JigaoLuo opened a new pull request, #7577:
URL: https://github.com/apache/arrow-rs/pull/7577

   # Which issue does this PR close?
   
   No issue but I could create one
   
   Closes #.
   
   # Rationale for this change
    
    This PR is simply fix the warning during building:
    ```
    warning: methods `selection` and `num_rows_selected` are never used
     --> parquet/src/arrow/arrow_reader/read_plan.rs:54:19
      |
   38 | impl ReadPlanBuilder {
      | -------------------- methods in this implementation
   ...
   54 |     pub(crate) fn selection(&self) -> Option<&RowSelection> {
      |                   ^^^^^^^^^
   ...
   78 |     pub(crate) fn num_rows_selected(&self) -> Option<usize> {
      |                   ^^^^^^^^^^^^^^^^^
      |
      = note: `#[warn(dead_code)]` on by default
   
      Compiling parquet_derive_test v55.1.0 (..../arrow-rs/parquet_derive_test)
   warning: `parquet` (lib) generated 1 warning
    ```
   
   
   # What changes are included in this PR?
   
   No
   
   # Are there any user-facing changes?
   
   No
   


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