[MDEV-23569] temporary tables can overwrite existing files - Jira

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Details

Type: Bug
Status: Closed (View Workflow)
Priority: Blocker
Resolution: Fixed
Affects Version/s: 10.5, 10.1(EOL), 10.2(EOL), 10.3(EOL), 10.4(EOL)
Fix Version/s: 10.1.48, 10.2.35, 10.3.26, 10.4.16, 10.5.7
Component/s: Data Definition - Create Table
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Description

MyiSAM/Aria traditionally overwrite exiting MYI/MYD/MAI/MAD files when creating a new table.

This, kind of, made sense, because before ~~MDEV-11412~~ there was no way to remove stale MyISAM/Aria files.

But temporary tables use generated file names that are supposed to prevent filename collisions. They should not overwrite files on collisions, because there should be no collisions. And if a conflict does happen, it usually indicates that something fishy is going on and an error message would be safer than any destructive action.

This bug was reported by RACK911 LABS

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relates to

MDEV-23570 deprecate keep_files_on_create

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Assignee:: Sergei Golubchik

Reporter:: Sergei Golubchik

Votes:: 0 Vote for this issue

Watchers:: 2 Start watching this issue

Dates

Created:: 2020-08-25 12:14

Updated:: 2020-10-06 18:52

Resolved:: 2020-08-26 09:10

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