Robert Juchnicki created SPARK-43322:
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Summary: Spark SQL docs for explode_outer and posexplode_outer
omit behavior for null/empty
Key: SPARK-43322
URL: https://issues.apache.org/jira/browse/SPARK-43322
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.4.0
Reporter: Robert Juchnicki
The Spark SQL documentation for
[explode_outer|https://spark.apache.org/docs/latest/api/sql/index.html#explode_outer]
and
[posexplode_outer|[https://spark.apache.org/docs/latest/api/sql/index.html#posexplode_outer|https://spark.apache.org/docs/latest/api/sql/index.html#posexplode_outer)]]
omits mentioning that null or empty arrays produce nulls. The descriptions do
not appear to be written down in a doc file and are likely pulled from the
`ExpressionDescription` tags for the `Explode` and `PosExplode` generators when
the `GeneratorOuter` wrapper is used.
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