Bug #120850 Optimizer misses impossible INNER JOIN condition with IS NULL and normal equality
Submitted: 3 Jul 3:32 Modified: 3 Jul 9:57
Reporter: Zack Morgan Email Updates:
Status: Verified Impact on me:
None 
Category:MySQL Server: Optimizer Severity:S5 (Performance)
Version:9.7.1 OS:Linux (Ubuntu (22.04.4 LTS))
Assigned to: CPU Architecture:x86 (x86_64, Intel(R) Xeon(R) Gold 5220)
Tags: Optimizer, performance, query-optimization

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[3 Jul 3:32] Zack Morgan
mysql missed impossible condition reproduction sql file

Attachment: mysql_missed_impossible_condition_repro.zip (application/x-zip-compressed, text), 4.74 KiB.