GdaXqlColumn
#define GDA_XQL_COLUMN_CONST (obj) GdaXqlItem * gda_xql_column_new (void); GdaXqlItem * gda_xql_column_new_with_data (gint num, gboolean asc);
void
gint num
gboolean asc
#define GDA_XQL_COLUMN_CONST(obj) G_TYPE_CHECK_INSTANCE_CAST((obj), gda_xql_column_get_type(), GdaXqlColumn const)
GdaXqlItem * gda_xql_column_new (void);
GdaXqlItem * gda_xql_column_new_with_data (gint num, gboolean asc);