4 commits

Author	SHA1	Message	Date
Sergei Petrunia	f7579518e2	MDEV-19600: The optimizer should be able to produce rows=1 estimate for unique index with NULLable columns ... Modify best_access_path() to produce rows=1 estimate for null-rejecting lookups on unique NULL keys.	2019-06-05 14:00:45 +03:00
Varun Gupta	7056812ed1	MDEV-16214: Incorrect plan taken by the optimizer , uses INDEX instead of ref access with ORDER BY ... The issue in this case is that we take in account the estimates from quick keys instead of rec_per_key. The estimates for quick keys are better than rec_per_key only if we have ref(const), so we need to check that all keyparts in the ref key are of the type ref(const).	2019-05-20 01:42:38 +05:30
Marko Mäkelä	acf6f92aa9	Merge 10.2 into 10.3	2019-04-25 09:05:52 +03:00
Michael Widenius	a7abddeffa	Create 'main' test directory and move 't' and 'r' there	2018-03-29 13:59:44 +03:00

Renamed from mysql-test/r/order_by.result (Browse further)