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https://issues.apache.org/jira/browse/SPARK-37348?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17444636#comment-17444636
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Tim Schwab commented on SPARK-37348:
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Also, this has been the case for over 6 years:
https://github.com/apache/spark/pull/6783.
> PySpark pmod function
> ---------------------
>
> Key: SPARK-37348
> URL: https://issues.apache.org/jira/browse/SPARK-37348
> Project: Spark
> Issue Type: New Feature
> Components: PySpark
> Affects Versions: 3.2.0
> Reporter: Tim Schwab
> Priority: Minor
> Labels: newbie
>
> Because Spark is built on the JVM, in PySpark, F.lit(-1) % F.lit(2) returns
> -1. However, the modulus is often desired instead of the remainder.
>
> There is a PMOD() function in Spark SQL, but not in PySpark. So at the
> moment, the two options for getting the modulus is to use F.expr("pmod(A,
> B)"), or create a helper function such as:
>
> {code:java}
> def pmod(dividend, divisor):
> return F.when(dividend < 0, (dividend % divisor) +
> divisor).otherwise(dividend % divisor){code}
>
>
> Neither are optimal - pmod should be native to PySpark as it is in Spark SQL.
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