Issuing a ResultSetMetaData isSearchable() against a computing column returns a TRUE value. i.e. SELECT NAME, ADDRESS, 1 FROM EMPLOYEE .... will return a value of TRUE for isSearchable against the computed value (1) in the SELECT list. Is that what is supposed to be returned for a computed column?
It may be that I misunderstood the semantics for what isSearchable() is supposed to do. I thought that a column with isSearchable()=true can be used in a subsequent WHERE clause.