source_row,reason,order_id,line_id,order_date,category,quantity,unit_price
292,duplicate,SYN-00-00,1,2026-01-01,  Книги  ,1,391.84
293,conflicting_key,SYN-00-01,1,01.01.2026,  Электроника  ,99,820.97
294,missing_required,SYN-DEFECT-0,1,2026/01/01,,2,685.13
295,missing_required,SYN-DEFECT-1,1,2026/01/01,  Дом  ,,685.13
296,invalid_date,SYN-DEFECT-2,1,02/03/2026,  Дом  ,2,685.13
297,invalid_date,SYN-DEFECT-3,1,2026-02-30,  Дом  ,2,685.13
298,invalid_quantity,SYN-DEFECT-4,1,2026/01/01,  Дом  ,0,685.13
299,invalid_quantity,SYN-DEFECT-5,1,2026/01/01,  Дом  ,-2,685.13
300,invalid_price,SYN-DEFECT-6,1,2026/01/01,  Дом  ,2,0
301,invalid_price,SYN-DEFECT-7,1,2026/01/01,  Дом  ,2,12.345
302,invalid_price,SYN-DEFECT-8,1,2026/01/01,  Дом  ,2,NaN