alamb opened a new issue, #24540:
URL: https://github.com/apache/datafusion/issues/24540

   ### Is your feature request related to a problem or challenge?
   
   The [API health policy deprecation guidelines] say deprecated APIs remain for
   
   > 6 major versions or 6 months, whichever is longer
   
   `main` is at `55.0.0`, so the next release is `56.0.0` and anything 
deprecated in `50.0.0` or earlier can now be removed.
   
   Four such items remain in the `datafusion-datasource-parquet` crate:
   
   | Item | Deprecated in | Replacement |
   | --- | --- | --- |
   | 
[`fetch_parquet_metadata`](https://github.com/apache/datafusion/blob/main/datafusion/datasource-parquet/src/file_format.rs#L654)
 | 50.0.0 | `DFParquetMetadata::fetch_metadata` |
   | 
[`fetch_statistics`](https://github.com/apache/datafusion/blob/main/datafusion/datasource-parquet/src/file_format.rs#L677)
 | 50.0.0 | `DFParquetMetadata::fetch_statistics` |
   | 
[`statistics_from_parquet_meta_calc`](https://github.com/apache/datafusion/blob/main/datafusion/datasource-parquet/src/file_format.rs#L699)
 | 50.0.0 | `DFParquetMetadata::statistics_from_parquet_metadata` |
   | 
[`ParquetSource::predicate`](https://github.com/apache/datafusion/blob/main/datafusion/datasource-parquet/src/source.rs#L395)
 | 50.2.0 | `ParquetSource::filter` |
   
   [API health policy deprecation guidelines]: 
https://datafusion.apache.org/contributor-guide/api-health.html#deprecation-guidelines
   [upgrade guide]: 
https://github.com/apache/datafusion/tree/main/docs/source/library-user-guide/upgrading
   
   ### Describe the solution you'd like
   
   Remove all four items and supporting code
   
   * While this is a breaking Rust API change, the PR should carry the `api 
change` label
   * DO NOT add a note to the `56.0.0` [upgrade guide], as removing deprecated 
APIs is clear and the compiler has guided people off them in the past
   
   ### Describe alternatives you've considered
   
   N/A
   
   ### Additional context
   
   Follow on to #23080, which did the same sweep at the `49.0.0` cutoff, and 
#24535.
   


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