MySQL Bugs: #114015: 'Undo log record is to big error' when updating column

Bug #114015	'Undo log record is to big error' when updating column
Submitted:	16 Feb 2024 10:14	Modified:	16 Feb 2024 11:24
Reporter:	Wilhelm Laschinger	Email Updates:
Status:	Duplicate	Impact on me:	None
Category:	MySQL Server: InnoDB storage engine	Severity:	S2 (Serious)
Version:	8.0.32, 8.036, 8.3	OS:	Any
Assigned to:		CPU Architecture:	Any
Tags:	longtext, unique key, UPDATE

File:	Maximum allowed size is 50MB.
Description:
Privacy:

If the data you need to attach is more than 50MB, you should create a compressed archive of the data, split it to 50MB chunks, and upload each of them as a separate attachment.

To split a large file:

On *nix platforms use the split command e.g. split -b 50MB <my_large_archive> <my_split_archive_prefix>
On windows use WinZip or a similar utility to split the large file

I try to fix the bug by enhancing the conditional restriction that lob field can be stored locally on the page.

Attachment: undo_log_record_too_big_for_lob_stored_locally.patch (application/octet-stream, text), 777 bytes.