[MDEV-23161] avg_count_reset for monitor set owner may wrongly be NULL in I_S.INNODB_METRICS - Jira

Type: Bug
Status: Closed (View Workflow)
Priority: Major
Resolution: Fixed
Affects Version/s: 10.0(EOL), 10.1(EOL), 10.2(EOL), 10.3(EOL), 10.4(EOL), 10.5
Fix Version/s: 10.1.46, 10.2.33, 10.3.24, 10.4.14, 10.5.5
Component/s: Storage Engine - InnoDB
Labels:
- contribution
- upstream

fungo submitted MySQL Bug #98990 avg_count_reset for monitor set owner is always NULL in I_S.INNODB_METRICS, observing that a call fields[METRIC_AVG_VALUE_RESET]->set_notnull() is missing when the MONITOR_SET_OWNER flag is set, causing the possibility for the column to appear as NULL in INFORMATION_SCHEMA.INNODB_METRICS.

His suggested fix was applied to MySQL 5.7.31 as
Bug#31084706 AVG_COUNT_RESET FOR MONITOR SET OWNER IS ALWAYS NULL IN I_S.INNODB_METRICS. Even though the bug affects MySQL 5.6, the fix was not applied there.

blocks

MDEV-23163 Merge new release of InnoDB 5.7.31 to 10.2

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