Re: sql questions - Mailing list pgsql-general

From Thiemo Kellner
Subject Re: sql questions
Date
Msg-id 20180720150753.817240u65vouisis@www.gelassene-pferde.biz
Whole thread Raw
In response to sql questions  (hamann.w@t-online.de)
Responses Re: sql questions
List pgsql-general
Zitat von hamann.w@t-online.de:

> a) I am running some select query
> select ... order by ....
> Now, I would like to preserver the ordering through further  
> processing by adding a sequence number
> Of course I can do:
> create temp sequence mseq;
> select xx.*, nextval('mseq') as ord from (select ... order by ....) xx;
> drop sequence mseq;
> Is there a simpler way (avoiding the create/drop parts)

Can't you just do the ordering at the end of the processing? Maybe you  
need to drag along the order by columns and just dump them at the very  
end if applicable.

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