Sam Carleton <[email protected]> wrote:
> This works great. The issue is that the image returned might NOT
> exist anymore, so I created an extension function to return 1 if it
> exists, 0 if it doesn't, findImage( RootPath, FolderId, ImageId).
> Then I added to the select statement like this:
>
> SELECT FolderId, ImageId, instertedon
> FROM V_FAVORITES_SELECTED
> WHERE instertedon > julianday(@time) AND findImage( @rootPath,
> FolderId, ImageId) = 1
> LIMIT 1
>
> The findLargeImage gets called for EVERY row. I was hoping there
> would be some sort of short-circuit evaluation, like there is in C/C++
> and many other languages. Is there some way I could rewrite the query
> to short-circuit so that findImage()
Try something like this:
WHERE case when instertedon > julianday(@time)
then findImage(@rootPath, FolderId, ImageId)
else 0 end;
--
Igor Tandetnik
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