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ID# Date Updated Type Status Sev Version OS CPU Summary
689792013-04-17
3:47
2018-07-11
15:11
MySQL Server: OptimizerVerified
(2913 days)
S55.6.10LinuxAnyperformance regression of MySQL 5.6.10?
740832014-09-25
18:11
2014-10-09
12:58
MySQL Server: OptimizerVerified
(2408 days)
S55.6.20, 5.6.22Linux (CentOS 6.5)AnyENUM index scan is slower than INT index scan
987702020-02-28
4:02
2020-03-03
15:05
MySQL Server: OptimizerVerified
(436 days)
S58.0.19AnyAnyNon-covering full index scan is always preferred over table scan for GROUP BY
931882018-11-14
11:16
2020-07-15
12:53
MySQL Server: OptimizerVerified
(909 days)
S55.7AnyAnyOptimiser chose incorrect join order inside of derived table
950202019-04-15
10:11
2019-04-24
13:02
MySQL Server: OptimizerVerified
(751 days)
S55.7.25CentOSAnyselect no rows return but check profile process Creating sort index
1014592020-11-04
13:05
2020-11-05
12:00
MySQL Server: OptimizerVerified
(189 days)
S55.6.50,5.7.32AnyAnyWith more than one value in IN() clause, query skip index use.
242512006-11-13
10:58
2018-09-09
20:45
MySQL Server: OptimizerIn progress
(4189 days)
S55.0.30-BK, 5.1.12Linux (Linux, Win XP SP2)AnyNon-optimal choice of indexes for queries
268322007-03-04
18:17
2011-04-05
14:46
MySQL Server: OptimizerVerified
(3691 days)
S55.5AnyAnyENUM types not optimized
303422007-08-09
18:52
2015-10-07
14:54
MySQL Server: OptimizerVerified
(2045 days)
S55.0.37, 5.6.17AnyAnyEquality propagation can make optimization much slower
333812007-12-19
19:27
2018-09-09
20:45
MySQL Server: Data TypesVerified
(4237 days)
S55.0.45, 5.0.52, 5.1.40LinuxAnyTemporary table created on disk when it should be in ram
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