2005-01-25  Bas Driessen <bas.driessen@xobas.com>

	* libgda/gda-data-model-array.c: introduced new
	gda_data_model_append_row() method and added
	gda_data_model_changed() signal to all functions
	that change the contents of the data-model.

	* libgda/gda-data-model-base.c
	(gda_data_model_base_append_row): Use provider
	dependent implementation.

	* libgda/gda-data-model-hash.c: introduced
	new gda_data_model_hash_append_row() method.

	* providers/mysql/gda-mysql-provider.[ch]: change
	recordset implementation to GDA_TYPE_DATA_MODEL_ARRAY.

	* providers/mysql/gda-mysql-recordset.[ch]: introduced
	new methods gda_mysql_recordset_append_row(),
	gda_mysql_recordset_remove_row, gda_mysql_recordset_update_row

	* providers/postgres/gda-postgres-recordset.c: changed
	gda_postgres_recordset_append_values() to
	gda_postgres_recordset_append_row() method.
	(gda_postgres_recordset_update_row):
	Fixed updating of an appended row.