Bug #80580 count(*) much slower on 5.7 than 5.6
Submitted: 2 Mar 2016 6:43 Modified: 16 Feb 2017 18:36
Reporter: Qi Xiaobin Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: Optimizer Severity:S3 (Non-critical)
Version:5.7.2, 5.7.10, 5.7.11 OS:Any (Amazon Linux AMI)
Assigned to: CPU Architecture:Any
Tags: count, query performance, WL#6742

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