Hi parquet developers,

I’m wondering if anyone consumes the `parquet-scala` dependency in your 
project, the module exists for a long time but with rare code change[1], all 
recently commit applied to this module is just dependency upgrading / build 
fixing [2].

I suggest retiring the parquet-scala module, or even dropping it directly.

The module only contains one `Dsl` class[3], which is thin wrapper of the Java 
API, users are easy to copy and embed it if we drop the parquet-scala module. 
Additionally, it's rare to publish a scala lib that only supports a single 
scala binary version, most scala libs support 2~3 scala binary versions in each 
version.

[1] https://github.com/apache/parquet-java/commits/master/parquet-scala
[2] https://github.com/apache/parquet-java/pull/3044
[3] 
https://github.com/apache/parquet-java/blob/master/parquet-scala/src/main/scala/org/apache/parquet/filter2/dsl/Dsl.scala
 

Thanks,
Cheng Pan



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