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#** Format of input data & output data | #** Format of input data & output data | ||
#*** Definition of column | #*** Definition of column | ||
#*** [[Data type]] of column | #*** [[Data type]] of column | ||
#** Rows count of data or file size<ref>[https://stackoverflow.com/questions/5920333/how-to-check-size-of-a-file bash - How to check size of a file? - Stack Overflow]</ref> | #** Rows count of data or file size<ref>[https://stackoverflow.com/questions/5920333/how-to-check-size-of-a-file bash - How to check size of a file? - Stack Overflow]</ref> | ||
#** If the input data came from previous step, you should check the format of data generated by previous step before executing the process. | #** [https://en.wikipedia.org/wiki/Data_dependency Data dependency]: If the input data came from previous step, you should check the format of data generated by previous step before executing the process. | ||
# Progressive update | # Progressive update | ||