How to convert column of arrays of strings to strings?

Question

I have a column, which is of type array < string > in spark tables. I am using SQL to query these spark tables. I wanted to convert the array < s

Answer 1

You can cast array to string at create this df not at output

newdf = df.groupBy('aaa')
  .agg(F.collect_list('bbb').("string").alias('ccc'))

outputdf = newdf.select(
  F.concat_ws(', ' , newdf.aaa, F.format_string('xxxxx(%s)', newdf.ccc)))