This is the query I'm using:

`ALTER TABLE apartment ADD technical TEXT NOT NULL AFTER is_sale`

Why does it produce a syntax error?

EDIT: 

`ALTER TABLE apartment ADD COLUMN technical TEXT NOT NULL AFTER is_sale` still produces an error:

`Error: (1064) You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'ALTER TABLE andreevka_apartment ADD COLUMN technincal TEXT NOT NULL AFTER' at line 1`

Also doesn't validate: <http://developer.mimer.com/validator/parser200x/index.tml#parser>