https://lobsterpot.com.au/blog/2013/09/23/string-length-and-sargability/ Tue, 09 Mar 2021 00:11:44 +0000 hourly 1 https://wordpress.org/?v=7.0 https://lobsterpot.com.au/blog/2013/09/23/string-length-and-sargability/#comment-2389 Tue, 09 Mar 2021 00:11:44 +0000 http://blogs.lobsterpot.com.au/?p=3292#comment-2389 […] from datetime to date? Well, it's about being able to add a helper predicate to the mix. (This is also how LIKE works against strings.) The Query Optimizer knows that all the values must be in a certain range, so that it can seek to […]

]]> https://lobsterpot.com.au/blog/2013/09/23/string-length-and-sargability/#comment-2388 Mon, 23 Sep 2013 04:23:01 +0000 http://blogs.lobsterpot.com.au/?p=3292#comment-2388 Hi Tobi,
Skip Scans would indeed be very useful.
Rob

]]> https://lobsterpot.com.au/blog/2013/09/23/string-length-and-sargability/#comment-2387 Sun, 22 Sep 2013 21:54:02 +0000 http://blogs.lobsterpot.com.au/?p=3292#comment-2387 The last example would have benefited from a skip scan (https://connect.microsoft.com/SQLServer/feedback/details/695044/implement-index-skip-scan). I see opportunities for skip scans all the time, not just with "filthy" type conversion.

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