Format of criteria set: property => value
The criteria set also supports OR-conditions: property => array( value1, orValue2 )
If the additional SQL is a condition, this condition will be glued to the rest
of the query using an AND operator. Note that this is as far as this method
can go, there is no way to glue additional SQL using an OR-condition.
This method provides access to an underlying mechanism in the RedBeanPHP architecture
to find beans using criteria sets. However, please do not use this method
for complex queries, use plain SQL instead ( the regular find method ) as it is
more suitable for the job. This method is
meant for basic search-by-example operations.