Bug #119402 EXCEPT operation incorrectly removes rows with NULL and non-NULL combination when subtracting sets with NULL values

Submitted: 15 Nov 2025 8:39 Modified: 7 Dec 2025 20:50
Reporter: cl hl Email Updates:
Status: Verified Impact on me:
None 
Category:MySQL Server: Optimizer Severity:S3 (Non-critical)
Version:9.4.0 OS:Any
Assigned to: CPU Architecture:Any

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