MySQL Getting around error 1093

Question

Error 1093 states that you can\'t UPDATE or DELETE using a subquery if your subquery queries the table you are deleting from.

So you can\'t do

delete         


        

Answer 1

Simplified:

-- Collect ids
CREATE TEMPORARY TABLE cleanup_lookup AS 
SELECT id FROM table1 WHERE condition;

-- Delete the selected records
DELETE t FROM table1 t INNER JOIN cleanup_lookup l ON t.id = l.id;

-- Temporary tables get dropped when the connection is closed.