ENH: Add beginning of month and end of month functions

[MrPowers]

Feature Type

• [ ] Adding new functionality to quinn

• [ ] Changing existing functionality in quinn

• [ ] Removing existing functionality in quinn

Problem Description

Kind of weird syntax to compute beginning and end of month:

Feature Description

Add beginning_of_month and end_of_month functions that are easier to read.

Additional Context

Article on how to do this with Spark Scala: https://mungingdata.com/apache-spark/start-end-month-last-day-date-trunc/

[SemyonSinchenko]

The last day already exists in pyspark

https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.last_day.html

[nijanthanvijayakumar]

Is this enhancement still required @SemyonSinchenko ?

If so, can the end_of_month function be built on top of last_day function in Spark? And if that's the ask, can I take this up?