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ID# | Date | Updated | Type | Status | Sev | Version | OS | CPU | Summary |
---|---|---|---|---|---|---|---|---|---|
74280 | 2014-10-08 16:41 | 2014-10-10 13:50 | MySQL Server: InnoDB storage engine | Verified (3457 days) | S5 | 5.7.5 | Any | Any | covering secondary scans worse than PK scan at high concurrency |
86215 | 2017-05-08 13:35 | 2017-07-11 22:44 | MySQL Server: Optimizer | Analyzing (2452 days) | S5 | 8.0.1 | Any | Any | MySQL is much slower in 5.7 vs 5.6 |
68413 | 2013-02-18 2:45 | 2013-09-25 2:58 | MySQL Server: Performance Schema | Verified (3837 days) | S5 | 5.6.10, 5.6.13 | Any | Any | performance_schema overhead is at least 10% |
68481 | 2013-02-25 2:58 | 2014-11-04 11:47 | MySQL Server: InnoDB storage engine | Verified (4049 days) | S3 | 5.6.10 | Any | Any | InnoDB LRU flushing for MySQL 5.6 needs work |
68555 | 2013-03-03 21:34 | 2013-11-11 15:53 | MySQL Server: InnoDB storage engine | Verified (3790 days) | S5 | 5.6.10 | Any | Any | thread convoys from log_checkpoint_margin with innodb_buffer_pool_instances > 1 |
68825 | 2013-04-01 16:28 | 2018-07-11 15:09 | MySQL Server: Optimizer | Verified (3131 days) | S5 | 5.6.10 | Any | Any | performance regressions for single-threaded workloads |
69170 | 2013-05-07 22:50 | 2017-05-14 20:45 | MySQL Server: InnoDB storage engine | Verified (3972 days) | S3 | 5.6.11 | Any | Any | buf_flush_LRU is lazy |
69236 | 2013-05-14 22:12 | 2016-03-31 12:22 | MySQL Server: InnoDB storage engine | Verified (3131 days) | S5 | 5.6.11 | Any | Any | performance regressions for single-threaded workloads, part 2 |
69276 | 2013-05-18 19:23 | 2014-11-05 15:15 | MySQL Server: InnoDB storage engine | Verified (3966 days) | S5 | 5.6.11 | Any | Any | fil_system->mutex contention limits block read rate with fast storage |
70419 | 2013-09-25 15:14 | 2019-04-05 12:29 | MySQL Server: InnoDB storage engine | Verified (3837 days) | S3 | 5.6.14 | Any | Any | buffer vs Buffer for subsystem name in innodb_metrics |
72466 | 2014-04-26 14:57 | 2014-04-28 7:17 | MySQL Server: InnoDB storage engine | Verified (3622 days) | S3 | 5.7.4 | Any | Any | More memory overhead per page in the InnoDB buffer pool |
74198 | 2014-10-03 0:07 | 2014-10-12 17:45 | MySQL Server: Memory storage engine | Verified (3455 days) | S3 | 5.7.5 | Any | Any | Get full table scan after FORCE INDEX for HEAP |
68207 | 2013-01-28 17:01 | 2013-01-31 13:41 | MySQL Server: InnoDB storage engine | Verified (4074 days) | S3 | 5.6 | Any | Any | too much contention on "os_mutex" |
74283 | 2014-10-08 17:00 | 2020-11-23 7:43 | MySQL Server: InnoDB storage engine | Verified (2495 days) | S5 | 5.7.5 | Any | Any | Non-covering secondary index scans degrade more in 5.7 than 5.6 |
74303 | 2014-10-09 17:56 | 2022-04-10 20:45 | MySQL Server: InnoDB storage engine | Verified (3455 days) | S3 | 5.7.5 | Any | Any | commited rows are visible before log sync when binlog not used |
78672 | 2015-10-01 15:03 | 2015-10-12 12:54 | MySQL Server: InnoDB storage engine | Verified (3097 days) | S3 | 5.7.8 | Any | Any | assert fails in fil_io during linkbench with transparent innodb compression |
88827 | 2017-12-08 1:30 | 2018-05-31 13:08 | MySQL Server: InnoDB storage engine | Verified (2187 days) | S3 | 5.6.35, 5.6.38, 5.7.20, 8.0.4 | Any | Any | innodb uses too much space in the PK for concurrent inserts into the same table |
91139 | 2018-06-04 20:37 | 2021-01-13 11:59 | MySQL Server: Optimizer | Verified (1171 days) | S5 | 8.0.11 | Any | Any | use index dives less often |
98919 | 2020-03-11 22:32 | 2020-03-12 7:10 | Connector / J | Verified (1477 days) | S3 | 5.1.48, 8.0.19 | Any | Any | Connector/J 5.1.48 assumes that MySQl 5.6 is built with perf schema support |
110226 | 2023-02-27 18:39 | 2023-02-28 6:46 | MySQL Server: Compiling | Verified (394 days) | S3 | 8.0.31 | Any | Any | Build fails when CMAKE_CXX_FLAGS_RELEASE is set because -DNDEBUG isn't set |
110471 | 2023-03-22 20:40 | 2024-02-02 19:26 | MySQL Server: Errors | Verified (371 days) | S3 | 8.0 | Any | Any | Fix docs for error 1093 |
110872 | 2023-04-30 2:06 | 2023-05-04 11:32 | MySQL Server: DDL | Verified (330 days) | S3 | 8.0 | Any | Any | Unable to create indexes concurrently on the same table |
113270 | 2023-11-29 0:18 | 2023-11-29 10:34 | MySQL Server: Compiling | Verified (120 days) | S3 | 8.0.35 | Any | Any | Unable to compile 8.0.35 with DISABLE_PSI_THREAD |
113505 | 2023-12-24 18:23 | 2024-01-12 9:30 | MySQL Server: InnoDB storage engine | Verified (77 days) | S5 | 8.0.35 | Any | Any | Performance schema counter increments make parallel index create slow |
50168 | 2010-01-08 2:16 | 2018-09-09 20:45 | MySQL Server: Optimizer | Verified (5188 days) | S3 | 5.0,5.1 | Any | Any | The value of 'rows' in EXPLAIN output is not accurate for LIMIT |
41101 | 2008-11-28 15:31 | 2023-02-12 20:45 | MySQL Server: Replication | In progress (5449 days) | S2 | 5.0.67 | Any | Any | set storage_engine and set create_table are not written to the binlog |
73763 | 2014-08-28 21:47 | 2016-10-26 15:20 | MySQL Server: InnoDB storage engine | In progress (2710 days) | S5 | 5.7 | Any | Any | New futex-mutex in InnoDB needs perf attention |
30342 | 2007-08-09 18:52 | 2015-10-07 14:54 | MySQL Server: Optimizer | Verified (3095 days) | S5 | 5.0.37, 5.6.17 | Any | Any | Equality propagation can make optimization much slower |
37613 | 2008-06-24 18:46 | 2011-02-16 23:43 | MySQL Server: General | Verified (5756 days) | S3 | 5.0.37, 5.0, 5.1, 6.0 bzr | Any | Any | user_var_entry allocations do not use the user_var_entry constructor |
37782 | 2008-07-01 17:58 | 2011-02-16 23:43 | MySQL Server: Security: Privileges | Verified (5378 days) | S3 | 5.0.62, 5.1, 4.1, 6.0 bzr | Any | Any | Program defensively in sql_acl.cc |
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