schemaobj.py 文件源码

def index(self, name, tablename, columns, schema=None, **kw):
        t = sa_schema.Table(
            tablename or 'no_table', self.metadata(),
            schema=schema
        )
        idx = sa_schema.Index(
            name,
            *[util.sqla_compat._textual_index_column(t, n) for n in columns],
            **kw)
        return idx