> EXPLAIN ALTER TABLE ?

Good thing: People recognize it.
Bad thing:  People might not be able to tell the difference between
            a DDL and DML result.

What about "EXPLAIN DDL ..."?

The extra keyword ("DDL") makes it a bit more explicit that the 
results are not comparable to the standard explain output.

-- 
Steven Lembark                                             3646 Flora Pl
Workhorse Computing                                   St Louis, MO 63110
lemb...@wrkhors.com                                      +1 888 359 3508


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