Alexander Hagerf created SPARK-30131:
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Summary: Add array_median function
Key: SPARK-30131
URL: https://issues.apache.org/jira/browse/SPARK-30131
Project: Spark
Issue Type: New Feature
Components: SQL
Affects Versions: 2.4.4
Reporter: Alexander Hagerf
Fix For: 3.0.0
It is known that there isn't any exact median function in Spark SQL, and this
might be a difficult problem to solve efficiently. However, to find the median
for an array should be a simple task, and something that users can utilize when
collecting numeric values to a list or set.
This can already be achieved by using sorting and choosing element, but can get
cumbersome and if a fully tested function is provided in the API, I think it
can solve some headache for many.
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