Bug #87440 use union index,the value of key_len different with used_key_parts’ value.
Submitted: 16 Aug 2017 14:26 Modified: 20 Mar 2018 19:10
Reporter: kid zhang Email Updates:
Status: Duplicate Impact on me:
None 
Category:MySQL Server: JSON Severity:S3 (Non-critical)
Version:5.7.18 OS:Ubuntu
Assigned to: CPU Architecture:Any
Tags: key_len, used_key_parts

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