col_a	col_b	col_c	col_d	col_e	col_f	col_h	col_i	col_g
0	<NA>	<NA>	<NA>	<NA>	<NA>	1.00	<NA>	<NA>	<NA>
1	2.00	b	2021-01-02 00:00:00	<NA>	<NA>	2.00	TestEnum.VALUE_A	<NA>	b
2	3.00	d	2021-01-03 00:00:00	2021-04-02	<NA>	3.00	TestEnum.VALUE_B	2021-04-02 00:00:00	d
3	4.00	d	2021-01-04 00:00:00	2021-04-02	<NA>	4.00	TestEnum.VALUE_B	2021-04-02 00:00:00	d