[MDEV-31728] Cursor protocol returns wrong result for SELECT ROW(1,2,3) = (SELECT 1,2,NULL) Created: 2023-07-18  Updated: 2023-11-28

Status: Open
Project: MariaDB Server
Component/s: None
Affects Version/s: 10.4, 10.5, 10.6, 10.9, 10.10, 11.0, 11.1, 11.2
Fix Version/s: 10.4, 10.5, 10.6, 11.0, 11.1, 11.2

Type: Bug Priority: Major
Reporter: Lena Startseva Assignee: Oleksandr Byelkin
Resolution: Unresolved Votes: 0
Labels: None

Issue Links:
Relates
relates to MDEV-28585 Wrong result for view defined as SELE... Open
relates to MDEV-31005 Make working cursor-protocol Stalled

 Description   

Testcase (run MTR test with --cursor-protocol):

SELECT ROW(1,2,3) = (SELECT 1,2,NULL);

Expected result:

ROW(1,2,3) = (SELECT 1,2,NULL)
 
NULL

Actual result:

ROW(1,2,3) = (SELECT 1,2,NULL)
 
0


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