help how to read a csv with variable number of columns

[djouallah]

I am doing a benchmarks to test the ETL performance for multiple Python Engine, I could not figure out how to do the same with databend, any help will be appreciate it

https://github.com/djouallah/Light_ETL_Challenge

[youngsofun]

copy into your_table_with_3_colums from (select $1, $2, $3 from @your_stage/path_to_csvs) file_format = (type=csv)

[djouallah]

csv has variable number of columns