| 1|{"f1":1, "f2":100, "f3":100000, "f4":'a', "f5":"doris", "f6":"2023-02-26", "f7":"2023-02-26 17:58", "f8":1.01, "f9":3.1415926, "f10":1.1} |
| 2|{"f1":1, "f2":100, "f3":100000, "f4":'a', "f5":"doris", "f6":"2023-02-26", "f7":null, "f8":null, "f9":null, "f10":1.1} |
| 3|{'f1':1, 'f2':100, 'f3':100000, 'f4':'a', 'f5':"doris", 'f6':"2023-02-26", 'f7':null, 'f8':null, 'f9':null, 'f10':1.1} |
| 4|{f1:1, f2:100, f3:100000, f4:'a', f5:"doris", f6:"2023-02-26", f7:"2023-02-26 17:58", f8:1.01, f9:3.1415926, f10:1.1} |
| 5|{f1: 1, f2: 100, f3: 100000, f4: a, f5: doris, f6: 2023-02-26, f7: "2023-02-26 17:58", f8: 1.01, f9: 3.1415926, f10: 1.1} |
| 6|{"f10":1.1, "f9":3.1415926, "f8":1.01, "f7":"2023-02-26 17:58", "f6":"2023-02-26", "f5":"doris", "f4":'a', "f3":100000, "f2":100, "f1":1} |
| 7|{f10:1.1, f9:3.1415926, f8:1.01, f7:"2023-02-26 17:58", f6:2023-02-26, f5:doris, f4:a, f3:100000, f2:100, f1:1} |
| 8|{f10:1.1, f9:3.1415926, f8:1.01, f7:"2023-02-26 17:58", f6:2023-02-26, f5:doris, f4:null, f3:null, f2:null, f1:1} |
| 9|{"f1":null, "f2":null, "f3":null, "f4":null, "f5":null, "f6":null, "f7":null, "f8":null, "f9":null, "f10":null} |
| 10|{1, 100, 100000, 'a', "doris", "2023-02-26", "2023-02-26 17:58", 1.01, 3.1415926, 1.1} |
| 11|{1, 100, 100000, 'a', "doris", "2023-02-26", null, null, null, 1.1} |
| 12|{null, null, null, null, null, null, null, null, null, null} |
| 13|\N |
| 14|{"f1":1, "f2":100, "f3":100000, "f4":'a', "f5":"", "f6":"2023-02-26", "f7":null, "f8":null, "f9":null, "f10":1.1} |
