sql.function on pyspark2.4.0 bug element_at of new functions and solutions

On Friday I found a bug pyspark2.4.0, and put on the spark ISSUE

https://issues.apache.org/jira/browse/SPARK-29240?page=com.atlassian.jira.plugin.system.issuetabpanels%3Aall-tabpanel

Official high efficiency, the next day put PR on github, gave resolved

https://github.com/apache/spark/pull/25950

The first report bug, ha ha, I feel a little excited!

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Origin www.cnblogs.com/wondersoko/p/zly.html