Bug #91985 Error code:2013. lost connection to mysql server during query
Submitted: 13 Aug 2018 1:26 Modified: 13 Aug 2018 7:02
Reporter: Nur Amirah Md Sofwan Email Updates:
Status: Can't repeat Impact on me:
None 
Category:MySQL Workbench: SQL Editor Severity:S1 (Critical)
Version: OS:Any
Assigned to: CPU Architecture:Any

[13 Aug 2018 1:26] Nur Amirah Md Sofwan 
Description:
Error code:2013. lost connection to mysql server during query.

mysql workbench has encountered problem. it says index was out of range. must be non negative and less than the size of collection

How to repeat:
Error code:2013. lost connection to mysql server during query.

mysql workbench has encountered problem. it says index was out of range. must be non negative and less than the size of collection

Suggested fix:
fix the fetching data. since my data has 15k data
[13 Aug 2018 7:02] MySQL Verification Team 
Hello Nur Amirah,

Thank you for the report.
Please note that not enough information was provided for us to be able to handle this bug.  Please see the instructions at below link on "How To Report Bugs or Problems" https://dev.mysql.com/doc/workbench/en/workbench-reporting-bugs.html

If you can provide more information, feel free to add it to this bug and change the status back to 'Open'.
Also,  common causes of the error that you are seeing is explained at https://dev.mysql.com/doc/refman/5.7/en/error-lost-connection.html

Thank you for your interest in MySQL.

Thanks,
Umesh