Method _get_key

test/sql/test_metadata.py:1641–1646

(i)

        table_c = table.to_metadata(meta2)

        def _get_key(i):
            return (
                [i.name, i.unique]
                + sorted(i.kwargs.items())
                + [str(col) for col in i.expressions]
            )

        eq_(
            sorted([_get_key(i) for i in table.indexes]),