rdblue opened a new pull request #106: Deep copy maps and lists in GenericDataFile. URL: https://github.com/apache/incubator-iceberg/pull/106 GenericDataFile.copy should copy maps and lists. Because containers are reused while reading, not copying inner lists and maps causes instances in scan tasks to have incorrect data and can cause concurrent modification exceptions. Split planning correctness was not affected by this bug because it happens before the data file instance is copied and reused.
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