set_type
Description:
Set type of the column as a Type.
For numeric type, GDA_TYPE_NUMERIC should be used. Other types, e.g. g_type_float or
g_type_double can also be used but precision and scale should not be set. In this case appropriate types for
DB implementation will be used, e.g. float4.
Parameters:
| this |
a DbColumn instance |
| type |
Type for column |