Etienne Chauchot created FLINK-21389:
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Summary: ParquetInputFormat should not need parquet schema as user
input
Key: FLINK-21389
URL: https://issues.apache.org/jira/browse/FLINK-21389
Project: Flink
Issue Type: Improvement
Reporter: Etienne Chauchot
_ParquetInputFormat_ takes parquet schema as user input but after split it
reads the parquet schema again here
[https://github.com/apache/flink/blob/52dcf439bb0b8d613fff1efecf015052d5b3a10b/flink-formats/flink-parquet/src/main/java/org/apache/flink/formats/parquet/ParquetInputFormat.java#L170]
it should read the provided user schema.
But better would be to read the schema automatically and not require the user
to provide a schema as spark does
([https://spark.apache.org/docs/latest/sql-data-sources-parquet.html]).
Thus we could add a _ParquetInputFormat_ constructor and allow
_ParquetTableSource_ with no schema parameter
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