That looks like 3 queries. The first two are active record pulling back the structure of the ‘menu’ table, the third item is just a log message, and the fourth is the query that actually pulls back data from the menu table.
Active record will always have some small overhead over straight sql, but the two structure queries are going to be very, very quick.
I don’t know if there are settings that allow yii to cache table structure on production servers. Perhaps someone else could speak to that.