Mysterious SQL statement on server launch

[Bob Ngu]

So I noticed that the following SQL statements got executed on
launching the server process, anyone know where they come from? I
suspect this has something to do with Rails caching.
←[4;35;1mPreference Load (0.0ms)←[0m ←[0mSELECT * FROM
`preferences` LIMIT 1
←[0m
←[4;36;1mPreference Columns (15.0ms)←[0m ←[0;1mSHOW FIELDS FROM
`preferences
`←[0m
←[4;35;1mMessage Columns (15.0ms)←[0m ←[0mSHOW FIELDS FROM
`communications`←
[0m
←[4;36;1mAllPerson Columns (16.0ms)←[0m ←[0;1mSHOW FIELDS FROM
`people`←[0m
←[4;35;1mPerson Columns (16.0ms)←[0m ←[0mSHOW FIELDS FROM `people`←
[0m
←[4;36;1mForumPost Columns (15.0ms)←[0m ←[0;1mSHOW FIELDS FROM
`posts`←[0m
←[4;35;1mTopic Columns (0.0ms)←[0m ←[0mSHOW FIELDS FROM `topics`←
[0m

Bob