pt-online-schema-change can silently drop rows
Bug #1225577 reported by
Rob Smith
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Percona Toolkit moved to https://jira.percona.com/projects/PT |
Triaged
|
Undecided
|
Unassigned |
Bug Description
When adding a unique index on a table with pt-online-
Yes, we should check to verify that the columns are unique before running, but there are times the tools insert non-unique rows while PTOSC is running, thus having a final check would be best.
tags: | added: risk |
Changed in percona-toolkit: | |
status: | New → Triaged |
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This looks like this has been fixed in pt-osc 3.0.4 with --check- unique- index-change option.