Github user dongjoon-hyun commented on the issue: https://github.com/apache/spark/pull/20705 For the above two JSON failures, they are `MetastoreDataSourcesSuite` and `PartitionedTablePerfStatsSuite`. They are not designed to `parquet`. They are general test cases. If we explicitly set it to `parquet`, we should change it when we test it to new data source again and again. > How about we explicitly set spark.sql.sources.default to parquet for both test cases in #20705 (comment) too? Instead, I think we had better file two JIRA issues as JSON improvement if that is feasible.
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