KazydubB opened a new pull request #1954: DRILL-7509: Incorrect TupleSchema is created for DICT column when querying Parquet files URL: https://github.com/apache/drill/pull/1954 # [DRILL-7509](https://issues.apache.org/jira/browse/DRILL-7509): Incorrect TupleSchema is created for DICT column when querying Parquet files ## Description Removed nested `MapColumnMetadata` from `DictColumnMetadata`'s `schema` when querying `MAP` type from Parquet files (this nested column comes from the Parquet MAP structure). So the `DictColumnMetadata#schema` contains `key` and `value` fields directly. Added Parquet's `Type.Repetition` to `Metadata_V4` cache file to retain the actual `DataMode` of leaf primitives (previously this mode was computed based on max `repetition` and max `definition` levels, see javadoc @ `ParquetTableMetadataUtils#getDataMode(Type.Repetition)`).
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