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https://issues.apache.org/jira/browse/SPARK-32731?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-32731:
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Assignee: Apache Spark
> Add tests for arrays/maps of nested structs to ReadSchemaSuite to test
> structs reuse
> ------------------------------------------------------------------------------------
>
> Key: SPARK-32731
> URL: https://issues.apache.org/jira/browse/SPARK-32731
> Project: Spark
> Issue Type: Test
> Components: SQL, Tests
> Affects Versions: 3.0.0
> Reporter: Muhammad Samir Khan
> Assignee: Apache Spark
> Priority: Major
>
> Splitting tests originally posted in
> [PR|[https://github.com/apache/spark/pull/29352]] for SPARK-32531. The added
> tests cover cases for maps and arrays of nested structs for different file
> formats. Eg, [https://github.com/apache/spark/pull/29353] and
> [https://github.com/apache/spark/pull/29354] add object reuse when reading
> ORC and Avro files. However, for dynamic data structures like arrays and
> maps, we do not know just by looking at the schema what the size of the data
> structure will be so it has to be allocated when reading the data points. The
> added tests provide coverage so that objects are not accidentally reused when
> encountering maps and arrays.
> AFAIK this is not covered by existing tests.
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