QSqlField: When checking the field type for an aggregated column then it should give the right corresponding data type for the column

QSqlField: When checking the field type for an aggregated column then it should give the right corresponding data type for the column. For example, with this query:

SELECT SUM(id) FROM testtable

Where id is an integer datatype field, then resulting datatype in the result set should be integer too, but with SQLite it defaults to String instead.