How can I remove unique column laravel 5

Question

How can I dropUnique the column a_b from z table?

If it would be just column a, we can do this:

$table->dropUnique('z_a_unique');

I've tried:

$table->dropUnique('z_a_b_unique');

But obviously it didn't work. Thanks for your help in advance!

Answer 1

dropUnqiue() will drop index, not the column. You need to use dropColumn() after dropUnique() :

$table->dropColumn('a_b');

Answer 2

Actually, the answer is in the question, sorry guys, it works like this:

$table->dropUnique('z_a_b_unique');

And solved my problem