Bug #118130 8.0.27 DDL performance degradation - Merge Sort
Submitted: 8 May 6:53 Modified: 8 May 9:59
Reporter: Xizhe Zhang (OCA) Email Updates:
Status: Verified Impact on me:
None 
Category:MySQL Server: DDL Severity:S5 (Performance)
Version:8.0 OS:Any
Assigned to: CPU Architecture:Any
Tags: Contribution

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[8 May 7:22] Xizhe Zhang 
Hello, Verification Team, this is my patch based on 8.0.42 for Problem 1.

(*) I confirm the code being submitted is offered under the terms of the OCA, and that I am authorized to contribute it.

Attachment: ddl_merge_sort_problem_1.diff (application/octet-stream, text), 2.05 KiB.
[8 May 8:11] Xizhe Zhang 
Hello, this is my patch for Problem 2. I found that 8.0.42 made some changes to the 'File_reader', so it is based on 8.0.27.

(*) I confirm the code being submitted is offered under the terms of the OCA, and that I am authorized to contribute it.

Attachment: ddl_merge_sort_problem_2.diff (application/octet-stream, text), 4.89 KiB.