mysql - Why am I getting `deleting from reference tables` even though I have disables foreign keys -


so deleting records table joining table table.

i have disabled foreign keys before started running statement.

so have 2 tables , b , deleting columns table using join column b delete records match on column id , 1 more criteria in clause.

here query

set foreign_key_checks=0;  delete db.a db.a join db.b using(id) name='xx';  set foreign_key_checks=1;

why still following 'state' in mysql process list

deleting reference tables

because "referencing table" (db.a) in multi table query (db.a , db.b).

if don't specify table on "delete join", query not work, because mysql not know table trying update.

thereby reference table delete.


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