Richard Chen created SPARK-48067:
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Summary: Fix Variant default columns for more complex default
variants
Key: SPARK-48067
URL: https://issues.apache.org/jira/browse/SPARK-48067
Project: Spark
Issue Type: Sub-task
Components: Spark Core
Affects Versions: 4.0.0
Reporter: Richard Chen
Default columns are stored as structfield metadata (string -> string) map. This
means the literal values are stored as strings.
However, the string representation of a variant is the JSONified string. Thus,
we need to wrap the string with `parse_json` to correctly use the default values
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