Re: losing my mind about sytnax error in window clause

Fixing the typo (*PARTITION) but bump into ERROR: FILTER is not
implemented for non-aggregate window functions ....

What Im really trying to do is merge rows into a single row, allowing the
later rows to take precedence. I thought it cracked...

On Tue, Jun 7, 2022 at 6:03 PM Rein Petersen <email(at)reinpetersen(dot)com> wrote:

> Hi Folks,
>
> I've been reading the docs over and again, searching exhaustively for
> examples on the internet to help me here and I'm ready to give up.
>
> I have a query using windows function:
>
> SELECT
> last_value ( typechange ) OVER w,
> pindex,
> lid,
> last_value ( modified ) OVER w,
> last_value ( created ) OVER w,
> last_value ( modifiedby ) OVER w,
> last_value ( createby ) OVER w,
> last_value ( cost ) FILTER ( WHERE cost IS NOT NULL ) OVER w,
> last_value ( sell ) FILTER ( WHERE sell IS NOT NULL ) OVER w
> FROM ps._delta_ext
> WHERE pindex = Ppindex AND
> ( Plid IS NULL OR lid = Plid ) AND
> ( Ptimestamp IS NULL OR modified <= Ptimestamp )
> GROUP BY lid, pindex
> WINDOW w AS ( PARITION BY lid, pindex ORDER BY created );
> Complains about syntax error in the WINDOW cause (last line) on
> [PARTITION] BY:
> /* messages
> ERROR: syntax error at or near "BY"
> LINE 16: WINDOW w AS ( PARITION BY locationid, partindex ORDER BY cr...
> ^
> SQL state: 42601
> Character: 2724
> */
>
> Maybe my error is clear to someone else, could really use helping hand,
> thanks.
>
> Rein
>
>
>
>