WL#9678: Remove EXPLAIN PARTITIONS and EXTENDED options

Affects: Server-8.0   —   Status: Complete 

EXTENDED and PARTITIONS flags of EXPLAIN were deprecated in 5.7. This work is to
* Remove EXTENDED and PARTITIONS keywords from EXPLAIN

This will help clean up readability of the manual:
http://dev.mysql.com/doc/refman/8.0/en/execution-plan-information.html

Having multiple formats (traditional and json) plus multiple flags does not help
readability.



F1) Remove keywords EXTENDED and PARTITIONS in EXPLAIN.

            

                    

    

        


    
    

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