Text fields in the source files should be validated on whether the empty values available as well as for the other data types.
In case format section contains the 'na_values' option, the first value of the array should be applied for null values in generated merged_infer file for the text columns.
Text fields in the source files should be validated on whether the empty values available as well as for the other data types. In case format section contains the 'na_values' option, the first value of the array should be applied for null values in generated merged_infer file for the text columns.