def test_changing_datatype(conn):
with closing(conn.cursor()) as cursor:
datasource = name_to_datasource(cursor, "storagetest")
entitytype = name_to_entitytype(cursor, "UtranCell")
timestamp = pytz.utc.localize(datetime.utcnow())
attribute_names = ['site_nr', 'height']
datapackage_a = DataPackage(
attribute_names=attribute_names,
rows=[
(10023, timestamp, ('10023', '15'))
]
)
datapackage_b = DataPackage(
attribute_names=attribute_names,
rows=[
(10023, timestamp, ('10023', '25.6'))
]
)
attributes = datapackage_a.deduce_attributes()
attributestore = AttributeStore(datasource, entitytype, attributes)
attributestore.create(cursor)
conn.commit()
attributestore.store_txn(datapackage_a).run(conn)
attributestore.store_txn(datapackage_b).run(conn)
conn.commit()
column_names = get_column_names(conn, "attribute_history",
attributestore.table_name())
eq_(len(column_names), 6)
def test_extra_column(conn):
with closing(conn.cursor()) as cursor:
datasource = name_to_datasource(cursor, "storagetest")
entitytype = name_to_entitytype(cursor, "UtranCell")
timestamp = pytz.utc.localize(datetime.utcnow())
datapackage_a = DataPackage(
attribute_names=['test0', 'test1'],
rows=[
(10023, timestamp, ('10023', '0.9919'))
]
)
datapackage_b = DataPackage(
attribute_names=['test0', 'test1', "test2"],
rows=[
(10023, timestamp, ('10023', '0.9919', '17'))
]
)
attributes = datapackage_a.deduce_attributes()
attributestore = AttributeStore(datasource, entitytype, attributes)
attributestore.create(cursor)
conn.commit()
attributestore.store_txn(datapackage_a).run(conn)
attributestore.store_txn(datapackage_b).run(conn)
conn.commit()
column_names = get_column_names(conn, 'attribute_history',
attributestore.table_name())
eq_(len(column_names), 7)