[jira] [Created] (SPARK-28598) Few date time manipulation functions does not provide versions supporting Column as input through the Dataframe API

["Weichen Xu (JIRA)" <ji...@apache.org>]

Weichen Xu created SPARK-28598:
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             Summary: Few date time manipulation functions does not provide versions supporting Column as input through the Dataframe API
                 Key: SPARK-28598
                 URL: https://issues.apache.org/jira/browse/SPARK-28598
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 2.4.3
            Reporter: Weichen Xu


We need add such functions like:

{code}
def add_months(startDate: Column, numMonths: Column)
def date_add(start: Column, days: Column): Column
def date_sub(start: Column, days: Column): Column
{code}

so that the `numMonth`/`days` args could be column or sql expressions.




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