[MINOR] Improve documentation of concat functions in pyspark #51086
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The current docs are missing information on the behavior in case on null columns
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I enabled actions in my fork, however I am unable to retrigger the check. |
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Thanks for contribution! Would you follow Contributing code changes under https://spark.apache.org/contributing.html? For example, we need to set up JIRA first. |
HyukjinKwon
changed the title
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please enable the Github Action. |
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The current docs are missing information on the behavior in case on null columns
What changes were proposed in this pull request?
Add documentation on null behavior and ensure
concat_wshas an example showing how it behaves for nulls.