Frees the records which were returned by glib.relation.Relation.select. This should always be called after glib.relation.Relation.select when you are finished with the records. The records are not removed from the #GRelation.
Gets a field from the records returned by glib.relation.Relation.select. It returns the given field of the record at the given index. The returned value should not be changed.
Deprecated: Rarely used API
The #GTuples struct is used to return records (or tuples) from the #GRelation by glib.relation.Relation.select. It only contains one public member - the number of records that matched. To access the matched records, you must use glib.tuples.Tuples.index.