Le 2013-12-07 07:49, Lakshit Arora a écrit :
Hello all, I am trying to fix the bug https://sourceforge.net/p/phpmyadmin/bugs/4154/ . I have few observations regarding this: if you do
SELECT * FROM `sortunion1` UNION SELECT * FROM `sortunion2`
what I think is that when you are trying to query the above one it transforms it into query as follows
|SELECT * FROM `sortunion1` UNION SELECT * FROM `sortunion2` ORDER BY `sortunion2`.`id` DESC LIMIT 0, 25|
but instead if it transforms the same query as
|SELECT * FROM `sortunion1` UNION (SELECT * FROM `sortunion2` ORDER BY `sortunion2`.`id` DESC ) LIMIT 0, 25|
Then there won't be any issue.
Please tell me whether my understanding is correct or not. If yes,then I would like to take up the bug, else please suggest if there is any mistake in my approach.
Hi Lakshit, a better solution is to avoid adding the ORDER BY clause, since the user did not ask for it.