Hi @gvvishnu ,

Thanks for your question.

My understanding is that the Apache Spark `hash()` function implements the `org.apache.spark.sql.catalyst.expressions.Murmur3Hash` expression.

You can see this in the Spark source code here:

https://github.com/apache/spark/blob/master/sql/core/src/test/resources/sql-functions/sql-expression...

The best way however to confirm that this is equivalent to the existing 'murmur hash function in hadoop' that you have previously used is to do some tests and comparisons. Please do that testing and verify that this function returns the expected results.

Thank you.