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Ruihang Xia commented on ARROW-6697: ------------------------------------ Hi [~andygrove], I would like to implement this, but here I have two questions :P * Should we check all schemas at the beginning and fail this read if different schemas are found, or check each schema when actually reading a partition? * Is there a parquet file under `PARQUET_TEST_DATA` that contains different schemas in different partitions for testing? Appreciate for anything helps. > [Rust] [DataFusion] Validate that all parquet partitions have the same schema > ----------------------------------------------------------------------------- > > Key: ARROW-6697 > URL: https://issues.apache.org/jira/browse/ARROW-6697 > Project: Apache Arrow > Issue Type: New Feature > Components: Rust, Rust - DataFusion > Reporter: Andy Grove > Priority: Major > > When reading a partitioned Parquet file in DataFusion, the schema is read > from the first partition and it is assumed that all other partitions have the > same schema. > It would be better to actually validate that all of the partitions have the > same schema since there is no support for schema merging yet. -- This message was sent by Atlassian Jira (v8.3.4#803005)