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ID# Date Updated Type Status Sev Version OS CPU Summary
987702020-02-28
4:02
2020-03-03
15:05
MySQL Server: OptimizerVerified
(206 days)
S58.0.19AnyAnyNon-covering full index scan is always preferred over table scan for GROUP BY
879472017-10-03
4:00
2018-06-11
19:57
MySQL Server: OptimizerVerified
(1082 days)
S55.7.19AnyAnyOptimizer chooses ref over range when access when range access is faster
385502008-08-04
21:47
2018-09-09
20:45
MySQL Server: OptimizerVerified
(4362 days)
S55.0.60, 5.1AnyAnymultiple optimizer bugs for queries with references from preceding table
950802019-04-23
7:24
2019-04-30
14:09
MySQL RouterVerified
(514 days)
S58.0.15, 8.0.16Oracle Linux (Oracle Linux Server 7.5, Linux 4.1.12-124.18.6.el7uek.x86_64 )x86 (Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz)MySQL Router consuming mor CPU resources than it should
582342010-11-16
16:26
2014-02-26
12:47
MySQL Server: InnoDB storage engineVerified
(3204 days)
S55.1.49-r1, 5.5.20AnyAnyLENGTH() / OCTET_LENGTH() on BLOB field very slow
639052012-01-02
23:47
2012-01-16
18:35
MySQL Server: OptimizerVerified
(3175 days)
S55.1.60Microsoft WindowsAnyhandler_read_next is suprisingly high and slows queries
784072015-09-11
12:45
2015-09-15
7:50
MySQL Server: OptimizerAnalyzing
(1837 days)
S57.4.6/5.6.24LinuxAnywrong index being used in subqueries?
893792018-01-24
11:41
2018-06-18
8:35
MySQL Server: Performance SchemaVerified
(975 days)
S55.7.20, 5.7.21AnyAnysummary_by_user tables get extremely slow with many users.
999942020-06-26
7:57
2020-06-26
13:08
MySQL Server: OptimizerVerified
(91 days)
S58.0AnyAnyIndex range scan is chosen where table scan takes 40% less time
752722014-12-19
8:34
2017-12-23
10:45
Connector / NETVerified
(1541 days)
S56.9.5.0Microsoft WindowsAnyPoor performance with Entity Framework Include Queries and Order By
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