本文整理汇总了Python中test.lib.schema.Table.alias方法的典型用法代码示例。如果您正苦于以下问题：Python Table.alias方法的具体用法？Python Table.alias怎么用？Python Table.alias使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类test.lib.schema.Table的用法示例。
在下文中一共展示了Table.alias方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_table_plus_column_exceeds_length
# 需要导入模块: from test.lib.schema import Table [as 别名]
# 或者: from test.lib.schema.Table import alias [as 别名]
def test_table_plus_column_exceeds_length(self):
"""test that the truncation occurs if tablename / colname are only
greater than the max when concatenated."""
compile_dialect = default.DefaultDialect(label_length=30)
m = MetaData()
a_table = Table(
'thirty_characters_table_xxxxxx',
m,
Column('id', Integer, primary_key=True)
)
other_table = Table(
'other_thirty_characters_table_',
m,
Column('id', Integer, primary_key=True),
Column('thirty_characters_table_id',
Integer,
ForeignKey('thirty_characters_table_xxxxxx.id'),
primary_key=True
)
)
anon = a_table.alias()
self.assert_compile(
select([other_table,anon]).
select_from(
other_table.outerjoin(anon)
).apply_labels(),
"SELECT other_thirty_characters_table_.id AS "
"other_thirty_characters__1, "
"other_thirty_characters_table_.thirty_characters_table_id "
"AS other_thirty_characters__2, thirty_characters_table__1.id "
"AS thirty_characters_table__3 "
"FROM other_thirty_characters_table_ "
"LEFT OUTER JOIN thirty_characters_table_xxxxxx "
"AS thirty_characters_table__1 ON "
"thirty_characters_table__1.id = "
"other_thirty_characters_table_.thirty_characters_table_id",
dialect=compile_dialect)
self.assert_compile(
select([other_table, anon]).
select_from(
other_table.outerjoin(anon)
).apply_labels(),
"SELECT other_thirty_characters_table_.id AS "
"other_thirty_characters__1, "
"other_thirty_characters_table_.thirty_characters_table_id "
"AS other_thirty_characters__2, "
"thirty_characters_table__1.id AS thirty_characters_table__3 "
"FROM other_thirty_characters_table_ "
"LEFT OUTER JOIN thirty_characters_table_xxxxxx "
"AS thirty_characters_table__1 ON "
"thirty_characters_table__1.id = "
"other_thirty_characters_table_.thirty_characters_table_id",
dialect=compile_dialect
)