in selection?  (Dousak "May (Phoebus Apollonus)" <phoebus@email.si>)
Ответы Re: Function in selection?  (Dousak "May (Phoebus Apollonus)" <phoebus@email.si>)
Список pgsql-general
How is Z being joined?  What's the condition?


"Dousak May (Phoebus Apollonus)" wrote:
>
> Hi, I want to make really advanced query and I'm not sure it's
> possible... it would be "like that":
>
> select A, B, C, D, E, F from TABLE_X ORDER BY D, C, E
>   if A==0 AND B!=0 {A=B*Z.TABLE_Y}
>   if A!=0 AND B==0 {B=A/Z.TABLE_Y}
>
> OK, I don't really have problems with first line :), but how can I tell
> him to select like the second and third line are telling it?
> is that possible? :/
>
> Tnx,
>
> May
>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster

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