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About Worklog
The MySQL Worklog are design specifications for some of the items that may be considered for future development.

WL#4441: LOCK_open: Remove requirement of mutex protecting thd->open_tables

Affects: Server-5.5   —   Status: Complete   —   Priority: Medium 

Use thd->LOCK_ha_data to protect thd->open_tables, not LOCK_open.
There is no need to use LOCK_open for that (inspect the code).


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