Many customers have data exported from devices , these data are stored in text files with different date, time, etc and all have the same column structure.
Customers want to union all these text files as one datatable by specify folder, or search condition on specific folders.
According the customer, tableau can do this:
https://help.tableau.com/current/prep/en-us/prep_add_input_data.htm
Thanks.
Thanks Wei for an excellent idea and for the reference. This is also related to support for reading Parquet files.