>non-sargable means it can not utilize index on the field even if it exists. Say, if you have Date column in your table and you have an index on it and you want to get records for today this expression will be non-sargable
>

>where datediff(day, myColum, CURRENT_TIMESTAMP) = 0

>
>Any expression on the field are non-sargable (except for a simple CAST to date).
>
>Also, if the search condition looking for the end of the field (as in our case), this most likely also can not use index effectively.

Thanks