Get the last element from Apache Spark SQL split() Function

Question

I want to get the last element from the Array that return from Spark SQL split() function.

split(4:3-2:3-5:4-6:4-5:2,\'-\')

I know it can get b

Answer 1

Please check substring_index it should work exactly as you want:

substring_index(lit("1-2-3-4"), "-", -1) // 4