Now the 3 functions that allow you to write plain SQL queries
also work if you omit the `SELECT ...` part of the query.
If you do this the code will check and notice that the first
token of the query is a "FROM" token and then automatically
build the SELECT part of the query based on the tags of the struct.
Everything is cached, so the impact on performance should be negligible.
The affected functions are:
- Query()
- QueryOne()
- QueryChunks()