Artem Kupchinskiy created SPARK-33689:
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Summary: RowEncoder primitive arrays support
Key: SPARK-33689
URL: https://issues.apache.org/jira/browse/SPARK-33689
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.0.1
Reporter: Artem Kupchinskiy
Currently, even non-nullable array fields are represented as WrappedArray.ofRef
in external rows. It leads to memory footprint, as well as unnecessary cycles
in boxing/unboxing operations. Ideally, if arrays are non-nullable and contain
primitive values, they should be represented as specialized less-overhead
versions of WrappedArray.
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